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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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338
Examples/Core/Camera3dFirstPerson.cs
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@ -2,183 +2,215 @@
*
* raylib [core] example - 3d camera first person
*
* This example has been created using raylib 1.3 (www.raylib.com)
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
* Example complexity rating: [★★☆☆] 2/4
*
* Copyright (c) 2015 Ramon Santamaria (@raysan5)
* Example originally created with raylib 1.3, last time updated with raylib 1.3
*
* 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) 2015-2025 Ramon Santamaria (@raysan5)
*
********************************************************************************************/
using System.Numerics;
using static Raylib_cs.Raylib;
namespace Examples.Core;
public class Camera3dFirstPerson
public partial class Camera3dFirstPerson : IExample
{
public const int MaxColumns = 20;
private const int screenWidth = 800;
private const int screenHeight = 450;
public string Name => "Core / Camera 3D First Person";
public string Title => "raylib [core] example - 3d camera first person";
public bool CursorDisabled => true;
private Camera3D camera;
private CameraMode cameraMode;
private float[] heights;
private Vector3[] positions;
private Color[] colors;
public void Init()
{
// Define the camera to look into our 3d world (position, target, up vector)
camera = new();
camera.Position = new Vector3(0.0f, 2.0f, 4.0f); // Camera position
camera.Target = new Vector3(0.0f, 2.0f, 0.0f); // Camera looking at point
camera.Up = new Vector3(0.0f, 1.0f, 0.0f); // Camera up vector (rotation towards target)
camera.FovY = 60.0f; // Camera field-of-view Y
camera.Projection = CameraProjection.Perspective; // Camera projection type
cameraMode = CameraMode.FirstPerson;
// Generates some random columns
heights = new float[MaxColumns];
positions = new Vector3[MaxColumns];
colors = new Color[MaxColumns];
for (var i = 0; i < MaxColumns; i++)
{
heights[i] = (float)GetRandomValue(1, 12);
positions[i] = new Vector3(GetRandomValue(-15, 15), heights[i] / 2.0f, GetRandomValue(-15, 15));
colors[i] = new Color(GetRandomValue(20, 255), GetRandomValue(10, 55), 30, 255);
}
}
public void Update()
{
// Update
//----------------------------------------------------------------------------------
// Switch camera mode
if (IsKeyPressed(KeyboardKey.One))
{
cameraMode = CameraMode.Free;
camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
}
if (IsKeyPressed(KeyboardKey.Two))
{
cameraMode = CameraMode.FirstPerson;
camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
}
if (IsKeyPressed(KeyboardKey.Three))
{
cameraMode = CameraMode.ThirdPerson;
camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
}
if (IsKeyPressed(KeyboardKey.Four))
{
cameraMode = CameraMode.Orbital;
camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
}
// Switch camera projection
if (IsKeyPressed(KeyboardKey.P))
{
if (camera.Projection == CameraProjection.Perspective)
{
// Create isometric view
cameraMode = CameraMode.ThirdPerson;
// Note: The target distance is related to the render distance in the orthographic projection
camera.Position = new Vector3(0.0f, 2.0f, -100.0f);
camera.Target = new Vector3(0.0f, 2.0f, 0.0f);
camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
camera.Projection = CameraProjection.Orthographic;
camera.FovY = 20.0f; // near plane width in CAMERA_ORTHOGRAPHIC
// CameraYaw(&camera, -135 * DEG2RAD, true);
// CameraPitch(&camera, -45 * DEG2RAD, true, true, false);
}
else if (camera.Projection == CameraProjection.Orthographic)
{
// Reset to default view
cameraMode = CameraMode.ThirdPerson;
camera.Position = new Vector3(0.0f, 2.0f, 10.0f);
camera.Target = new Vector3(0.0f, 2.0f, 0.0f);
camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
camera.Projection = CameraProjection.Perspective;
