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WASM examples (+ backports of new official examples) (#344)

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* chg: New build system that uses the officially distributed binaries, bumped version to 8.0.0, simplified git workflow, removed deprecated OpenGL 1.1 functionality.

* chg: Modernize CI workflow, enable SourceLink

- Bump workflow actions to latest majors (Node 24); drop deprecated softprops/action-gh-release@v1
- Trigger push builds on main instead of master
- Create local nuget feed dir before pack (fixes NU1301)
- Enable Microsoft.SourceLink.GitHub for debugging symbols (ref PR #340)

* fix: centralized version data in Directory.build.props, and fixed various interop details that had incorrect function signatures

* chore: updated readme

* fix: version the native extract marker and chain download via DependsOnTargets

The .extracted marker now includes the raylib package name, so bumping
TargetRaylibTag re-extracts the new archive instead of silently keeping
(and packing/copying) the previous version's files.

_PrepareNativeLibrary and _StageWasmNative now depend directly on
_DownloadAndExtractInternal instead of CallTarget-ing it; dependency
targets run in the same project instance, so the resolved properties
(RaylibPackageName etc.) propagate naturally.

* fix: let the binding build for browser-wasm on both net8.0 and net10.0

The net8-era wasm workload (Microsoft.NET.Runtime.WebAssembly.Sdk 8.0.x,
auto-imported for RID browser-wasm) treats every browser-wasm project as
a wasm app: it forces OutputType=Exe after project evaluation (CS5001
for a classlib) and hooks its app-bundle build after Build, which errors
because a library has no assemblies to bundle. Opt Raylib-cs out via
DisableAutoWasmBuildApp (props time, before the workload defaults its
trigger) and pin OutputType back to Library in Directory.Build.targets
(evaluated after the workload props, so the assignment wins). net10's
wasm SDK needs neither workaround.

* chore: readme updated

* chg: simplifying build logic - a simple line in the documentation should save us the code here

* fix: Wrong signature of FrameBufferComplete

* chore: readme update

* feat: samples default to local project reference, and can optionally use the nuget package

* feat: backporting existing raylib-cs examples and new official raylib examples to WASM, adopting raylib's original code style

* chore: readme, gitignore, and targets backport.

* fix: Examples.csproj runs the download task when building locally

* feat: backporting existing raylib-cs examples and new official raylib examples to WASM, adopting raylib's original code style

* chore: readme, gitignore, and targets backport.

* chore: clean up linter warnings

* feat: html harness focuses the example and allows quick navigation with J/K instead.

* chore: readme mentions the property to use nuget vs. the local project reference

