public static void UpdateOrbiter(EntityManager EntityManager, Entity panelUI, float3 orbitPosition, float orbitLerpSpeed)
{
CameraLink cameraLink = EntityManager.GetComponentData <CameraLink>(panelUI);
OrbitCamera orbitor = new OrbitCamera
{
orbitPosition = orbitPosition,
lerpSpeed = orbitLerpSpeed
};
var frustumHeight = 2.0f * orbitor.orbitPosition.z * math.tan(math.radians(cameraLink.fov) * 0.5f);
var frustumWidth = frustumHeight * cameraLink.aspectRatio;
float positionX = orbitor.orbitPosition.x * frustumWidth;
float positionY = -orbitor.orbitPosition.y * frustumHeight;
orbitor.position = new float3(positionX, positionY, orbitor.orbitPosition.z);
EntityManager.SetComponentData(panelUI, orbitor);
if (EntityManager.Exists(cameraLink.camera))
{
float3 cameraPosition = EntityManager.GetComponentData <Translation>(cameraLink.camera).Value;
quaternion cameraRotation = EntityManager.GetComponentData <Rotation>(cameraLink.camera).Value;
EntityManager.SetComponentData(panelUI, new Translation {
Value = orbitor.GetTranslatedPosition(cameraPosition, cameraRotation)
});
}
}
