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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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232
Examples/Core/SplitScreen.cs
View file

@ -1,40 +1,50 @@
/*******************************************************************************************
*
* raylib [core] example - split screen
* raylib [core] example - 3d camera split screen
*
* This example has been created using raylib 3.7 (www.raylib.com)
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
* Example complexity rating: [★★★☆] 3/4
*
* Example originally created with raylib 3.7, last time updated with raylib 4.0
*
* Example contributed by Jeffery Myers (@JeffM2501) and reviewed by Ramon Santamaria (@raysan5)
*
* Copyright (c) 2021 Jeffery Myers (@JeffM2501)
* 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) 2021-2025 Jeffery Myers (@JeffM2501)
*
********************************************************************************************/
using System.Numerics;
using static Raylib_cs.Raylib;
namespace Examples.Core;
public unsafe class SplitScreen
public partial class SplitScreen : IExample
{
static Texture2D TextureGrid;
static Camera3D CameraPlayer1;
static Camera3D CameraPlayer2;
private const int screenWidth = 800;
private const int screenHeight = 450;
private Camera3D CameraPlayer1;
private Camera3D CameraPlayer2;
private RenderTexture2D screenPlayer1;
private RenderTexture2D screenPlayer2;
private Rectangle splitScreenRect;
public string Name => "Core / Split Screen";
public string Title => "raylib [core] example - 3d camera split screen";
// Scene drawing
static void DrawScene()
private void DrawScene()
{
int count = 5;
var count = 5;
float spacing = 4;
// Grid of cube trees on a plane to make a "world"
// Simple world plane
DrawPlane(new Vector3(0, 0, 0), new Vector2(50, 50), Color.Beige);
// Draw scene: grid of cube trees on a plane to make a "world"
DrawPlane(new Vector3(0, 0, 0), new Vector2(50, 50), Color.Beige); // Simple world plane
for (float x = -count * spacing; x <= count * spacing; x += spacing)
for (var x = -count * spacing; x <= count * spacing; x += spacing)
{
for (float z = -count * spacing; z <= count * spacing; z += spacing)
for (var z = -count * spacing; z <= count * spacing; z += spacing)
{
DrawCube(new Vector3(x, 1.5f, z), 1, 1, 1, Color.Lime);
DrawCube(new Vector3(x, 0.5f, z), 0.25f, 1, 0.25f, Color.Brown);
@ -46,22 +56,8 @@ public unsafe class SplitScreen
DrawCube(CameraPlayer2.Position, 1, 1, 1, Color.Blue);
}
public static int Main()
public void Init()
{
// Initialization
//--------------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [core] example - split screen");
// Generate a simple texture to use for trees
Image img = GenImageChecked(256, 256, 32, 32, Color.DarkGray, Color.White);
TextureGrid = LoadTextureFromImage(img);
UnloadImage(img);
SetTextureFilter(TextureGrid, TextureFilter.Anisotropic16X);
SetTextureWrap(TextureGrid, TextureWrap.Clamp);
// Setup player 1 camera and screen
CameraPlayer1.FovY = 45.0f;
CameraPlayer1.Up.Y = 1.0f;
@ -69,7 +65,7 @@ public unsafe class SplitScreen
CameraPlayer1.Position.Z = -3.0f;
CameraPlayer1.Position.Y = 1.0f;
RenderTexture2D screenPlayer1 = LoadRenderTexture(screenWidth / 2, screenHeight);
screenPlayer1 = LoadRenderTexture(screenWidth / 2, screenHeight);
// Setup player two camera and screen
CameraPlayer2.FovY = 45.0f;
@ -78,97 +74,119 @@ public unsafe class SplitScreen
CameraPlayer2.Position.X = -3.0f;
CameraPlayer2.Position.Y = 3.0f;
RenderTexture2D screenPlayer2 = LoadRenderTexture(screenWidth / 2, screenHeight);
screenPlayer2 = LoadRenderTexture(screenWidth / 2, screenHeight);
// Build a flipped rectangle the size of the split view to use for drawing later
Rectangle splitScreenRect = new(
splitScreenRect = new(
0.0f,
0.0f,
(float)screenPlayer1.Texture.Width,
(float)-screenPlayer1.Texture.Height
);
}
SetTargetFPS(60);
public void Update()
{
// Update
//----------------------------------------------------------------------------------
// If anyone moves this frame, how far will they move based on the time since the last frame
// this moves things at 10 world units per second, regardless of the actual FPS
var offsetThisFrame = 10.0f * GetFrameTime();
// Move Player1 forward and backwards (no turning)
if (IsKeyDown(KeyboardKey.W))
{
