koobas.hobune.stream
nor detecting the pixel of a given color
I am trying to find the grey pixels in an image. The image has exactly 6 of them. the image is here
This is my code.
void GetPlayerSpawnPoints ( Texture2D imageMap )
{
Color PlayerColor = new Color(0.5f, 0.5f, 0.5f, 1f);
for ( int x = 0; x < imageMap.width; x++ )
{
for ( int y = 0; y < imageMap.height; y++ )
{
//GetSpawnPoints ( x, y, imageMap );
Color pixelColor = imageMap.GetPixel(x, y);
// is the pixel grey?
if ( pixelColor == PlayerColor )
{
playerSpawnPoints.Add ( new PlayerSpawnData ( x + ( mapOffsetX * imageMap.width ), y + ( mapOffsetY * imageMap.height ) ) );
Debug.Log ( "FOUND" );
}
}
}
}
For some reason, the code does not find the grey pixel but it does find the black and the blue ones. Can someone help, please.
Well, colors in your texture are most likely stored in Color32 format (most commonly not true for HDR textures or some special formats). So GetPixel() does a conversion from byte to float, which quite possibly means that your color channel is never exactly 0.5f. Basically, hoping that two floats whose values have different origins (are not a copy of each other) is always naive. You could include some value tolerance, compare Color32 instead of color (using GetPixel32() ) etc
When I use Color32 I can't use the x, y coordinates of the tile. I am doing this another way. Thanks for your response.
What does it have to do with tiles? Just ins$$anonymous$$d of texture.GetPixel(), use texture.GetPixel32() And of course, change variable type from Color to Color32
@Panga$$anonymous$$i, I changed the code on your advice to void GetSpawnPoints ( Texture2D image$$anonymous$$ap ) { Color PlayerColor = new Color(1, 1, 0, 1);
for ( int x = 0; x < image$$anonymous$$ap.width; x++ )
{
for ( int y = 0; y < image$$anonymous$$ap.height; y++ )
{
//GetSpawnPoints ( x, y, image$$anonymous$$ap );
Color32 pixelColor = image$$anonymous$$ap.GetPixel(x, y);
Debug.Log ( pixelColor );
// is the pixel yellow?
if ( pixelColor == PlayerColor )
{
Debug.Log ( pixelColor );
playerSpawnPoints.Add ( new PlayerSpawnData ( x + ( mapOffsetX * image$$anonymous$$ap.width ), y + ( mapOffsetY * image$$anonymous$$ap.height ) ) );
Debug.Log ( "FOUND" );
}
}
}
}
Now it works. Thank you.
