Review logo animation logic

src/screen_logo.c

@@ -43,8 +43,7 @@ static int leftSideRecHeight = 0;
 static int bottomSideRecWidth = 0;
 static int rightSideRecHeight = 0;
 
-static char raylib[8] = { 0 };     // raylib text array, max 8 letters
+static int state = 0;              // Logo animation states
-static int state = 0;              // Tracking animation states (State Machine)
 static float alpha = 1.0f;         // Useful for fading
 
 //----------------------------------------------------------------------------------
@@ -54,7 +53,6 @@ static float alpha = 1.0f;         // Useful for fading
 // Logo Screen Initialization logic
 void InitLogoScreen(void)
 {
-    // Initialize LOGO screen variables here!
     finishScreen = 0;
     framesCounter = 0;
     lettersCount = 0;
@@ -62,7 +60,10 @@ void InitLogoScreen(void)
     logoPositionX = GetScreenWidth()/2 - 128;
     logoPositionY = GetScreenHeight()/2 - 128;
 
-    for (int i = 0; i < 8; i++) raylib[i] = '\0';
+    topSideRecWidth = 16;
+    leftSideRecHeight = 16;
+    bottomSideRecWidth = 16;
+    rightSideRecHeight = 16;
 
     state = 0;
     alpha = 1.0f;
@@ -71,8 +72,7 @@ void InitLogoScreen(void)
 // Logo Screen Update logic
 void UpdateLogoScreen(void)
 {
-    // Update LOGO screen variables here!
+    if (state == 0)                 // State 0: Top-left square corner blink logic
-    if (state == 0)                 // State 0: Small box blinking
     {
         framesCounter++;
 
@@ -82,60 +82,43 @@ void UpdateLogoScreen(void)
             framesCounter = 0;      // Reset counter... will be used later...
         }
     }
-    else if (state == 1)            // State 1: Top and left bars growing
+    else if (state == 1)            // State 1: Bars animation logic: top and left
     {
         topSideRecWidth += 8;
         leftSideRecHeight += 8;
 
         if (topSideRecWidth == 256) state = 2;
     }
-    else if (state == 2)            // State 2: Bottom and right bars growing
+    else if (state == 2)            // State 2: Bars animation logic: bottom and right
     {
         bottomSideRecWidth += 8;
         rightSideRecHeight += 8;
 
         if (bottomSideRecWidth == 256) state = 3;
     }
-    else if (state == 3)            // State 3: Letters appearing (one by one)
+    else if (state == 3)            // State 3: "raylib" text-write animation logic
     {
         framesCounter++;
 
-        if (framesCounter/10)       // Every 12 frames, one more letter!
+        if (lettersCount < 10)
         {
-            lettersCount++;
+            if (framesCounter/12)   // Every 12 frames, one more letter!
-            framesCounter = 0;
+            {
-        }
+                lettersCount++;
-
+                framesCounter = 0;
-        switch (lettersCount)
+            }
-        {
-            case 1: raylib[0] = 'r'; break;
-            case 2: raylib[1] = 'a'; break;
-            case 3: raylib[2] = 'y'; break;
-            case 4: raylib[3] = 'l'; break;
-            case 5: raylib[4] = 'i'; break;
-            case 6: raylib[5] = 'b'; break;
-            default: break;
-        }
-
-        // When all letters have appeared...
-        if (lettersCount >= 10)
-        {
-            state = 4;
-            framesCounter = 0;
         }
-    }
+        else    // When all letters have appeared, just fade out everything
-    else if (state == 4)
-    {
-        framesCounter++;
-
-        if (framesCounter > 100)
         {
-            alpha -= 0.02f;
+            if (framesCounter > 200)
-
-            if (alpha <= 0.0f)
             {
-                alpha = 0.0f;
+                alpha -= 0.02f;
-                finishScreen = 1;
+
+                if (alpha <= 0.0f)
+                {
+                    alpha = 0.0f;
+                    finishScreen = 1;   // Jump to next screen
+                }
             }
         }
     }
@@ -144,16 +127,16 @@ void UpdateLogoScreen(void)
 // Logo Screen Draw logic
 void DrawLogoScreen(void)
 {
-    if (state == 0)
+    if (state == 0)         // Draw blinking top-left square corner
     {
         if ((framesCounter/10)%2) DrawRectangle(logoPositionX, logoPositionY, 16, 16, BLACK);
     }
-    else if (state == 1)
+    else if (state == 1)    // Draw bars animation: top and left
     {
         DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, BLACK);
         DrawRectangle(logoPositionX, logoPositionY, 16, leftSideRecHeight, BLACK);
     }
-    else if (state == 2)
+    else if (state == 2)    // Draw bars animation: bottom and right
     {
         DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, BLACK);
         DrawRectangle(logoPositionX, logoPositionY, 16, leftSideRecHeight, BLACK);
@@ -161,19 +144,7 @@ void DrawLogoScreen(void)
         DrawRectangle(logoPositionX + 240, logoPositionY, 16, rightSideRecHeight, BLACK);
         DrawRectangle(logoPositionX, logoPositionY + 240, bottomSideRecWidth, 16, BLACK);
     }
-    else if (state == 3)
+    else if (state == 3)    // Draw "raylib" text-write animation + "powered by"
-    {
-        DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, Fade(BLACK, alpha));
-        DrawRectangle(logoPositionX, logoPositionY + 16, 16, leftSideRecHeight - 32, Fade(BLACK, alpha));
-
-        DrawRectangle(logoPositionX + 240, logoPositionY + 16, 16, rightSideRecHeight - 32, Fade(BLACK, alpha));
-        DrawRectangle(logoPositionX, logoPositionY + 240, bottomSideRecWidth, 16, Fade(BLACK, alpha));
-
-        DrawRectangle(GetScreenWidth()/2 - 112, GetScreenHeight()/2 - 112, 224, 224, Fade(RAYWHITE, alpha));
-
-        DrawText(raylib, GetScreenWidth()/2 - 44, GetScreenHeight()/2 + 48, 50, Fade(BLACK, alpha));
-    }
-    else if (state == 4)
     {
         DrawRectangle(logoPositionX, logoPositionY, topSideRecWidth, 16, Fade(BLACK, alpha));
         DrawRectangle(logoPositionX, logoPositionY + 16, 16, leftSideRecHeight - 32, Fade(BLACK, alpha));
@@ -183,7 +154,7 @@ void DrawLogoScreen(void)
 
         DrawRectangle(GetScreenWidth()/2 - 112, GetScreenHeight()/2 - 112, 224, 224, Fade(RAYWHITE, alpha));
 
-        DrawText(raylib, GetScreenWidth()/2 - 44, GetScreenHeight()/2 + 48, 50, Fade(BLACK, alpha));
+        DrawText(TextSubtext("raylib", 0, lettersCount), GetScreenWidth()/2 - 44, GetScreenHeight()/2 + 48, 50, Fade(BLACK, alpha));
 
         if (framesCounter > 20) DrawText("powered by", logoPositionX, logoPositionY - 27, 20, Fade(DARKGRAY, alpha));
     }