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

Examples/Textures/SpriteButton.cs

@@ -0,0 +1,122 @@
+/*******************************************************************************************
+*
+*   raylib [textures] example - sprite button
+*
+*   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)
+*
+*   Copyright (c) 2019 Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+using System.Numerics;
+using static Raylib_cs.Raylib;
+
+namespace Examples.Textures;
+
+public class SpriteButton
+{
+    // Number of frames (rectangles) for the button sprite texture
+    public const int NumFrames = 3;
+
+    public static int Main()
+    {
+        // Initialization
+        //--------------------------------------------------------------------------------------
+        const int screenWidth = 800;
+        const int screenHeight = 450;
+
+        InitWindow(screenWidth, screenHeight, "raylib [textures] example - sprite button");
+
+        InitAudioDevice();
+
+        Sound fxButton = LoadSound("resources/audio/buttonfx.wav");
+        Texture2D button = LoadTexture("resources/button.png");
+
+        // Define frame rectangle for drawing
+        int frameHeight = button.Height / NumFrames;
+        Rectangle sourceRec = new(0, 0, button.Width, frameHeight);
+
+        // Define button bounds on screen
+        Rectangle btnBounds = new(
+            screenWidth / 2 - button.Width / 2,
+            screenHeight / 2 - button.Height / NumFrames / 2,
+            button.Width,
+            frameHeight
+        );
+
+        // Button state: 0-NORMAL, 1-MOUSE_HOVER, 2-PRESSED
+        int btnState = 0;
+
+        // Button action should be activated
+        bool btnAction = false;
+
+        Vector2 mousePoint = new(0.0f, 0.0f);
+
+        SetTargetFPS(60);
+        //--------------------------------------------------------------------------------------
+
+        // Main game loop
+        while (!WindowShouldClose())
+        {
+            // Update
+            //----------------------------------------------------------------------------------
+            mousePoint = GetMousePosition();
+            btnAction = false;
+
+            // Check button state
+            if (CheckCollisionPointRec(mousePoint, btnBounds))
+            {
+                if (IsMouseButtonDown(MouseButton.MOUSE_LEFT_BUTTON))
+                {
+                    btnState = 2;
+                }
+                else
+                {
+                    btnState = 1;
+                }
+
+                if (IsMouseButtonReleased(MouseButton.MOUSE_LEFT_BUTTON))
+                {
+                    btnAction = true;
+                }
+            }
+            else
+            {
+                btnState = 0;
+            }
+
+            if (btnAction)
+            {
+                PlaySound(fxButton);
+                // TODO: Any desired action
+            }
+
+            // Calculate button frame rectangle to draw depending on button state
+            sourceRec.Y = btnState * frameHeight;
+            //----------------------------------------------------------------------------------
+
+            // Draw
+            //----------------------------------------------------------------------------------
+            BeginDrawing();
+            ClearBackground(Color.RAYWHITE);
+
+            // Draw button frame
+            DrawTextureRec(button, sourceRec, new Vector2(btnBounds.X, btnBounds.Y), Color.WHITE);
+
+            EndDrawing();
+            //----------------------------------------------------------------------------------
+        }
+
+        // De-Initialization
+        //--------------------------------------------------------------------------------------
+        UnloadTexture(button);
+        UnloadSound(fxButton);
+
+        CloseAudioDevice();
+        CloseWindow();
+        //--------------------------------------------------------------------------------------
+
+        return 0;
+    }
+}