Map = Class{} -- error: attempt to call global 'Class' (a boolean value)

TILE_BRICK = 1
TILE_EMPTY = 4

function Map:init()
    self.spritesheet = love.graphics.newImage('graphics/spritesheet.png')
    self.tileWidth = 16
    self.tileheight = 16
    self.mapWidth = 30
    self.mapHeight = 28

    self.tiles = {}

    self.tileSprites = generateQuads(self.spritesheet, self.tileWidth, self.tileHeight)
    for y = 1, self.mapHeight/2 do -- iterate top to bottom through the map and go down to halfway through the map
        for x = 1, self.mapWidth do -- columns and rows
            self:setTile(x, y, TILE_EMPTY) -- this function is writted below
        end
    end

    -- starts halfway down the map, populates with bricks
    for y = self.mapHeight/2, self.mapHeight do -- loop through half the image... halfway onwards... increments implicitly. you can increment a different value with a ,
        --start halfway down the map
        for x = 1, self.mapWidth/2 do
            self:setTile(x, y, TILE_BRICK) -- starts halfway down the map and populates it with bricks
        end
    end
end

function Map:SetTile(x, y, tile)
    self.tiles[(y-1)*self.mapWidth + x] = tile
end


function Map:getTile(x, y)
    return self.tiles[(y-1)*self.mapWidth + x] -- return the same value
end

function Map:update(dt)

end

function Map:render()
    for y = 1, self.mapHeight do
        for x = 1, self.mapWidth do
            love.graphics.draw(self.spritesheet, self.tileSprites[self:getTile(x, y)],
                (x-1)*self.tileWidth, (y-1)*self.tileHeight)
        end
    end
end