func (sp *SmoothFollow) LateUpdate() {
camera := engine.CurrentCamera()
if camera != nil {
myPos := sp.Target.Transform().Position()
camPos := camera.Transform().Position()
if sp.Speed > 0 {
camPos = engine.Lerp(camPos, myPos, float32(engine.DeltaTime())*sp.Speed)
disX := camPos.X - myPos.X
disY := camPos.Y - myPos.Y
if float32(math.Abs(float64(disX))) > sp.MaxDis {
if disX < 0 {
camPos.X = myPos.X - sp.MaxDis
} else {
camPos.X = myPos.X + sp.MaxDis
}
}
if float32(math.Abs(float64(disY))) > sp.MaxDis {
if disY < 0 {
camPos.Y = myPos.Y - sp.MaxDis
} else {
camPos.Y = myPos.Y + sp.MaxDis
}
}
} else {
camPos = myPos
}
camera.Transform().SetPosition(camPos)
}
}
func (b *back) Update() {
camera := engine.GetScene().SceneBase().Camera
if camera != nil {
myPos := engine.Vector{b.Transform().Position().X - float32(engine.Width/2), b.Transform().Position().Y - float32(engine.Height/2), 0}
camPos := camera.Transform().Position()
myPos = engine.Lerp(myPos, camPos, float32(engine.DeltaTime())*5)
disX := myPos.X - camPos.X
disY := myPos.Y - camPos.Y
var MaxDis float32 = 300
if float32(math.Abs(float64(disX))) > MaxDis {
if disX < 0 {
myPos.X = MaxDis - myPos.X
} else {
myPos.X = myPos.X + MaxDis
}
}
if float32(math.Abs(float64(disY))) > MaxDis {
if disY < 0 {
myPos.Y = MaxDis - myPos.Y
} else {
myPos.Y = myPos.Y + MaxDis
}
}
b.Transform().SetPosition(camPos)
}
}