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Vector3 operators

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jeanfabre:
Hi,

Wanted to add two vectors together and store it in a third vector, but did not find any actions to do so ( like the float operator), so rolled one.

 You can do the following:
Dot product,
Cross product,
Distance,
Angle,
Project,
Reflect,
Add,
Subtract,
Multiply,
Divide,
Min,
Max

Suggestions and/or comments welcomed :)




--- Code: ---// (c) Copyright HutongGames, LLC 2010-2011. All rights reserved.

using UnityEngine;

namespace HutongGames.PlayMaker.Actions
{
[ActionCategory(ActionCategory.Vector3)]
[Tooltip("Performs most possible operations on 2 Vector3: Dot product, Cross product,Distance,Angle,Project,Reflect, Add, Subtract, Multiply, Divide, Min, Max")]
public class Vector3Operator : FsmStateAction
{
public enum Vector3Operation
{
DotProduct,
CrossProduct,
Distance,
Angle,
Project,
Reflect,
Add,
Subtract,
Multiply,
Divide,
Min,
Max
}

[RequiredField]
public FsmVector3 vector1;
[RequiredField]
public FsmVector3 vector2;
public Vector3Operation operation = Vector3Operation.Add;

[UIHint(UIHint.Variable)]
public FsmVector3 storeVector3Result;

[UIHint(UIHint.Variable)]
public FsmFloat storeFloatResult;

public bool everyFrame;

public override void Reset()
{
vector1 = null;
vector2 = null;
operation = Vector3Operation.Add;
storeVector3Result = null;
storeFloatResult = null;
everyFrame = false;
}

public override void OnEnter()
{
DoVector3Operator();

if (!everyFrame)
Finish();
}

public override void OnUpdate()
{
DoVector3Operator();
}

void DoVector3Operator()
{
Vector3 v1 = vector1.Value;
Vector3 v2 = vector2.Value;

switch (operation)
{
case Vector3Operation.DotProduct:
storeFloatResult.Value = Vector3.Dot(v1,v2);
break;

case Vector3Operation.CrossProduct:
storeVector3Result.Value = Vector3.Cross(v1,v2);
break;

case Vector3Operation.Distance:
storeFloatResult.Value = Vector3.Distance(v1,v2);
break;

case Vector3Operation.Angle:
storeFloatResult.Value = Vector3.Angle(v1,v2);
break;

case Vector3Operation.Project:
storeVector3Result.Value = Vector3.Project(v1,v2);
break;

case Vector3Operation.Reflect:
storeVector3Result.Value = Vector3.Reflect(v1,v2);
break;

case Vector3Operation.Add:
storeVector3Result.Value = v1 + v2;
break;

case Vector3Operation.Subtract:
storeVector3Result.Value = v1 - v2;
break;

case Vector3Operation.Multiply:
// I know... this is a far reach and not usefull in 99% of cases.
// I do use it when I use vector3 as arrays recipients holding something else than a position in space.
Vector3 multResult = Vector3.zero;
multResult.x = v1.x * v2.x;
multResult.y = v1.y * v2.y;
multResult.z = v1.z * v2.z;
storeVector3Result.Value = multResult;
break;

case Vector3Operation.Divide: // I know... this is a far reach and not usefull in 99% of cases.
// I do use it when I use vector3 as arrays recipients holding something else than a position in space.
Vector3 divResult = Vector3.zero;
divResult.x = v1.x / v2.x;
divResult.y = v1.y / v2.y;
divResult.z = v1.z / v2.z;
storeVector3Result.Value = divResult;
break;

case Vector3Operation.Min:
storeVector3Result.Value = Vector3.Min(v1, v2);
break;

case Vector3Operation.Max:
storeVector3Result.Value = Vector3.Max(v1, v2);
break;

default:
break;
}
}
}
}
--- End code ---

tobbeo:
Very nice, thank you Jean!

MaDDoX:
Ah, the joy of non-state-branching actions ^_^

Thanks Jean, very very handy!

giyomu:
ah a bit late but thanks jean , very handy  :)

jeanfabre:
Hi,

  I noticed ( thanks to markinjapan) that the vector 3 operator action has an issue. It requires a the vector result field, but in some cases is actually not required, so this needs to be lifted.

 I have updated the code of this post ( basically removed the Required flag on that vector and the       [UIHint(UIHint.Variable)] as well, because that is wrong too in this context).

 Alex, if you are ok with the change, you might be able to squeeze that for 1.2.1

Bye,

Jean

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