83 lines
2.0 KiB
C#
83 lines
2.0 KiB
C#
// (c) Copyright HutongGames, LLC 2010-2016. All rights reserved.
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// original action created by collidernyc: http://hutonggames.com/playmakerforum/index.php?topic=7075.msg37373#msg37373
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using UnityEngine;
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namespace HutongGames.PlayMaker.Actions
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{
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[ActionCategory(ActionCategory.Transform)]
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[Tooltip("Rotates a 2d Game Object on it's z axis so its forward vector points at a Target.")]
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public class LookAt2dGameObject : FsmStateAction
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{
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[RequiredField]
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[Tooltip("The GameObject to rotate.")]
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public FsmOwnerDefault gameObject;
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[Tooltip("The GameObject to Look At.")]
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public FsmGameObject targetObject;
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[Tooltip("Set the GameObject starting offset. In degrees. 0 if your object is facing right, 180 if facing left etc...")]
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public FsmFloat rotationOffset;
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[Title("Draw Debug Line")]
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[Tooltip("Draw a debug line from the GameObject to the Target.")]
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public FsmBool debug;
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[Tooltip("Color to use for the debug line.")]
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public FsmColor debugLineColor;
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[Tooltip("Repeat every frame.")]
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public bool everyFrame = true;
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private GameObject go;
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private GameObject goTarget;
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public override void Reset()
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{
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gameObject = null;
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targetObject = null;
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debug = false;
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debugLineColor = Color.green;
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everyFrame = true;
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}
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public override void OnEnter()
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{
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DoLookAt();
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if (!everyFrame)
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{
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Finish();
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}
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}
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public override void OnUpdate()
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{
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DoLookAt();
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}
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void DoLookAt()
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{
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go = Fsm.GetOwnerDefaultTarget(gameObject);
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goTarget = targetObject.Value;
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if (go == null || targetObject == null)
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{
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return;
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}
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var diff = goTarget.transform.position - go.transform.position;
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diff.Normalize();
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var rot_z = Mathf.Atan2(diff.y, diff.x) * Mathf.Rad2Deg;
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go.transform.rotation = Quaternion.Euler(0f, 0f, rot_z - rotationOffset.Value);
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if (debug.Value)
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{
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Debug.DrawLine(go.transform.position, goTarget.transform.position, debugLineColor.Value);
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}
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}
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}
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} |