-- This file is part of thesixthroc's Pirate Ship softmod, licensed under GPLv3 and stored at https://github.com/danielmartin0/ComfyFactorio-Pirates.


local Memory = require 'maps.pirates.memory'
local Balance = require 'maps.pirates.balance'
local Math = require 'maps.pirates.math'
local Common = require 'maps.pirates.common'
local SurfacesCommon = require 'maps.pirates.surfaces.common'
local CoreData = require 'maps.pirates.coredata'
local Utils = require 'maps.pirates.utils_local'
local _inspect = require 'utils.inspect'.inspect
local Ai = require 'maps.pirates.ai'
-- local Structures = require 'maps.pirates.structures.structures'
local Boats = require 'maps.pirates.structures.boats.boats'
local Surfaces = require 'maps.pirates.surfaces.surfaces'
-- local Progression = require 'maps.pirates.progression'
local Islands = require 'maps.pirates.surfaces.islands.islands'
local Roles = require 'maps.pirates.roles.roles'
local Gui = require 'maps.pirates.gui.gui'
-- local Sea = require 'maps.pirates.surfaces.sea.sea'
-- local Hold = require 'maps.pirates.surfaces.hold'
-- local Cabin = require 'maps.pirates.surfaces.cabin'
-- local Crowsnest = require 'maps.pirates.surfaces.crowsnest'
-- local Ores = require 'maps.pirates.ores'
-- local Parrot = require 'maps.pirates.parrot'
local Kraken = require 'maps.pirates.surfaces.sea.kraken'

local Jailed = require 'utils.datastore.jail_data'

local Crew = require 'maps.pirates.crew'
local Quest = require 'maps.pirates.quest'
local Shop = require 'maps.pirates.shop.shop'
local Loot = require 'maps.pirates.loot'
local Task = require 'utils.task'
local Token = require 'utils.token'
local Classes = require 'maps.pirates.roles.classes'

local Server = require 'utils.server'
-- local Modifers = require 'player_modifiers'

local tick_tack_trap = require 'maps.pirates.locally_maintained_comfy_forks.tick_tack_trap' --'enemy' force, but that's okay

local Public = {}

function Public.silo_die()
	local memory = Memory.get_crew_memory()
	local destination = Common.current_destination()
	local force = memory.force
	if memory.game_lost == true then return end

	destination.dynamic_data.rocketsilohp = 0
	if destination.dynamic_data.rocketsilos and destination.dynamic_data.rocketsilos[1] and destination.dynamic_data.rocketsilos[1].valid then
		local surface = destination.dynamic_data.rocketsilos[1].surface
		surface.create_entity({name = 'big-artillery-explosion', position = destination.dynamic_data.rocketsilos[1].position})

		if memory.boat and memory.boat.surface_name and surface.name == memory.boat.surface_name then

			if CoreData.rocket_silo_death_causes_loss then
				-- Crew.lose_life()
				Crew.try_lose({'pirates.loss_silo_destroyed'})
			elseif (not destination.dynamic_data.rocketlaunched) and destination.static_params and destination.static_params.base_cost_to_undock and destination.static_params.base_cost_to_undock['launch_rocket'] and destination.static_params.base_cost_to_undock['launch_rocket'] == true then
				Crew.try_lose({'pirates.loss_silo_destroyed_before_necessary_launch'})
			elseif (not destination.dynamic_data.rocketlaunched) then
				Common.notify_force(force, {'pirates.silo_destroyed'})
			end
		end

		destination.dynamic_data.rocketsilos[1].die()
		destination.dynamic_data.rocketsilos = nil
	end
end

-- function Public.damage_silo(final_damage_amount)
-- 	if final_damage_amount == 0 then return end
-- 	local destination = Common.current_destination()
-- 	-- local memory = Memory.get_crew_memory()

-- 	-- if we are doing the 'no damage' quest, then damage in the first 20 seconds after landing doesn't count:
-- 	if destination and destination.dynamic_data and destination.dynamic_data.quest_type == Quest.enum.NODAMAGE then
-- 		if not (destination.dynamic_data.timer and destination.dynamic_data.timeratlandingtime and destination.dynamic_data.timer > destination.dynamic_data.timeratlandingtime + 20) then return end
-- 	end

-- 	-- manual 'resistance:'
-- 	local final_damage_amount2 = final_damage_amount / 4

-- 	destination.dynamic_data.rocketsilohp = Math.max(0, Math.floor(destination.dynamic_data.rocketsilohp - final_damage_amount2))
-- 	if destination.dynamic_data.rocketsilohp > destination.dynamic_data.rocketsilomaxhp then destination.dynamic_data.rocketsilohp = destination.dynamic_data.rocketsilomaxhp end

-- 	if destination.dynamic_data.rocketsilohp <= 0 then
-- 	-- if destination.dynamic_data.rocketsilohp <= 0 and (not destination.dynamic_data.rocketlaunched) then
-- 		Public.silo_die()
-- 		rendering.destroy(destination.dynamic_data.rocketsilohptext)
-- 	else
-- 		rendering.set_text(destination.dynamic_data.rocketsilohptext, 'HP: ' .. destination.dynamic_data.rocketsilohp .. ' / ' .. destination.dynamic_data.rocketsilomaxhp)
-- 	end
-- 	-- if destination.dynamic_data.rocketsilohp < destination.dynamic_data.rocketsilomaxhp / 2 and final_damage_amount > 0 then
-- 	-- 	Upgrades.trigger_poison()
-- 	-- end
-- end


local function biters_chew_stuff_faster(event)
	local memory = Memory.get_crew_memory()
	local destination = Common.current_destination()

	if not (event.cause and event.cause.valid and event.cause.force and event.cause.force.name and event.entity and event.entity.valid and event.entity.force and event.entity.force.name) then return end
	if event.cause.force.name ~= memory.enemy_force_name then return end --Enemy Forces only

	if (event.entity.force.index == 3 or event.entity.force.name == 'environment') then
		event.entity.health = event.entity.health - event.final_damage_amount * 5
		if destination and destination.type and destination.subtype and destination.type == Surfaces.enum.ISLAND and destination.subtype == Islands.enum.MAZE then
			event.entity.health = event.entity.health - event.final_damage_amount * 10
		end
	elseif event.entity.name == 'pipe' then
		event.entity.health = event.entity.health - event.final_damage_amount * 0.5
	elseif event.entity.name == 'stone-furnace' then
		event.entity.health = event.entity.health - event.final_damage_amount * 0.5
	elseif event.entity.name == 'wooden-chest' or event.entity.name == 'stone-chest' or event.entity.name == 'steel-chest' then
		event.entity.health = event.entity.health - event.final_damage_amount * 0.5
	end
end



-- local function event_on_player_repaired_entity(event)
-- 	local entity = event.entity

-- 	if entity and entity.valid and entity.name and entity.name == 'artillery-turret' then
-- 		entity.health = entity.health - 2 --prevents repairing
-- 	end
-- 	--@TODO: somehow fix the fact that drones can repair the turret
-- end


local function protect_special_entities(event)
	-- local memory = Memory.get_crew_memory()
	local entity = event.entity

	if event.cause and event.cause.valid and entity and entity.valid then
		local surfacedata = Surfaces.SurfacesCommon.decode_surface_name(entity.surface.name)
		-- local dest = Common.current_destination()
		if surfacedata.type == Surfaces.enum.CROWSNEST or surfacedata.type == Surfaces.enum.LOBBY then
			entity.health = entity.health + event.final_damage_amount
		end
	end
end


local function damage_to_silo(event)
	local memory = Memory.get_crew_memory()
	local entity = event.entity

	if event.cause and event.cause.valid and entity and entity.valid and entity.force.name == memory.force_name then
		local destination = Common.current_destination()
		if destination.dynamic_data.rocketsilos and
			destination.dynamic_data.rocketsilos[1] and
			destination.dynamic_data.rocketsilos[1].valid and
			entity == Common.current_destination().dynamic_data.rocketsilos[1]
		then
			if string.sub(event.cause.force.name, 1, 4) ~= 'crew' then

				-- play alert sound for all crew members
				if memory.seconds_until_alert_sound_can_be_played_again <= 0 then
					memory.seconds_until_alert_sound_can_be_played_again = Balance.alert_sound_max_frequency_in_seconds

					for _, player_index in pairs(memory.crewplayerindices) do
						local player = game.players[player_index]
						player.play_sound({path = 'utility/alert_destroyed', volume_modifier = 1})
					end
				end

				if Common.entity_damage_healthbar(entity, event.original_damage_amount / Balance.silo_resistance_factor * (1 + Balance.biter_timeofday_bonus_damage(event.cause.surface.darkness))) <= 0 then
					Public.silo_die()
				else
					destination.dynamic_data.rocketsilohp = memory.healthbars[entity.unit_number].health
				end
			else
				entity.health = entity.prototype.max_health
			end
		end
	end
end


local function damage_to_enemyboat_spawners(event)
	local memory = Memory.get_crew_memory()

	if memory.enemyboats and
		#memory.enemyboats > 0 and
		event.cause and
		event.cause.valid and
		event.entity and
		event.entity.valid and
		event.entity.force.name == memory.enemy_force_name
	then
		for i = 1, #memory.enemyboats do
			local eb = memory.enemyboats[i]
			if eb.spawner and eb.spawner.valid and event.entity == eb.spawner then
			-- if eb.spawner and eb.spawner.valid and event.entity == eb.spawner and eb.state == Structures.Boats.enum_state.APPROACHING then
				local damage = event.final_damage_amount
				local adjusted_damage = damage

				adjusted_damage = adjusted_damage / 2.6

				-- if event.cause.name == 'artillery-turret' then
				-- 	adjusted_damage = adjusted_damage / 1
				-- end

				if Common.entity_damage_healthbar(event.entity, adjusted_damage) <= 0 then
					event.entity.die()
				end
			end
		end
	end
end

local function damage_to_artillery(event)
	local memory = Memory.get_crew_memory()

	if not event.cause then return end
	if not event.cause.valid then return end
	if not event.cause.name then return end

	if (event.cause.name == 'small-biter')
		or (event.cause.name == 'small-spitter')
		or (event.cause.name == 'medium-biter')
		or (event.cause.name == 'medium-spitter')
		or (event.cause.name == 'big-biter')
		or (event.cause.name == 'big-spitter')
		or (event.cause.name == 'behemoth-biter')
		or (event.cause.name == 'behemoth-spitter')
	then
		if event.cause.force.name ~= memory.enemy_force_name then return end