CameraPlayer1.Position.Z += offsetThisFrame;
CameraPlayer1.Target.Z += offsetThisFrame;
}
else if (IsKeyDown(KeyboardKey.S))
{
CameraPlayer1.Position.Z -= offsetThisFrame;
CameraPlayer1.Target.Z -= offsetThisFrame;
}
// Move Player2 forward and backwards (no turning)
if (IsKeyDown(KeyboardKey.Up))
{
CameraPlayer2.Position.X += offsetThisFrame;
CameraPlayer2.Target.X += offsetThisFrame;
}
else if (IsKeyDown(KeyboardKey.Down))
{
CameraPlayer2.Position.X -= offsetThisFrame;
CameraPlayer2.Target.X -= offsetThisFrame;
}
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
// Draw Player1 view to the render texture
BeginTextureMode(screenPlayer1);
ClearBackground(Color.SkyBlue);
BeginMode3D(CameraPlayer1);
DrawScene();
EndMode3D();
DrawRectangle(0, 0, GetScreenWidth() / 2, 40, Fade(Color.RayWhite, 0.8f));
DrawText("PLAYER1: W/S to move", 10, 10, 20, Color.Maroon);
EndTextureMode();
// Draw Player2 view to the render texture
BeginTextureMode(screenPlayer2);
ClearBackground(Color.SkyBlue);
BeginMode3D(CameraPlayer2);
DrawScene();
EndMode3D();
DrawRectangle(0, 0, GetScreenWidth() / 2, 40, Fade(Color.RayWhite, 0.8f));
DrawText("PLAYER2: UP/DOWN to move", 10, 10, 20, Color.DarkBlue);
EndTextureMode();
// Draw both views render textures to the screen side by side
BeginDrawing();
ClearBackground(Color.Black);
DrawTextureRec(screenPlayer1.Texture, splitScreenRect, new Vector2(0, 0), Color.White);
DrawTextureRec(screenPlayer2.Texture, splitScreenRect, new Vector2(screenWidth / 2.0f, 0), Color.White);
DrawRectangle(GetScreenWidth() / 2 - 2, 0, 4, GetScreenHeight(), Color.LightGray);
EndDrawing();
//----------------------------------------------------------------------------------
}
public void Unload()
{
UnloadRenderTexture(screenPlayer1); // Unload render texture
UnloadRenderTexture(screenPlayer2); // Unload render texture
}
public static int Main()
{
// Initialization
//--------------------------------------------------------------------------------------
InitWindow(screenWidth, screenHeight, "raylib [core] example - 3d camera split screen");
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------
var game = new SplitScreen();
game.Init();
// Main game loop
while (!WindowShouldClose())
while (!WindowShouldClose()) // Detect window close button or ESC key
{
// Update
//----------------------------------------------------------------------------------
// If anyone moves this frame, how far will they move based on the time since the last frame
// this moves thigns at 10 world units per second, regardless of the actual FPS
float offsetThisFrame = 10.0f * GetFrameTime();
// Move Player1 forward and backwards (no turning)
if (IsKeyDown(KeyboardKey.W))
{
CameraPlayer1.Position.Z += offsetThisFrame;
CameraPlayer1.Target.Z += offsetThisFrame;
}
else if (IsKeyDown(KeyboardKey.S))
{
CameraPlayer1.Position.Z -= offsetThisFrame;
CameraPlayer1.Target.Z -= offsetThisFrame;
}
// Move Player2 forward and backwards (no turning)
if (IsKeyDown(KeyboardKey.Up))
{
CameraPlayer2.Position.X += offsetThisFrame;
CameraPlayer2.Target.X += offsetThisFrame;
}
else if (IsKeyDown(KeyboardKey.Down))
{
CameraPlayer2.Position.X -= offsetThisFrame;
CameraPlayer2.Target.X -= offsetThisFrame;
}
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
// Draw Player1 view to the render texture
BeginTextureMode(screenPlayer1);
ClearBackground(Color.SkyBlue);
BeginMode3D(CameraPlayer1);
DrawScene();
EndMode3D();
DrawText("PLAYER 1 W/S to move", 10, 10, 20, Color.Red);
EndTextureMode();
// Draw Player2 view to the render texture
BeginTextureMode(screenPlayer2);
ClearBackground(Color.SkyBlue);
BeginMode3D(CameraPlayer2);
DrawScene();
EndMode3D();
DrawText("PLAYER 2 UP/DOWN to move", 10, 10, 20, Color.Blue);
EndTextureMode();
// Draw both views render textures to the screen side by side
BeginDrawing();
ClearBackground(Color.Black);
DrawTextureRec(screenPlayer1.Texture, splitScreenRect, new Vector2(0, 0), Color.White);
DrawTextureRec(screenPlayer2.Texture, splitScreenRect, new Vector2(screenWidth / 2.0f, 0), Color.White);
EndDrawing();
game.Update();
}
game.Unload();
// De-Initialization
//--------------------------------------------------------------------------------------
UnloadRenderTexture(screenPlayer1);
UnloadRenderTexture(screenPlayer2);
UnloadTexture(TextureGrid);
CloseWindow();
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}
}