From 6f511b1d05d3e1668967a528b77a9e81e31b3c78 Mon Sep 17 00:00:00 2001
From: RealBadAngel <maciej.kasatkin@yahoo.com>
Date: Mon, 5 May 2014 07:45:20 +0200
Subject: [PATCH] Bugfix: make waypoints respect camera offset

---
 src/game.cpp | 2 +-
 src/hud.cpp  | 5 +++--
 src/hud.h    | 3 ++-
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/game.cpp b/src/game.cpp
index 51e97d61b..a9ca38d1d 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -3594,7 +3594,7 @@ void the_game(bool &kill, bool random_input, InputHandler *input,
 			Draw lua hud items
 		*/
 		if (show_hud)
-			hud.drawLuaElements();
+			hud.drawLuaElements(camera.getOffset());
 
 		/*
 			Draw gui
diff --git a/src/hud.cpp b/src/hud.cpp
index bbec4489e..c385211f2 100644
--- a/src/hud.cpp
+++ b/src/hud.cpp
@@ -46,7 +46,7 @@ Hud::Hud(video::IVideoDriver *driver, scene::ISceneManager* smgr,
 	this->gamedef     = gamedef;
 	this->player      = player;
 	this->inventory   = inventory;
-	
+
 	m_screensize       = v2u32(0, 0);
 	m_displaycenter    = v2s32(0, 0);
 	m_hotbar_imagesize = floor(HOTBAR_IMAGE_SIZE * porting::getDisplayDensity() + 0.5);
@@ -222,7 +222,7 @@ void Hud::drawItems(v2s32 upperleftpos, s32 itemcount, s32 offset,
 }
 
 
-void Hud::drawLuaElements() {
+void Hud::drawLuaElements(v3s16 camera_offset) {
 	for (size_t i = 0; i != player->hud.size(); i++) {
 		HudElement *e = player->hud[i];
 		if (!e)
@@ -277,6 +277,7 @@ void Hud::drawLuaElements() {
 				v3f w_pos = e->world_pos * BS;
 				float distance = floor(10 * p_pos.getDistanceFrom(e->world_pos)) / 10;
 				scene::ICameraSceneNode* camera = smgr->getActiveCamera();
+				w_pos -= intToFloat(camera_offset, BS);
 				core::matrix4 trans = camera->getProjectionMatrix();
 				trans *= camera->getViewMatrix();
 				f32 transformed_pos[4] = { w_pos.X, w_pos.Y, w_pos.Z, 1.0f };
diff --git a/src/hud.h b/src/hud.h
index 3897a850c..1ace6646f 100644
--- a/src/hud.h
+++ b/src/hud.h
@@ -115,6 +115,7 @@ public:
 	bool use_hotbar_image;
 	std::string hotbar_selected_image;
 	bool use_hotbar_selected_image;
+	v3s16 camera_offset;
 	
 	Hud(video::IVideoDriver *driver,scene::ISceneManager* smgr,
 		gui::IGUIEnvironment* guienv, gui::IGUIFont *font,
@@ -125,7 +126,7 @@ public:
 	void resizeHotbar();
 	void drawCrosshair();
 	void drawSelectionBoxes(std::vector<aabb3f> &hilightboxes);
-	void drawLuaElements();
+	void drawLuaElements(v3s16 camera_offset);
 private:
 	void drawStatbar(v2s32 pos, u16 corner, u16 drawdir,
 					 std::string texture, s32 count, v2s32 offset);