package codechicken.lib.render;
import codechicken.lib.render.TextureUtils.IIconSelfRegister;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.renderer.texture.IIconRegister;
import net.minecraft.client.renderer.texture.TextureMap;
import net.minecraft.util.IIcon;
import net.minecraft.util.ResourceLocation;
import java.util.ArrayList;
import java.util.HashMap;
public class SpriteSheetManager
{
@SideOnly(Side.CLIENT)
public static class SpriteSheet implements IIconSelfRegister
{
private int tilesX;
private int tilesY;
private ArrayList<Integer> newSprites = new ArrayList<Integer>();
private TextureSpecial[] sprites;
private ResourceLocation resource;
private TextureDataHolder texture;
private int spriteWidth;
private int spriteHeight;
public int atlasIndex;
private SpriteSheet(int tilesX, int tilesY, ResourceLocation textureFile)
{
this.tilesX = tilesX;
this.tilesY = tilesY;
this.resource = textureFile;
sprites = new TextureSpecial[tilesX*tilesY];
}
public void requestIndicies(int... indicies)
{
for(int i : indicies)
setupSprite(i);
}
public void registerIcons(IIconRegister register)
{
TextureMap textureMap = (TextureMap)register;
if(TextureUtils.refreshTexture(textureMap, resource.getResourcePath()))
{
reloadTexture();
for(int i = 0; i < sprites.length; i++)
if(sprites[i] != null)
textureMap.setTextureEntry(sprites[i].getIconName(), sprites[i]);
}
else
{
for(int i : newSprites)
textureMap.setTextureEntry(sprites[i].getIconName(), sprites[i]);
}
newSprites.clear();
}
public TextureSpecial setupSprite(int i)
{
if(sprites[i] == null)
{
String name = resource+"_"+i;
sprites[i] = new TextureSpecial(name).baseFromSheet(this, i);
newSprites.add(i);
}
return sprites[i];
}
private void reloadTexture()
{
texture = TextureUtils.loadTexture(resource);
spriteWidth = texture.width/tilesX;
spriteHeight = texture.height/tilesY;
}
public IIcon getSprite(int index)
{
IIcon i = sprites[index];
if(i == null)
throw new IllegalArgumentException("Sprite at index: "+index+" from texture file "+resource+" was not preloaded.");
return i;
}
public TextureDataHolder createSprite(int spriteIndex)
{
int sx = spriteIndex%tilesX;
int sy = spriteIndex/tilesX;
TextureDataHolder sprite = new TextureDataHolder(spriteWidth, spriteHeight);
TextureUtils.copySubImg(texture.data, texture.width, sx*spriteWidth, sy*spriteHeight,
spriteWidth, spriteHeight,
sprite.data, spriteWidth, 0, 0);
return sprite;
}
public int spriteWidth()
{
return spriteWidth;
}
public int spriteHeight()
{
return spriteHeight;
}
public TextureSpecial bindTextureFX(int i, TextureFX textureFX)
{
return setupSprite(i).addTextureFX(textureFX);
}
public SpriteSheet selfRegister(int atlas)
{
TextureUtils.addIconRegistrar(this);
return this;
}
@Override
public int atlasIndex()
{
return atlasIndex;
}
}
private static HashMap<String, SpriteSheet> spriteSheets = new HashMap<String, SpriteSheet>();
public static SpriteSheet getSheet(ResourceLocation resource)
{
return getSheet(16, 16, resource);
}
public static SpriteSheet getSheet(int tilesX, int tilesY, ResourceLocation resource)
{
SpriteSheet sheet = spriteSheets.get(resource.toString());
if(sheet == null)
spriteSheets.put(resource.toString(), sheet = new SpriteSheet(tilesX, tilesY, resource));
return sheet;
}
}