From 7032958d5b38cf70c4f5b0765529a9160a4a75e9 Mon Sep 17 00:00:00 2001
From: Sarah B <git@sarahduck.ca>
Date: Wed, 17 Apr 2024 16:38:11 -0700
Subject: Inital Commit

---
 .gitignore         |   4 ++
 Bitmap.cs          | 126 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 SarahEngine.csproj |  14 ++++++
 3 files changed, 144 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Bitmap.cs
 create mode 100644 SarahEngine.csproj

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c614c3a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+.vscode/
+bin/
+obj/
+config.conf
\ No newline at end of file
diff --git a/Bitmap.cs b/Bitmap.cs
new file mode 100644
index 0000000..7f7b9d6
--- /dev/null
+++ b/Bitmap.cs
@@ -0,0 +1,126 @@
+using ZeroElectric.Vinculum;
+using System.Runtime.InteropServices;
+using System.Numerics;
+
+namespace SarahEngine;
+
+public unsafe class Bitmap
+{
+    Image img;
+    Texture tex;
+
+    public Vector2 Origin = Vector2.Zero;
+
+    bool imgChanged = false;
+
+    private Bitmap(Image image)
+    {
+        img = image;
+        tex = Raylib.LoadTextureFromImage(img);
+    }
+
+    void ReloadTexture()
+    {
+        Raylib.UnloadTexture(tex);
+        tex = Raylib.LoadTextureFromImage(img);
+    }
+
+    public enum ImageType
+    {
+        PNG,GIF,JPG,TGA,BMP
+    }
+
+    static string ImageTypeToString(ImageType type) => type switch
+    {
+        ImageType.PNG => ".png",
+        ImageType.GIF => ".gif",
+        ImageType.JPG => ".jpg",
+        ImageType.TGA => ".tga",
+        ImageType.BMP => ".bmp",
+        _ => throw new Exception("Image type not supported... How did you get this error??")
+    };
+
+    public int Width
+    {
+        get => img.width;
+        set => ResizeCanvas(value, Height);
+    }
+
+    public int Height
+    {
+        get => img.height;
+        set => ResizeCanvas(Width, value);
+    }
+
+    public void CenterOrigin()
+    {
+        Origin = new(Width/2f, Height/2f);
+    }
+
+    public byte[] ToMemory(ImageType imageType = ImageType.PNG)
+    {
+        byte* ptr = Raylib.ExportImageToMemory(img, ImageTypeToString(imageType), out int length);
+        byte[] mem = new byte[length];
+        Marshal.Copy((nint)ptr, mem, 0, length);
+        return mem;
+    }
+
+    public static Bitmap FromMemory(byte[] ImageMemory, ImageType imageType)
+    {
+        Image img;
+        fixed (byte* ptr = &ImageMemory[0])
+        img = Raylib.LoadImageFromMemory(ImageTypeToString(imageType), ptr, ImageMemory.Length);
+        return new Bitmap(img);
+    }
+
+    public static Bitmap FromFile(string filePath)
+    {
+        Image img = Raylib.LoadImage(filePath);
+        return new Bitmap(img);
+    }
+
+    public void Crop(Rectangle crop)
+    {
+        fixed (Image* imgptr = &img)
+        Raylib.ImageCrop(imgptr, crop);
+        imgChanged = true;
+    }
+
+    public void ResizeCanvas(int newWidth, int newHeight, int offsetX = 0, int offsetY = 0, Color fill = new())
+    {
+        fixed (Image* imgptr = &img)
+        Raylib.ImageResizeCanvas(imgptr, newWidth, newHeight, offsetX, offsetY, fill);
+        imgChanged = true;
+    }
+
+    public void Resize(int newWidth, int newHeight)
+    {
+        fixed (Image* imgptr = &img)
+        Raylib.ImageResize(imgptr, newWidth, newHeight);
+        imgChanged = true;
+    }
+
+    public void Draw(Vector2 Position, float Rotation, Vector2 Scale)
+    {
+        if (imgChanged) {
+            ReloadTexture();
+            imgChanged = false;
+        }
+
+        Rectangle source = new(0f, 0f, Width, Height);
+        Color tint = new(255,255,255,255);
+
+        Position -= Origin*Scale;
+        Rectangle dest = new(Position.X, Position.Y, Width*Scale.X, Height*Scale.Y);
+
+        Raylib.DrawTexturePro(tex, source, dest, Origin, Rotation, tint);
+    }
+    
+    void Unload()
+    {
+        Raylib.UnloadImage(img);
+        Raylib.UnloadTexture(tex);
+    }
+
+    ~Bitmap() => Unload();
+}
diff --git a/SarahEngine.csproj b/SarahEngine.csproj
new file mode 100644
index 0000000..c5b01ae
--- /dev/null
+++ b/SarahEngine.csproj
@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Raylib-CSharp-Vinculum" Version="5.0.1" />
+  </ItemGroup>
+
+</Project>
-- 
cgit