Первый коммит игры, карта тайлов

game/tilemap.lua

@@ -0,0 +1,75 @@
+TileMap = {}
+TileMap.__index = TileMap
+
+function TileMap:new(size, tiles, map, blendMode, canvasWidth, canvasHeight)
+    local this = {}
+    this.size = size
+    this.tiles = tiles or {}
+    this.map = map or {}
+    this.blendMode = blendMode
+    this.canvasWidth = canvasWidth or 320
+    this.canvasHeight = canvasHeight or canvasWidth or 200
+
+    this.offsetX = 0
+    this.offsetY = 0
+    this.tilesCanvasW = math.floor(this.canvasWidth / this.size)
+    this.tilesCanvasH = math.floor(this.canvasHeight / this.size)
+    this.canvas = love.graphics.newCanvas(this.canvasWidth, this.canvasHeight)
+
+    return setmetatable(this, TileMap)
+end
+
+function TileMap:random(x, y)
+    local map = {}
+    local tilesCount = #self.tiles
+
+    -- Заполнение массива
+    for i = 1, y do
+        map[i] = {}
+        for j = 1, x do
+            map[i][j] = math.random(1, tilesCount)
+        end
+    end
+
+    self.map = map
+end
+
+function TileMap:update()
+    if self.map[1] == nil then
+        return
+    end
+    local mapHeight = #self.map
+    local mapWidth = #self.map[1]
+    local x = self.offsetX
+    local y = self.offsetY
+    local jOffset = math.max(math.floor(x / self.size) + 1, 1)
+    local iOffset = math.max(math.floor(y / self.size) + 1, 1)
+    -- print(x, iOffset)
+    if jOffset > mapWidth or iOffset > mapHeight or -x >= self.canvasWidth or -y >= self.canvasHeight then
+        return
+    end
+    local jUpper = math.min(jOffset + self.tilesCanvasW, mapWidth)
+    local iUpper = math.min(iOffset + self.tilesCanvasH, mapHeight)
+
+    local prevCanvas = love.graphics.getCanvas()
+    love.graphics.setCanvas(self.canvas)
+    local prevBlendMode = love.graphics.getBlendMode()
+    love.graphics.setBlendMode(self.blendMode)
+
+    love.graphics.clear(0, 255, 0) -- TODO: debug
+
+    for i = iOffset, iUpper do
+        for j = jOffset, jUpper do
+            local tileIndex = self.map[i][j]
+            love.graphics.draw(self.tiles[tileIndex], self.size * (j - 1) - x, self.size * (i - 1) - y)
+            -- love.graphics.print(tostring(tileIndex), self.size * (j - 1) - x, self.size * (i - 1) - y)
+        end
+    end
+
+    love.graphics.setBlendMode(prevBlendMode)
+    love.graphics.setCanvas(prevCanvas)
+end
+
+function TileMap:draw(x, y)
+    love.graphics.draw(self.canvas, x, y)
+end