WASM examples (+ backports of new official examples) (#344)
* 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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236 changed files with 40405 additions and 10896 deletions
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@ -2,36 +2,44 @@
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*
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* raylib [core] example - 2d camera platformer
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*
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* This example has been created using raylib 2.5 (www.raylib.com)
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* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
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* Example complexity rating: [★★★☆] 3/4
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*
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* Example originally created with raylib 2.5, last time updated with raylib 3.0
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*
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* Example contributed by arvyy (@arvyy) and reviewed by Ramon Santamaria (@raysan5)
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*
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* Copyright (c) 2019 arvyy (@arvyy)
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* Example licensed under an unmodified zlib/libpng license, which is an OSI-certified,
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* BSD-like license that allows static linking with closed source software
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*
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* Copyright (c) 2019-2025 arvyy (@arvyy)
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*
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********************************************************************************************/
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using System;
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using System.Numerics;
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using static Raylib_cs.Raylib;
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using static Raylib_cs.Raymath;
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namespace Examples.Core;
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public class Camera2dPlatformer
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public partial class Camera2dPlatformer : IExample
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{
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const int G = 400;
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const float PlayerJumpSpeed = 350.0f;
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const float PlayerHorSpeed = 200.0f;
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private const int screenWidth = 800;
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private const int screenHeight = 450;
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struct Player
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private const int G = 400;
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private const float PlayerJumpSpeed = 350.0f;
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private const float PlayerHorSpeed = 200.0f;
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public string Name => "Core / 2D Camera Platformer";
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public string Title => "raylib [core] example - 2d camera platformer";
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private struct Player
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{
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public Vector2 Position;
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public float Speed;
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public bool CanJump;
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}
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struct EnvItem
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private struct EnvItem
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{
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public Rectangle Rect;
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public int Blocking;
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@ -45,7 +53,7 @@ public class Camera2dPlatformer
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}
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}
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delegate void CameraUpdaterCallback(
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private delegate void CameraUpdaterCallback(
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ref Camera2D camera,
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ref Player player,
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EnvItem[] envItems,
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@ -54,21 +62,22 @@ public class Camera2dPlatformer
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int height
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);
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public static int Main()
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private Player player;
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private EnvItem[] envItems;
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private Camera2D camera;
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private CameraUpdaterCallback[] cameraUpdaters;
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private int cameraOption;
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private int cameraUpdatersLength;
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private string[] cameraDescriptions;
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public void Init()
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{
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// Initialization
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//--------------------------------------------------------------------------------------
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const int screenWidth = 800;
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const int screenHeight = 450;
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InitWindow(screenWidth, screenHeight, "raylib [core] example - 2d camera");
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Player player = new();
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player = new();
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player.Position = new Vector2(400, 280);
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player.Speed = 0;
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player.CanJump = false;
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EnvItem[] envItems = new EnvItem[]
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envItems = new EnvItem[]
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{
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new EnvItem(new Rectangle(0, 0, 1000, 400), 0, Color.LightGray),
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new EnvItem(new Rectangle(0, 400, 1000, 200), 1, Color.Gray),
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@ -77,14 +86,14 @@ public class Camera2dPlatformer
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new EnvItem(new Rectangle(650, 300, 100, 10), 1, Color.Gray)
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};
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Camera2D camera = new();
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camera = new();
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camera.Target = player.Position;
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camera.Offset = new Vector2(screenWidth / 2, screenHeight / 2);
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camera.Offset = new Vector2(screenWidth / 2.0f, screenHeight / 2.0f);
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camera.Rotation = 0.0f;