* feat: replaced the J/K navigation with good old HTML buttons

* chore: run dotnet format scoped default (was previously scoped to just 'style')
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Examples/Core/ComputeHash.cs Normal file
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/*******************************************************************************************
*
* raylib [core] example - compute hash
*
* Example complexity rating: [★★☆☆] 2/4
*
* Example originally created with raylib 6.0, last time updated with raylib 6.0
*
* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
* BSD-like license that allows static linking with closed source software
*
* Copyright (c) 2025 Ramon Santamaria (@raysan5)
*
********************************************************************************************/
// NOTE: The upstream C example uses raygui (GuiTextBox/GuiButton/GuiLabel) for its UI.
// raygui is not bound in raylib-cs, so the widgets below are minimal re-implementations
// using plain raylib drawing/input. The hashing/Base64 logic is a faithful port.
using System.Text;
namespace Examples.Core;
public unsafe partial class ComputeHash : IExample
{
private const int screenWidth = 800;
private const int screenHeight = 450;
public string Name => "Core / Compute Hash";
public string Title => "raylib [core] example - compute hash";
// UI controls variables
private StringBuilder textInput;
private bool textBoxEditMode;
private bool btnComputeHashes;
// Data hash values
private uint hashCRC32;
private uint[] hashMD5;
private uint[] hashSHA1;
private uint[] hashSHA256;
// Base64 encoded data
private string base64Text;
private int framesCounter;
public void Init()
{
textInput = new StringBuilder("The quick brown fox jumps over the lazy dog.");
textBoxEditMode = false;
btnComputeHashes = false;
hashCRC32 = 0;
hashMD5 = null;
hashSHA1 = null;
hashSHA256 = null;
base64Text = null;
framesCounter = 0;
}
public void Update()
{
// Update
//----------------------------------------------------------------------------------
framesCounter++;
if (btnComputeHashes)
{
byte[] bytes = Encoding.UTF8.GetBytes(textInput.ToString());
int textInputLen = bytes.Length;
fixed (byte* textInputPtr = bytes)
{
int base64TextSize;
// Encode data to Base64 string (includes NULL terminator), memory must be MemFree()
sbyte* base64 = EncodeDataBase64(textInputPtr, textInputLen, &base64TextSize);
base64Text = (base64 != null) ? new string(base64) : null;
MemFree(base64); // Free Base64 text data (kept managed above)
hashCRC32 = ComputeCRC32(textInputPtr, textInputLen); // Compute CRC32 hash code (4 bytes)
hashMD5 = CopyHash(ComputeMD5(textInputPtr, textInputLen), 4); // Compute MD5 hash code, returns static int[4] (16 bytes)
hashSHA1 = CopyHash(ComputeSHA1(textInputPtr, textInputLen), 5); // Compute SHA1 hash code, returns static int[5] (20 bytes)
hashSHA256 = CopyHash(ComputeSHA256(textInputPtr, textInputLen), 8); // Compute SHA256 hash code, returns static int[8] (32 bytes)
}
}
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(Color.RayWhite);
GuiLabel(new Rectangle(40, 26, 720, 32), "INPUT DATA (TEXT):", 20);
if (GuiTextBox(new Rectangle(40, 64, 720, 32), textInput, 95, textBoxEditMode, 10))
{
textBoxEditMode = !textBoxEditMode;
}
btnComputeHashes = GuiButton(new Rectangle(40, 64 + 40, 720, 32), "COMPUTE INPUT DATA HASHES", 10);
GuiLabel(new Rectangle(40, 160, 720, 32), "INPUT DATA HASH VALUES:", 20);
GuiLabel(new Rectangle(40, 200, 120, 32), "CRC32 [32 bit]:", 10);
GuiTextBoxReadOnly(new Rectangle(40 + 120, 200, 720 - 120, 32), GetDataAsHexText(new uint[] { hashCRC32 }, 1), 10);
GuiLabel(new Rectangle(40, 200 + 36, 120, 32), "MD5 [128 bit]:", 10);
GuiTextBoxReadOnly(new Rectangle(40 + 120, 200 + 36, 720 - 120, 32), GetDataAsHexText(hashMD5, 4), 10);
GuiLabel(new Rectangle(40, 200 + 36 * 2, 120, 32), "SHA1 [160 bit]:", 10);
GuiTextBoxReadOnly(new Rectangle(40 + 120, 200 + 36 * 2, 720 - 120, 32), GetDataAsHexText(hashSHA1, 5), 10);
GuiLabel(new Rectangle(40, 200 + 36 * 3, 120, 32), "SHA256 [256 bit]:", 10);
GuiTextBoxReadOnly(new Rectangle(40 + 120, 200 + 36 * 3, 720 - 120, 32), GetDataAsHexText(hashSHA256, 8), 10);