		-- play alert sound for all crew members
		if memory.seconds_until_alert_sound_can_be_played_again <= 0 then
			memory.seconds_until_alert_sound_can_be_played_again = Balance.alert_sound_max_frequency_in_seconds

			for _, player_index in pairs(memory.crewplayerindices) do
				local player = game.players[player_index]
				player.play_sound({path = 'utility/alert_destroyed', volume_modifier = 1})
			end
		end

		-- remove resistances:
		-- event.entity.health = event.entity.health + event.final_damage_amount - event.original_damage_amount

		if Common.entity_damage_healthbar(event.entity, event.original_damage_amount / Balance.cannon_resistance_factor * (1 + Balance.biter_timeofday_bonus_damage(event.cause.surface.darkness)), Memory.get_crew_memory().boat) <= 0 then
			event.entity.die()
		end
	else
		event.entity.health = event.entity.prototype.max_health --nothing else should damage it
	end
end

local function damage_to_krakens(event)

	if not event.entity then return end
	if not event.entity.valid then return end
	if not event.entity.name then return end
	if event.entity.name ~= 'biter-spawner' then return end

	if not event.cause then return end
	if not event.cause.valid then return end
	if not event.cause.name then return end

	local memory = Memory.get_crew_memory()

	if event.entity.force.name ~= memory.enemy_force_name then return end

	local surface_name = memory.boat and memory.boat.surface_name
	if not (surface_name == memory.sea_name) then return end

    local unit_number = event.entity.unit_number
	local damage = event.final_damage_amount
	local adjusted_damage = damage

	if event.damage_type.name and event.damage_type.name == 'poison' then
	-- if event.cause.name == 'artillery-turret' then
		adjusted_damage = adjusted_damage / 1.25
	elseif event.damage_type.name and (event.damage_type.name == 'explosion') then
		adjusted_damage = adjusted_damage / 1.5
	elseif event.damage_type.name and (event.damage_type.name == 'fire') then
		adjusted_damage = adjusted_damage / 1.25
	end
	-- and additionally:
	if event.cause.name == 'artillery-turret' then
		adjusted_damage = adjusted_damage / 1.1
	end

	if event.damage_type.name and (event.damage_type.name == 'laser') then
		adjusted_damage = adjusted_damage / 7 --laser turrets are in range. give some resistance
	end

	if Common.entity_damage_healthbar(event.entity, adjusted_damage) <= 0 then
		Kraken.kraken_die(memory.healthbars[unit_number].id)
	end
end




local function damage_to_players_changes(event)
	local memory = Memory.get_crew_memory()

	if not event.cause then return end
	if not event.cause.valid then return end
	if not event.cause.name then return end

	-- if not (event.cause.name == 'small-biter') or (event.cause.name == 'small-spitter') or (event.cause.name == 'medium-biter') or (event.cause.name == 'medium-spitter') or (event.cause.name == 'big-biter') or (event.cause.name == 'big-spitter') or (event.cause.name == 'behemoth-biter') or (event.cause.name == 'behemoth-spitter') then return end

	local player_index = event.entity.player.index
	local class = memory.classes_table and memory.classes_table[player_index]
	local player = game.players[player_index]

	if not (player and player.valid and player.character and player.character.valid) then
        return
    end

	local damage_multiplier = 1

	--game.print('on damage info: {name: ' .. event.damage_type.name .. ', object_name: ' .. event.damage_type.object_name .. '}')

	if event.damage_type.name == 'poison' then --make all poison damage stronger against players
		damage_multiplier = damage_multiplier * Balance.poison_damage_multiplier
	else
		if class then
			if class == Classes.enum.SCOUT then
				damage_multiplier = damage_multiplier * Balance.scout_damage_taken_multiplier
			-- merchant is disabled
			-- elseif class == Classes.enum.MERCHANT then
			-- 	damage_multiplier = damage_multiplier * 1.10
			elseif class == Classes.enum.SAMURAI then
				damage_multiplier = damage_multiplier * Balance.samurai_damage_taken_multiplier
			elseif class == Classes.enum.HATAMOTO then
				damage_multiplier = damage_multiplier * Balance.hatamoto_damage_taken_multiplier
			elseif class == Classes.enum.ROC_EATER then
				damage_multiplier = damage_multiplier * Balance.roc_eater_damage_taken_multiplier
			elseif class == Classes.enum.IRON_LEG then
				if memory.class_auxiliary_data[player_index] and memory.class_auxiliary_data[player_index].iron_leg_active then
					damage_multiplier = damage_multiplier * Balance.iron_leg_damage_taken_multiplier
				end
			elseif class == Classes.enum.VETERAN then
				local chance = Balance.veteran_on_hit_slow_chance
				if Math.random() < chance then
					-- only certain targets accept stickers
					if event.cause.name == 'small-biter' or
						event.cause.name == 'small-spitter' or
						event.cause.name == 'medium-biter' or
						event.cause.name == 'medium-spitter' or
						event.cause.name == 'big-biter' or
						event.cause.name == 'big-spitter' or
						event.cause.name == 'behemoth-biter' or
						event.cause.name == 'behemoth-spitter'
					then
						player.surface.create_entity{
							name = 'slowdown-sticker',
							position = player.character.position,
							speed = 1.5,
							force = player.force,
							target = event.cause
						}
					end
				end
			-- else
			-- 	damage_multiplier = damage_multiplier * (1 + Balance.bonus_damage_to_humans())
			end
		end
	end

	if event.cause.force.name == memory.enemy_force_name then
		damage_multiplier = damage_multiplier * (1 + Balance.biter_timeofday_bonus_damage(event.cause.surface.darkness))
	end --Enemy Forces

	-- game.print('name: ' .. event.cause.name .. ' damage: ' .. event.final_damage_amount)
	-- game.print('multiplier: ' .. damage_multiplier)

	if damage_multiplier > 1 then
		event.entity.health = event.entity.health - event.final_damage_amount * (damage_multiplier - 1)
	elseif damage_multiplier < 1 and event.final_health > 0 then --lethal damage case isn't this easy
		event.entity.health = event.entity.health + event.final_damage_amount * (1 - damage_multiplier)
	end


	-- deal with damage reduction on lethal damage for players
	-- Piratux wrote this code — it tracks player health (except passive regen), and intervenes on a lethal damage event, so it should work most of the time.
	local global_memory = Memory.get_global_memory()

	if damage_multiplier < 1 and event.final_health <= 0 then
		local damage_dealt = event.final_damage_amount * damage_multiplier
		if damage_dealt < global_memory.last_players_health[player_index] then
			event.entity.health = global_memory.last_players_health[player_index] - damage_dealt
		end
	end

	global_memory.last_players_health[player_index] = event.entity.health
end


local function other_enemy_damage_bonuses(event)

	if not event.cause then return end
	if not event.cause.valid then return end
	if not event.cause.name then return end
	if not event.cause.surface then return end
	if not event.cause.surface.valid then return end

	if event.damage_type.name == 'impact' then return end --avoid circularity

	local memory = Memory.get_crew_memory()

	-- if not (event.cause.name == 'small-biter') or (event.cause.name == 'small-spitter') or (event.cause.name == 'medium-biter') or (event.cause.name == 'medium-spitter') or (event.cause.name == 'big-biter') or (event.cause.name == 'big-spitter') or (event.cause.name == 'behemoth-biter') or (event.cause.name == 'behemoth-spitter') then return end
	if event.cause.force.name ~= memory.enemy_force_name then return end --Enemy Forces

	local bonusDamage = event.final_damage_amount * Balance.biter_timeofday_bonus_damage(event.cause.surface.darkness)

	if bonusDamage > 0 then
		event.entity.damage(bonusDamage, event.cause.force, 'impact', event.cause)
	end
end



local function damage_dealt_by_players_changes(event)
	local memory = Memory.get_crew_memory()

	if not event.cause then return end
	if not event.cause.valid then return end
	if not event.entity.valid then return end
	if event.cause.name ~= 'character' then return end

	local character = event.cause
	local player = character.player

	local physical = event.damage_type.name == 'physical'
	local acid = event.damage_type.name == 'acid'

	local player_index = player.index
	local class = memory.classes_table and memory.classes_table[player_index]

	if class and class == Classes.enum.SCOUT and event.final_health > 0 then --lethal damage must be unaffected
		event.entity.health = event.entity.health + (1 - Balance.scout_damage_dealt_multiplier) * event.final_damage_amount
	elseif class and (class == Classes.enum.SAMURAI or class == Classes.enum.HATAMOTO) then
		local samurai = memory.classes_table[player_index] == Classes.enum.SAMURAI
		local hatamoto = memory.classes_table[player_index] == Classes.enum.HATAMOTO