camera.FovY = 60.0f;
}
}
// Update camera computes movement internally depending on the camera mode
// Some default standard keyboard/mouse inputs are hardcoded to simplify use
// For advanced camera controls, it's recommended to compute camera movement manually
UpdateCamera(ref camera, cameraMode); // Update camera
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(Color.RayWhite);
BeginMode3D(camera);
// Draw ground
DrawPlane(new Vector3(0.0f, 0.0f, 0.0f), new Vector2(32.0f, 32.0f), Color.LightGray);
// Draw a blue wall
DrawCube(new Vector3(-16.0f, 2.5f, 0.0f), 1.0f, 5.0f, 32.0f, Color.Blue);
// Draw a green wall
DrawCube(new Vector3(16.0f, 2.5f, 0.0f), 1.0f, 5.0f, 32.0f, Color.Lime);
// Draw a yellow wall
DrawCube(new Vector3(0.0f, 2.5f, 16.0f), 32.0f, 5.0f, 1.0f, Color.Gold);
// Draw some cubes around
for (var i = 0; i < MaxColumns; i++)
{
DrawCube(positions[i], 2.0f, heights[i], 2.0f, colors[i]);
DrawCubeWires(positions[i], 2.0f, heights[i], 2.0f, Color.Maroon);
}
// Draw player cube
if (cameraMode == CameraMode.ThirdPerson)
{
DrawCube(camera.Target, 0.5f, 0.5f, 0.5f, Color.Purple);
DrawCubeWires(camera.Target, 0.5f, 0.5f, 0.5f, Color.DarkPurple);
}
EndMode3D();
// Draw info boxes
DrawRectangle(5, 5, 330, 100, Fade(Color.SkyBlue, 0.5f));
DrawRectangleLines(5, 5, 330, 100, Color.Blue);
DrawText("Camera controls:", 15, 15, 10, Color.Black);
DrawText("- Move keys: W, A, S, D, Space, Left-Ctrl", 15, 30, 10, Color.Black);
DrawText("- Look around: arrow keys or mouse", 15, 45, 10, Color.Black);
DrawText("- Camera mode keys: 1, 2, 3, 4", 15, 60, 10, Color.Black);
DrawText("- Zoom keys: num-plus, num-minus or mouse scroll", 15, 75, 10, Color.Black);
DrawText("- Camera projection key: P", 15, 90, 10, Color.Black);
DrawRectangle(600, 5, 195, 100, Fade(Color.SkyBlue, 0.5f));
DrawRectangleLines(600, 5, 195, 100, Color.Blue);
DrawText("Camera status:", 610, 15, 10, Color.Black);
DrawText($"- Mode: {cameraMode}", 610, 30, 10, Color.Black);
DrawText($"- Projection: {camera.Projection}", 610, 45, 10, Color.Black);
DrawText($"- Position: {camera.Position}", 610, 60, 10, Color.Black);
DrawText($"- Target: {camera.Target}", 610, 75, 10, Color.Black);
DrawText($"- Up: {camera.Up}", 610, 90, 10, Color.Black);
EndDrawing();
//----------------------------------------------------------------------------------
}
public void Unload()
{
}
public static int Main()
{
// Initialization
//--------------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [core] example - 3d camera first person");
// Define the camera to look into our 3d world (position, target, up vector)
Camera3D camera = new();
camera.Position = new Vector3(4.0f, 2.0f, 4.0f);
camera.Target = new Vector3(0.0f, 1.8f, 0.0f);
camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
camera.FovY = 60.0f;
camera.Projection = CameraProjection.Perspective;
DisableCursor(); // Limit cursor to relative movement inside the window
// Generates some random columns
float[] heights = new float[MaxColumns];
Vector3[] positions = new Vector3[MaxColumns];
Color[] colors = new Color[MaxColumns];
for (int i = 0; i < MaxColumns; i++)
{
heights[i] = (float)GetRandomValue(1, 12);
positions[i] = new Vector3(GetRandomValue(-15, 15), heights[i] / 2, GetRandomValue(-15, 15));
colors[i] = new Color(GetRandomValue(20, 255), GetRandomValue(10, 55), 30, 255);
}
CameraMode cameraMode = CameraMode.FirstPerson;
SetTargetFPS(60);
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------
var game = new Camera3dFirstPerson();
game.Init();
// Main game loop
while (!WindowShouldClose())
while (!WindowShouldClose()) // Detect window close button or ESC key
{
// Update
//----------------------------------------------------------------------------------
// Switch camera mode
if (IsKeyPressed(KeyboardKey.One))
{
cameraMode = CameraMode.Free;
camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
}
