-- sprite move example

function love.load()
  -- init
  
  -- get window width and height
  scrw = love.graphics.getWidth()
  scrh = love.graphics.getHeight()
  
  -- load image
  bgimg = love.graphics.newImage("bg_1280x720.png")
  playerimg = love.graphics.newImage("spaceship_001_64x64.png")
  
  -- player work
  player = {}
  player.x = scrw / 2
  player.y = scrh / 2
  player.speed = 300
end

function love.update(dt)
  -- update
  
  -- key check
  if love.keyboard.isDown("left") then
    player.x = player.x - player.speed * dt
  elseif love.keyboard.isDown("right") then
    player.x = player.x + player.speed * dt
  end
  if love.keyboard.isDown("up") then
    player.y = player.y - player.speed * dt
  elseif love.keyboard.isDown("down") then
    player.y = player.y + player.speed * dt
  end
end

function love.draw()
  -- draw BG
  love.graphics.setColor(255, 255, 255, 255)
  love.graphics.draw(bgimg, 0, 0)
  -- love.graphics.rectangle("fill", 0, 465, scrw, 150)
  love.graphics.setColor(255, 255, 255, 255)
  
  -- draw player
  ofsx = playerimg:getWidth() / 2
  ofsy = playerimg:getHeight() / 2
  love.graphics.draw(playerimg, player.x - ofsx, player.y - ofsy)
  
  love.graphics.print("FPS: "..tostring(love.timer.getFPS()), 10, 10)
end

function love.keypressed(key, isrepeat)
  -- ESC to exit
  if key == "escape" then
    love.event.quit()
  end
end