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Moved from @raysan5/raylib/docs

1 files changed, 111 insertions, 0 deletions

diff --git a/examples/web/models/models_heightmap.c b/examples/web/models/models_heightmap.c
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+/*******************************************************************************************
+*
+*   raylib [models] example - Heightmap loading and drawing  (adapted for HTML5 platform)
+*
+*   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)
+*
+*   Copyright (c) 2015 Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include "raylib.h"
+
+#if defined(PLATFORM_WEB)
+    #include <emscripten/emscripten.h>
+#endif
+
+//----------------------------------------------------------------------------------
+// Global Variables Definition
+//----------------------------------------------------------------------------------
+int screenWidth = 800;
+int screenHeight = 450;
+
+// Define our custom camera to look into our 3d world
+Camera camera = {{ 18.0f, 16.0f, 18.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f };
+
+Texture2D texture;
+Model map;
+
+Vector3 mapPosition = { -8.0f, 0.0f, -8.0f };	// Set model position (depends on model scaling!)
+
+//----------------------------------------------------------------------------------
+// Module Functions Declaration
+//----------------------------------------------------------------------------------
+void UpdateDrawFrame(void);     // Update and Draw one frame
+
+//----------------------------------------------------------------------------------
+// Main Enry Point
+//----------------------------------------------------------------------------------
+int main()
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    InitWindow(screenWidth, screenHeight, "raylib [models] example - heightmap loading and drawing");
+
+    Image image = LoadImage("resources/heightmap.png");     // Load heightmap image (RAM)
+    texture = LoadTextureFromImage(image);                  // Convert image to texture (VRAM)
+    map = LoadHeightmap(image, (Vector3){ 16, 8, 16 });     // Load heightmap model with defined size
+    map.material.texDiffuse = texture;                      // Set map diffuse texture
+
+    UnloadImage(image);                         // Unload heightmap image from RAM, already uploaded to VRAM
+    
+    SetCameraMode(camera, CAMERA_ORBITAL);      // Set an orbital camera mode
+
+#if defined(PLATFORM_WEB)
+    emscripten_set_main_loop(UpdateDrawFrame, 0, 1);
+#else
+    SetTargetFPS(60);   // Set our game to run at 60 frames-per-second
+    //--------------------------------------------------------------------------------------
+    
+    // Main game loop
+    while (!WindowShouldClose())    // Detect window close button or ESC key
+    {
+        UpdateDrawFrame();
+    }
+#endif
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    UnloadTexture(texture);     // Unload texture
+    UnloadModel(map);           // Unload model
+
+    CloseWindow();              // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+}
+
+//----------------------------------------------------------------------------------
+// Module Functions Definition
+//----------------------------------------------------------------------------------
+void UpdateDrawFrame(void)
+{
+    // Update
+    //----------------------------------------------------------------------------------
+    UpdateCamera(&camera);          // Update internal camera and our camera
+    //----------------------------------------------------------------------------------
+
+    // Draw
+    //----------------------------------------------------------------------------------
+    BeginDrawing();
+
+        ClearBackground(RAYWHITE);
+
+        Begin3dMode(camera);
+
+            // NOTE: Model is scaled to 1/4 of its original size (128x128 units)
+            DrawModel(map, mapPosition, 1.0f, RED);
+
+        	DrawGrid(20, 1.0f);
+
+            End3dMode();
+            
+            DrawTexture(texture, screenWidth - texture.width - 20, 20, WHITE);
+            DrawRectangleLines(screenWidth - texture.width - 20, 20, texture.width, texture.height, GREEN);
+
+        DrawFPS(10, 10);
+
+    EndDrawing();
+    //----------------------------------------------------------------------------------
+}
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