func NewMouseZoomer(zoomSpeed float32) *MouseZoomer {
es := &MouseZoomer{
zoomSpeed: zoomSpeed,
}
es.New(nil)
es.AddEntity(ecs.NewEntity([]string{es.Type()}))
return es
}
func NewEdgeScroller(scrollSpeed float32, margin float64) *EdgeScroller {
es := &EdgeScroller{
scrollSpeed: scrollSpeed,
margin: margin,
}
es.New(nil)
es.AddEntity(ecs.NewEntity([]string{es.Type()}))
return es
}
func NewKeyboardScroller(scrollSpeed float32, up, right, down, left Key) *KeyboardScroller {
kbs := &KeyboardScroller{
scrollSpeed: scrollSpeed,
}
kbs.New(nil)
kbs.BindKeyboard(up, right, down, left)
kbs.AddEntity(ecs.NewEntity([]string{kbs.Type()}))
return kbs
}
// BenchmarkEntity1000 creates 1000 `Entity`s which all depend on the `NilSystem`
func BenchmarkEntity1000(b *testing.B) {
const count = 1000
preload := func() {}
setup := func(w *ecs.World) {
w.AddSystem(&NilSystem{})
for i := 0; i < count; i++ {
w.AddEntity(ecs.NewEntity([]string{"NilSystem"}))
}
}
Bench(b, preload, setup)
}
func (cam *cameraSystem) New(*ecs.World) {
cam.System = ecs.NewSystem()
cam.x = WorldBounds.Max.X / 2
cam.y = WorldBounds.Max.Y / 2
cam.z = 1
cam.AddEntity(ecs.NewEntity([]string{cam.Type()}))
Mailbox.Listen("CameraMessage", func(msg Message) {
cammsg, ok := msg.(CameraMessage)
if !ok {
return
}
if cammsg.Incremental {
switch cammsg.Axis {
case XAxis:
cam.moveX(cammsg.Value)
case YAxis:
cam.moveY(cammsg.Value)
case ZAxis:
cam.zoom(cammsg.Value)
}
} else {
switch cammsg.Axis {
case XAxis:
cam.moveToX(cammsg.Value)
case YAxis:
cam.moveToY(cammsg.Value)
case ZAxis:
cam.zoomTo(cammsg.Value)
}
}
})
}