LÖVE

Code: Select all

-- This example uses the default Box2D (love.physics) plugin!!

local sti = require "sti"

function love.load()
    -- Grab window size
    windowWidth  = love.graphics.getWidth()
    windowHeight = love.graphics.getHeight()

    -- Set world meter size (in pixels)
    love.physics.setMeter(32)

    -- Load a map exported to Lua from Tiled
    map = sti("assets/maps/map01.lua", { "box2d" })

    -- Prepare physics world with horizontal and vertical gravity
    world = love.physics.newWorld(0, 0)
	speed = 250
    -- Prepare collision objects
    map:box2d_init(world)

    -- Create a Custom Layer
    map:addCustomLayer("Sprite Layer", 3)

    -- Add data to Custom Layer
    local spriteLayer = map.layers["Sprite Layer"]
    spriteLayer.sprites = {
        player = {
            image = love.graphics.newImage("assets/sprites/player.png"),
            x = 88,
            y = 200,
            r = 0,
        }
    }

    -- Update callback for Custom Layer
    function spriteLayer:update(dt)
        for _, sprite in pairs(self.sprites) do
            if love.keyboard.isDown("right") then sprite.x = sprite.x + (speed * dt) end 
			if love.keyboard.isDown("left") then sprite.x = sprite.x - (speed * dt) end 
			if love.keyboard.isDown("down") then sprite.y = sprite.y + (speed * dt) end
			if love.keyboard.isDown("up") then sprite.y = sprite.y - (speed * dt) end
        end
    end

    -- Draw callback for Custom Layer
    function spriteLayer:draw()
        for _, sprite in pairs(self.sprites) do
            local x = math.floor(sprite.x)
            local y = math.floor(sprite.y)
            local r = sprite.r
            love.graphics.draw(sprite.image, x, y, r, 0.5, 0.5)
        end
    end
end

function love.update(dt)
    map:update(dt)
end

function love.draw()
    -- Translation would normally be based on a player's x/y
    local translateX = 0
    local translateY = 0

    -- Draw Range culls unnecessary tiles
    map:setDrawRange(translateX, translateY, windowWidth, windowHeight)

    -- Draw the map and all objects within
    map:draw()

    -- Draw Collision Map (useful for debugging)
    love.graphics.setColor(255, 0, 0, 255)
    map:box2d_draw()

    -- Reset color
    love.graphics.setColor(255, 255, 255, 255)
end