public override void Update(float dt)
{
base.Update(dt);
if (CCMouse.Instance.HasPosition)
{
// turn the control body based on the angle relative to the actual body
cpVect mouseDelta = cpVect.cpvsub(CCMouse.Instance.Position, tankBody.GetPosition());
float turn = cpVect.cpvtoangle(cpVect.cpvunrotate(tankBody.GetRotation(), mouseDelta));
tankControlBody.SetAngle(tankBody.GetAngle() - turn);
// drive the tank towards the mouse
if (cpVect.cpvnear(CCMouse.Instance.Position, tankBody.GetPosition(), 30))
{
tankControlBody.SetVelocity(cpVect.Zero); // stop
}
else
{
float direction = (cpVect.cpvdot(mouseDelta, tankBody.GetRotation()) > 0 ? 1 : -1);
tankControlBody.SetVelocity(cpVect.cpvrotate(tankBody.GetRotation(), new cpVect(30 * direction, 0)));
}
}
space.Step(dt);
}
/// <summary>
/// Updates the transforms position to the physics bodys position
/// NOTE: When settings the position directly of a transform, you are also setting the position of the physics object
/// This create unwanted behavoir so use this function to set the position without changing the rigidbodys transform
/// </summary>
public void UpdateToBodyTransform()
{
if (HasPhysicsAttached)
{
cpVect pos = AttachedPhysicsBody.GetPosition();
_position = new Vector2(pos.x * Physics.PHYSICS_TRANSFORM_SCALE, pos.y * Physics.PHYSICS_TRANSFORM_SCALE);
_rotation = AttachedPhysicsBody.GetAngle();
}
}
//UpdatePosition then to Rendering game
public void UpdatePosition(float dt)
{
mRigidbody2D.UpdatePosition(dt);
// X.Tools.LogUtils.Debug(X.Tools.LogTag.Test, this.gameObject.name + ":" + mRigidbody2D.GetPosition().ToString());
cpPos = mRigidbody2D.GetPosition();
mPostion.Set(cpPos.x, cpPos.y);
mAngle = cp.cpfangle(mRigidbody2D.GetAngle());
//this.transform.SetPositionAndRotation(new Vector3(cpPos.x * 0.01f, cpPos.y * 0.01f, 0f), Quaternion.Euler(0f,0f, mAngle));//z-Euler
this.transform.position = mPostion * XSpaceManager.UnitsPerPixel;
this.transform.rotation = Quaternion.Euler(0f, 0f, mAngle);
}
public override void Update(long gametime)
{
physic.UpdateVelocity(space.GetGravity(), 1, 0.01f);
physic.UpdatePosition(1);
shp.Update(trsf);
cpVect position = physic.GetPosition();
InvokeOnMainThread(() => {
SetPosition(position);
});
angle = (physic.GetAngle() % 360) / 57.2958f;
if (position.y > 500)
{
physic.ApplyImpulse(new cpVect(1, -150), new cpVect(0.1f, 0.1f));
}
}
