for c port fix /tp crash, hotbar scroll not working, projection matrix being stuffed, entity movement looking laggy

OpenTK/Math/Matrix4.cs

@@ -228,5 +228,10 @@ namespace OpenTK {
 			return Row0 == other.Row0 && Row1 == other.Row1 &&
 				Row2 == other.Row2 && Row3 == other.Row3;
 		}
+		
+		public override string ToString() {
+			return string.Format("Row0={0},\r\n Row1={1},\r\n Row2={2},\r\n Row3={3}]", Row0, Row1, Row2, Row3);
+		}
+
 	}
 }

src/Client/Entity.c

@@ -26,6 +26,7 @@ const UInt8* ShadowMode_Names[SHADOW_MODE_COUNT] = { "None", "SnapToBlock", "Cir
 *-----------------------------------------------------LocationUpdate------------------------------------------------------*
 *#########################################################################################################################*/
 Real32 LocationUpdate_Clamp(Real32 degrees) {
+	if (degrees == MATH_POS_INF) return MATH_POS_INF;
 	degrees = Math_ModF(degrees, 360.0f);
 	if (degrees < 0) degrees += 360.0f;
 	return degrees;

src/Client/Game.c

@@ -42,7 +42,7 @@
 IGameComponent Game_Components[26];
 Int32 Game_ComponentsCount;
 ScheduledTask Game_Tasks[6];
-Int32 Game_TasksCount;
+Int32 Game_TasksCount, entTaskI;
 
 UInt8 Game_UsernameBuffer[String_BufferSize(STRING_SIZE)];
 extern String Game_Username = String_FromEmptyArray(Game_UsernameBuffer);
@@ -61,13 +61,13 @@ void Game_AddComponent(IGameComponent* comp) {
 	Game_Components[Game_ComponentsCount++] = *comp;
 }
 
-ScheduledTask ScheduledTask_Add(Real64 interval, ScheduledTaskCallback callback) {
+Int32 ScheduledTask_Add(Real64 interval, ScheduledTaskCallback callback) {
 	ScheduledTask task = { 0.0, interval, callback };
 	if (Game_TasksCount == Array_Elems(Game_Tasks)) {
 		ErrorHandler_Fail("ScheduledTask_Add - hit max count");
 	}
 	Game_Tasks[Game_TasksCount++] = task;
-	return task;
+	return Game_TasksCount - 1;
 }
 
 
@@ -390,14 +390,13 @@ void Game_LoadGuiOptions(void) {
 	/* TODO: Handle Arial font not working */
 }
 
-ScheduledTask entTask;
 void Game_InitScheduledTasks(void) {
 	#define GAME_DEF_TICKS (1.0 / 20)
 	#define GAME_NET_TICKS (1.0 / 60)
 
 	ScheduledTask_Add(30, AsyncDownloader_PurgeOldEntriesTask);
 	ScheduledTask_Add(GAME_NET_TICKS, ServerConnection_Tick);
-	entTask = ScheduledTask_Add(GAME_DEF_TICKS, Entities_Tick);
+	entTaskI = ScheduledTask_Add(GAME_DEF_TICKS, Entities_Tick);
 
 	ScheduledTask_Add(GAME_DEF_TICKS, Particles_Tick);
 	ScheduledTask_Add(GAME_DEF_TICKS, Animations_Tick);
@@ -672,6 +671,7 @@ void Game_RenderFrame(Real64 delta) {
 	}
 
 	Game_DoScheduledTasks(delta);
+	ScheduledTask entTask = Game_Tasks[entTaskI];
 	Real32 t = (Real32)(entTask.Accumulator / entTask.Interval);
 	LocalPlayer_SetInterpPosition(t);
 

src/Client/GameStructs.h

@@ -35,5 +35,5 @@ typedef struct ScheduledTask_ {
 } ScheduledTask;
 
 typedef void (*ScheduledTaskCallback)(ScheduledTask* task);
-ScheduledTask ScheduledTask_Add(Real64 interval, ScheduledTaskCallback callback);
+Int32 ScheduledTask_Add(Real64 interval, ScheduledTaskCallback callback);
 #endif

src/Client/Vectors.c

@@ -257,6 +257,7 @@ void Matrix_PerspectiveFieldOfView(Matrix* result, Real32 fovy, Real32 aspect, R
 void Matrix_PerspectiveOffCenter(Matrix* result, Real32 left, Real32 right, Real32 bottom, Real32 top, Real32 zNear, Real32 zFar) {
 	/* Transposed, source https://msdn.microsoft.com/en-us/library/dd373537(v=vs.85).aspx */
 	*result = Matrix_Identity;
+	result->Row3.W = 0.0f;
 
 	result->Row0.X = (2.0f * zNear) / (right - left);
 	result->Row1.Y = (2.0f * zNear) / (top - bottom);

src/Client/WinWindow.c

@@ -293,7 +293,7 @@ LRESULT CALLBACK Window_Procedure(HWND handle, UINT message, WPARAM wParam, LPAR
 		break;
 
 	case WM_MOUSEWHEEL:
-		wheel_delta = HIWORD(wParam) / (Real32)WHEEL_DELTA;
+		wheel_delta = ((short)HIWORD(wParam)) / (Real32)WHEEL_DELTA;
 		Mouse_SetWheel(Mouse_Wheel + wheel_delta);
 		return 0;