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https://github.com/veden/Rampant.git
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106 lines
3.8 KiB
Lua
106 lines
3.8 KiB
Lua
local pheromoneUtils = {}
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-- imports
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local mapUtils = require("MapUtils")
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local constants = require("Constants")
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-- constants
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local MOVEMENT_PHEROMONE = constants.MOVEMENT_PHEROMONE
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local BASE_PHEROMONE = constants.BASE_PHEROMONE
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local PLAYER_PHEROMONE = constants.PLAYER_PHEROMONE
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local PLAYER_BASE_GENERATOR = constants.PLAYER_BASE_GENERATOR
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local ENEMY_BASE_GENERATOR = constants.ENEMY_BASE_GENERATOR
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local PLAYER_PHEROMONE_GENERATOR_AMOUNT = constants.PLAYER_PHEROMONE_GENERATOR_AMOUNT
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local DEATH_PHEROMONE_GENERATOR_AMOUNT = constants.MOVEMENT_PHEROMONE_GENERATOR_AMOUNT
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local STANDARD_PHERONOME_DIFFUSION_AMOUNT = constants.STANDARD_PHERONOME_DIFFUSION_AMOUNT
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local MOVEMENT_PHEROMONE_DIFFUSION_AMOUNT = constants.MOVEMENT_PHEROMONE_DIFFUSION_AMOUNT
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local MOVEMENT_PHEROMONE_PERSISTANCE = constants.MOVEMENT_PHEROMONE_PERSISTANCE
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local REDUCED_MOVEMENT_PHEROMONE_PERSISTANCE = constants.REDUCED_MOVEMENT_PHEROMONE_PERSISTANCE
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local STANDARD_PHEROMONE_PERSISTANCE = constants.STANDARD_PHEROMONE_PERSISTANCE
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local NORTH_SOUTH_PASSABLE = constants.NORTH_SOUTH_PASSABLE
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local EAST_WEST_PASSABLE = constants.EAST_WEST_PASSABLE
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-- imported functions
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local getChunkByPosition = mapUtils.getChunkByPosition
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local getCardinalChunks = mapUtils.getCardinalChunks
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-- module code
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function pheromoneUtils.scents(chunk)
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-- if (chunk[]) then
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-- end
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if not chunk[NORTH_SOUTH_PASSABLE] and not chunk[EAST_WEST_PASSABLE] then
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chunk[BASE_PHEROMONE] = -100;
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else
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chunk[BASE_PHEROMONE] = chunk[BASE_PHEROMONE] + chunk[PLAYER_BASE_GENERATOR] -- chunk[ENEMY_BASE_GENERATOR]
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end
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end
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function pheromoneUtils.deathScent(chunk)
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chunk[MOVEMENT_PHEROMONE] = chunk[MOVEMENT_PHEROMONE] - DEATH_PHEROMONE_GENERATOR_AMOUNT
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end
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function pheromoneUtils.playerScent(playerChunk)
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playerChunk[PLAYER_PHEROMONE] = playerChunk[PLAYER_PHEROMONE] + PLAYER_PHEROMONE_GENERATOR_AMOUNT
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end
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function pheromoneUtils.processPheromone(regionMap, chunk)
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local neighbors
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-- pheromone level indexes on chunks are 1 - 3
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-- unrolled loop one level
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local diffusionAmount = MOVEMENT_PHEROMONE_DIFFUSION_AMOUNT
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local persistence
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if (chunk[BASE_PHEROMONE] < 0) then
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persistence = REDUCED_MOVEMENT_PHEROMONE_PERSISTANCE
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else
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persistence = MOVEMENT_PHEROMONE_PERSISTANCE
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end
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local totalDiffused = 0
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local chunkValue = chunk[MOVEMENT_PHEROMONE] * persistence
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local diffusedAmount = chunkValue * diffusionAmount
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if (diffusedAmount > 1.5) or (diffusedAmount < -1.5) then
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neighbors = getCardinalChunks(regionMap, chunk.cX, chunk.cY)
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for i=1,#neighbors do
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local neighborChunk = neighbors[i]
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if (neighborChunk ~= nil) and (neighborChunk[NORTH_SOUTH_PASSABLE] or neighborChunk[EAST_WEST_PASSABLE]) then
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totalDiffused = totalDiffused + diffusedAmount
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neighborChunk[MOVEMENT_PHEROMONE] = neighborChunk[MOVEMENT_PHEROMONE] + diffusedAmount
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end
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end
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end
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chunk[MOVEMENT_PHEROMONE] = (chunkValue - totalDiffused)
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diffusionAmount = STANDARD_PHERONOME_DIFFUSION_AMOUNT
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persistence = STANDARD_PHEROMONE_PERSISTANCE
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for x=2,3 do
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totalDiffused = 0
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chunkValue = chunk[x] * persistence
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diffusedAmount = chunkValue * diffusionAmount
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if (diffusedAmount > 1.5) or (diffusedAmount < -1.5) then
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if (neighbors == nil) then
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neighbors = getCardinalChunks(regionMap, chunk.cX, chunk.cY)
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end
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for i=1,#neighbors do
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local neighborChunk = neighbors[i]
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if (neighborChunk ~= nil) and (neighborChunk[NORTH_SOUTH_PASSABLE] or neighborChunk[EAST_WEST_PASSABLE]) then
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totalDiffused = totalDiffused + diffusedAmount
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neighborChunk[x] = neighborChunk[x] + diffusedAmount
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end
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end
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end
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chunk[x] = (chunkValue - totalDiffused)
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end
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end
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return pheromoneUtils
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