TerminalRenderer.java 文件源码

public TerminalRenderer(RenderEngine engine, Tessellator buff) {
    this.render = engine;
    this.buff = buff;

    BufferedImage image;

    try {
        image = ImageIO.read(getClass().getResourceAsStream(
                "/font/default.png"));
    } catch (IOException e) {
        throw new RuntimeException();
    }

    int w = image.getWidth();
    int h = image.getHeight();

    int[] rgbData = new int[w * h];
    image.getRGB(0, 0, w, h, rgbData, 0, w);

    for (int chrIndex = 0; chrIndex < 256; chrIndex++) {
        int x = chrIndex % 16;
        int y = chrIndex / 16;

        int wide = 7;

        while (wide >= 0) {
            int baseIndex = x * 8 + wide;

            boolean isEmpty = true;

            for (int lY = 0; lY < 8; lY++) {
                int index = (y * 8 + lY) * w;

                if ((rgbData[baseIndex + index] & 0xFF) > 0) {
                    isEmpty = false;
                    break;
                }
            }

            if (!isEmpty)
                break;

            wide--;
        }

        if (chrIndex == 32) // Space is 2 wide
            wide = 2;

        charWidth[chrIndex] = (wide + 2);
    }

    // Fix control chars
    for (int index = 0xB0; index < 0xDF; index++)
        charWidth[index] = FONT_WIDTH;

    // Setup the texture
    charTexture = engine.allocateAndSetupTexture(image);
}