Hi there,
I was going crazy trying to calculate the angle between two game objects using only x and y. So I made a simple action that works like most 2d programs. Math.atan to get the angle. Works perfectly for me so hope it can help someone.
using UnityEngine;
using HutongGames.PlayMaker;
[ActionCategory(ActionCategory.Transform)]
[Tooltip("XY angle")]
public class xyAngleBetweenTwoPoints : FsmStateAction {
[RequiredField]
[Tooltip("The game object whose forward axis we measure from. If the target is dead ahead the angle will be 0.")]
public FsmOwnerDefault gameObject;
[Tooltip("The target object to measure the angle to. Or use target position.")]
public FsmGameObject targetObject;
[RequiredField]
[UIHint(UIHint.Variable)]
[Tooltip("Store the angle in a float variable.")]
public FsmFloat storeAngle;
[Tooltip("Repeat every frame.")]
public bool everyFrame;
public override void Reset() {
gameObject = null;
targetObject = null;
storeAngle = null;
everyFrame = false;
}
public override void OnLateUpdate() {
DoGetAngleToTarget();
if (!everyFrame) {
Finish();
}
}
void DoGetAngleToTarget() {
var go = Fsm.GetOwnerDefaultTarget(gameObject);
if (go == null) {
return;
}
var goTarget = targetObject.Value;
if (goTarget == null) {
return;
}
float xDiff = goTarget.transform.position.x - go.transform.position.x;
float yDiff = goTarget.transform.position.y - go.transform.position.y;
storeAngle.Value = Mathf.Atan2(yDiff, xDiff) * (180 / Mathf.PI);
}
}
Thanks
Will
