love.update (한국어)

매 프레임마다 게임의 상태를 갱신할 때 쓰이는 콜백 함수입니다.

함수

형식

love.update( dt )

매개 변수

number (한국어) dt
마지막 love.update로부터 경과된 시간.

리턴값

없음.

예제

Run a function called think inside a table called npc once per second.

dtotal = 0   -- this keeps track of how much time has passed
function love.update(dt)
   dtotal = dtotal + dt   -- we add the time passed since the last update, probably a very small number like 0.01
   if dtotal >= 1 then
      dtotal = dtotal - 1   -- reduce our timer by a second, but don't discard the change... what if our framerate is 2/3 of a second?
      npc.think()
   end
end

Change a variable var at a constant rate (+/- 3 per second in this example).

var = 10   -- arbitrary starting value
rate = 3   -- change to change the rate at which the var is changed
function love.update(dt)
   if love.keyboard.isDown("down") then   -- reduce the value
      var = var - (dt * rate)
   end
   if love.keyboard.isDown("up") then   -- increase the value
      var = var + (dt * rate)
   end
end

See Also


다른 언어