GuiButtonArrow.java 文件源码

private void drawArrow(int x, int y, int colour)
{
    TextureUtils.changeTexture("wrcbe:textures/gui/arrow.png");

    new ColourARGB(colour).glColour();
    Tessellator t = Tessellator.getInstance();
    VertexBuffer buffer = t.getBuffer();
    buffer.begin(7, DefaultVertexFormats.POSITION_TEX);
    buffer.pos(x + 0, y + 8, zLevel).tex( arrowdirection * 0.25, 1).endVertex();
    buffer.pos(x + 8, y + 8, zLevel).tex( (arrowdirection + 1) * 0.25, 1).endVertex();
    buffer.pos(x + 8, y + 0, zLevel).tex( (arrowdirection + 1) * 0.25, 0).endVertex();
    buffer.pos(x + 0, y + 0, zLevel).tex( arrowdirection * 0.25, 0).endVertex();
    t.draw();
}