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

Examples/Textures/NpatchDrawing.cs

@@ -0,0 +1,145 @@
+/*******************************************************************************************
+*
+*   raylib [textures] example - N-patch drawing
+*
+*   NOTE: Images are loaded in CPU memory (RAM); textures are loaded in GPU memory (VRAM)
+*
+*   This example has been created using raylib 2.0 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Example contributed by Jorge A. Gomes (@overdev) and reviewed by Ramon Santamaria (@raysan5)
+*
+*   Copyright (c) 2018 Jorge A. Gomes (@overdev) and Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+using System;
+using System.Numerics;
+using static Raylib_cs.Raylib;
+
+namespace Examples.Textures;
+
+public class NpatchDrawing
+{
+    public static int Main()
+    {
+        // Initialization
+        //--------------------------------------------------------------------------------------
+        const int screenWidth = 800;
+        const int screenHeight = 450;
+
+        InitWindow(screenWidth, screenHeight, "raylib [textures] example - N-patch drawing");
+
+        // NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
+        Texture2D nPatchTexture = LoadTexture("resources/ninepatch_button.png");
+
+        Vector2 mousePosition = new(0.0f, 0.0f);
+        Vector2 origin = new(0.0f, 0.0f);
+
+        // Position and size of the n-patches
+        Rectangle dstRec1 = new(480.0f, 160.0f, 32.0f, 32.0f);
+        Rectangle dstRec2 = new(160.0f, 160.0f, 32.0f, 32.0f);
+        Rectangle dstRecH = new(160.0f, 93.0f, 32.0f, 32.0f);
+        Rectangle dstRecV = new(92.0f, 160.0f, 32.0f, 32.0f);
+
+        // A 9-patch (NPT_9PATCH) changes its sizes in both axis
+        NPatchInfo ninePatchInfo1 = new NPatchInfo
+        {
+            Source = new Rectangle(0.0f, 0.0f, 64.0f, 64.0f),
+            Left = 12,
+            Top = 40,
+            Right = 12,
+            Bottom = 12,
+            Layout = NPatchLayout.NPATCH_NINE_PATCH
+        };
+        NPatchInfo ninePatchInfo2 = new NPatchInfo
+        {
+            Source = new Rectangle(0.0f, 128.0f, 64.0f, 64.0f),
+            Left = 16,
+            Top = 16,
+            Right = 16,
+            Bottom = 16,
+            Layout = NPatchLayout.NPATCH_NINE_PATCH
+        };
+
+        // A horizontal 3-patch (NPT_3PATCH_HORIZONTAL) changes its sizes along the x axis only
+        NPatchInfo h3PatchInfo = new NPatchInfo
+        {
+            Source = new Rectangle(0.0f, 64.0f, 64.0f, 64.0f),
+            Left = 8,
+            Top = 8,
+            Right = 8,
+            Bottom = 8,
+            Layout = NPatchLayout.NPATCH_THREE_PATCH_HORIZONTAL
+        };
+
+        // A vertical 3-patch (NPT_3PATCH_VERTICAL) changes its sizes along the y axis only
+        NPatchInfo v3PatchInfo = new NPatchInfo
+        {
+            Source = new Rectangle(0.0f, 192.0f, 64.0f, 64.0f),
+            Left = 6,
+            Top = 6,
+            Right = 6,
+            Bottom = 6,
+            Layout = NPatchLayout.NPATCH_THREE_PATCH_VERTICAL
+        };
+
+        SetTargetFPS(60);
+        //---------------------------------------------------------------------------------------
+
+        // Main game loop
+        while (!WindowShouldClose())
+        {
+            // Update
+            //----------------------------------------------------------------------------------
+            mousePosition = GetMousePosition();
+
+            // Resize the n-patches based on mouse position
+            dstRec1.Width = mousePosition.X - dstRec1.X;
+            dstRec1.Height = mousePosition.Y - dstRec1.Y;
+            dstRec2.Width = mousePosition.X - dstRec2.X;
+            dstRec2.Height = mousePosition.Y - dstRec2.Y;
+            dstRecH.Width = mousePosition.X - dstRecH.X;
+            dstRecV.Height = mousePosition.Y - dstRecV.Y;
+
+            // Set a minimum width and/or height
+            dstRec1.Width = Math.Clamp(dstRec1.Width, 1.0f, 300.0f);
+            dstRec1.Height = MathF.Max(dstRec1.Height, 1.0f);
+            dstRec2.Width = Math.Clamp(dstRec2.Width, 1.0f, 300.0f);
+            dstRec2.Height = MathF.Max(dstRec2.Height, 1.0f);
+            dstRecH.Width = MathF.Max(dstRecH.Width, 1.0f);
+            dstRecV.Height = MathF.Max(dstRecV.Height, 1.0f);
+            //----------------------------------------------------------------------------------
+
+            // Draw
+            //----------------------------------------------------------------------------------
+            BeginDrawing();
+            ClearBackground(Color.RAYWHITE);
+
+            // Draw the n-patches
+            DrawTextureNPatch(nPatchTexture, ninePatchInfo2, dstRec2, origin, 0.0f, Color.WHITE);
+            DrawTextureNPatch(nPatchTexture, ninePatchInfo1, dstRec1, origin, 0.0f, Color.WHITE);
+            DrawTextureNPatch(nPatchTexture, h3PatchInfo, dstRecH, origin, 0.0f, Color.WHITE);
+            DrawTextureNPatch(nPatchTexture, v3PatchInfo, dstRecV, origin, 0.0f, Color.WHITE);
+
+            // Draw the source texture
+            DrawRectangleLines(5, 88, 74, 266, Color.BLUE);
+            DrawTexture(nPatchTexture, 10, 93, Color.WHITE);
+            DrawText("TEXTURE", 15, 360, 10, Color.DARKGRAY);
+
+            DrawText("Move the mouse to stretch or shrink the n-patches", 10, 20, 20, Color.DARKGRAY);
+
+            EndDrawing();
+            //----------------------------------------------------------------------------------
+        }
+
+        // De-Initialization
+        //--------------------------------------------------------------------------------------
+        UnloadTexture(nPatchTexture);
+
+        CloseWindow();
+        //--------------------------------------------------------------------------------------
+
+        return 0;
+    }
+}