Implemented MOSprite:GetPixelIndex(), implemented first take on MOSprite:GetAllPixelPositions()

Author: comradeshook

Source/Entities/MOSprite.cpp

@@ -351,6 +351,23 @@ Vector MOSprite::UnRotateOffset(const Vector& offset) const {
 	return rotOff;
 }
 
+std::vector<Vector>* MOSprite::GetAllPixelPositions(const Vector& origin, float angle, bool hflipped, bool includeTransparency, unsigned int whichFrame) {
+	std::vector<Vector>* posList = new std::vector<Vector>();
+	CLAMP(m_FrameCount - 1, 0, whichFrame);
+	BITMAP* sprite = m_aSprite[whichFrame];
+	for (int y = 0; y < GetSpriteHeight(); y++) {
+		for (int x = 0; x < GetSpriteWidth(); x++) {
+			int pixelIndex = GetPixelIndex(x, y, whichFrame);
+			if (includeTransparency || pixelIndex > 0) {
+				Vector pixelPos = (Vector(x, y) + m_SpriteOffset).FlipX(hflipped).RadRotate(angle) + origin;
+				posList->push_back(pixelPos.GetRounded());
+			}
+		}
+	}
+
+	return posList;
+}
+
 void MOSprite::Update() {
 	MovableObject::Update();
 

Source/Entities/MOSprite.h

@@ -90,6 +90,10 @@ namespace RTE {
 		/// Ownership is NOT transferred!
 		BITMAP* GetSpriteFrame(unsigned int whichFrame = 0) const { return (whichFrame < m_FrameCount) ? m_aSprite[whichFrame] : 0; }
 
+		int GetPixelIndex(int x, int y, unsigned int whichFrame = 0) const { return getpixel(m_aSprite[CLAMP(m_FrameCount - 1, 0, whichFrame)], x, y); }
+
+		std::vector<Vector>* GetAllPixelPositions(const Vector& origin, float angle, bool hflipped, bool includeTransparency, unsigned int whichFrame);
+
 		/// Gets the width of the bitmap of this MOSprite
 		/// @return Sprite width if loaded.
 		int GetSpriteWidth() const { return m_aSprite[0] ? m_aSprite[0]->w : 0; }

Source/Lua/LuaBindingsEntities.cpp

@@ -836,6 +836,8 @@ LuaBindingRegisterFunctionDefinitionForType(EntityLuaBindings, MOSprite) {
 	    .def("SetExitWound", &MOSprite::SetExitWound)
 	    .def("GetEntryWoundPresetName", &MOSprite::GetEntryWoundPresetName)
 	    .def("GetExitWoundPresetName", &MOSprite::GetExitWoundPresetName)
+	    .def("GetPixelIndex", &MOSprite::GetPixelIndex)
+	    .def("GetAllPixelPositions", &MOSprite::GetAllPixelPositions, luabind::return_stl_iterator)
 
 	    .enum_("SpriteAnimMode")[luabind::value("NOANIM", SpriteAnimMode::NOANIM),
 	                             luabind::value("ALWAYSLOOP", SpriteAnimMode::ALWAYSLOOP),