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
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234 changed files with 38997 additions and 10578 deletions
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@ -1,11 +1,15 @@
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/*******************************************************************************************
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*
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* raylib [core] example - World to screen
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* raylib [core] example - world screen
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*
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* This example has been created using raylib 1.3 (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: [★★☆☆] 2/4
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*
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* Copyright (c) 2015 Ramon Santamaria (@raysan5)
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* Example originally created with raylib 1.3, last time updated with raylib 1.4
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*
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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) 2015-2025 Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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@ -14,84 +18,113 @@ using static Raylib_cs.Raylib;
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namespace Examples.Core;
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public class WorldScreen
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public partial class WorldScreen : IExample
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{
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private const int screenWidth = 800;
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private const int screenHeight = 450;
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public string Name => "Core / World to Screen";
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public string Title => "raylib [core] example - world screen";
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public bool CursorDisabled => true;
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private Camera3D camera;
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private Vector3 cubePosition;
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private Vector2 cubeScreenPosition = new(0.0f, 0.0f);
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public void Init()
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{
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// Define the camera to look into our 3d world
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camera = new();
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camera.Position = new Vector3(10.0f, 10.0f, 10.0f); // Camera position
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camera.Target = new Vector3(0.0f, 0.0f, 0.0f); // Camera looking at point
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camera.Up = new Vector3(0.0f, 1.0f, 0.0f); // Camera up vector (rotation towards target)
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camera.FovY = 45.0f; // Camera field-of-view Y
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camera.Projection = CameraProjection.Perspective; // Camera projection type
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cubePosition = new(0.0f, 0.0f, 0.0f);
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}
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public void Update()
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{
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// Update
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//----------------------------------------------------------------------------------
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UpdateCamera(ref camera, CameraMode.ThirdPerson);
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// Calculate cube screen space position (with a little offset to be in top)
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cubeScreenPosition = GetWorldToScreen(
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new Vector3(cubePosition.X, cubePosition.Y + 2.5f, cubePosition.Z),
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camera
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);
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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BeginDrawing();
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ClearBackground(Color.RayWhite);
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BeginMode3D(camera);
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DrawCube(cubePosition, 2.0f, 2.0f, 2.0f, Color.Red);
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DrawCubeWires(cubePosition, 2.0f, 2.0f, 2.0f, Color.Maroon);
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DrawGrid(10, 1.0f);
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EndMode3D();
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DrawText(
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"Enemy: 100/100",
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(int)cubeScreenPosition.X - MeasureText("Enemy: 100/100", 20) / 2,
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(int)cubeScreenPosition.Y,
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20,
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Color.Black
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);
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DrawText(
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$"Cube position in screen space coordinates: [{(int)cubeScreenPosition.X}, {(int)cubeScreenPosition.Y}]",
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10,
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10,
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20,
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Color.Lime
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);
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DrawText("Text 2d should be always on top of the cube", 10, 40, 20, Color.Gray);
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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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public static int Main()
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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 - world screen");
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InitWindow(screenWidth, screenHeight, "raylib [core] example - 3d camera free");
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DisableCursor(); // Limit cursor to relative movement inside the window
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// Define the camera to look into our 3d world
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Camera3D camera = new();
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camera.Position = new Vector3(10.0f, 10.0f, 10.0f);
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camera.Target = new Vector3(0.0f, 0.0f, 0.0f);
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camera.Up = new Vector3(0.0f, 1.0f, 0.0f);
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camera.FovY = 45.0f;
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camera.Projection = CameraProjection.Perspective;
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Vector3 cubePosition = new(0.0f, 0.0f, 0.0f);
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Vector2 cubeScreenPosition;
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SetTargetFPS(60);
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SetTargetFPS(60); // Set our game to run at 60 frames-per-second
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//--------------------------------------------------------------------------------------
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var game = new WorldScreen();
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game.Init();
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// Main game loop
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while (!WindowShouldClose())
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while (!WindowShouldClose()) // Detect window close button or ESC key
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{
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// Update
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//----------------------------------------------------------------------------------
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UpdateCamera(ref camera, CameraMode.Free);
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// Calculate cube screen space position (with a little offset to be in top)
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cubeScreenPosition = GetWorldToScreen(
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new Vector3(cubePosition.X, cubePosition.Y + 2.5f, cubePosition.Z),
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camera
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);
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//----------------------------------------------------------------------------------
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// Draw
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//----------------------------------------------------------------------------------
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BeginDrawing();
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ClearBackground(Color.RayWhite);
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BeginMode3D(camera);
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DrawCube(cubePosition, 2.0f, 2.0f, 2.0f, Color.Red);
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DrawCubeWires(cubePosition, 2.0f, 2.0f, 2.0f, Color.Maroon);
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DrawGrid(10, 1.0f);
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EndMode3D();
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DrawText(
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"Enemy: 100 / 100",
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(int)cubeScreenPosition.X - MeasureText("Enemy: 100 / 100", 20) / 2,
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(int)cubeScreenPosition.Y,
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20,
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Color.Black
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);
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DrawText(
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"Text is always on top of the cube",
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(screenWidth - MeasureText("Text is always on top of the cube", 20)) / 2,
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25,
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20,
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Color.Gray
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);
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EndDrawing();
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//----------------------------------------------------------------------------------
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game.Update();
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}
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game.Unload();
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// De-Initialization
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//--------------------------------------------------------------------------------------
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CloseWindow();
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CloseWindow(); // Close window and OpenGL context
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//--------------------------------------------------------------------------------------
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return 0;
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}
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}
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