func NewStateMachine(initial StateMachineState) *StateMachine {
sm := &StateMachine{
timer: timer.NewTimer(),
}
sm.initialState = initial
return sm
}
func (w *World) worldTick() {
var gameTime float64
var accumulator float64
var frameTime float64
dt := 0.01
timer := timer.NewTimer()
currentTime := timer.Seconds()
for {
newTime := timer.Seconds()
frameTime = newTime - currentTime
currentTime = newTime
accumulator += frameTime
for accumulator >= dt {
// Individual entities
w.entityManager.Update(w, dt)
accumulator -= (dt)
gameTime += dt
}
// world AI
w.director.Update(w, dt, gameTime)
// tell the event manager to dispatch all queued events
events.DispatchEvents()
}
}