Minimap.java 文件源码

public static void initColors() {
        final Minecraft mc = Minecraft.getMinecraft();
        TextureManager mgr = mc.getTextureManager();
        mgr.bindTexture(TextureMap.locationBlocksTexture);
        final int w = GL11.glGetTexLevelParameteri(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH);
        final int h = GL11.glGetTexLevelParameteri(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT);
        final IntBuffer buf = BufferUtils.createIntBuffer(w * h);
        GL11.glGetTexImage(GL_TEXTURE_2D, 0, GL12.GL_BGRA, GL12.GL_UNSIGNED_INT_8_8_8_8_REV, buf);



        Thread th = new Thread() {
            public void run() {
                Map<Block, int[]> colmap = new HashMap<Block, int[]>();
                List<ResourceLocation> blocks = new ArrayList<ResourceLocation>();
                blocks.addAll(Block.blockRegistry.getKeys());

                BlockModelShapes blkShapes = mc.getBlockRendererDispatcher().getBlockModelShapes();
                for (ResourceLocation b_loc : blocks) {
                    Block b = (Block) Block.blockRegistry.getObject(b_loc);
                    int[] colors = new int[16];
                    for (int d = 0; d < 16; d++) {
                        try {
                            IBlockState state = b.getStateFromMeta(d);
                            TextureAtlasSprite spt = blkShapes.getTexture(state);
//                            IIcon ico = b.func_149735_b(1, d);
//                            IResource res = Minecraft.getMinecraft().getResourceManager().getResource(new ResourceLocation("minecraft", "textures/blocks/" + ico.getIconName() + ".png"));
//                            InputStream in = res.getInputStream();
//                            Bitmap img = Bitmap.load(in);
//                            in.close();
                            long rt = 0;
                            long gt = 0;
                            long bt = 0;
                            long div = 0;


                            int x = spt.getOriginX();
                            int y = spt.getOriginY();
                            int sw = spt.getIconWidth();
                            int sh = spt.getIconHeight();
                            for (int yy = 0; yy < sh; yy++) {
                                for (int xx = 0; xx < sw; xx++) {
                                    int color = buf.get((xx + x) + (yy + y) * w);
                                    int a = color >>> 24;
                                    if (a != 0) {
                                        rt += (color >> 16) & 0xFF;
                                        gt += (color >> 8) & 0xFF;
                                        bt += color & 0xFF;
                                        div++;
                                    }
                                }
                            }

                            rt /= div;
                            gt /= div;
                            bt /= div;
                            colors[d] = 0xFF000000 | ((int)rt & 0xFF) << 16 | ((int)gt & 0xFF) << 8 | ((int)bt & 0xFF);
                        } catch (Exception e) {
                            colors[d] = 0xFF000000;
                        }
                    }
                    colmap.put(b, colors);
                }
                colorMap = colmap;
            }
        };
        th.start();
    }