//Game loop
func (game *Game) Run() {
defer game.Exit()
if game.initFun == nil {
fmt.Println("Go2D Warning: No init function set!")
}
if game.updateFun == nil {
fmt.Println("Go2D Warning: No update function set!")
}
if game.drawFun == nil {
fmt.Println("Go2D Warning: No draw function set!")
}
//Initialize the game
game.initialize()
var dt, old_t, now_t uint32 = 0, 0, 0
for game.running {
//Check for events and handle them
for {
event, present := sdl.PollEvent()
if present {
EventHandler(event)
} else {
break
}
}
//Calculate time delta
now_t = sdl.GetTicks()
dt = now_t - old_t
old_t = now_t
//Update
game.update(dt)
//Draw
game.draw()
//Give the CPU some time to do other stuff
sdl.Delay(1)
}
}
func GetTicks() uint32 {
return sdl.GetTicks()
}