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camera.Zoom = 1.0f;
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// Store callbacks to the multiple update camera functions
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CameraUpdaterCallback[] cameraUpdaters = new CameraUpdaterCallback[]
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// Store pointers to the multiple update camera functions
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cameraUpdaters = new CameraUpdaterCallback[]
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{
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UpdateCameraCenter,
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UpdateCameraCenterInsideMap,
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@ -93,93 +102,89 @@ public class Camera2dPlatformer
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UpdateCameraPlayerBoundsPush
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};
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int cameraOption = 0;
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int cameraUpdatersLength = cameraUpdaters.Length;
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cameraOption = 0;
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cameraUpdatersLength = cameraUpdaters.Length;
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string[] cameraDescriptions = new string[]{
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cameraDescriptions = new string[]{
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"Follow player center",
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"Follow player center, but clamp to map edges",
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"Follow player center; smoothed",
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"Follow player center horizontally; update player center vertically after landing",
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"Player push camera on getting too close to screen edge"
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};
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SetTargetFPS(60);
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//--------------------------------------------------------------------------------------
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// Main game loop
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while (!WindowShouldClose())
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{
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// Update
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//----------------------------------------------------------------------------------
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float deltaTime = GetFrameTime();
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UpdatePlayer(ref player, envItems, deltaTime);
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camera.Zoom += ((float)GetMouseWheelMove() * 0.05f);
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if (camera.Zoom > 3.0f)
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{
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camera.Zoom = 3.0f;
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}
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else if (camera.Zoom < 0.25f)
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{
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camera.Zoom = 0.25f;
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}
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if (IsKeyPressed(KeyboardKey.R))
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{
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camera.Zoom = 1.0f;
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player.Position = new Vector2(400, 280);
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}
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if (IsKeyPressed(KeyboardKey.C))
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{
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cameraOption = (cameraOption + 1) % cameraUpdatersLength;
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}
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// Call update camera function by its pointer
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cameraUpdaters[cameraOption](ref camera, ref player, envItems, deltaTime, screenWidth, screenHeight);
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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BeginDrawing();
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ClearBackground(Color.LightGray);
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BeginMode2D(camera);
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for (int i = 0; i < envItems.Length; i++)
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{
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DrawRectangleRec(envItems[i].Rect, envItems[i].Color);
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}
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Rectangle playerRect = new(player.Position.X - 20, player.Position.Y - 40, 40, 40);
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DrawRectangleRec(playerRect, Color.Red);
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EndMode2D();
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DrawText("Controls:", 20, 20, 10, Color.Black);
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DrawText("- Right/Left to move", 40, 40, 10, Color.DarkGray);
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DrawText("- Space to jump", 40, 60, 10, Color.DarkGray);
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DrawText("- Mouse Wheel to Zoom in-out, R to reset zoom", 40, 80, 10, Color.DarkGray);
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DrawText("- C to change camera mode", 40, 100, 10, Color.DarkGray);
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DrawText("Current camera mode:", 20, 120, 10, Color.Black);
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DrawText(cameraDescriptions[cameraOption], 40, 140, 10, Color.DarkGray);
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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// De-Initialization
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//--------------------------------------------------------------------------------------
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CloseWindow();
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//--------------------------------------------------------------------------------------
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return 0;
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}
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static void UpdatePlayer(ref Player player, EnvItem[] envItems, float delta)
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public void Update()
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{
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// Update
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//----------------------------------------------------------------------------------
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var deltaTime = GetFrameTime();
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UpdatePlayer(ref player, envItems, deltaTime);
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camera.Zoom += ((float)GetMouseWheelMove() * 0.05f);
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if (camera.Zoom > 3.0f)
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{
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camera.Zoom = 3.0f;
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}
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else if (camera.Zoom < 0.25f)
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{
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camera.Zoom = 0.25f;
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}
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if (IsKeyPressed(KeyboardKey.R))