		--==Note this!
		if not (samurai or hatamoto) then return end

		local no_weapon = (not (character.get_inventory(defines.inventory.character_guns) and character.get_inventory(defines.inventory.character_guns)[character.selected_gun_index] and character.get_inventory(defines.inventory.character_guns)[character.selected_gun_index].valid_for_read))

		local melee = (physical or acid) and no_weapon

		local extra_damage_to_deal = 0

		local big_number = 1000

		local extra_physical_damage_from_research_multiplier = 1 + memory.force.get_ammo_damage_modifier('bullet')

		if melee and event.final_health > 0 then
			if physical then
				if samurai then
					extra_damage_to_deal = Balance.samurai_damage_dealt_with_melee * extra_physical_damage_from_research_multiplier
				elseif hatamoto then
					extra_damage_to_deal = Balance.hatamoto_damage_dealt_with_melee * extra_physical_damage_from_research_multiplier
				end
			elseif acid then --this hacky stuff is to implement repeated spillover splash damage, whilst getting around the fact that if ovekill damage takes something to zero health, we can't tell in that event how much double-overkill damage should be dealt by reading off its HP. This code assumes that characters only deal acid damage via this function.
				extra_damage_to_deal = event.original_damage_amount * big_number
			end
		elseif (not melee) and event.final_health > 0 then
			if samurai then
				event.entity.health = event.entity.health + (1 - Balance.samurai_damage_dealt_when_not_melee_multiplier) * event.final_damage_amount
			elseif hatamoto then
				event.entity.health = event.entity.health + (1 - Balance.hatamoto_damage_dealt_when_not_melee_multiplier) * event.final_damage_amount
			end
		end

		if extra_damage_to_deal > 0 then
			if event.entity.health >= extra_damage_to_deal then
				event.entity.damage(extra_damage_to_deal, character.force, 'impact', character) --using .damage rather than subtracting from health directly plays better with entities which use healthbars
			else
				local surplus = (extra_damage_to_deal - event.entity.health)*0.8
				event.entity.die(character.force, character)
				local nearest = player.surface.find_nearest_enemy{position = player.position, max_distance = 2, force = player.force}
				if nearest and nearest.valid then
					nearest.damage(surplus/big_number, character.force, 'acid', character)
				end
			end
		end
	end

	if physical then

		-- QUARTERMASTER BUFFS
		local nearby_players = player.surface.find_entities_filtered{position = player.position, radius = Balance.quartermaster_range, type = {'character'}}

		for _, p2 in pairs(nearby_players) do
			if p2.player and p2.player.valid then
				local p2_index = p2.player.index
				if event.entity.valid and player_index ~= p2_index and memory.classes_table[p2_index] and memory.classes_table[p2_index] == Classes.enum.QUARTERMASTER then
					event.entity.damage((Balance.quartermaster_bonus_physical_damage - 1) * event.final_damage_amount, character.force, 'impact', character) --triggers this function again, but not physical this time
				end
			end
		end


		-- PISTOL BUFFS
		if character.shooting_state.state ~= defines.shooting.not_shooting then
			local weapon = character.get_inventory(defines.inventory.character_guns)[character.selected_gun_index]
			local ammo = character.get_inventory(defines.inventory.character_ammo)[character.selected_gun_index]
			if event.entity.valid and weapon.valid_for_read and ammo.valid_for_read and weapon.name == 'pistol' and (ammo.name == 'firearm-magazine' or ammo.name == 'piercing-rounds-magazine' or ammo.name == 'uranium-rounds-magazine') then
				event.entity.damage(event.final_damage_amount * (Balance.pistol_damage_multiplier() - 1), character.force, 'impact', character) --triggers this function again, but not physical this time
			end
		end
	end
end



local function swamp_resist_poison(event)
	local memory = Memory.get_crew_memory()

	local entity = event.entity
	if not entity.valid then return end

	if not (event.damage_type.name and event.damage_type.name == 'poison') then return end

	local destination = Common.current_destination()
	if not (destination and destination.subtype and destination.subtype == Islands.enum.SWAMP) then return end

	if not (destination.surface_name == entity.surface.name) then return end

	if not ((entity.type and entity.type == 'tree') or (event.entity.force and event.entity.force.name == memory.enemy_force_name)) then return end

	local damage = event.final_damage_amount
	event.entity.health = event.entity.health + damage
end


local function maze_walls_resistance(event)
	-- local memory = Memory.get_crew_memory()

	local entity = event.entity
	if not entity.valid then return end

	local destination = Common.current_destination()
	if not (destination and destination.subtype and destination.subtype == Islands.enum.MAZE) then return end

	if not (destination.surface_name == entity.surface.name) then return end

	if not ((entity.type and entity.type == 'tree') or entity.name == 'rock-huge' or entity.name == 'rock-big' or entity.name == 'sand-rock-big') then return end

	local damage = event.final_damage_amount

	if (event.damage_type.name and (event.damage_type.name == 'explosion' or event.damage_type.name == 'poison')) then
		event.entity.health = event.entity.health + damage
	elseif event.damage_type.name and event.damage_type.name == 'fire' then
		-- put out forest fires:
		for _, e2 in pairs(entity.surface.find_entities_filtered({area = {{entity.position.x - 4, entity.position.y - 4},{entity.position.x + 4, entity.position.y + 4}}, name = "fire-flame-on-tree"})) do
			if e2.valid then e2.destroy() end
		end
	else
		if string.sub(event.cause.force.name, 1, 4) == 'crew' then --player damage only
			event.entity.health = event.entity.health + damage * 0.9
		end
	end
end




-- functions like this need to be rewritten so they play nicely with healthbars:
-- local function damage_to_enemies(event)
-- 	local memory = Memory.get_crew_memory()

-- 	if not (event.entity and event.entity.valid and event.entity.force and event.entity.force.valid) then return end

-- 	if event.entity.force.name ~= memory.enemy_force_name then return end
-- 	local evo = memory.evolution_factor

-- 	if evo and evo > 1 and event.final_health > 0 then --lethal damage needs to be unaffected, else they never die

-- 		local surplus = evo - 1

-- 		local damage_multiplier = 1/(1 + Common.surplus_evo_biter_health_fractional_modifier(surplus))

-- 		if damage_multiplier < 1 then
-- 			event.entity.health = event.entity.health + event.final_damage_amount * (1 - damage_multiplier)
-- 		end
-- 	end

-- 	-- commented out as this is done elsewhere:
-- 	-- if event.damage_type.name == 'poison' then
-- 	-- 		event.entity.health = event.entity.health + event.final_damage_amount
-- 	-- end
-- end


local function event_on_entity_damaged(event)

	local crew_id = nil
	if not crew_id and event.entity.surface.valid then crew_id = SurfacesCommon.decode_surface_name(event.entity.surface.name).crewid end
	if not crew_id and event.force.valid then crew_id = Common.get_id_from_force_name(event.force.name) end
	if not crew_id and event.entity.valid then crew_id = Common.get_id_from_force_name(event.entity.force.name) end
	Memory.set_working_id(crew_id)

	-- local memory = Memory.get_crew_memory()
	-- local difficulty = memory.difficulty

	if not event.entity.valid then return end

	damage_to_silo(event)
	damage_to_krakens(event)
	damage_to_enemyboat_spawners(event)

	if event.entity and event.entity.valid and event.entity.name and event.entity.name == 'artillery-turret' then
		damage_to_artillery(event)
	end

	protect_special_entities(event)

	if not event.entity.valid then return end -- need to call again, healthbar'd object might have been killed by script, so we shouldn't proceed now
	if not event.entity.health then return end

	if (event.entity and event.entity.valid and event.entity.name and event.entity.name == 'character') then
		damage_to_players_changes(event)
	else
		other_enemy_damage_bonuses(event)
	end

	biters_chew_stuff_faster(event)
	swamp_resist_poison(event)
	maze_walls_resistance(event)

	damage_dealt_by_players_changes(event)

	-- damage_to_enemies(event)
end




function Public.load_some_map_chunks(destination_index, fraction, force_load) --in a 'spear' from the left
	--WARNING: if force_load is true, THIS DOES NOT PLAY NICELY WITH DELAYED TASKS. log(_inspect{global_memory.working_id}) was observed to vary before and after this function.
	force_load = force_load or false

	local memory = Memory.get_crew_memory()

	local destination_data = memory.destinations[destination_index]
	if not destination_data then return end
	local surface_name = destination_data.surface_name
	if not surface_name then return end
	local surface = game.surfaces[surface_name]
	if not surface then return end

	local w, h = surface.map_gen_settings.width, surface.map_gen_settings.height
	local c = {x = 0, y = 0}
	if destination_data.static_params and destination_data.static_params.islandcenter_position then
		c = destination_data.static_params.islandcenter_position
		w = w - 2 * Math.abs(c.x)
		h = h - 2 * Math.abs(c.y)
	end
	local l = Math.max(Math.floor(w/32), Math.floor(h/32))

	local i, j, s = 0, 0, {x = 0, y = 0}
	while i < 4*l^2 and j <= fraction * w/32*h/32 do
		i = i + 1

		if s.y < 0 then
			s.y = -s.y
		elseif s.y > 0 then
			s = {x = s.x + 1, y = 1 - s.y}
		else
			s = {x = 0, y = - (s.x + 1)}
		end

		if s.x <= w/32 and s.y <= h/32/2 and s.y >= -h/32/2 then
			surface.request_to_generate_chunks({x = c.x - w/2 + 32*s.x, y = c.y + 32*s.y}, 0.1)
			j = j + 1
		end
	end
	if force_load then
		surface.force_generate_chunk_requests() --WARNING: THIS DOES NOT PLAY NICELY WITH DELAYED TASKS. log(_inspect{global_memory.working_id}) was observed to vary before and after this function.
	end
end






function Public.load_some_map_chunks_random_order(destination_index, fraction) -- The reason we might want to do this is because of algorithms like the labyrinth code, which make directionally biased patterns if you don't generate chunks in a random order
	local memory = Memory.get_crew_memory()

	local destination_data = memory.destinations[destination_index]
	if not destination_data then return end
	local surface_name = destination_data.surface_name
	if not surface_name then return end
	local surface = game.surfaces[surface_name]
	if not surface then return end

	local shuffled_chunks
	if not destination_data.dynamic_data then destination_data.dynamic_data = {} end
	if not destination_data.dynamic_data.shuffled_chunks then

		local w, h = surface.map_gen_settings.width, surface.map_gen_settings.height
		local c = {x = 0, y = 0}
		if destination_data.static_params and destination_data.static_params.islandcenter_position then
			c = destination_data.static_params.islandcenter_position
			w = w - 2 * Math.abs(c.x)
			h = h - 2 * Math.abs(c.y)
		end

		local chunks_list = {}
		for i = 0, Math.ceil(w/32 - 1), 1 do
			for j = 0, Math.ceil(h/32 - 1), 1 do
				table.insert(chunks_list, {x = c.x - w/2 + 32*i, y = c.y - h/2 + 32*j})
			end
		end

		destination_data.dynamic_data.shuffled_chunks = Math.shuffle(chunks_list)
	end
	shuffled_chunks = destination_data.dynamic_data.shuffled_chunks

	for i = 1, #shuffled_chunks do
		if i > fraction * #shuffled_chunks then
			break
		end
		surface.request_to_generate_chunks(shuffled_chunks[i], 0.2)
	end
end






