@SubscribeEvent
    public void onTick(RenderWorldLastEvent event) {
        /*
        if (!event.player.getEntityWorld().isRemote) return;
        EntityPlayerSP player = (EntityPlayerSP) event.player;
        */
        Minecraft mc = Minecraft.getMinecraft();
        EntityPlayerSP player = mc.thePlayer;
        Tessellator tessellator = Tessellator.getInstance();
        VertexBuffer renderer = tessellator.getBuffer();
        GlStateManager.disableTexture2D();
        GlStateManager.disableCull();
        GlStateManager.enableAlpha();
        GlStateManager.enableBlend();
        GlStateManager.pushMatrix();
        GlStateManager.translate(0 - player.posX, 0 - player.posY, 0 - player.posZ);
        renderer.begin(GL11.GL_QUADS, DefaultVertexFormats.POSITION_COLOR);
        renderer.pos(0,0,0).color(255, 255, 255, 125).endVertex();
        renderer.pos(0,100,0).color(255, 255, 255, 125).endVertex();
        renderer.pos(100,100,0).color(255, 255, 255, 125).endVertex();
        renderer.pos(100,0,0).color(255, 255, 255, 125).endVertex();
        tessellator.draw();
        GlStateManager.popMatrix();
        GlStateManager.enableTexture2D();
        GlStateManager.disableAlpha();
        GlStateManager.disableBlend();
    }