LÖVE

Code: Select all

require "menu"

function love.load()
  --Load the Object

  version =" 0.1.1"
  screenWidth = 800 --Screen Width
  screenHeight = 600 -- Screen Heigth

  gamestate = "menu"

  titleMedium = love.graphics.newFont(45)
  menuBackground = love.graphics.newImage("assets/menu/menuBackground.jpg")
  menuMusic = love.audio.newSource("assets/menu/music.mp3", "static")

  platformImage = love.image.newImageData("assets/background.jpg")
  starImage = love.image.newImageData("assets/star_overlay.png")
  stars = love.graphics.newImage("assets/star_overlay.png")
  player = love.graphics.newImage("assets/player.png")

  startButton = love.graphics.newImage("assets/menu/start.png")
  quitButton = love.graphics.newImage("assets/menu/quit.png")

  love.window.setMode(screenWidth, screenHeight)
  print('setMode Done')
  screenCanvas = love.image.newImageData(screenWidth, screenHeight)
  screenCanvas1 = love.image.newImageData(screenWidth, screenHeight)
  print('Loaded Resources')

  bWidth = platformImage:getWidth()
  bHeight = platformImage:getHeight()

  sWidth = starImage:getWidth()
  sHeight = starImage:getHeight()

  playerSpeed = 15   
  starSpeed = 90

  nStars = 100

  xB = 0
  yB = 0
  xS = 0
  yS = 0
  print('Loaded Variables')

  --Main Menu Buttons
  button_spawn(startButton, 300, 250, "start")
  button_spawn(quitButton, 300,330, "quit")

  love.audio.play(menuMusic)

  if gamestate == "playing" then


  end

  print("Spice Invaders v" .. version .. " loaded.")

end

function love.update(dt)
--Update the Object
  if gamestate == "playing" then

    if love.keyboard.isDown("d") then
      xB = xB + (playerSpeed * dt)
    elseif love.keyboard.isDown("a") then
      xB = xB - (playerSpeed * dt)
    end
    if love.keyboard.isDown("s") then
      yB = yB + (playerSpeed * dt)
    elseif love.keyboard.isDown("w") then
      yB = yB - (playerSpeed * dt)
    end

    -- yS = yS - (starSpeed * dt)   

    screenCanvas:paste(platformImage,0,0,xB,yB)
    --   screenCanvas1:paste(starImage,0,0,xS,yS)
  end
end


function love.draw()
  --Draw the Object
  if gamestate == "playing" then
    love.graphics.setColor(255,255,255)

    finalImage = love.graphics.newImage(screenCanvas)
    --finalImage1 = love.graphics.newImage(screenCanvas1)

    love.graphics.draw(finalImage, -1, -1)
    -- love.graphics.draw(finalImage1, -1, -1)

    love.graphics.print("FPS: "..love.timer.getFPS() .. '\nMem(kB): ' .. math.floor(collectgarbage("count")), 650, 20)
    love.graphics.draw(player, 350, 250)


  end

  if gamestate == "menu" then
    love.graphics.draw(menuBackground, 0, 0)
    button_draw()
    love.graphics.setColor(255, 255, 255)
    love.graphics.print("Music Copyright by: SS Productions", 10, 580)
  end

end

function love.focus(bool)
end

function love.keypressed( key, unicode )

end

function love.keyreleased( key, unicode )
end

function love.mousepressed( x, y, button )

  if gamestate == "menu" then
    button_click(x,y)
  end

end

function love.mousereleased( x, y, button )
end

function love.quit()
end

Code: Select all

--initialization code or whatever

background_image = --whatever image. Also, Image doesn't really matter as the method is the same.
background_y = 0
background_spd = 50 --speed of background scrolling in pixels-per-second

--more stuff...

function love.update(dt)

    --Each update loop we shift our background's y position down the screen (+y direction)
    --by our scroll speed scaled by the delta time to allow for variable framerates.
    background_y = background_y + background_spd * dt

    --We then check whether our y position has left the bottom of the screen.
    --If it has, just reset it.
    --The reason you don't simply reset it to 0 is that it might introduce a "jerk" in the scrolling.
    --Instead, we just subtract the screen height.
    if background_y > love.graphics.getHeight() then
        background_y = background_y - love.graphics.getHeight()
    end

end

function love.draw()

    --As micha said, we need to draw two images to cover the whole screen. 
    --The first is the "main" image, and assuming we are scrolling the background down the screen (+y direction by default), 
    --the second is drawn offset up by the image height to fill in the empty space 
    --that appears above the main image as it scrolls down.
    love.graphics.draw(background_image, 0, background_y) 
    love.graphics.draw(background_image, 0, background_y - background_image:getHeight())

end