Support new flag: FLAG_WINDOW_ALWAYS_RUN

Do not stop update/draw on window minimized

WARNING: SetConfigFlag() was reviewed to support int flags

src/core.c

@@ -300,6 +300,7 @@ static int currentWidth, currentHeight;         // Current render width and heig
 static int renderOffsetX = 0;                   // Offset X from render area (must be divided by 2)
 static int renderOffsetY = 0;                   // Offset Y from render area (must be divided by 2)
 static bool fullscreen = false;                 // Fullscreen mode (useful only for PLATFORM_DESKTOP)
+static bool alwaysRun = false;                  // Keep window update/draw running on minimized
 static Matrix screenScaling;                    // Matrix to scale screen (framebuffer rendering)
 
 #if defined(PLATFORM_RPI)
@@ -421,7 +422,7 @@ static double targetTime = 0.0;             // Desired time for one frame, if 0
 
 // Config internal variables
 //-----------------------------------------------------------------------------------
-static unsigned char configFlags = 0;       // Configuration flags (bit based)
+static unsigned int configFlags = 0;        // Configuration flags (bit based)
 static bool showLogo = false;               // Track if showing logo at init is enabled
 
 static char **dropFilesPath;                // Store dropped files paths as strings
@@ -798,7 +799,7 @@ bool WindowShouldClose(void)
     if (windowReady)
     {
         // While window minimized, stop loop execution
-        while (windowMinimized) glfwWaitEvents();
+        while (!alwaysRun && windowMinimized) glfwWaitEvents();
 
         return (glfwWindowShouldClose(window));
     }
@@ -1658,12 +1659,13 @@ Color Fade(Color color, float alpha)
 }
 
 // Setup window configuration flags (view FLAGS)
-void SetConfigFlags(unsigned char flags)
+void SetConfigFlags(unsigned int flags)
 {
     configFlags = flags;
 
     if (configFlags & FLAG_SHOW_LOGO) showLogo = true;
     if (configFlags & FLAG_FULLSCREEN_MODE) fullscreen = true;
+    if (configFlags & FLAG_WINDOW_ALWAYS_RUN) alwaysRun = true;
 }
 
 // NOTE TraceLog() function is located in [utils.h]

src/raylib.h

@@ -466,6 +466,7 @@ typedef enum {
     FLAG_WINDOW_UNDECORATED = 8,    // Set to disable window decoration (frame and buttons)
     FLAG_WINDOW_TRANSPARENT = 16,   // Set to allow transparent window
     FLAG_WINDOW_HIDDEN      = 128,  // Set to create the window initially hidden
+    FLAG_WINDOW_ALWAYS_RUN  = 256,  // Set to allow windows running while minimized
     FLAG_MSAA_4X_HINT       = 32,   // Set to try enabling MSAA 4X
     FLAG_VSYNC_HINT         = 64    // Set to try enabling V-Sync on GPU
 } ConfigFlag;
@@ -924,7 +925,7 @@ RLAPI Color GetColor(int hexValue);                               // Returns a C
 RLAPI Color Fade(Color color, float alpha);                       // Color fade-in or fade-out, alpha goes from 0.0f to 1.0f
 
 // Misc. functions
-RLAPI void SetConfigFlags(unsigned char flags);                   // Setup window configuration flags (view FLAGS)
+RLAPI void SetConfigFlags(unsigned int flags);                    // Setup window configuration flags (view FLAGS)
 RLAPI void SetTraceLogLevel(int logType);                         // Set the current threshold (minimum) log level
 RLAPI void SetTraceLogExit(int logType);                          // Set the exit threshold (minimum) log level
 RLAPI void SetTraceLogCallback(TraceLogCallback callback);        // Set a trace log callback to enable custom logging