-- local function event_pre_player_mined_item(event)
-- 	-- figure out which crew this is about:
-- 	-- local crew_id = nil
-- 	-- if event.player_index and game.players[event.player_index].valid then crew_id = Common.get_id_from_force_name(game.players[event.player_index].force.name) end
-- 	-- Memory.set_working_id(crew_id)
-- 	-- local memory = Memory.get_crew_memory()

-- 	-- if memory.planet[1].type.id == 11 then --rocky planet
-- 	-- 	if event.entity.name == 'rock-huge' or event.entity.name == 'rock-big' or event.entity.name == 'sand-rock-big' then
-- 	-- 		Event_functions.trap(event.entity, false)
-- 	-- 		event.entity.destroy()
-- 	-- 		Event_functions.rocky_loot(event)
-- 	-- 	end
-- 	-- end
-- end

local function event_on_player_mined_entity(event)
	if not event.player_index then return end
	local player = game.players[event.player_index]
	if not player.valid then return end
	local crew_id = Common.get_id_from_force_name(player.force.name)
	Memory.set_working_id(crew_id)
	local memory = Memory.get_crew_memory()
	local destination = Common.current_destination()

	local entity = event.entity
	if not entity.valid then return end

	if player.surface.name == 'gulag' then
		event.buffer.clear()
		return
	end

    if entity.type == 'tree' then
        if not event.buffer then return end
		local available = destination.dynamic_data.wood_remaining
		local starting = destination.static_params.starting_wood

		if available and destination.type == Surfaces.enum.ISLAND then

			if destination and destination.subtype and destination.subtype == Islands.enum.MAZE then
				if Math.random(1, 38) == 1 then
					tick_tack_trap(memory.enemy_force_name, entity.surface, entity.position)
					return
				end

				local give = {}
				if memory.classes_table and memory.classes_table[event.player_index] then
					if memory.classes_table[event.player_index] == Classes.enum.LUMBERJACK then
						give[#give + 1] = {name = 'wood', count = 1}
						Classes.lumberjack_bonus_items(give)
					-- elseif memory.classes_table[event.player_index] == Classes.enum.WOOD_LORD then
					-- 	give[#give + 1] = {name = 'wood', count = 1}
					-- 	give[#give + 1] = {name = 'iron-ore', count = 1}
					-- 	give[#give + 1] = {name = 'copper-ore', count = 1}
					-- 	give[#give + 1] = {name = 'coal', count = 1}
					-- 	if Math.random(every_nth_tree_gives_coins) == 1 then
					-- 		local a = 12
					-- 		give[#give + 1] = {name = 'coin', count = a}
					-- 		memory.playtesting_stats.coins_gained_by_trees_and_rocks = memory.playtesting_stats.coins_gained_by_trees_and_rocks + a
					-- 	end
					end
				end

				if #give > 0 then
					Common.give(player, give, entity.position)
				end
			else
				local give = {}

				local baseamount = 4
				--minimum 1 wood
				local amount = Math.clamp(1, Math.max(1, Math.ceil(available)), Math.ceil(baseamount * available/starting))

				destination.dynamic_data.wood_remaining = destination.dynamic_data.wood_remaining - amount

				if memory.classes_table and memory.classes_table[event.player_index] and memory.classes_table[event.player_index] == Classes.enum.LUMBERJACK then
					give[#give + 1] = {name = 'wood', count = amount}
					Classes.lumberjack_bonus_items(give)
				-- elseif memory.classes_table and memory.classes_table[event.player_index] and memory.classes_table[event.player_index] == Classes.enum.WOOD_LORD then
				-- 	give[#give + 1] = {name = 'wood', count = amount + 3}
				-- 	give[#give + 1] = {name = 'iron-ore', count = 1}
				-- 	give[#give + 1] = {name = 'copper-ore', count = 1}
				-- 	give[#give + 1] = {name = 'coal', count = 1}
				-- 	if Math.random(every_nth_tree_gives_coins) == 1 then
				-- 		local a = 12
				-- 		give[#give + 1] = {name = 'coin', count = a}
				-- 		memory.playtesting_stats.coins_gained_by_trees_and_rocks = memory.playtesting_stats.coins_gained_by_trees_and_rocks + a
				-- 	end
				else
					give[#give + 1] = {name = 'wood', count = amount}
					if Math.random(Balance.every_nth_tree_gives_coins) == 1 then --tuned
						local a = 5
						give[#give + 1] = {name = 'coin', count = a}
						memory.playtesting_stats.coins_gained_by_trees_and_rocks = memory.playtesting_stats.coins_gained_by_trees_and_rocks + a
					end
				end

				Common.give(player, give, entity.position)
			end
		end
		event.buffer.clear()

	elseif entity.type == 'fish' then
        if not event.buffer then return end


		if memory.classes_table and memory.classes_table[event.player_index] and memory.classes_table[event.player_index] == Classes.enum.MASTER_ANGLER then
			Common.give(player, {{name = 'raw-fish', count = Balance.base_caught_fish_amount + Balance.master_angler_fish_bonus}, {name = 'coin', count = Balance.master_angler_coin_bonus}}, entity.position)
		elseif memory.classes_table and memory.classes_table[event.player_index] and memory.classes_table[event.player_index] == Classes.enum.DREDGER then
			local to_give = {{name = 'raw-fish', count = Balance.base_caught_fish_amount + Balance.dredger_fish_bonus}}
			to_give[#to_give + 1] = Loot.dredger_loot()[1]
			Common.give(player, to_give, entity.position)
		else
			Common.give(player, {{name = 'raw-fish', count = Balance.base_caught_fish_amount}}, entity.position)
		end

		event.buffer.clear()

	elseif entity.name == 'coal' or entity.name == 'stone' or entity.name == 'copper-ore' or entity.name == 'iron-ore' then
        if not event.buffer then return end

		local give = {}

		-- prospector and chief excavator are disabled
		-- if memory.overworldx > 0 then --no coins on first map, else the optimal strategy is to handmine everything there
		-- 	if memory.classes_table and memory.classes_table[event.player_index] and memory.classes_table[event.player_index] == Classes.enum.PROSPECTOR then
		-- 		local a = 3
		-- 		give[#give + 1] = {name = 'coin', count = a}
		-- 		memory.playtesting_stats.coins_gained_by_ore = memory.playtesting_stats.coins_gained_by_ore + a
		-- 		give[#give + 1] = {name = entity.name, count = 6}
		-- 	elseif memory.classes_table and memory.classes_table[event.player_index] and memory.classes_table[event.player_index] == Classes.enum.CHIEF_EXCAVATOR then
		-- 		local a = 4
		-- 		give[#give + 1] = {name = 'coin', count = a}
		-- 		memory.playtesting_stats.coins_gained_by_ore = memory.playtesting_stats.coins_gained_by_ore + a
		-- 		give[#give + 1] = {name = entity.name, count = 12}
		-- 	else
		-- 		if memory.overworldx > 0 then
		-- 			local a = 1
		-- 			give[#give + 1] = {name = 'coin', count = a}
		-- 			memory.playtesting_stats.coins_gained_by_ore = memory.playtesting_stats.coins_gained_by_ore + a
		-- 		end
		-- 		give[#give + 1] = {name = entity.name, count = 2}
		-- 	end
		-- else
		-- 	give[#give + 1] = {name = entity.name, count = 2}
		-- end

		if memory.overworldx > 0 then --no coins on first map, else the optimal strategy is to handmine everything there
			local a = 1
			give[#give + 1] = {name = 'coin', count = a}
			memory.playtesting_stats.coins_gained_by_ore = memory.playtesting_stats.coins_gained_by_ore + a
		end

		give[#give + 1] = {name = entity.name, count = 2}

		Common.give(player, give, entity.position)
		event.buffer.clear()

	elseif entity.name == 'rock-huge' or entity.name == 'rock-big' or entity.name == 'sand-rock-big' then
        if not event.buffer then return end

		local available = destination.dynamic_data.rock_material_remaining
		-- local starting = destination.static_params.starting_rock_material

		if available and destination.type == Surfaces.enum.ISLAND then

			if destination and destination.subtype and destination.subtype == Islands.enum.MAZE then
				if Math.random(1, 35) == 1 then
					tick_tack_trap(memory.enemy_force_name, entity.surface, entity.position)
					return
				end
			else
				local c = event.buffer.get_contents()
				table.sort(c, function(a,b) return a.name < b.name end)
				local c2 = {}

				if memory.overworldx >= 0 then --used to be only later levels
					if entity.name == 'rock-huge' then
						local a = 55
						c2[#c2 + 1] = {name = 'coin', count = a, color = CoreData.colors.coin}
						memory.playtesting_stats.coins_gained_by_trees_and_rocks = memory.playtesting_stats.coins_gained_by_trees_and_rocks + a
						if Math.random(1, 35) == 1 then
							c2[#c2 + 1] = {name = 'crude-oil-barrel', count = 1, color = CoreData.colors.oil}
						end
					else
						local a = 35
						c2[#c2 + 1] = {name = 'coin', count = a, color = CoreData.colors.coin}
						memory.playtesting_stats.coins_gained_by_trees_and_rocks = memory.playtesting_stats.coins_gained_by_trees_and_rocks + a
						if Math.random(1, 35*3) == 1 then
							c2[#c2 + 1] = {name = 'crude-oil-barrel', count = 1, color = CoreData.colors.oil}
						end
					end
				end

				for k, v in pairs(c) do
					if k == 'coal' and #c2 <= 1 then --if oil, then no coal
						c2[#c2 + 1] = {name = k, count = v, color = CoreData.colors.coal}
					elseif k == 'stone' then
						c2[#c2 + 1] = {name = k, count = v, color = CoreData.colors.stone}
					end
				end
				Common.give(player, c2, entity.position)

				destination.dynamic_data.rock_material_remaining = available

				if Surfaces.get_scope(destination).break_rock then
					Surfaces.get_scope(destination).break_rock(entity.surface, entity.position, entity.name)
				end
			end
		end

		event.buffer.clear()
	end
end

local function shred_nearby_simple_entities(entity)
	local memory = Memory.get_crew_memory()
	if memory.evolution_factor < 0.25 then return end
	local simple_entities = entity.surface.find_entities_filtered({type = {'simple-entity', 'tree'}, area = {{entity.position.x - 3, entity.position.y - 3},{entity.position.x + 3, entity.position.y + 3}}})
	if #simple_entities == 0 then return end
	for i = 1, #simple_entities, 1 do
		if not simple_entities[i] then break end
		if simple_entities[i].valid then
			simple_entities[i].die(memory.enemy_force_name, simple_entities[i])
		end
	end
end

local function base_kill_rewards(event)
	local memory = Memory.get_crew_memory()
	local destination = Common.current_destination()
	local entity = event.entity
	if not (entity and entity.valid) then return end
	if not (event.force and event.force.valid) then return end
	local entity_name = entity.name

	local revenge_target
	if event.cause and event.cause.valid and event.cause.name == 'character' then
		revenge_target = event.cause
	end

