CatServer/patches/net/minecraft/client/gui/GuiBossOverlay.java.patch

--- ../src-base/minecraft/net/minecraft/client/gui/GuiBossOverlay.java
+++ ../src-work/minecraft/net/minecraft/client/gui/GuiBossOverlay.java
@@ -34,13 +34,18 @@
             for (BossInfoClient bossinfoclient : this.mapBossInfos.values())
             {
                 int k = i / 2 - 91;
+                net.minecraftforge.client.event.RenderGameOverlayEvent.BossInfo event =
+                        net.minecraftforge.client.ForgeHooksClient.bossBarRenderPre(scaledresolution, bossinfoclient, k, j, 10 + this.client.fontRenderer.FONT_HEIGHT);
+                if (!event.isCanceled()) {
                 GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
                 this.client.getTextureManager().bindTexture(GUI_BARS_TEXTURES);
                 this.render(k, j, bossinfoclient);
                 String s = bossinfoclient.getName().getFormattedText();
                 this.client.fontRenderer.drawStringWithShadow(s, (float)(i / 2 - this.client.fontRenderer.getStringWidth(s) / 2), (float)(j - 9), 16777215);
-                j += 10 + this.client.fontRenderer.FONT_HEIGHT;
+                }
+                j += event.getIncrement();
 
+                net.minecraftforge.client.ForgeHooksClient.bossBarRenderPost(scaledresolution);
                 if (j >= scaledresolution.getScaledHeight() / 3)
                 {
                     break;