// Called with new atlas. Guesses the appropriate transparency type for
// the atlas and select the shader based on this.
private void PrepNewTexture()
{
if (!AutoOptimizeImages && !AutoGuessTransparency && !AutoGuessLayout)
{
return;
}
// Grab values to check against
var atlas = Atlas as Texture2D;
if (atlas == null)
{
return;
}
if (GetComponent <Renderer>() == null)
{
return;
}
Material material = GetComponent <Renderer>().sharedMaterial;
if (material == null)
{
return;
}
TextureSettings.AddTemporaryReadableToTexture(atlas);
// Optimize texture properties
if (AutoOptimizeImages)
{
TextureSettings.SetAtlasAsOptimalForBbSprite(Atlas);
}
// Determine which shader to use
if (AutoGuessTransparency)
{
if (atlas.GetPixel(0, 0).a != 1)
{
material.shader = Shader.Find("Sprites/BbSprites/Alpha");
}
else
{
Shader defaultColorShader =
Shader.Find("Sprites/BbSprites/ColorKey_UL");
if (
material.shader != defaultColorShader &&
material.shader !=
Shader.Find("Sprites/BbSprites/ColorKey_UR") &&
material.shader !=
Shader.Find("Sprites/BbSprites/ColorKey_LL") &&
material.shader !=
Shader.Find("Sprites/BbSprites/ColorKey_LR") &&
material.shader !=
Shader.Find("Sprites/BbSprites/ColorKey_Custom"))
{
material.shader = defaultColorShader;
}
}
}
// Determine which layout type to use
if (AutoGuessLayout)
{
var layout = GetComponent <BbSpriteLayout>();
if (layout == null)
{
return;
}
var width = atlas.width;
var hasKeyColor =
(material.shader != Shader.Find("Sprites/BbSprites/Alpha"));
// check for rpgmaker
if (
!TextureSettings.CheckTextureColumnForOpacity(
atlas, (int)(width * .33333f), hasKeyColor) &&
!TextureSettings.CheckTextureColumnForOpacity(
atlas, (int)(width * .66666f), hasKeyColor)
)
{
layout.MyType = BbSpriteLayout.Type.RpgMaker;
layout.Update();
}
// check for 4 by 4
else if (
!TextureSettings.CheckTextureColumnForOpacity(
atlas, (int)(width * .5f), hasKeyColor) &&
!TextureSettings.CheckTextureColumnForOpacity(
atlas, (int)(width * .25f), hasKeyColor) &&
!TextureSettings.CheckTextureColumnForOpacity(
atlas, (int)(width * .75f), hasKeyColor)
)
{
layout.MyType = BbSpriteLayout.Type.FourByFour;
layout.Update();
}
// If failed other checks, is single cell
else
{
layout.MyType = BbSpriteLayout.Type.SingleCell;
layout.Update();
}
}
TextureSettings.RemoveTemporaryReadableFromTexture(atlas);
}