	-- This gives enemy loot straight to combat robot owner's inventory instead of dropping it on the ground
	if event.cause and (event.cause.name == 'defender' or event.cause.name == 'distractor' or event.cause.name == 'destroyer') then
		if event.cause.combat_robot_owner and event.cause.combat_robot_owner.valid then
			revenge_target = event.cause.combat_robot_owner
		end
	end

	local class
	if revenge_target and
		revenge_target.valid and
		revenge_target.player and
		revenge_target.player.index and
		memory.classes_table and
		memory.classes_table[revenge_target.player.index]
	then
		class = memory.classes_table[revenge_target.player.index]
	end

	local class_is_chief = (class and class == Classes.enum.CHIEF) and true or false


	-- no worm loot in the maze except for chiefs:
	local maze = (destination.subtype and destination.subtype == Islands.enum.MAZE)
	if maze and not (entity_name == 'biter-spawner' or entity_name == 'spitter-spawner') and not (class_is_chief) then return end

	local iron_amount
	local coin_amount
	local fish_amount

	if entity_name == 'small-worm-turret' then
		iron_amount = 5
		coin_amount = 50
		fish_amount = 1 * Balance.chief_fish_received_for_worm_kill
		memory.playtesting_stats.coins_gained_by_nests_and_worms = memory.playtesting_stats.coins_gained_by_nests_and_worms + coin_amount
	elseif entity_name == 'medium-worm-turret' then
		iron_amount = 20
		coin_amount = 90
		fish_amount = 1 * Balance.chief_fish_received_for_worm_kill
		memory.playtesting_stats.coins_gained_by_nests_and_worms = memory.playtesting_stats.coins_gained_by_nests_and_worms + coin_amount
	elseif entity_name == 'biter-spawner' or entity_name == 'spitter-spawner' then
		iron_amount = 30
		coin_amount = 100
		fish_amount = 0 -- cooking spawners don't really fit class fantasy imo
		memory.playtesting_stats.coins_gained_by_nests_and_worms = memory.playtesting_stats.coins_gained_by_nests_and_worms + coin_amount
	elseif entity_name == 'big-worm-turret' then
		iron_amount = 30
		coin_amount = 140
		fish_amount = 2 * Balance.chief_fish_received_for_worm_kill
		memory.playtesting_stats.coins_gained_by_nests_and_worms = memory.playtesting_stats.coins_gained_by_nests_and_worms + coin_amount
	elseif entity_name == 'behemoth-worm-turret' then
		iron_amount = 50
		coin_amount = 260
		fish_amount = 3 * Balance.chief_fish_received_for_worm_kill
		memory.playtesting_stats.coins_gained_by_nests_and_worms = memory.playtesting_stats.coins_gained_by_nests_and_worms + coin_amount
	elseif memory.overworldx > 0 then --avoid coin farming on first island
		if entity_name == 'small-biter' then
			-- if Math.random(2) == 1 then
			-- 	coin_amount = 1
			-- end
			coin_amount = 1
			fish_amount = 1 * Balance.chief_fish_received_for_biter_kill
			memory.playtesting_stats.coins_gained_by_biters = memory.playtesting_stats.coins_gained_by_biters + coin_amount
		elseif entity_name == 'small-spitter' then
			coin_amount = 1
			fish_amount = 1 * Balance.chief_fish_received_for_biter_kill
			memory.playtesting_stats.coins_gained_by_biters = memory.playtesting_stats.coins_gained_by_biters + coin_amount
		elseif entity_name == 'medium-biter' then
			coin_amount = 2
			fish_amount = 1 * Balance.chief_fish_received_for_biter_kill
			memory.playtesting_stats.coins_gained_by_biters = memory.playtesting_stats.coins_gained_by_biters + coin_amount
		elseif entity_name == 'medium-spitter' then
			coin_amount = 2
			fish_amount = 1 * Balance.chief_fish_received_for_biter_kill
			memory.playtesting_stats.coins_gained_by_biters = memory.playtesting_stats.coins_gained_by_biters + coin_amount
		elseif entity_name == 'big-biter' then
			coin_amount = 4
			fish_amount = 2 * Balance.chief_fish_received_for_biter_kill
			memory.playtesting_stats.coins_gained_by_biters = memory.playtesting_stats.coins_gained_by_biters + coin_amount
		elseif entity_name == 'big-spitter' then
			coin_amount = 4
			fish_amount = 2 * Balance.chief_fish_received_for_biter_kill
			memory.playtesting_stats.coins_gained_by_biters = memory.playtesting_stats.coins_gained_by_biters + coin_amount
		elseif entity_name == 'behemoth-biter' then
			coin_amount = 8
			fish_amount = 3 * Balance.chief_fish_received_for_biter_kill
			memory.playtesting_stats.coins_gained_by_biters = memory.playtesting_stats.coins_gained_by_biters + coin_amount
		elseif entity_name == 'behemoth-spitter' then
			coin_amount = 8
			fish_amount = 3 * Balance.chief_fish_received_for_biter_kill
			memory.playtesting_stats.coins_gained_by_biters = memory.playtesting_stats.coins_gained_by_biters + coin_amount
		end
	end

	local stack = {}

	if iron_amount and iron_amount > 0 then
		stack[#stack + 1] = {name = 'iron-plate', count = iron_amount}
	end

	if coin_amount and coin_amount > 0 then
		stack[#stack + 1] = {name = 'coin', count = coin_amount}
	end

	if class_is_chief and fish_amount and fish_amount > 0 then
		stack[#stack + 1] = {name = 'raw-fish', count = fish_amount}
	end

	local short_form = (not iron_amount) and true or false

	if revenge_target then
		Common.give(revenge_target.player, stack, revenge_target.player.position, short_form, entity.surface, entity.position)
	else
		if event.cause and event.cause.valid and event.cause.position then
			Common.give(nil, stack, event.cause.position, short_form, entity.surface, entity.position)
		else
			Common.give(nil, stack, entity.position, short_form, entity.surface)
		end
	end

	if (entity_name == 'biter-spawner' or entity_name == 'spitter-spawner') and entity.position and entity.surface and entity.surface.valid then
		--check if its a boat biter entity
		local boat_spawner = false
		if memory.enemyboats then
			for i = 1, #memory.enemyboats do
				local eb = memory.enemyboats[i]
				if eb.spawner and eb.spawner.valid and event.entity == eb.spawner then
					boat_spawner = true
					break
				end
			end
		end
		if boat_spawner then
			Ai.revenge_group(entity.surface, entity.position, revenge_target, 'biter', 0.3, 2)
		elseif entity_name == 'biter-spawner' then
			Ai.revenge_group(entity.surface, entity.position, revenge_target, 'biter')
		else
			Ai.revenge_group(entity.surface, entity.position, revenge_target, 'spitter')
		end
	end
end

local function spawner_died(event)
	local memory = Memory.get_crew_memory()
	local destination = Common.current_destination()

	if (destination and destination.type and destination.type == Surfaces.enum.ISLAND) then

		local not_boat = true
		if memory.enemyboats and #memory.enemyboats > 0 then
			for i = 1, #memory.enemyboats do
				local eb = memory.enemyboats[i]
				if eb.spawner and eb.spawner.valid and event.entity and event.entity.valid and event.entity == eb.spawner then
					not_boat = false
					break
				end
			end
		end

		if not_boat then
			local extra_evo = Balance.evolution_per_nest_kill()
			Common.increment_evo(extra_evo)

			if destination.dynamic_data then
				destination.dynamic_data.evolution_accrued_nests = destination.dynamic_data.evolution_accrued_nests + extra_evo
			end
		end
	end
end

local function event_on_entity_died(event)
	--== MODDING NOTE: event.cause is not always provided.
	local entity = event.entity
	if not (entity and entity.valid) then return end
	if not (event.force and event.force.valid) then return end

	local crew_id = Common.get_id_from_force_name(entity.force.name)
	Memory.set_working_id(crew_id)
	local memory = Memory.get_crew_memory()
	if not Common.is_id_valid(memory.id) then return end

	base_kill_rewards(event)

	if memory.scripted_biters and entity.type == 'unit' and entity.force.name == memory.enemy_force_name then
		memory.scripted_biters[entity.unit_number] = nil
	end

	if entity.force.index == 3 or entity.force.name == 'environment' then
		if event.cause and event.cause.valid and event.cause.force.name == memory.enemy_force_name then
			shred_nearby_simple_entities(entity)
		end
	end

	if event.entity and event.entity.valid and event.entity.force and event.entity.force.name == memory.force_name then
		if memory.boat and memory.boat.cannonscount and entity.name and entity.name == 'artillery-turret' then
			memory.boat.cannonscount = memory.boat.cannonscount - 1
			-- if memory.boat.cannonscount <= 0 then
			-- 	Crew.try_lose()
			-- end
			Crew.try_lose({'pirates.loss_cannon_destroyed'})
		end
	end

	if entity and entity.valid and entity.force and entity.force.name == memory.enemy_force_name then
		if (entity.name == 'biter-spawner' or entity.name == 'spitter-spawner') then
			spawner_died(event)
			-- I think the only reason krakens don't trigger this right now is that they are destroyed rather than .die()
		else
			local destination = Common.current_destination()
			if not (destination and destination.dynamic_data and destination.dynamic_data.quest_type and (not destination.dynamic_data.quest_complete)) then return end
			if destination.dynamic_data.quest_type == Quest.enum.WORMS and entity.type == 'turret' then
				destination.dynamic_data.quest_progress = destination.dynamic_data.quest_progress + 1
				Quest.try_resolve_quest()
			end
		end
	end
end

