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

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tiger tiger tiger 2026-07-17 08:22:54 +02:00
commit f804ab7773
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141
Examples/Models/HeightmapDemo.cs
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@ -1,11 +1,15 @@
/*******************************************************************************************
*
* raylib [models] example - Heightmap loading and drawing
* raylib [models] example - heightmap rendering
*
* This example has been created using raylib 1.8 (www.raylib.com)
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
* Example complexity rating: [★☆☆☆] 1/4
*
* Copyright (c) 2015 Ramon Santamaria (@raysan5)
* Example originally created with raylib 1.8, last time updated with raylib 3.5
*
* 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)
*
********************************************************************************************/
@ -14,77 +18,102 @@ using static Raylib_cs.Raylib;
namespace Examples.Models;
public class HeightmapDemo
public partial class HeightmapDemo : IExample
{
public static int Main()
private const int screenWidth = 800;
private const int screenHeight = 450;
public string Name => "Models / Heightmap Demo";
public string Title => "raylib [models] example - heightmap rendering";
private Camera3D camera;
private Texture2D texture;
private Model model;
private Vector3 mapPosition;
public void Init()
{
// Initialization
//--------------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [models] example - heightmap loading and drawing");
// Define our custom camera to look into our 3d world
Camera3D camera = new();
camera.Position = new Vector3(18.0f, 16.0f, 18.0f);
camera.Target = new Vector3(0.0f, 0.0f, 0.0f);
camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
camera.FovY = 45.0f;
camera.Projection = CameraProjection.Perspective;
camera = new();
camera.Position = new Vector3(18.0f, 21.0f, 18.0f); // Camera position
camera.Target = new Vector3(0.0f, 0.0f, 0.0f); // Camera looking at point
camera.Up = new Vector3(0.0f, 1.0f, 0.0f); // Camera up vector (rotation towards target)
camera.FovY = 45.0f; // Camera field-of-view Y
camera.Projection = CameraProjection.Perspective; // Camera projection type
Image image = LoadImage("resources/heightmap.png");
Texture2D texture = LoadTextureFromImage(image);
var image = LoadImage("resources/heightmap.png"); // Load heightmap image (RAM)
texture = LoadTextureFromImage(image); // Convert image to texture (VRAM)
Mesh mesh = GenMeshHeightmap(image, new Vector3(16, 8, 16));
Model model = LoadModelFromMesh(mesh);
var mesh = GenMeshHeightmap(image, new Vector3(16, 8, 16)); // Generate heightmap mesh (RAM and VRAM)
model = LoadModelFromMesh(mesh); // Load model from generated mesh
// Set map diffuse texture
Raylib.SetMaterialTexture(ref model, 0, MaterialMapIndex.Albedo, ref texture);
Vector3 mapPosition = new(-8.0f, 0.0f, -8.0f);
mapPosition = new(-8.0f, 0.0f, -8.0f); // Define model position
UnloadImage(image);
UnloadImage(image); // Unload heightmap image from RAM, already uploaded to VRAM
}
SetTargetFPS(60);
public void Update()
{
// Update
//----------------------------------------------------------------------------------
UpdateCamera(ref camera, CameraMode.Orbital);
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(Color.RayWhite);
BeginMode3D(camera);
DrawModel(model, mapPosition, 1.0f, Color.Red);
DrawGrid(20, 1.0f);
EndMode3D();
DrawTexture(texture, screenWidth - texture.Width - 20, 20, Color.White);
DrawRectangleLines(screenWidth - texture.Width - 20, 20, texture.Width, texture.Height, Color.Green);
DrawFPS(10, 10);
EndDrawing();
//----------------------------------------------------------------------------------
}
public void Unload()
{
UnloadTexture(texture); // Unload texture
UnloadModel(model); // Unload model
}
public static int Main()
{
// Initialization
//--------------------------------------------------------------------------------------
InitWindow(screenWidth, screenHeight, "raylib [models] example - heightmap rendering");
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
//--------------------------------------------------------------------------------------
var game = new HeightmapDemo();
game.Init();
// Main game loop
while (!WindowShouldClose())
while (!WindowShouldClose()) // Detect window close button or ESC key
{
// Update
//----------------------------------------------------------------------------------
UpdateCamera(ref camera, CameraMode.Orbital);
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(Color.RayWhite);
BeginMode3D(camera);
DrawModel(model, mapPosition, 1.0f, Color.Red);
DrawGrid(20, 1.0f);
EndMode3D();
DrawTexture(texture, screenWidth - texture.Width - 20, 20, Color.White);
DrawRectangleLines(screenWidth - texture.Width - 20, 20, texture.Width, texture.Height, Color.Green);
DrawFPS(10, 10);
EndDrawing();
//----------------------------------------------------------------------------------
game.Update();
}
game.Unload();
// De-Initialization
//--------------------------------------------------------------------------------------
UnloadTexture(texture);
UnloadModel(model);
CloseWindow();
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;