GuiLabel(new Rectangle(40, 200 + 36 * 5 - 30, 320, 32), "BONUS - BAS64 ENCODED STRING:", 10);
GuiLabel(new Rectangle(40, 200 + 36 * 5, 120, 32), "BASE64 ENCODING:", 10);
GuiTextBoxReadOnly(new Rectangle(40 + 120, 200 + 36 * 5, 720 - 120, 32), base64Text, 10);
EndDrawing();
//----------------------------------------------------------------------------------
}
public void Unload()
{
}
//----------------------------------------------------------------------------------
// Module Functions Definition
//----------------------------------------------------------------------------------
private static uint[] CopyHash(uint* data, int count)
{
if (data == null)
{
return null;
}
uint[] result = new uint[count];
for (int i = 0; i < count; i++)
{
result[i] = data[i];
}
return result;
}
private static string GetDataAsHexText(uint[] data, int dataSize)
{
if ((data != null) && (dataSize > 0) && (dataSize < ((128 / 8) - 1)))
{
StringBuilder text = new StringBuilder();
for (int i = 0; i < dataSize; i++)
{
text.Append(data[i].ToString("X8"));
}
return text.ToString();
}
return "00000000";
}
//----------------------------------------------------------------------------------
// Minimal raygui-like widgets (plain raylib re-implementation)
//----------------------------------------------------------------------------------
private static void GuiLabel(Rectangle bounds, string text, int fontSize)
{
DrawText(text, (int)bounds.X, (int)(bounds.Y + (bounds.Height - fontSize) / 2), fontSize, Color.DarkGray);
}
private static bool GuiButton(Rectangle bounds, string text, int fontSize)
{
bool pressed = false;
Vector2 mouse = GetMousePosition();
bool hover = CheckCollisionPointRec(mouse, bounds);
Color fill = hover ? (IsMouseButtonDown(MouseButton.Left) ? Color.SkyBlue : Color.LightGray) : Color.RayWhite;
DrawRectangleRec(bounds, fill);
DrawRectangleLinesEx(bounds, 1, hover ? Color.Blue : Color.Gray);
int textWidth = MeasureText(text, fontSize);
DrawText(text, (int)(bounds.X + (bounds.Width - textWidth) / 2), (int)(bounds.Y + (bounds.Height - fontSize) / 2), fontSize, Color.DarkGray);
if (hover && IsMouseButtonReleased(MouseButton.Left))
{
pressed = true;
}
return pressed;
}
private bool GuiTextBox(Rectangle bounds, StringBuilder text, int maxChars, bool editMode, int fontSize)
{
bool pressed = false;
Vector2 mouse = GetMousePosition();
bool hover = CheckCollisionPointRec(mouse, bounds);
if (editMode)
{
int key = GetCharPressed();
while (key > 0)
{
if ((key >= 32) && (key <= 125) && (text.Length < maxChars - 1))
{
text.Append((char)key);
}
key = GetCharPressed();
}
if (IsKeyPressed(KeyboardKey.Backspace) && (text.Length > 0))
{
text.Remove(text.Length - 1, 1);
}
}
DrawRectangleRec(bounds, Color.RayWhite);
DrawRectangleLinesEx(bounds, editMode ? 2 : 1, editMode ? Color.Red : (hover ? Color.Blue : Color.Gray));
string content = text.ToString();
DrawText(content, (int)bounds.X + 4, (int)(bounds.Y + (bounds.Height - fontSize) / 2), fontSize, Color.DarkGray);
if (editMode && ((framesCounter / 20) % 2 == 0))
{
DrawText("_", (int)bounds.X + 4 + MeasureText(content, fontSize), (int)(bounds.Y + (bounds.Height - fontSize) / 2), fontSize, Color.DarkGray);
}
if (hover && IsMouseButtonPressed(MouseButton.Left))
{
pressed = true;
}
return pressed;
}
private static void GuiTextBoxReadOnly(Rectangle bounds, string text, int fontSize)
{
DrawRectangleRec(bounds, Color.LightGray);
DrawRectangleLinesEx(bounds, 1, Color.Gray);
if (text != null)
{
DrawText(text, (int)bounds.X + 4, (int)(bounds.Y + (bounds.Height - fontSize) / 2), fontSize, Color.Gray);
}
}
public static int Main()
{
// Initialization
//--------------------------------------------------------------------------------------
InitWindow(screenWidth, screenHeight, "raylib [core] example - compute hash");
SetTargetFPS(60);
//--------------------------------------------------------------------------------------
var game = new ComputeHash();
game.Init();
// Main game loop
while (!WindowShouldClose()) // Detect window close button or ESC key
{
game.Update();
}
game.Unload();
// De-Initialization
//--------------------------------------------------------------------------------------
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}
}