Update/merge examples back into main repo (#192)

Examples/Models/AnimationDemo.cs

@@ -0,0 +1,126 @@
+/*******************************************************************************************
+*
+*   raylib [models] example - Load 3d model with animations and play them
+*
+*   This example has been created using raylib 2.5 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Example contributed by Culacant (@culacant) and reviewed by Ramon Santamaria (@raysan5)
+*
+*   Copyright (c) 2019 Culacant (@culacant) and Ramon Santamaria (@raysan5)
+*
+********************************************************************************************
+*
+* To export a model from blender, make sure it is not posed, the vertices need to be in the
+* same position as they would be in edit mode.
+* and that the scale of your models is set to 0. Scaling can be done from the export menu.
+*
+********************************************************************************************/
+
+using System.Numerics;
+using static Raylib_cs.Raylib;
+
+namespace Examples.Models;
+
+public class AnimationDemo
+{
+    public unsafe static int Main()
+    {
+        // Initialization
+        //--------------------------------------------------------------------------------------
+        const int screenWidth = 800;
+        const int screenHeight = 450;
+
+        InitWindow(screenWidth, screenHeight, "raylib [models] example - model animation");
+
+        // Define the camera to look into our 3d world
+        Camera3D camera = new();
+        camera.Position = new Vector3(10.0f, 10.0f, 10.0f);
+        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.CAMERA_PERSPECTIVE;
+
+        Model model = LoadModel("resources/models/iqm/guy.iqm");
+        Texture2D texture = LoadTexture("resources/models/iqm/guytex.png");
+        Raylib.SetMaterialTexture(ref model, 0, MaterialMapIndex.MATERIAL_MAP_ALBEDO, ref texture);
+
+        Vector3 position = new(0.0f, 0.0f, 0.0f);
+        // Load animation data
+        uint animsCount = 0;
+        var anims = LoadModelAnimations("resources/models/iqm/guyanim.iqm", ref animsCount);
+        int animFrameCounter = 0;
+
+        SetTargetFPS(60);
+        //--------------------------------------------------------------------------------------
+
+        // Main game loop
+        while (!WindowShouldClose())
+        {
+            // Update
+            //----------------------------------------------------------------------------------
+            UpdateCamera(ref camera, CameraMode.CAMERA_FREE);
+
+            // Play animation when spacebar is held down
+            if (IsKeyDown(KeyboardKey.KEY_SPACE))
+            {
+                animFrameCounter++;
+                UpdateModelAnimation(model, anims[0], animFrameCounter);
+                if (animFrameCounter >= anims[0].FrameCount)
+                {
+                    animFrameCounter = 0;
+                }
+            }
+            //----------------------------------------------------------------------------------
+
+            // Draw
+            //----------------------------------------------------------------------------------
+            BeginDrawing();
+            ClearBackground(Color.RAYWHITE);
+
+            BeginMode3D(camera);
+
+            DrawModelEx(
+                model,
+                position,
+                new Vector3(1.0f, 0.0f, 0.0f),
+                -90.0f,
+                new Vector3(1.0f, 1.0f, 1.0f),
+                Color.WHITE
+            );
+
+            for (int i = 0; i < model.BoneCount; i++)
+            {
+                var framePoses = anims[0].FramePoses;
+                DrawCube(framePoses[animFrameCounter][i].Translation, 0.2f, 0.2f, 0.2f, Color.RED);
+            }
+
+            DrawGrid(10, 1.0f);
+
+            EndMode3D();
+
+            DrawText("PRESS SPACE to PLAY MODEL ANIMATION", 10, 10, 20, Color.MAROON);
+            DrawText("(c) Guy IQM 3D model by @culacant", screenWidth - 200, screenHeight - 20, 10, Color.GRAY);
+
+            EndDrawing();
+            //----------------------------------------------------------------------------------
+        }
+
+        // De-Initialization
+        //--------------------------------------------------------------------------------------
+        UnloadTexture(texture);
+
+        for (int i = 0; i < animsCount; i++)
+        {
+            UnloadModelAnimation(anims[i]);
+        }
+
+        UnloadModel(model);
+
+        CloseWindow();
+        //--------------------------------------------------------------------------------------
+
+        return 0;
+    }
+}
+