ClientEvents.java 文件源码

@SubscribeEvent
public static void onRenderHand(RenderSpecificHandEvent ev)
{
    EntityPlayer player = Minecraft.getMinecraft().player;
    if (!player.isSneaking() && ev.getItemStack().getItem() instanceof ItemParchment)
    {

        float f = player.getSwingProgress(ev.getPartialTicks());
        float f1 = player.prevRotationPitch
                + (player.rotationPitch - player.prevRotationPitch) * ev.getPartialTicks();

        ItemRenderer itemrenderer = Minecraft.getMinecraft().getItemRenderer();

        float prevEquipProgress = ev.getHand() == EnumHand.MAIN_HAND ? itemrenderer.prevEquippedProgressMainHand
                : itemrenderer.prevEquippedProgressOffHand;
        float equipProgress = ev.getHand() == EnumHand.MAIN_HAND ? itemrenderer.equippedProgressMainHand
                : itemrenderer.equippedProgressOffHand;
        float f5 = 1.0F - (prevEquipProgress + (equipProgress - prevEquipProgress) * ev.getPartialTicks());

        GlStateManager.pushMatrix();
        GlStateManager.pushAttrib();

        if (ev.getHand() == EnumHand.MAIN_HAND && player.getHeldItemOffhand().isEmpty())
        {
            GLHelper.renderParchmentFirstPerson(f1, f5, f, ev.getItemStack());
        } else
        {
            EnumHandSide enumhandside = ev.getHand() == EnumHand.MAIN_HAND ? player.getPrimaryHand()
                    : player.getPrimaryHand().opposite();
            GLHelper.renderParchmentFirstPersonSide(f5, enumhandside, f, ev.getItemStack());
        }

        GlStateManager.popAttrib();
        GlStateManager.popMatrix();
        ev.setCanceled(true);
    }
}