-- function Public.research_apply_buffs(event)
-- 	local memory = Memory.get_crew_memory()
-- 	local force = memory.force

-- 	if Balance.research_buffs[event.research.name] then
-- 		local tech = Balance.research_buffs[event.research.name]
-- 		-- @FIXME: This code is from another scenario but doesn't work
-- 		-- for k, v in pairs(tech) do
-- 		-- 	force[k] = force[k] + v
-- 		-- end
-- 	end
-- end


function Public.apply_flamer_nerfs()
	local memory = Memory.get_crew_memory()
	-- local difficulty = memory.difficulty
	local force = memory.force

	-- This code matches the vanilla game. Written by Hanakocz I think.
	local flame_researches = {
		[1] = {name = 'refined-flammables-1', bonus = 0.2},
		[2] = {name = 'refined-flammables-2', bonus = 0.2},
		[3] = {name = 'refined-flammables-3', bonus = 0.2},
		[4] = {name = 'refined-flammables-4', bonus = 0.3},
		[5] = {name = 'refined-flammables-5', bonus = 0.3},
		[6] = {name = 'refined-flammables-6', bonus = 0.4},
		[7] = {name = 'refined-flammables-7', bonus = 0.2}
	}
	local flamer_power = 0
	for i = 1, 6, 1 do
		if force.technologies[flame_researches[i].name].researched then
			flamer_power = flamer_power + flame_researches[i].bonus
		end
	end
	flamer_power = flamer_power + (force.technologies[flame_researches[7].name].level - 7) * 0.2

	force.set_ammo_damage_modifier('flamethrower', flamer_power * Balance.flamers_tech_multipliers() + Balance.flamers_base_nerf())
	force.set_turret_attack_modifier('flamethrower-turret', flamer_power * Balance.flamers_tech_multipliers() + Balance.flamers_base_nerf())
end

local function event_on_research_finished(event)
	-- figure out which crew this is about:
	local research = event.research
	local p_force = research.force
	local crew_id = Common.get_id_from_force_name(p_force.name)
	Memory.set_working_id(crew_id)
	local memory = Memory.get_crew_memory()

	-- using a localised string means we have to write this out (recall that "" signals concatenation)
	memory.force.print({"", '>> ', {'pirates.research_notification', event.research.localised_name}}, CoreData.colors.notify_force_light)

	Public.apply_flamer_nerfs()
	-- Public.research_apply_buffs(event) -- this is broken right now

	for _, e in ipairs(research.effects) do
	local t = e.type
		if t == 'ammo-damage' then
			local category = e.ammo_category
			local factor = Balance.player_ammo_damage_modifiers()[category]

			if factor then
				local current_m = p_force.get_ammo_damage_modifier(category)
				local m = e.modifier
				p_force.set_ammo_damage_modifier(category, current_m + factor * m)
			end
		elseif t == 'gun-speed' then
			local category = e.ammo_category
			local factor = Balance.player_gun_speed_modifiers()[category]

			if factor then
				local current_m = p_force.get_gun_speed_modifier(category)
				local m = e.modifier
				p_force.set_gun_speed_modifier(category, current_m + factor * m)
			end
		elseif t == 'turret-attack' then
			local category = e.ammo_category
			local factor = Balance.player_turret_attack_modifiers()[category]

			if factor then
				local current_m = p_force.get_turret_attack_modifier(category)
				local m = e.modifier
				p_force.set_turret_attack_modifier(category, current_m + factor * m)
			end
		end
	end

	-- even after research, force disable these:
	-- p_force.recipes['underground-belt'].enabled = false
	-- p_force.recipes['fast-underground-belt'].enabled = false
	-- p_force.recipes['express-underground-belt'].enabled = false
	p_force.recipes['pistol'].enabled = false
	p_force.recipes['centrifuge'].enabled = false
	-- p_force.recipes['flamethrower-turret'].enabled = false
	p_force.recipes['locomotive'].enabled = false
	p_force.recipes['car'].enabled = false
	p_force.recipes['cargo-wagon'].enabled = false
	p_force.recipes['slowdown-capsule'].enabled = false
	p_force.recipes['nuclear-fuel'].enabled = false
	-- p_force.recipes['rail'].enabled = false
	p_force.recipes['speed-module'].enabled = false
	p_force.recipes['tank'].enabled = false
	p_force.recipes['cannon-shell'].enabled = false
	p_force.recipes['explosive-cannon-shell'].enabled = false
	-- and since we can't build tanks anyway, let's disable this for later:
	p_force.recipes['uranium-cannon-shell'].enabled = false
	p_force.recipes['explosive-uranium-cannon-shell'].enabled = false
end

local function event_on_player_joined_game(event)
	local global_memory = Memory.get_global_memory()

	local player = game.players[event.player_index]

	--figure out if we should drop them back into a crew:

	if (not Server.get_current_time()) then -- don't run this on servers because I'd need to negotiate that with the rest of Comfy
		player.print({'pirates.thesixthroc_support_toast'}, {r=1, g=0.4, b=0.9})
	end

	if _DEBUG then
		game.print('Debug mode on. Use /go to get started, /1 /4 /32 etc to change game speed.')
	end

	local crew_to_put_back_in = nil
	for _, memory in pairs(global_memory.crew_memories) do
		if Common.is_id_valid(memory.id) and memory.crewstatus and memory.crewstatus == Crew.enum.ADVENTURING and memory.temporarily_logged_off_characters[player.index] then
			crew_to_put_back_in = memory.id
			break
		end
	end

	if crew_to_put_back_in then
		Crew.join_crew(player, crew_to_put_back_in, true)

		local memory = global_memory.crew_memories[crew_to_put_back_in]
		if #memory.crewplayerindices <= 1 then
			memory.playerindex_captain = player.index
		end

		if _DEBUG then log('putting player back in their old crew') end
	else
		if player.character and player.character.valid then
			player.character.destroy()
		end
		player.set_controller({type=defines.controllers.god})
		player.create_character()

		local spawnpoint = Common.lobby_spawnpoint
		local surface = game.surfaces[CoreData.lobby_surface_name]

		player.teleport(surface.find_non_colliding_position('character', spawnpoint, 32, 0.5) or spawnpoint, surface)
		Roles.add_player_to_permission_group(player)

		if not player.name then return end

		-- start at Common.starting_island_spawnpoint or not?

		if game.tick == 0 then
			Common.ensure_chunks_at(surface, spawnpoint, 5)
		end

		-- Auto-join the oldest crew:
		local ages = {}
		for _, memory in pairs(global_memory.crew_memories) do
			if Common.is_id_valid(memory.id)
				and memory.crewstatus
				and memory.crewstatus == Crew.enum.ADVENTURING
				and memory.capacity
				and memory.crewplayerindices
				and #memory.crewplayerindices < memory.capacity
				and (not (memory.tempbanned_from_joining_data
					and memory.tempbanned_from_joining_data[player.index]
					and game.tick < memory.tempbanned_from_joining_data[player.index] + Common.ban_from_rejoining_crew_ticks)) then
				ages[#ages+1] = {id = memory.id, age = memory.age, large = (memory.capacity >= Common.minimum_run_capacity_to_enforce_space_for)}
			end
		end
		table.sort(
			ages,
			function(a, b) --true if a should be to the left of b
				if a.large and (not b.large) then
					return true
				elseif (not a.large) and b.large then
					return false
				else
					return a.age > b.age
				end
			end
		)
		if ages[1] then
			Crew.join_crew(player, ages[1].id)

			local memory = global_memory.crew_memories[ages[1].id]
			if #memory.crewplayerindices <= 1 then
				memory.playerindex_captain = player.index
			end

			if ages[2] then
				if ages[1].large and (not ages[#ages].large) then
					Common.notify_player_announce(player, {'pirates.goto_oldest_crew_with_large_capacity'})
				else
					Common.notify_player_announce(player, {'pirates.goto_oldest_crew'})
				end
			end
		end
	end

	if not _DEBUG then
		Gui.info.toggle_window(player)
	end

	global_memory.last_players_health[event.player_index] = player.character.health

	-- 	player.teleport(surface.find_non_colliding_position('character', spawnpoint, 32, 0.5), surface)
	-- 	-- for item, amount in pairs(Balance.starting_items_player) do
	-- 	-- 	player.insert({name = item, count = amount})
	-- 	-- end
	-- end


	-- if player.surface.name ~= Common.current_destination().surface_name and string.sub(player.surface.name, 1, 10) ~= 'crowsnest-' then -- add other adventuring surfaces here
	-- 	player.character = nil
	-- 	player.set_controller({type=defines.controllers.god})
	-- 	player.create_character()
	-- 	player.teleport(surface.find_non_colliding_position('character', memory.force.get_spawn_position(surface), 32, 0.5), surface)
	-- 	for item, amount in pairs(starting_items_player) do
	-- 		player.insert({name = item, count = amount})
	-- 	end
	-- end

	-- local tile = surface.get_tile(player.position)
	-- if tile.valid then
	-- 	if tile.name == 'out-of-map' then
	-- 		player.teleport(surface.find_non_colliding_position('character', memory.force.get_spawn_position(surface), 32, 0.5), surface)
	-- 	end
	-- end
end


local function event_on_pre_player_left_game(event)
	local player = game.players[event.player_index]

	local global_memory = Memory.get_global_memory()
	-- figure out which crew this is about:
	local crew_id = Common.get_id_from_force_name(player.force.name)

	for k, proposal in pairs(global_memory.crewproposals) do
		for k2, i in pairs(proposal.endorserindices) do
			if i == event.player_index then
				proposal.endorserindices[k2] = nil
				if #proposal.endorserindices == 0 then
					proposal = nil
					global_memory.crewproposals[k] = nil
				end
			end
		end
	end

	if not crew_id then
		if player.character and player.character.valid then
			player.character.destroy()
		end
		return -- nothing more needed
	end