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{
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camera.Zoom = 1.0f;
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player.Position = new Vector2(400, 280);
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}
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if (IsKeyPressed(KeyboardKey.C))
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{
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cameraOption = (cameraOption + 1) % cameraUpdatersLength;
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}
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// Call update camera function by its pointer
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cameraUpdaters[cameraOption](ref camera, ref player, envItems, deltaTime, screenWidth, screenHeight);
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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BeginDrawing();
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ClearBackground(Color.LightGray);
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BeginMode2D(camera);
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for (var i = 0; i < envItems.Length; i++)
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{
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DrawRectangleRec(envItems[i].Rect, envItems[i].Color);
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}
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Rectangle playerRect = new(player.Position.X - 20, player.Position.Y - 40, 40.0f, 40.0f);
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DrawRectangleRec(playerRect, Color.Red);
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DrawCircleV(player.Position, 5.0f, Color.Gold);
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EndMode2D();
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DrawText("Controls:", 20, 20, 10, Color.Black);
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DrawText("- Right/Left to move", 40, 40, 10, Color.DarkGray);
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DrawText("- Space to jump", 40, 60, 10, Color.DarkGray);
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DrawText("- Mouse Wheel to Zoom in-out", 40, 80, 10, Color.DarkGray);
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DrawText("- R to reset position + zoom", 40, 100, 10, Color.DarkGray);
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DrawText("- C to change camera mode", 40, 120, 10, Color.DarkGray);
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DrawText("Current camera mode:", 20, 140, 10, Color.Black);
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DrawText(cameraDescriptions[cameraOption], 40, 160, 10, Color.DarkGray);
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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public void Unload()
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{
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}
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private static void UpdatePlayer(ref Player player, EnvItem[] envItems, float delta)
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{
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if (IsKeyDown(KeyboardKey.Left))
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{
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player.CanJump = false;
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}
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int hitObstacle = 0;
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for (int i = 0; i < envItems.Length; i++)
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var hitObstacle = 0;
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for (var i = 0; i < envItems.Length; i++)
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{
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EnvItem ei = envItems[i];
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Vector2 p = player.Position;
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var ei = envItems[i];
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var p = player.Position;
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if (ei.Blocking != 0 &&
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ei.Rect.X <= p.X &&
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ei.Rect.X + ei.Rect.Width >= p.X &&
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hitObstacle = 1;
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player.Speed = 0.0f;
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player.Position.Y = ei.Rect.Y;
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break;
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}
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}
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@ -226,7 +232,7 @@ public class Camera2dPlatformer
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}
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}
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static void UpdateCameraCenter(
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private static void UpdateCameraCenter(
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ref Camera2D camera,
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ref Player player,
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EnvItem[] envItems,
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@ -235,11 +241,11 @@ public class Camera2dPlatformer
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int height
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)
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{
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camera.Offset = new Vector2(width / 2, height / 2);
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camera.Offset = new Vector2(width / 2.0f, height / 2.0f);
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camera.Target = player.Position;
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}
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static void UpdateCameraCenterInsideMap(
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private static void UpdateCameraCenterInsideMap(
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ref Camera2D camera,
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ref Player player,
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EnvItem[] envItems,
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@ -248,43 +254,43 @@ public class Camera2dPlatformer
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int height)
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{
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camera.Target = player.Position;
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camera.Offset = new Vector2(width / 2, height / 2);
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camera.Offset = new Vector2(width / 2.0f, height / 2.0f);
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float minX = 1000, minY = 1000, maxX = -1000, maxY = -1000;
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for (int i = 0; i < envItems.Length; i++)
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for (var i = 0; i < envItems.Length; i++)
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{
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EnvItem ei = envItems[i];
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var ei = envItems[i];
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minX = Math.Min(ei.Rect.X, minX);
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maxX = Math.Max(ei.Rect.X + ei.Rect.Width, maxX);
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minY = Math.Min(ei.Rect.Y, minY);
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maxY = Math.Max(ei.Rect.Y + ei.Rect.Height, maxY);
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}
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Vector2 max = GetWorldToScreen2D(new Vector2(maxX, maxY), camera);
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Vector2 min = GetWorldToScreen2D(new Vector2(minX, minY), camera);
