add missing funcs and use luasrc_pcall to call funcs so we dont crash

docs/general/conventions.md

@@ -87,6 +87,7 @@ Additionally, we use the following conventions:
     - `Ime` (short for input method editor)
     - `Init` (short for initialize)
     - `Json`, `Xml`, `Html`, `Css` and other data format/language names
+    - `Lerp` (short for linear interpolation)
     - `Obb` (short for oriented bounding box)
     - `Rgb`, `Rgba`, `Hsv`, `Hsl` and other color spaces
     - `Sqr` (short for square root)

game/experiment/addons/gmod_compatibility/scripts/lua/includes/modules/gmod_compatibility/sh_init.lua

@@ -249,6 +249,7 @@ Player = Players.FindByUserId
 PrecacheParticleSystem = ParticleSystems.Precache
 GetPredictionPlayer = Predictions.GetPredictionPlayer
 IsFirstTimePredicted = Predictions.IsFirstTimePredicted
+LerpAngle = Angles.Lerp
 LerpVector = Vectors.Lerp
 
 RecipientFilter = RecipientFilters.Create
@@ -630,6 +631,21 @@ ENTITY_META.SetColor = ENTITY_META.SetRenderColor
 ENTITY_META.GetColor = ENTITY_META.GetRenderColor
 ENTITY_META.GetSequenceList = ENTITY_META.GetSequences
 
+function ENTITY_META:GetForward()
+    local forward, _, _ = self:GetVectors()
+	return forward
+end
+
+function ENTITY_META:GetRight()
+    local _, right, _ = self:GetVectors()
+    return right
+end
+
+function ENTITY_META:GetUp()
+	local _, _, up = self:GetVectors()
+	return up
+end
+
 function ENTITY_META:GetDTAngle(index)
 	return self:GetNetworkDataValue(_E.NETWORK_VARIABLE_TYPE.ANGLE, index)
 end
@@ -1118,7 +1134,8 @@ else
 		SetMousePos = input.SetCursorPosition,
 		ScreenToVector = input.ScreenToWorld,
 		AimToVector = input.AimToVector,
-		IsConsoleVisible = Engines.IsConsoleVisible,
+        IsConsoleVisible = Engines.IsConsoleVisible,
+		IsGameUIVisible = EngineVgui.IsGameUiVisible,
 	}
 
 	cam = {
@@ -1291,7 +1308,9 @@ else
 
 	local LABEL_PANEL_META = FindMetaTable("Label")
 	LABEL_PANEL_META._OriginalSetFont = LABEL_PANEL_META._OriginalSetFont or LABEL_PANEL_META.SetFont
-	LABEL_PANEL_META._OriginalGetFont = LABEL_PANEL_META._OriginalGetFont or LABEL_PANEL_META.GetFont
+    LABEL_PANEL_META._OriginalGetFont = LABEL_PANEL_META._OriginalGetFont or LABEL_PANEL_META.GetFont
+    LABEL_PANEL_META.SetTextColor = LABEL_PANEL_META.SetForegroundColor
+	LABEL_PANEL_META.GetTextColor = LABEL_PANEL_META.GetForegroundColor
 	LABEL_PANEL_META._OriginalSetContentAlignment = LABEL_PANEL_META._OriginalSetContentAlignment or
 		LABEL_PANEL_META.SetContentAlignment
 

src/public/lgametrace.cpp

@@ -260,7 +260,7 @@ bool CTraceLuaFilter::ShouldHitEntity( IHandleEntity *pHandleEntity, int content
     {
         lua_pushvalue( m_pLuaState, m_iFilterArgIndex );
         CBaseEntity::PushLuaInstanceSafe( m_pLuaState, EntityFromEntityHandle( pHandleEntity ) );
-        lua_call( m_pLuaState, 1, 1 );
+        luasrc_pcall( m_pLuaState, 1, 1 );
 
         if ( lua_isboolean( m_pLuaState, -1 ) )
         {

src/public/lienginevgui.cpp

@@ -24,7 +24,7 @@ LUA_BINDING_BEGIN( EngineVgui, GetPanel, "library", "Get a VGUI panel instance b
 }
 LUA_BINDING_END( "VPanel", "The VGUI panel instance." )
 
-LUA_BINDING_BEGIN( EngineVgui, IsGameUIVisible, "library", "Check if the game UI is currently visible." )
+LUA_BINDING_BEGIN( EngineVgui, IsGameUiVisible, "library", "Check if the game UI is currently visible." )
 {
     lua_pushboolean( L, enginevgui->IsGameUIVisible() );
     return 1;

src/public/lsounds.cpp

@@ -588,16 +588,16 @@ void CPlayUrlCallbackData::Release()
     lua_unref( L, callbackRef );
 }
 
