Playmaker Forum

PlayMaker Help & Tips => PlayMaker Help => Topic started by: Namaragan on November 12, 2014, 12:20:54 PM

Title: Limiting rotation of Look At 2d[SOLVED]
Post by: Namaragan on November 12, 2014, 12:20:54 PM

Hello , I am working on 2d game , and in one of my objects I need to limit the rotation done by Look At 2d   .

Code: [Select]

// (c) Copyright HutongGames, LLC 2010-2014. All rights reserved.
// original action created by collidernyc: http://hutonggames.com/playmakerforum/index.php?topic=7075.msg37373#msg37373

using UnityEngine;

namespace HutongGames.PlayMaker.Actions
{
[ActionCategory(ActionCategory.Transform)]
[Tooltip("Rotates a 2d Game Object on it's z axis so its forward vector points at a 2d or 3d position.")]
public class ClampedLookAt2d : FsmStateAction
{
[RequiredField]
[Tooltip("The GameObject to rotate.")]
public FsmOwnerDefault gameObject;

[Tooltip("The 2d position to Look At.")]
public FsmVector2 vector2Target;

[Tooltip("The 3d position to Look At. If not set to none, will be added to the 2d target")]
public FsmVector3 vector3Target;

[Tooltip("Set the GameObject starting offset. In degrees. 0 if your object is facing right, 180 if facing left etc...")]
public FsmFloat rotationOffset;

[Title("Draw Debug Line")]
[Tooltip("Draw a debug line from the GameObject to the Target.")]
public FsmBool debug;

[Tooltip("Color to use for the debug line.")]
public FsmColor debugLineColor;

[Tooltip("Repeat every frame.")]
public bool everyFrame = true;

private GameObject go;

private Vector3 lookAtPos;



public override void Reset()
{
gameObject = null;

vector2Target = null;
vector3Target = new FsmVector3() {UseVariable=true};

debug = false;
debugLineColor = Color.green;
everyFrame = true;
}

public override void OnEnter()
{
DoLookAt();

if (!everyFrame)
{
Finish();
}
}

public override void OnUpdate()
{
DoLookAt();
}

void DoLookAt()
{
go = Fsm.GetOwnerDefaultTarget(gameObject);

if (go == null)
{
return;
}

Vector3 target = new Vector3(vector2Target.Value.x,vector2Target.Value.y,0f);
if (!vector3Target.IsNone)
{
target += vector3Target.Value;
}

Vector3 diff = target - go.transform.position;
diff.Normalize();


float rot_z = Mathf.Atan2(diff.y, diff.x) * Mathf.Rad2Deg;
go.transform.rotation = Quaternion.Euler(0f, 0f, rot_z - rotationOffset.Value);

if (debug.Value)
{
Debug.DrawLine(go.transform.position, target, debugLineColor.Value);
}

}

}
}

Could anyone help or hint another way to do things .

I am trying to rotate a gun mounted on 2d ship that rotates in Z axis  .
But I want to limit guns rotation to some degree
I am using mouse position to rotate the gun.

thanks

Title: Re: Limiting rotation of Look At 2d
Post by: jeanfabre on December 02, 2014, 02:54:39 AM

Hi,

 Ok, I made the clamping, there will be two new action

LookAt2dClamped (https://github.com/jeanfabre/PlayMakerCustomActions_U4/blob/master/Assets/PlayMaker%20Custom%20Actions/Transform/LookAt2dClamped.cs)
LookAt2dGameObjectClamped (https://github.com/jeanfabre/PlayMakerCustomActions_U4/blob/master/Assets/PlayMaker%20Custom%20Actions/Transform/LookAt2dGameObjectClamped.cs)


You c an get them from the Ecosystem (https://hutonggames.fogbugz.com/default.asp?W1181) as well.

 Bye,

 Jean