mirror of
https://github.com/veden/Rampant.git
synced 2024-12-28 21:08:22 +02:00
253 lines
7.9 KiB
Lua
253 lines
7.9 KiB
Lua
if mapUtilsG then
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return mapUtilsG
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end
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local mapUtils = {}
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-- imports
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local constants = require("Constants")
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local chunkPropertyUtils = require("ChunkPropertyUtils")
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-- constants
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local CHUNK_NORTH_SOUTH = constants.CHUNK_NORTH_SOUTH
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local CHUNK_EAST_WEST = constants.CHUNK_EAST_WEST
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local CHUNK_IMPASSABLE = constants.CHUNK_IMPASSABLE
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local CHUNK_ALL_DIRECTIONS = constants.CHUNK_ALL_DIRECTIONS
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local CHUNK_SIZE = constants.CHUNK_SIZE
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local CHUNK_SIZE_DIVIDER = constants.CHUNK_SIZE_DIVIDER
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-- imported functions
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local mFloor = math.floor
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local getPassable = chunkPropertyUtils.getPassable
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-- module code
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function mapUtils.getChunkByXY(map, x, y)
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local chunkX = map[x]
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if chunkX then
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return chunkX[y] or -1
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end
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return -1
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end
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function mapUtils.getChunkByPosition(map, position)
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local chunkX = map[mFloor(position.x * CHUNK_SIZE_DIVIDER) * CHUNK_SIZE]
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if chunkX then
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local chunkY = mFloor(position.y * CHUNK_SIZE_DIVIDER) * CHUNK_SIZE
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return chunkX[chunkY] or -1
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end
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return -1
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end
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function mapUtils.getChunkById(map, chunkId)
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return map.universe.chunkIdToChunk[chunkId] or -1
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end
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function mapUtils.positionToChunkXY(position)
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local chunkX = mFloor(position.x * CHUNK_SIZE_DIVIDER) * CHUNK_SIZE
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local chunkY = mFloor(position.y * CHUNK_SIZE_DIVIDER) * CHUNK_SIZE
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return chunkX, chunkY
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end
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function mapUtils.queueGeneratedChunk(universe, event)
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local map = universe.maps[event.surface.index]
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if not map then
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return
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end
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event.tick = (event.tick or game.tick) + 20
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event.id = universe.eventId
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event.map = map
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universe.pendingChunks[event.id] = event
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universe.eventId = universe.eventId + 1
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end
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function mapUtils.nextMap(universe)
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local mapIterator = universe.mapIterator
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repeat
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local map
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universe.mapIterator, map = next(universe.maps, universe.mapIterator)
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if map and map.activeSurface then
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return map
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end
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until mapIterator == universe.mapIterator
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end
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--[[
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1 2 3
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\|/
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4- -5
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/|\
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6 7 8
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]]--
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function mapUtils.getNeighborChunks(map, x, y)
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local neighbors = map.universe.neighbors
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local chunkYRow1 = y - CHUNK_SIZE
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local chunkYRow3 = y + CHUNK_SIZE
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local xChunks = map[x-CHUNK_SIZE]
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if xChunks then
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neighbors[1] = xChunks[chunkYRow1] or -1
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neighbors[4] = xChunks[y] or -1
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neighbors[6] = xChunks[chunkYRow3] or -1
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else
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neighbors[1] = -1
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neighbors[4] = -1
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neighbors[6] = -1
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end
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xChunks = map[x+CHUNK_SIZE]
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if xChunks then
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neighbors[3] = xChunks[chunkYRow1] or -1
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neighbors[5] = xChunks[y] or -1
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neighbors[8] = xChunks[chunkYRow3] or -1
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else
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neighbors[3] = -1
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neighbors[5] = -1
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neighbors[8] = -1
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end
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xChunks = map[x]
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if xChunks then
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neighbors[2] = xChunks[chunkYRow1] or -1
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neighbors[7] = xChunks[chunkYRow3] or -1
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else
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neighbors[2] = -1
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neighbors[7] = -1
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end
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return neighbors
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end
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--[[
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1 2 3
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\|/
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4- -5
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/|\
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6 7 8
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]]--
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function mapUtils.canMoveChunkDirection(map, direction, startChunk, endChunk)
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local canMove = false
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local startPassable = getPassable(map, startChunk)
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local endPassable = getPassable(map, endChunk)
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if (startPassable == CHUNK_ALL_DIRECTIONS) then
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if ((direction == 1) or (direction == 3) or (direction == 6) or (direction == 8)) then
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canMove = (endPassable == CHUNK_ALL_DIRECTIONS)