	Memory.set_working_id(crew_id)
	local memory = Memory.get_crew_memory()

	if player.controller_type == defines.controllers.editor then player.toggle_map_editor() end

	for _, id in pairs(memory.crewplayerindices) do
		if player.index == id then
			Crew.leave_crew(player, false, true)
			break
		end
	end
	for _, id in pairs(memory.spectatorplayerindices) do
		if player.index == id then
			Crew.leave_spectators(player, true)
			break
		end
	end

	global_memory.last_players_health[event.player_index] = nil
end


-- local function event_on_player_left_game(event)
-- 	-- n/a
-- end

-- local function on_player_changed_position(event)
-- 	local memory = Chrono_table.get_table()
-- 	if memory.planet[1].type.id == 14 then --lava planet
-- 		Event_functions.lava_planet(event)
-- 	end
-- end


local function on_player_changed_surface(event)
    local player = game.players[event.player_index]
    local jailed = Jailed.get_jailed_table()

    if player.name and jailed and jailed[player.name] then
		-- not quite sure this is necessary, but let's send their items to the crew:
		Common.send_important_items_from_player_to_crew(player, true)
        return
    end

	-- prevent connecting power between surfaces: (for the ship we do this automatically, but no need to let players do it in the general case:)
	if not player.is_cursor_empty() then
		if player.cursor_stack and player.cursor_stack.valid_for_read then
			local blacklisted = {
				['small-electric-pole'] = true,
				['medium-electric-pole'] = true,
				['big-electric-pole'] = true,
				['substation'] = true,
			}
			if blacklisted[player.cursor_stack.name] then
				player.get_main_inventory().insert(player.cursor_stack)
				player.cursor_stack.clear()
			end
		end
		if player.cursor_ghost then
			player.cursor_ghost = nil
		end
	end

    Roles.update_privileges(player)
end

function Public.player_entered_vehicle(player, vehicle)

	if not vehicle then log('no vehicle') return end
	-- if not vehicle.name then log('no vehicle') return end
	-- if not vehicle.valid then log('vehicle invalid') return end

	local player_relative_pos = {x = player.position.x - vehicle.position.x, y = player.position.y - vehicle.position.y}

	local memory = Memory.get_crew_memory()

	local player_boat_relative_pos
	if memory and memory.boat and memory.boat.position then
		player_boat_relative_pos = {x = player.position.x - memory.boat.position.x, y = player.position.y - memory.boat.position.y}
	else
		player_boat_relative_pos = {x = player.position.x - vehicle.position.x, y = player.position.y - vehicle.position.y}
	end

	local surfacedata = Surfaces.SurfacesCommon.decode_surface_name(player.surface.name)

	if vehicle.name == 'car' then
		-- a way to make simple cars work
		if vehicle.minable then
			return
		end

		if surfacedata.type ~= Surfaces.enum.CROWSNEST and surfacedata.type ~= Surfaces.enum.CABIN and surfacedata.type ~= Surfaces.enum.LOBBY then
			if player_boat_relative_pos.x < -47 then
				Surfaces.player_goto_cabin(player, {x = 2, y = player_relative_pos.y})
			else
				Surfaces.player_goto_crows_nest(player, player_relative_pos)
			end
			player.play_sound{path = "utility/picked_up_item"}
		elseif surfacedata.type == Surfaces.enum.CROWSNEST then
			Surfaces.player_exit_crows_nest(player, player_relative_pos)
			player.play_sound{path = "utility/picked_up_item"}
		elseif surfacedata.type == Surfaces.enum.CABIN then
			Surfaces.player_exit_cabin(player, player_relative_pos)
			player.play_sound{path = "utility/picked_up_item"}
		end
		vehicle.color = {148, 106, 52}

	elseif vehicle.name == 'locomotive' then

		if surfacedata.type ~= Surfaces.enum.HOLD and surfacedata.type ~= Surfaces.enum.LOBBY and Math.abs(player_boat_relative_pos.y) < 8 then --<8 in order not to enter holds of boats you haven't bought yet
			Surfaces.player_goto_hold(player, player_relative_pos, 1)
			player.play_sound{path = "utility/picked_up_item"}
		elseif surfacedata.type == Surfaces.enum.HOLD then
			local current_hold_index = surfacedata.destination_index
			if current_hold_index >= memory.hold_surface_count then
				Surfaces.player_exit_hold(player, player_relative_pos)
			else
				Surfaces.player_goto_hold(player, player_relative_pos, current_hold_index + 1)
			end
			player.play_sound{path = "utility/picked_up_item"}
		end
	end

	player.driving = false
end

local function event_on_player_driving_changed_state(event)
	local player = game.players[event.player_index]
	local vehicle = event.entity

	local crew_id = Common.get_id_from_force_name(player.force.name)
	Memory.set_working_id(crew_id)

	Public.player_entered_vehicle(player, vehicle)
end


function Public.event_on_chunk_generated(event)

	local surface = event.surface
	if not surface then return end
	if not surface.valid then return end
	if surface.name == 'nauvis' or surface.name == 'piratedev1' or surface.name == 'gulag' then return end

	local seed = surface.map_gen_settings.seed
	local name = surface.name

	local surface_name_decoded = Surfaces.SurfacesCommon.decode_surface_name(name)
	local type = surface_name_decoded.type
	-- local subtype = surface_name_decoded.subtype
	local chunk_destination_index = surface_name_decoded.destination_index
	local crewid = surface_name_decoded.crewid

	Memory.set_working_id(crewid)

	local chunk_left_top = event.area.left_top
	local width, height = nil, nil
	local terraingen_coordinates_offset = {x = 0, y = 0}
	local static_params = {}
	local other_map_generation_data = {}
	local scope

	local memory = Memory.get_crew_memory()
	if type == Surfaces.enum.ISLAND and memory.destinations and memory.destinations[chunk_destination_index] then
		local destination = memory.destinations[chunk_destination_index]
		scope = Surfaces.get_scope(destination)
		static_params = destination.static_params
		other_map_generation_data = destination.dynamic_data.other_map_generation_data or {}
		terraingen_coordinates_offset = static_params.terraingen_coordinates_offset
		width = static_params.width
		height = static_params.height
	end

	if not scope then
		scope = Surfaces[type]
	end

	local noise_params, terrain_fn, chunk_structures_fn
	if scope then
		if scope.Data then
			if scope.Data.noiseparams then
				noise_params = scope.Data.noiseparams
			end
			if (not width) and scope.Data.width then
				width = scope.Data.width
			end
			if (not height) and scope.Data.height then
				height = scope.Data.height
			end
		end
		if scope.terrain then terrain_fn = scope.terrain end
		if scope.chunk_structures then chunk_structures_fn = scope.chunk_structures end
	end

	if not width then
		width = 999
		log('no surface width? ' .. type)
	end
	if not height then height = 999 end

	local tiles, entities, decoratives, specials = {}, {}, {}, {}
	-- local noise_generator = nil
	local noise_generator = Utils.noise_generator(noise_params, seed)

	for y = 0.5, 31.5, 1 do
		for x = 0.5, 31.5, 1 do
			local p = {x = chunk_left_top.x + x, y = chunk_left_top.y + y}

			if (p.x >= -width/2 and p.y >=-height/2 and p.x <= width/2 and p.y <= height/2) then

				terrain_fn{
					p = Utils.psum{p, {1, terraingen_coordinates_offset}},
					true_p = p,
					true_left_top = chunk_left_top,
					left_top = Utils.psum{chunk_left_top, {1, terraingen_coordinates_offset}},
					noise_generator = noise_generator,
					static_params = static_params,
					tiles = tiles,
					entities = entities,
					decoratives = decoratives,
					specials = specials,
					seed = seed,
					other_map_generation_data = other_map_generation_data,
					iconized_generation = false
				}
			else
				tiles[#tiles + 1] = {name = 'out-of-map', position = Utils.psum{p, {1, terraingen_coordinates_offset}}}
			end
		end
	end

	chunk_structures_fn{
		true_left_top = chunk_left_top,
		left_top = Utils.psum{chunk_left_top, {1, terraingen_coordinates_offset}},
		noise_generator = noise_generator,
		static_params = static_params,
		specials = specials,
		entities = entities,
		seed = seed,
		other_map_generation_data = other_map_generation_data,
		biter_base_density_scale = Balance.biter_base_density_scale()
	}

	local tiles_corrected = {}
	for i = 1, #tiles do
		local t = tiles[i]
		t.position = Utils.psum{t.position, {-1, terraingen_coordinates_offset}}
		tiles_corrected[i] = t
	end
	local correct_tiles = true --tile borders etc

	if #tiles_corrected > 0 then surface.set_tiles(tiles_corrected, correct_tiles) end



	local destination = Common.current_destination()

	if destination.dynamic_data then

		if not destination.dynamic_data.structures_waiting_to_be_placed then
			destination.dynamic_data.structures_waiting_to_be_placed = {}
		end

