Update/merge examples back into main repo (#192)

2025-07-04 19:23:43 -04:00 · 2023-08-25 08:08:32 +01:00
parent fa682b00ac
commit bcdf8cec5b
320 changed files with 57965 additions and 1 deletions
--- a/Examples/Core/WindowLetterbox.cs
+++ b/Examples/Core/WindowLetterbox.cs
@ -0,0 +1,139 @@
+/*******************************************************************************************
+*
+*   raylib [core] example - window scale letterbox
+*
+*   This example has been created using raylib 2.5 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Example contributed by Anata (@anatagawa) and reviewed by Ramon Santamaria (@raysan5)
+*
+*   Copyright (c) 2019 Anata (@anatagawa) and Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+using System;
+using System.Numerics;
+using static Raylib_cs.Raylib;
+
+namespace Examples.Core;
+
+public class WindowLetterbox
+{
+    public static int Main()
+    {
+        const int windowWidth = 800;
+        const int windowHeight = 450;
+
+        // Enable config flags for resizable window and vertical synchro
+        SetConfigFlags(ConfigFlags.FLAG_WINDOW_RESIZABLE | ConfigFlags.FLAG_VSYNC_HINT);
+        InitWindow(windowWidth, windowHeight, "raylib [core] example - window scale letterbox");
+        SetWindowMinSize(320, 240);
+
+        int gameScreenWidth = 640;
+        int gameScreenHeight = 480;
+
+        // Render texture initialization, used to hold the rendering result so we can easily resize it
+        RenderTexture2D target = LoadRenderTexture(gameScreenWidth, gameScreenHeight);
+        SetTextureFilter(target.Texture, TextureFilter.TEXTURE_FILTER_BILINEAR);
+
+        Color[] colors = new Color[10];
+        for (int i = 0; i < 10; i++)
+        {
+            colors[i] = new Color(GetRandomValue(100, 250), GetRandomValue(50, 150), GetRandomValue(10, 100), 255);
+        }
+
+        SetTargetFPS(60);
+        //--------------------------------------------------------------------------------------
+
+        // Main game loop
+        while (!WindowShouldClose())
+        {
+            // Update
+            //----------------------------------------------------------------------------------
+            // Compute required framebuffer scaling
+            float scale = MathF.Min(
+                (float)GetScreenWidth() / gameScreenWidth,
+                (float)GetScreenHeight() / gameScreenHeight
+            );
+
+            if (IsKeyPressed(KeyboardKey.KEY_SPACE))
+            {
+                // Recalculate random colors for the bars
+                for (int i = 0; i < 10; i++)
+                {
+                    colors[i] = new Color(
+                        GetRandomValue(100, 250),
+                        GetRandomValue(50, 150),
+                        GetRandomValue(10, 100),
+                        255
+                    );
+                }
+            }
+
+            // Update virtual mouse (clamped mouse value behind game screen)
+            Vector2 mouse = GetMousePosition();
+            Vector2 virtualMouse = Vector2.Zero;
+            virtualMouse.X = (mouse.X - (GetScreenWidth() - (gameScreenWidth * scale)) * 0.5f) / scale;
+            virtualMouse.Y = (mouse.Y - (GetScreenHeight() - (gameScreenHeight * scale)) * 0.5f) / scale;
+
+            Vector2 max = new((float)gameScreenWidth, (float)gameScreenHeight);
+            virtualMouse = Vector2.Clamp(virtualMouse, Vector2.Zero, max);
+            //----------------------------------------------------------------------------------
+
+            // Draw
+            //----------------------------------------------------------------------------------
+            BeginDrawing();
+            ClearBackground(Color.BLACK);
+
+            // Draw everything in the render texture, note this will not be rendered on screen, yet
+            BeginTextureMode(target);
+            ClearBackground(Color.RAYWHITE);
+
+            for (int i = 0; i < 10; i++)
+            {
+                DrawRectangle(0, (gameScreenHeight / 10) * i, gameScreenWidth, gameScreenHeight / 10, colors[i]);
+            }
+
+            DrawText(
+                "If executed inside a window,\nyou can resize the window,\nand see the screen scaling!",
+                10,
+                25,
+                20,
+                Color.WHITE
+            );
+
+            DrawText($"Default Mouse: [{(int)mouse.X} {(int)mouse.Y}]", 350, 25, 20, Color.GREEN);
+            DrawText($"Virtual Mouse: [{(int)virtualMouse.X}, {(int)virtualMouse.Y}]", 350, 55, 20, Color.YELLOW);
+
+            EndTextureMode();
+
+            // Draw RenderTexture2D to window, properly scaled
+            Rectangle sourceRec = new(
+                0.0f,
+                0.0f,
+                (float)target.Texture.Width,
+                (float)-target.Texture.Height
+            );
+            Rectangle destRec = new(
+                (GetScreenWidth() - ((float)gameScreenWidth * scale)) * 0.5f,
+                (GetScreenHeight() - ((float)gameScreenHeight * scale)) * 0.5f,
+                (float)gameScreenWidth * scale,
+                (float)gameScreenHeight * scale
+            );
+            DrawTexturePro(target.Texture, sourceRec, destRec, new Vector2(0, 0), 0.0f, Color.WHITE);
+
+            EndDrawing();
+            //--------------------------------------------------------------------------------------
+        }
+
+        // De-Initialization
+        //--------------------------------------------------------------------------------------
+        UnloadRenderTexture(target);
+
+        CloseWindow();
+        //--------------------------------------------------------------------------------------
+
+        return 0;
+    }
+}
+