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elseif (direction == 2) or (direction == 7) then
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canMove = ((endPassable == CHUNK_NORTH_SOUTH) or (endPassable == CHUNK_ALL_DIRECTIONS))
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elseif (direction == 4) or (direction == 5) then
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canMove = ((endPassable == CHUNK_EAST_WEST) or (endPassable == CHUNK_ALL_DIRECTIONS))
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end
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elseif (startPassable == CHUNK_NORTH_SOUTH) then
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if ((direction == 1) or (direction == 3) or (direction == 6) or (direction == 8)) then
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canMove = (endPassable == CHUNK_ALL_DIRECTIONS)
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elseif (direction == 2) or (direction == 7) then
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canMove = ((endPassable == CHUNK_NORTH_SOUTH) or (endPassable == CHUNK_ALL_DIRECTIONS))
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end
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elseif (startPassable == CHUNK_EAST_WEST) then
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if ((direction == 1) or (direction == 3) or (direction == 6) or (direction == 8)) then
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canMove = (endPassable == CHUNK_ALL_DIRECTIONS)
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elseif (direction == 4) or (direction == 5) then
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canMove = ((endPassable == CHUNK_EAST_WEST) or (endPassable == CHUNK_ALL_DIRECTIONS))
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end
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else
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canMove = (endPassable ~= CHUNK_IMPASSABLE)
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end
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return canMove
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end
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function mapUtils.getCardinalChunks(map, x, y)
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local neighbors = map.universe.cardinalNeighbors
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local xChunks = map[x]
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if xChunks then
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neighbors[1] = xChunks[y-CHUNK_SIZE] or -1
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neighbors[4] = xChunks[y+CHUNK_SIZE] or -1
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else
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neighbors[1] = -1
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neighbors[4] = -1
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end
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xChunks = map[x-CHUNK_SIZE]
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if xChunks then
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neighbors[2] = xChunks[y] or -1
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else
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neighbors[2] = -1
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end
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xChunks = map[x+CHUNK_SIZE]
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if xChunks then
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neighbors[3] = xChunks[y] or -1
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else
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neighbors[3] = -1
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end
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return neighbors
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end
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function mapUtils.positionFromDirectionAndChunk(direction, startPosition, scaling)
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local endPosition = {}
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if (direction == 1) then
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endPosition.x = startPosition.x - CHUNK_SIZE * (scaling - 0.1)
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endPosition.y = startPosition.y - CHUNK_SIZE * (scaling - 0.1)
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elseif (direction == 2) then
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endPosition.x = startPosition.x
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endPosition.y = startPosition.y - CHUNK_SIZE * (scaling + 0.25)
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elseif (direction == 3) then
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endPosition.x = startPosition.x + CHUNK_SIZE * (scaling - 0.1)
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endPosition.y = startPosition.y - CHUNK_SIZE * (scaling - 0.1)
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elseif (direction == 4) then
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endPosition.x = startPosition.x - CHUNK_SIZE * (scaling + 0.25)
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endPosition.y = startPosition.y
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elseif (direction == 5) then
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endPosition.x = startPosition.x + CHUNK_SIZE * (scaling + 0.25)
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endPosition.y = startPosition.y
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elseif (direction == 6) then
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endPosition.x = startPosition.x - CHUNK_SIZE * (scaling - 0.1)
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endPosition.y = startPosition.y + CHUNK_SIZE * (scaling - 0.1)
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elseif (direction == 7) then
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endPosition.x = startPosition.x
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endPosition.y = startPosition.y + CHUNK_SIZE * (scaling + 0.25)
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elseif (direction == 8) then
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endPosition.x = startPosition.x + CHUNK_SIZE * (scaling - 0.1)
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endPosition.y = startPosition.y + CHUNK_SIZE * (scaling - 0.1)
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end
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return endPosition
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end
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function mapUtils.positionFromDirectionAndFlat(direction, startPosition, multipler)
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local lx = startPosition.x
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local ly = startPosition.y
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if not multipler then
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multipler = 1
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end
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if (direction == 1) then
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lx = lx - CHUNK_SIZE * multipler
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ly = ly - CHUNK_SIZE * multipler
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elseif (direction == 2) then
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ly = ly - CHUNK_SIZE * multipler
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elseif (direction == 3) then
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lx = lx + CHUNK_SIZE * multipler
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ly = ly - CHUNK_SIZE * multipler
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elseif (direction == 4) then
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lx = lx - CHUNK_SIZE * multipler
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elseif (direction == 5) then
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lx = lx + CHUNK_SIZE * multipler
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elseif (direction == 6) then
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lx = lx - CHUNK_SIZE * multipler
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ly = ly + CHUNK_SIZE * multipler
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elseif (direction == 7) then
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ly = ly + CHUNK_SIZE * multipler
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elseif (direction == 8) then
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lx = lx + CHUNK_SIZE * multipler
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ly = ly + CHUNK_SIZE * multipler
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end
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return {
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x = lx,
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y = ly
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}
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end
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mapUtilsG = mapUtils
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return mapUtils
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