if (IsKeyPressed(KeyboardKey.Two))
{
cameraMode = CameraMode.FirstPerson;
camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
}
if (IsKeyPressed(KeyboardKey.Three))
{
cameraMode = CameraMode.ThirdPerson;
camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
}
if (IsKeyPressed(KeyboardKey.Four))
{
cameraMode = CameraMode.Orbital;
camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
}
// Switch camera projection
if (IsKeyPressed(KeyboardKey.P))
{
if (camera.Projection == CameraProjection.Perspective)
{
// Create isometric view
cameraMode = CameraMode.ThirdPerson;
// Note: The target distance is related to the render distance in the orthographic projection
camera.Position = new Vector3(0.0f, 2.0f, -100.0f);
camera.Target = new Vector3(0.0f, 2.0f, 0.0f);
camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
camera.Projection = CameraProjection.Orthographic;
camera.FovY = 20.0f; // near plane width in CAMERA_ORTHOGRAPHIC
// CameraYaw(&camera, -135 * DEG2RAD, true);
// CameraPitch(&camera, -45 * DEG2RAD, true, true, false);
}
else if (camera.Projection == CameraProjection.Orthographic)
{
// Reset to default view
cameraMode = CameraMode.ThirdPerson;
camera.Position = new Vector3(0.0f, 2.0f, 10.0f);
camera.Target = new Vector3(0.0f, 2.0f, 0.0f);
camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
camera.Projection = CameraProjection.Perspective;
camera.FovY = 60.0f;
}
}
// Update camera computes movement internally depending on the camera mode
// Some default standard keyboard/mouse inputs are hardcoded to simplify use
// For advance camera controls, it's reecommended to compute camera movement manually
UpdateCamera(ref camera, cameraMode);
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(Color.RayWhite);
BeginMode3D(camera);
// Draw ground
DrawPlane(new Vector3(0.0f, 0.0f, 0.0f), new Vector2(32.0f, 32.0f), Color.LightGray);
// Draw a blue wall
DrawCube(new Vector3(-16.0f, 2.5f, 0.0f), 1.0f, 5.0f, 32.0f, Color.Blue);
// Draw a green wall
DrawCube(new Vector3(16.0f, 2.5f, 0.0f), 1.0f, 5.0f, 32.0f, Color.Lime);
// Draw a yellow wall
DrawCube(new Vector3(0.0f, 2.5f, 16.0f), 32.0f, 5.0f, 1.0f, Color.Gold);
// Draw some cubes around
for (int i = 0; i < MaxColumns; i++)
{
DrawCube(positions[i], 2.0f, heights[i], 2.0f, colors[i]);
DrawCubeWires(positions[i], 2.0f, heights[i], 2.0f, Color.Maroon);
}
// Draw player cube
if (cameraMode == CameraMode.ThirdPerson)
{
DrawCube(camera.Target, 0.5f, 0.5f, 0.5f, Color.Purple);
DrawCubeWires(camera.Target, 0.5f, 0.5f, 0.5f, Color.DarkPurple);
}
EndMode3D();
// Draw info boxes
DrawRectangle(5, 5, 330, 100, ColorAlpha(Color.SkyBlue, 0.5f));
DrawRectangleLines(10, 10, 330, 100, Color.Blue);
DrawText("Camera controls:", 15, 15, 10, Color.Black);
DrawText("- Move keys: W, A, S, D, Space, Left-Ctrl", 15, 30, 10, Color.Black);
DrawText("- Look around: arrow keys or mouse", 15, 45, 10, Color.Black);
DrawText("- Camera mode keys: 1, 2, 3, 4", 15, 60, 10, Color.Black);
DrawText("- Zoom keys: num-plus, num-minus or mouse scroll", 15, 75, 10, Color.Black);
DrawText("- Camera projection key: P", 15, 90, 10, Color.Black);
DrawRectangle(600, 5, 195, 100, Fade(Color.SkyBlue, 0.5f));
DrawRectangleLines(600, 5, 195, 100, Color.Blue);
DrawText("Camera status:", 610, 15, 10, Color.Black);
DrawText($"- Mode: {cameraMode}", 610, 30, 10, Color.Black);
DrawText($"- Projection: {camera.Projection}", 610, 45, 10, Color.Black);
DrawText($"- Position: {camera.Position}", 610, 60, 10, Color.Black);
DrawText($"- Target: {camera.Target}", 610, 75, 10, Color.Black);
DrawText($"- Up: {camera.Up}", 610, 90, 10, Color.Black);
EndDrawing();
//----------------------------------------------------------------------------------
game.Update();
}
game.Unload();
// De-Initialization
//--------------------------------------------------------------------------------------
CloseWindow();
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;