playMaker

Author Topic: Count Colored Pixels In Textures  (Read 165 times)

looi

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Count Colored Pixels In Textures
« on: June 06, 2019, 10:00:45 AM »
Hello!

I've done a new action. It counts the number of a certain color pixels in a texture. Any changes or suggestions to improve performance or functionality it are more than welcome!

 (Note: part of the code I have taken from https://hutonggames.com/playmakerforum/index.php?topic=11929.0 )

 
Code: [Select]
using UnityEngine;
using System;
using System.Collections;
using System.Collections.Generic;

namespace HutongGames.PlayMaker.Actions
{
[ActionCategory("ArrayMaker/ArrayList")]
[Tooltip("Count the number of pixels of a certain color")]
[HelpUrl("http://hutonggames.com/playmakerforum/index.php?topic=11929.0")]

public class CountColoredPixelsInTextures : ArrayListActions
{

[ActionSection("Input")]
public FsmTexture texture;
        public FsmColor colorToCount;

        [RequiredField]
        [UIHint(UIHint.Variable)]
        public FsmInt storeResult;

        [ActionSection("Event")]
[UIHint(UIHint.FsmEvent)]
public FsmEvent doneEvent;
[UIHint(UIHint.FsmEvent)]
[Tooltip("The event if error")]
public FsmEvent failureEvent;

private Color[] pix;
        private Texture2D targetmaskedTexture;
public override void Reset()
{
            storeResult = null;
failureEvent = null;
doneEvent= null;
texture = null;
}

public override void OnEnter()
{

bool noError = false;

if (texture.IsNone){
Debug.LogWarning("<color=#6B8E23ff>No texture. Please review!</color>", this.Owner);
noError = true;
}

targetmaskedTexture = null;
targetmaskedTexture = texture.Value as Texture2D;

try
{
targetmaskedTexture.GetPixel(0, 0);
}
catch(UnityException)
{

Debug.LogWarning("<color=#6B8E23ff>Please enable read/write on texture  </color>"+"[" + texture.Value.name + "]", this.Owner);
noError = true;
}

if (noError == true){
Fsm.Event(failureEvent);
return;
            }
            else {
                storeResult.Value = 0;
                pix = targetmaskedTexture.GetPixels(0);

                for (int i = 0; i < pix.Length; i++)
                {
                    if (colorToCount.Value == pix[i]) {
                        storeResult.Value = storeResult.Value + 1;
                        }
                }
                pix = new Color[0];

            }

Fsm.Event(doneEvent);
            return;
}
}
}