From 5b198d7b315bcf3af323c2f343321640ae1c7d6c Mon Sep 17 00:00:00 2001
From: str1k3r <115313679+S1l3ntStr1ke87@users.noreply.github.com>
Date: Sat, 26 Sep 2026 14:46:10 -0400
Subject: [PATCH] feat: Java Crosshair Inversion

---
 Minecraft.Client/Gui.cpp | 81 +++++++++++++++++++---------------------
 Minecraft.Client/Gui.h   |  2 +-
 README.md                |  2 +-
 3 files changed, 41 insertions(+), 44 deletions(-)

diff --git a/Minecraft.Client/Gui.cpp b/Minecraft.Client/Gui.cpp
index 5b54e0e1..90b78535 100644
--- a/Minecraft.Client/Gui.cpp
+++ b/Minecraft.Client/Gui.cpp
@@ -331,7 +331,7 @@ void Gui::render(float a, bool mouseFree, int xMouse, int yMouse)
 			glEnable(GL_BLEND);
 			RenderManager.StateSetBlendFactor(0xffffff |(((unsigned int)fVal)<<24));
 			glBlendFunc(GL_CONSTANT_ALPHA, GL_ONE_MINUS_CONSTANT_ALPHA);
-			//glBlendFunc(GL_ONE_MINUS_DST_COLOR, GL_ONE_MINUS_SRC_COLOR);
+			glBlendFunc(GL_ONE_MINUS_DST_COLOR, GL_ONE_MINUS_SRC_COLOR);
 			// 4J Stu - We don't want to adjust the cursor by the safezone, we want it centred
 			if(bTwoPlayerSplitscreen)
 			{
@@ -341,7 +341,6 @@ void Gui::render(float a, bool mouseFree, int xMouse, int yMouse)
 			{
 				blit(screenWidth / 2 - 7, screenHeight / 2 - 7, 0, 0, 16, 16);
 			}
-			glDisable(GL_BLEND);
 
 	// 		if(bTwoPlayerSplitscreen)
 	// 		{
@@ -356,10 +355,10 @@ void Gui::render(float a, bool mouseFree, int xMouse, int yMouse)
 		int iLastHealth = minecraft->player->lastHealth;
 		random->setSeed(tickCount * 312871);
 
-// 		if (false) //(true) 
-// 		{
-// 			renderBossHealth();
-// 		}
+ 		if (EnderDragonRenderer::bossInstance != NULL)
+ 		{
+ 			renderBossHealth();
+ 		}
 
 		/////////////////////////////////////////////////////////////////////////////////////
 		// Display the experience, food, armour, health and the air bubbles 
@@ -473,8 +472,6 @@ void Gui::render(float a, bool mouseFree, int xMouse, int yMouse)
 		////////////////////////////
 		if(bDisplayGui)
 		{
-	//		glDisable(GL_BLEND);		4J - removed - we want to be able to fade our gui
-
 			glEnable(GL_RESCALE_NORMAL);
 
 			Lighting::turnOnGui();
@@ -962,40 +959,40 @@ void Gui::render(float a, bool mouseFree, int xMouse, int yMouse)
 	glEnable(GL_ALPHA_TEST);
 }
 
-// Moved to the xui base scene
-// void Gui::renderBossHealth(void)
-// {
-// 	if (EnderDragonRenderer::bossInstance == NULL) return;
-// 
-// 	shared_ptr<EnderDragon> boss = EnderDragonRenderer::bossInstance;
-// 	EnderDragonRenderer::bossInstance = NULL;
-// 
-// 	Minecraft *pMinecraft=Minecraft::GetInstance();
-// 
-// 	Font *font = pMinecraft->font;
-// 
-// 	ScreenSizeCalculator ssc(pMinecraft->options, pMinecraft->width_phys, pMinecraft->height_phys);
-// 	int screenWidth = ssc.getWidth();
-// 
-// 	int w = 182;
-// 	int xLeft = screenWidth / 2 - w / 2;
-// 
-// 	int progress = (int) (boss->getSynchedHealth() / (float) boss->getMaxHealth() * (float) (w + 1));
-// 
-// 	int yo = 12;
-// 	blit(xLeft, yo, 0, 74, w, 5);
-// 	blit(xLeft, yo, 0, 74, w, 5);
-// 	if (progress > 0) 
-// 	{
-// 		blit(xLeft, yo, 0, 79, progress, 5);
-// 	}
-// 
-// 	wstring msg = L"Boss health - NON LOCALISED";
-// 	font->drawShadow(msg, screenWidth / 2 - font->width(msg) / 2, yo - 10, 0xff00ff);
-// 	glColor4f(1, 1, 1, 1);
-// 	glBindTexture(GL_TEXTURE_2D, pMinecraft->textures->loadTexture(TN_GUI_ICONS) );//"/gui/icons.png"));
-// 
-// }
+#if RENDER_HUD
+void Gui::renderBossHealth(void)
+{
+	if (EnderDragonRenderer::bossInstance == NULL) return;
+ 
+	shared_ptr<EnderDragon> boss = EnderDragonRenderer::bossInstance;
+	EnderDragonRenderer::bossInstance = NULL;
+ 
+	Minecraft *pMinecraft=Minecraft::GetInstance();
+ 
+	Font *font = pMinecraft->font;
+
+ 	ScreenSizeCalculator ssc(pMinecraft->options, pMinecraft->width_phys, pMinecraft->height_phys);
+ 	int screenWidth = ssc.getWidth();
+ 
+ 	int w = 182;
+ 	int xLeft = screenWidth / 2 - w / 2;
+ 
+ 	int progress = (int) (boss->getSynchedHealth() / (float) boss->getMaxHealth() * (float) (w + 1));
+ 
+	int yo = 12;
+	blit(xLeft, yo, 0, 74, w, 5);
+	blit(xLeft, yo, 0, 74, w, 5);
+	if (progress > 0) 
+ 	{
+ 		blit(xLeft, yo, 0, 79, progress, 5);
+ 	}
+ 
+ 	wstring msg = app.GetString(IDS_BOSS_ENDERDRAGON_HEALTH);
+ 	font->drawShadow(msg, screenWidth / 2 - font->width(msg) / 2, yo - 10, 0xff00ff);
+ 	glColor4f(1, 1, 1, 1);
+ 	glBindTexture(GL_TEXTURE_2D, pMinecraft->textures->loadTexture(TN_GUI_ICONS) );//"/gui/icons.png"));
+}
+#endif
 
 void Gui::renderPumpkin(int w, int h)
 {
diff --git a/Minecraft.Client/Gui.h b/Minecraft.Client/Gui.h
index 41762016..287e3408 100644
--- a/Minecraft.Client/Gui.h
+++ b/Minecraft.Client/Gui.h
@@ -42,7 +42,7 @@ public:
     float tbr;
 
 private:
-	//void renderBossHealth(void);
+	void renderBossHealth(void);
 	void renderPumpkin(int w, int h);
     void renderVignette(float br, int w, int h);
     void renderTp(float br, int w, int h);
diff --git a/README.md b/README.md
index a526e661..17365784 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ Bringing the October 10th 2014 Source Leak back down to TU0
 
 ## C++ Rendering
 - [x] Hotbar Rendering
-- [ ] Java Crosshair
+- [x] Java Crosshair Inversion
 
 ## b1.6.6 Features
 - [ ] Beta Lighting