-- timer traps -- by mewmew

local tick_tacks = {"*tick*", "*tick*", "*tack*", "*tak*", "*tik*", "*tok*"}

local kaboom_weights = {
	{name = "grenade", chance = 7},
	{name = "cluster-grenade", chance = 1},
	{name = "destroyer-capsule", chance = 1},
	{name = "defender-capsule", chance = 4},
	{name = "distractor-capsule", chance = 3},
	{name = "poison-capsule", chance = 2},
	{name = "explosive-uranium-cannon-projectile", chance = 3},
	{name = "explosive-cannon-projectile", chance = 5},
}

local kabooms = {}				
for _, t in pairs (kaboom_weights) do
	for x = 1, t.chance, 1 do
		table.insert(kabooms, t.name)
	end			
end

local function create_flying_text(surface, position, text)
	if not surface.valid then return end
    	surface.create_entity({	
		name = "flying-text",
		position = position,
		text = text,
		color = {r=0.75, g=0.75, b=0.75}
	})
	if text == "..." then return end
	surface.play_sound({path="utility/armor_insert", position=position, volume_modifier=0.75})
end

local function create_kaboom(surface, position, name)
	if not surface.valid then return end
    	local target = position
	local speed = 0.5
	if name == "defender-capsule" or name == "destroyer-capsule" or name == "distractor-capsule" then 
		surface.create_entity({	
			name = "flying-text",
			position = position,
			text = "(((Sentries Engaging Target)))",
			color = {r=0.8, g=0.0, b=0.0}
		})		
		local nearest_player_unit = surface.find_nearest_enemy({position = position, max_distance=128, force="enemy"})
		if nearest_player_unit then target = nearest_player_unit.position end
		speed = 0.001
	end		
	surface.create_entity({	
		name = name,
		position = position,
		force = "enemy",
		target = target,
		speed = speed
	})			
end

local function tick_tack_trap(surface, position)
	if not surface then return end
    	if not surface.valid then return end 
	if not position then return end
	if not position.x then return end
	if not position.y then return end
	local tick_tack_count = math.random(5, 9)	
	for t = 60, tick_tack_count * 60, 60 do
		if not global.on_tick_schedule[game.tick + t] then global.on_tick_schedule[game.tick + t] = {} end	
		
		if t < tick_tack_count * 60 then
			global.on_tick_schedule[game.tick + t][#global.on_tick_schedule[game.tick + t] + 1] = {
				func = create_flying_text,
				args = {surface, {x = position.x, y = position.y}, tick_tacks[math.random(1, #tick_tacks)]}
			}
		else
			if math.random(1, 10) == 1 then
				global.on_tick_schedule[game.tick + t][#global.on_tick_schedule[game.tick + t] + 1] = {
					func = create_flying_text,
					args = {surface, {x = position.x, y = position.y}, "..."}
				}
			else
				global.on_tick_schedule[game.tick + t][#global.on_tick_schedule[game.tick + t] + 1] = {
					func = create_kaboom,
					args = {surface, {x = position.x, y = position.y}, kabooms[math.random(1, #kabooms)]}
				}
			end			
		end			
	end
end

return tick_tack_trap