91 lines
2.1 KiB
C#
91 lines
2.1 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 2d or 3d position.")]
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public class LookAt2d : 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 2d position to Look At.")]
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public FsmVector2 vector2Target;
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[Tooltip("The 3d position to Look At. If not set to none, will be added to the 2d target")]
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public FsmVector3 vector3Target;
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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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public override void Reset()
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{
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gameObject = null;
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vector2Target = null;
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vector3Target = new FsmVector3() {UseVariable=true};
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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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var go = Fsm.GetOwnerDefaultTarget(gameObject);
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if (go == null)
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{
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return;
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}
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var target = new Vector3(vector2Target.Value.x,vector2Target.Value.y,0f);
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if (!vector3Target.IsNone)
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{
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target += vector3Target.Value;
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}
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var diff = target - 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, target, debugLineColor.Value);
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}
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}
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}
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} |