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

Examples/Textures/ImageDrawing.cs

@@ -0,0 +1,102 @@
+/*******************************************************************************************
+*
+*   raylib [textures] example - Image loading and drawing on it
+*
+*   NOTE: Images are loaded in CPU memory (RAM); textures are loaded in GPU memory (VRAM)
+*
+*   This example has been created using raylib 1.4 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Copyright (c) 2016 Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+using System.Numerics;
+using static Raylib_cs.Raylib;
+
+namespace Examples.Textures;
+
+public class ImageDrawing
+{
+    public static int Main()
+    {
+        // Initialization
+        //--------------------------------------------------------------------------------------
+        const int screenWidth = 800;
+        const int screenHeight = 450;
+
+        InitWindow(screenWidth, screenHeight, "raylib [textures] example - image drawing");
+
+        // NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
+
+        Image cat = LoadImage("resources/cat.png");
+        ImageCrop(ref cat, new Rectangle(100, 10, 280, 380));
+        ImageFlipHorizontal(ref cat);
+        ImageResize(ref cat, 150, 200);
+
+        Image parrots = LoadImage("resources/parrots.png");
+
+        // Draw one image over the other with a scaling of 1.5f
+        Rectangle src = new(0, 0, cat.Width, cat.Height);
+        ImageDraw(ref parrots, cat, src, new Rectangle(30, 40, cat.Width * 1.5f, cat.Height * 1.5f), Color.WHITE);
+        ImageCrop(ref parrots, new Rectangle(0, 50, parrots.Width, parrots.Height - 100));
+
+        // Draw on the image with a few image draw methods
+        ImageDrawPixel(ref parrots, 10, 10, Color.RAYWHITE);
+        ImageDrawCircle(ref parrots, 10, 10, 5, Color.RAYWHITE);
+        ImageDrawRectangle(ref parrots, 5, 20, 10, 10, Color.RAYWHITE);
+
+        UnloadImage(cat);
+
+        // Load custom font for frawing on image
+        Font font = LoadFont("resources/fonts/custom_jupiter_crash.png");
+
+        // Draw over image using custom font
+        ImageDrawTextEx(ref parrots, font, "PARROTS & CAT", new Vector2(300, 230), font.BaseSize, -2, Color.WHITE);
+
+        // Unload custom spritefont (already drawn used on image)
+        UnloadFont(font);
+
+        Texture2D texture = LoadTextureFromImage(parrots);
+        UnloadImage(parrots);
+
+        SetTargetFPS(60);
+        //---------------------------------------------------------------------------------------
+
+        // Main game loop
+        while (!WindowShouldClose())
+        {
+            // Update
+            //----------------------------------------------------------------------------------
+            // TODO: Update your variables here
+            //----------------------------------------------------------------------------------
+
+            // Draw
+            //----------------------------------------------------------------------------------
+            BeginDrawing();
+            ClearBackground(Color.RAYWHITE);
+
+            int x = screenWidth / 2 - texture.Width / 2;
+            int y = screenHeight / 2 - texture.Height / 2;
+            DrawTexture(texture, x, y - 40, Color.WHITE);
+            DrawRectangleLines(x, y - 40, texture.Width, texture.Height, Color.DARKGRAY);
+
+            DrawText("We are drawing only one texture from various images composed!", 240, 350, 10, Color.DARKGRAY);
+
+            string text = "Source images have been cropped, scaled, flipped and copied one over the other.";
+            DrawText(text, 90, 370, 10, Color.DARKGRAY);
+
+            EndDrawing();
+            //----------------------------------------------------------------------------------
+        }
+
+        // De-Initialization
+        //--------------------------------------------------------------------------------------
+        UnloadTexture(texture);
+
+        CloseWindow();
+        //--------------------------------------------------------------------------------------
+
+        return 0;
+    }
+}