Add embedded assets, splash screens, and asset loading support

Features added:
- Embedded main.lua and Lua files support (EMBED_MAIN option)
- Embedded assets support (EMBED_ASSETS option)
- Splash screens with dual logo display (always embedded)
- Asset loading progress tracking API (BeginAssetLoading, UpdateAssetLoading, EndAssetLoading)
- Custom font embedding for splash/loading screens
- --log flag for Windows console control
- --no-logo flag to skip splash screens in development
- Python scripts for embedding (embed_lua.py, embed_assets.py, embed_logo.py, embed_font.py)
- Documentation (EMBEDDING.md, ASSET_LOADING.md, SPLASH_SCREENS.md)

This allows building single-executable releases with all Lua code and assets embedded.

1 files changed, 61 insertions, 0 deletions

diff --git a/src/core.c b/src/core.c
index 338778e..0238432 100644
--- a/src/core.c
+++ b/src/core.c
@@ -4,6 +4,14 @@
 #include "textures.h"
 #include "lua_core.h"
 
+/* Forward declarations from lua_core.c for asset loading */
+extern int g_totalAssets;
+extern int g_loadedAssets;
+extern char g_currentAssetName[256];
+extern bool g_showLoadingScreen;
+extern float g_loadingProgress;
+extern void drawLoadingScreen();
+
 static size_t getBufferElementSize( Buffer* buffer ) {
 	switch ( buffer->type ) {
 		case BUFFER_UNSIGNED_CHAR: return sizeof( unsigned char );
@@ -1956,6 +1964,59 @@ int lcoreGetApplicationDirectory( lua_State* L ) {
 }
 
 /*
+> RL.BeginAssetLoading( int totalAssets )
+
+Initialize asset loading progress tracking
+
+- totalAssets: Total number of assets to load
+*/
+int lcoreBeginAssetLoading( lua_State* L ) {
+	g_totalAssets = luaL_checkinteger( L, 1 );
+	g_loadedAssets = 0;
+	g_showLoadingScreen = true;
+	g_loadingProgress = 0.0f;
+	g_currentAssetName[0] = '\0';
+
+	return 0;
+}
+
+/*
+> RL.UpdateAssetLoading( string assetName )
+
+Update loading progress for current asset
+
+- assetName: Name of the asset currently being loaded
+*/
+int lcoreUpdateAssetLoading( lua_State* L ) {
+	const char* assetName = luaL_checkstring( L, 1 );
+	strncpy( g_currentAssetName, assetName, sizeof(g_currentAssetName) - 1 );
+	g_currentAssetName[sizeof(g_currentAssetName) - 1] = '\0';
+
+	g_loadedAssets++;
+	g_loadingProgress = (float)g_loadedAssets / (float)g_totalAssets;
+
+	if ( g_showLoadingScreen ) {
+		drawLoadingScreen();
+	}
+
+	return 0;
+}
+
+/*
+> RL.EndAssetLoading()
+
+Finish asset loading and hide loading screen
+*/
+int lcoreEndAssetLoading( lua_State* L ) {
+	g_showLoadingScreen = false;
+	g_totalAssets = 0;
+	g_loadedAssets = 0;
+	g_currentAssetName[0] = '\0';
+
+	return 0;
+}
+
+/*
 > success = RL.MakeDirectory( string dirPath )
 
 Create directories (including full path requested), returns 0 on success