		-- to avoid having chests on water, add a landfill tile underneath them
		local landfill_tiles = {}

		for _, special in pairs(specials) do

			-- recoordinatize:
			special.position = Utils.psum{special.position, {-1, terraingen_coordinates_offset}}

			if special.name and special.name == 'buried-treasure' then
				if destination.dynamic_data.buried_treasure and crewid ~= 0 then
					destination.dynamic_data.buried_treasure[#destination.dynamic_data.buried_treasure + 1] = {treasure = Loot.buried_treasure_loot(), position = special.position}
				end
			elseif special.name and special.name == 'chest' then
				local e = surface.create_entity{name = 'wooden-chest', position = special.position, force = memory.ancient_friendly_force_name}
				if e and e.valid then
					e.minable = false
					e.rotatable = false
					e.destructible = false

					local water_tiles = surface.find_tiles_filtered{position = special.position, radius = 0.1, collision_mask = "water-tile"}

					if water_tiles then
						for _, t in pairs(water_tiles) do
							landfill_tiles[#landfill_tiles + 1] = {name = "landfill", position = t.position}
						end
					end

					local inv = e.get_inventory(defines.inventory.chest)
					local loot = Loot.wooden_chest_loot()
					for i = 1, #loot do
						local l = loot[i]
						inv.insert(l)
					end
				end
			end

			if special.components then
				destination.dynamic_data.structures_waiting_to_be_placed[#destination.dynamic_data.structures_waiting_to_be_placed + 1] = {data = special, tick = game.tick}
			end
		end

		if #landfill_tiles > 0 then
			surface.set_tiles(landfill_tiles, true, false, false)
		end
	end

	for i = 1, #entities do
		local e = entities[i]
		e.position = Utils.psum{e.position, {-1, terraingen_coordinates_offset}}
		local e2 = e
		-- e2.build_check_type = defines.build_check_type.ghost_revive
		-- log(_inspect(e2))
		if surface.can_place_entity(e2) then
			local ee = surface.create_entity(e)
			if e.indestructible then
				ee.destructible = false
			end
		end
	end

	local decoratives_corrected = {}
	for i = 1, #decoratives do
		local d = decoratives[i]
		d.position = Utils.psum{d.position, {-1, terraingen_coordinates_offset}}
		decoratives_corrected[i] = d
	end
	if #decoratives_corrected > 0 then surface.create_decoratives{decoratives = decoratives_corrected} end
end

local function event_on_rocket_launched(event)
	-- figure out which crew this is about:
	local crew_id = Common.get_id_from_force_name(event.rocket.force.name)
	Memory.set_working_id(crew_id)
	local memory = Memory.get_crew_memory()
	local destination = Common.current_destination()

	destination.dynamic_data.rocketlaunched = true
	if memory.stored_fuel and destination.dynamic_data and destination.dynamic_data.rocketcoalreward then
		memory.stored_fuel = memory.stored_fuel + destination.dynamic_data.rocketcoalreward
		local a = Balance.rocket_launch_coin_reward
		Common.give_items_to_crew({{name = 'coin', count = a}})
		memory.playtesting_stats.coins_gained_by_rocket_launches = memory.playtesting_stats.coins_gained_by_rocket_launches + a
	end

	local force = memory.force
	local message = {'pirates.granted_2', {'pirates.granted_rocket_launch'}, Math.floor(Balance.rocket_launch_coin_reward/100)/10 .. 'k [item=coin]', Math.floor(destination.dynamic_data.rocketcoalreward/100)/10 .. 'k [item=coal]'}
	Common.notify_force_light(force,message)

	if destination.dynamic_data.quest_type == Quest.enum.TIME and (not destination.dynamic_data.quest_complete) then
		destination.dynamic_data.quest_progressneeded = 1
		Quest.try_resolve_quest()
	end

	if destination.dynamic_data.quest_type == Quest.enum.NODAMAGE and (not destination.dynamic_data.quest_complete) then
		destination.dynamic_data.quest_progress = destination.dynamic_data.rocketsilohp
		Quest.try_resolve_quest()
	end

	if destination.dynamic_data.rocketsilos then
		for i = 1, #destination.dynamic_data.rocketsilos do
			local s = destination.dynamic_data.rocketsilos[i]
			if s and s.valid then
				s.die()
			end
		end
		destination.dynamic_data.rocketsilos = nil
	end
end



local function event_on_built_entity(event)
    local entity = event.created_entity
	if not entity then return end
	if not entity.valid then return end

	if not event.player_index then return end
	if not game.players[event.player_index] then return end
	if not game.players[event.player_index].valid then return end

	local player = game.players[event.player_index]
	local crew_id = Common.get_id_from_force_name(player.force.name)
	Memory.set_working_id(crew_id)
	local memory = Memory.get_crew_memory()


    if entity.type == 'entity-ghost' and entity.force and entity.force.valid then
        entity.time_to_live = entity.force.ghost_time_to_live
	end

	if memory.boat and memory.boat.surface_name and player.surface == game.surfaces[memory.boat.surface_name] and entity.valid and entity.position then
		if (entity.type and (entity.type == 'underground-belt')) or (entity.name == 'entity-ghost' and entity.ghost_type and (entity.ghost_type == 'underground-belt')) then
			if Boats.on_boat(memory.boat, entity.position) then
				-- if (entity.type and (entity.type == 'underground-belt' or entity.type == 'pipe-to-ground')) or (entity.name == 'entity-ghost' and entity.ghost_type and (entity.ghost_type == 'underground-belt' or entity.ghost_type == 'pipe-to-ground')) then
					if not (entity.name and entity.name == 'entity-ghost') then
						player.insert{name = entity.name, count = 1}
					end
					entity.destroy()
					Common.notify_player_error(player, {'pirates.error_build_undergrounds_on_boat'})
					return
			end
		end
	end


	-- hanas code for selective spidertrons:
    -- local objective = Chrono_table.get_table()
    -- if entity.name == 'spidertron' then
    --     if objective.world.id ~= 7 or entity.surface.name == 'cargo_wagon' then
    --         entity.destroy()
    --         local player = game.players[event.player_index]
    --         Alert.alert_player_warning(player, 8, {'chronosphere.spidertron_not_allowed'})
    --         player.insert({name = 'spidertron', count = 1})
    --     end
    -- end
end

local function event_on_console_chat(event)
    if not (event.message and event.player_index and game.players[event.player_index]) then return end

	local global_memory = Memory.get_global_memory()

    local player = game.players[event.player_index]
    local tag = player.tag
    if not tag then
        tag = ''
    end
    local color = player.chat_color

    -- if global.tournament_mode then
    --     return
    -- end

	local crew_id = Common.get_id_from_force_name(player.force.name)
	Memory.set_working_id(crew_id)
	local memory = Memory.get_crew_memory()

    if player.force.name == 'player' then
		local other_force_indices = global_memory.crew_active_ids

		for _, index in pairs(other_force_indices) do
			local recipient_force_name = global_memory.crew_memories[index].force_name
			game.forces[recipient_force_name].print(player.name .. tag .. ' [LOBBY]: ' .. event.message, color)
		end
	else
		game.forces.player.print(player.name .. tag .. ' [' .. memory.name .. ']: ' .. event.message, color)
	end
end

local function event_on_market_item_purchased(event)
	Shop.event_on_market_item_purchased(event)
end



local remove_boost_movement_speed_on_respawn =
    Token.register(
    function(data)
        local player = data.player
		local crew_id = data.crew_id
        if not (player and player.valid) then
            return
        end

		-- their color was strobing, so now reset it to their chat color:
		player.color = player.chat_color

		Memory.set_working_id(crew_id)
		local memory = Memory.get_crew_memory()
		if not Common.is_id_valid(memory.id) then return end --check if crew disbanded
		if memory.game_lost then return end
		memory.speed_boost_characters[player.index] = nil

		Common.notify_player_expected(player, {'pirates.respawn_speed_bonus_removed'})
    end
)


local boost_movement_speed_on_respawn =
    Token.register(
    function(data)
        local player = data.player
		local crew_id = data.crew_id
        if not player or not player.valid then
            return
        end

		Memory.set_working_id(crew_id)
		local memory = Memory.get_crew_memory()
		if not Common.is_id_valid(memory.id) then return end --check if crew disbanded
		if memory.game_lost then return end
		memory.speed_boost_characters[player.index] = true

        Task.set_timeout_in_ticks(1050, remove_boost_movement_speed_on_respawn, {player = player, crew_id = crew_id})
		Common.notify_player_expected(player, {'pirates.respawn_speed_bonus_applied'})
    end
)


local function event_on_player_respawned(event)
	local player = game.players[event.player_index]

	local crew_id = Common.get_id_from_force_name(player.force.name)

	Memory.set_working_id(crew_id)
	local memory = Memory.get_crew_memory()
	local boat = memory.boat

	if player.surface == game.surfaces[Common.current_destination().surface_name] then
		if Boats.is_boat_at_sea() then
			-- assuming sea is always default:
			local seasurface = game.surfaces[memory.sea_name]
			player.teleport(memory.spawnpoint, seasurface)
		elseif boat and (boat.state == Boats.enum_state.LANDED or boat.state == Boats.enum_state.RETREATING) then

			if player.character and player.character.valid then
				Task.set_timeout_in_ticks(360, boost_movement_speed_on_respawn, {player = player, crew_id = crew_id})

				local global_memory = Memory.get_global_memory()
				global_memory.last_players_health[event.player_index] = player.character.health
			end
		end
	end
end


local event = require 'utils.event'
event.add(defines.events.on_built_entity, event_on_built_entity)
event.add(defines.events.on_entity_damaged, event_on_entity_damaged)
event.add(defines.events.on_entity_died, event_on_entity_died)
-- event.add(defines.events.on_player_repaired_entity, event_on_player_repaired_entity)
event.add(defines.events.on_player_joined_game, event_on_player_joined_game)
event.add(defines.events.on_pre_player_left_game, event_on_pre_player_left_game)
-- event.add(defines.events.on_player_left_game, event_on_player_left_game)
-- event.add(defines.events.on_pre_player_mined_item, event_pre_player_mined_item)
event.add(defines.events.on_player_mined_entity, event_on_player_mined_entity)
event.add(defines.events.on_research_finished, event_on_research_finished)
event.add(defines.events.on_player_changed_surface, on_player_changed_surface)
event.add(defines.events.on_player_driving_changed_state, event_on_player_driving_changed_state)
-- event.add(defines.events.on_player_changed_position, event_on_player_changed_position)
-- event.add(defines.events.on_technology_effects_reset, event_on_technology_effects_reset)
-- event.add(defines.events.on_chunk_generated, PiratesApiEvents.on_chunk_generated) --moved to main in order to make the debug properties clear
event.add(defines.events.on_rocket_launched, event_on_rocket_launched)
event.add(defines.events.on_console_chat, event_on_console_chat)
event.add(defines.events.on_market_item_purchased, event_on_market_item_purchased)
event.add(defines.events.on_player_respawned, event_on_player_respawned)


return Public