-void CALLBACK CallLuaBlockDownloadedCallback( const void *buffer, DWORD length, void *user )
-{
-    CPlayUrlCallbackData *callbackData = ( CPlayUrlCallbackData * )user;
-    lua_State *L = callbackData->L;
-    int callbackRef = callbackData->callbackRef;
-
-    lua_rawgeti( L, LUA_REGISTRYINDEX, callbackRef );
-    lua_pushlstring( L, ( const char * )buffer, length );
-    lua_call( L, 1, 0 );
-}
+//void CALLBACK CallLuaBlockDownloadedCallback( const void *buffer, DWORD length, void *user )
+//{
+//    CPlayUrlCallbackData *callbackData = ( CPlayUrlCallbackData * )user;
+//    lua_State *L = callbackData->L;
+//    int callbackRef = callbackData->callbackRef;
+//
+//    lua_rawgeti( L, LUA_REGISTRYINDEX, callbackRef );
+//    lua_pushlstring( L, ( const char * )buffer, length );
+//    luasrc_pcall( L, 1, 0 );
+//}
 
 // E.g: lua_run_menu Sounds.PlayUrl("https://www2.cs.uic.edu/~i101/SoundFiles/StarWars3.wav")
 LUA_BINDING_BEGIN( Sounds, PlayUrl, "library", "Plays a sound from a URL.", "client" )
@@ -628,15 +628,15 @@ LUA_BINDING_BEGIN( Sounds, PlayUrl, "library", "Plays a sound from a URL.", "cli
         lua_pushaudiochannel( L, audioChannel );
         lua_pushnil( L );  // TODO: implement errorId
         lua_pushnil( L );  // TODO: implement errorString
-        lua_call( L, 3, 0 );  // Call the callback that is on the stack
+        luasrc_pcall( L, 3, 0 );  // Call the callback that is on the stack
 
         return 0;
     }
 
     lua_pushaudiochannel( L, audioChannel );
     lua_pushnil( L );  // TODO: implement errorId
     lua_pushnil( L );  // TODO: implement errorString
-    lua_call( L, 3, 0 );  // Call the callback that is on the stack
+    luasrc_pcall( L, 3, 0 );  // Call the callback that is on the stack
 
     return 0;
 }
@@ -690,15 +690,15 @@ LUA_BINDING_BEGIN( Sounds, PlayFile, "library", "Plays a sound from a file.", "c
         lua_pushaudiochannel( L, audioChannel );
         lua_pushnil( L );  // TODO: implement errorId
         lua_pushnil( L );  // TODO: implement errorString
-        lua_call( L, 3, 0 );
+        luasrc_pcall( L, 3, 0 );
 
         return 0;
     }
 
     lua_pushaudiochannel( L, audioChannel );
     lua_pushnil( L );  // TODO: implement errorId
     lua_pushnil( L );  // TODO: implement errorString
-    lua_call( L, 3, 0 ); // Call the callback that is on the stack
+    luasrc_pcall( L, 3, 0 );  // Call the callback that is on the stack
 
     return 0;
 }

src/public/mathlib/langle.cpp

@@ -351,6 +351,16 @@ LUA_BINDING_BEGIN( Angles, Create, "library", "Creates a new angle." )
 }
 LUA_BINDING_END( "Angle", "The created angle." )
 
+LUA_BINDING_BEGIN( Angles, Lerp, "library", "Linearly interpolates between two angles." )
+{
+    float fraction = LUA_BINDING_ARGUMENT( luaL_checknumber, 1, "fraction" );
+    lua_QAngle angleStart = LUA_BINDING_ARGUMENT( luaL_checkangle, 2, "angleStart" );
+    lua_QAngle angleEnd = LUA_BINDING_ARGUMENT( luaL_checkangle, 3, "angleEnd" );
+    lua_pushangle( L, Lerp< QAngle >( fraction, angleStart, angleEnd ) );
+    return 1;
+}
+LUA_BINDING_END( "Angle", "The interpolated angle." )
+
 /*
 ** Open QAngle object
 */

src/vgui2/vgui_controls/Panel.cpp

@@ -1062,7 +1062,8 @@ int Panel::GetYPos()
 //-----------------------------------------------------------------------------
 void Panel::SetSize( int wide, int tall )
 {
-    Assert( abs( wide ) < 32768 && abs( tall ) < 32768 );
+    // Experiment; Commented out this assert, because scrollable panels may be way larger than 32768
+    //Assert( abs( wide ) < 32768 && abs( tall ) < 32768 );
     ipanel()->SetSize( GetVPanel(), wide, tall );
 }