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var max = GetWorldToScreen2D(new Vector2(maxX, maxY), camera);
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var min = GetWorldToScreen2D(new Vector2(minX, minY), camera);
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if (max.X < width)
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{
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camera.Offset.X = width - (max.X - width / 2);
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camera.Offset.X = width - (max.X - width / 2.0f);
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}
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if (max.Y < height)
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{
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camera.Offset.Y = height - (max.Y - height / 2);
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camera.Offset.Y = height - (max.Y - height / 2.0f);
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}
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if (min.X > 0)
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{
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camera.Offset.X = width / 2 - min.X;
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camera.Offset.X = width / 2.0f - min.X;
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}
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if (min.Y > 0)
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{
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camera.Offset.Y = height / 2 - min.Y;
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camera.Offset.Y = height / 2.0f - min.Y;
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}
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}
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static void UpdateCameraCenterSmoothFollow(
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private static void UpdateCameraCenterSmoothFollow(
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ref Camera2D camera,
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ref Player player,
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EnvItem[] envItems,
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@ -297,18 +303,18 @@ public class Camera2dPlatformer
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const float minEffectLength = 10;
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const float fractionSpeed = 0.8f;
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camera.Offset = new Vector2(width / 2, height / 2);
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Vector2 diff = Vector2Subtract(player.Position, camera.Target);
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float length = Vector2Length(diff);
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camera.Offset = new Vector2(width / 2.0f, height / 2.0f);
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var diff = Vector2Subtract(player.Position, camera.Target);
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var length = Vector2Length(diff);
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if (length > minEffectLength)
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{
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float speed = Math.Max(fractionSpeed * length, minSpeed);
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var speed = Math.Max(fractionSpeed * length, minSpeed);
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camera.Target = Vector2Add(camera.Target, Vector2Scale(diff, speed * delta / length));
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}
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}
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static void UpdateCameraEvenOutOnLanding(
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private static void UpdateCameraEvenOutOnLanding(
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ref Camera2D camera,
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ref Player player,
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EnvItem[] envItems,
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@ -318,10 +324,10 @@ public class Camera2dPlatformer
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)
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{
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float evenOutSpeed = 700;
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int eveningOut = 0;
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float evenOutTarget = 0.0f;
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var eveningOut = 0;
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var evenOutTarget = 0.0f;
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camera.Offset = new Vector2(width / 2, height / 2);
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camera.Offset = new Vector2(width / 2.0f, height / 2.0f);
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camera.Target.X = player.Position.X;
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if (eveningOut != 0)
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@ -357,7 +363,7 @@ public class Camera2dPlatformer
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}
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}
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static void UpdateCameraPlayerBoundsPush(
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private static void UpdateCameraPlayerBoundsPush(
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ref Camera2D camera,
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ref Player player,
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EnvItem[] envItems,
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|
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@ -368,11 +374,11 @@ public class Camera2dPlatformer
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{
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Vector2 bbox = new(0.2f, 0.2f);
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Vector2 bboxWorldMin = GetScreenToWorld2D(
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var bboxWorldMin = GetScreenToWorld2D(
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new Vector2((1 - bbox.X) * 0.5f * width, (1 - bbox.Y) * 0.5f * height),
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camera
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);
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Vector2 bboxWorldMax = GetScreenToWorld2D(
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var bboxWorldMax = GetScreenToWorld2D(
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new Vector2((1 + bbox.X) * 0.5f * width,
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(1 + bbox.Y) * 0.5f * height),
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camera
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|
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@ -399,4 +405,32 @@ public class Camera2dPlatformer
|
|||
camera.Target.Y = bboxWorldMin.Y + (player.Position.Y - bboxWorldMax.Y);
|
||||
}
|
||||
}
|
||||
|
||||
public static int Main()
|
||||
{
|
||||
// Initialization
|
||||
//--------------------------------------------------------------------------------------
|
||||
InitWindow(screenWidth, screenHeight, "raylib [core] example - 2d camera platformer");
|
||||
|
||||
SetTargetFPS(60);
|
||||
//--------------------------------------------------------------------------------------
|
||||
|
||||
var game = new Camera2dPlatformer();
|
||||
game.Init();
|
||||
|
||||
// Main game loop
|
||||
while (!WindowShouldClose())
|
||||
{
|
||||
game.Update();
|
||||
}
|
||||
|
||||
game.Unload();
|
||||
|
||||
// De-Initialization
|
||||
//--------------------------------------------------------------------------------------
|
||||
CloseWindow(); // Close window and OpenGL context
|
||||
//--------------------------------------------------------------------------------------
|
||||
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue