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+/*******************************************************************************************
+*
+* raylib [models] example - Load models vox (MagicaVoxel)
+*
+* Example originally created with raylib 4.0, last time updated with raylib 4.0
+*
+* Example contributed by Johann Nadalutti (@procfxgen) and reviewed by Ramon Santamaria (@raysan5)
+*
+* 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) 2021-2023 Johann Nadalutti (@procfxgen) and Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include "raylib.h"
+
+#include "raymath.h" // Required for: MatrixTranslate()
+
+#define MAX_VOX_FILES 3
+
+//------------------------------------------------------------------------------------
+// Program main entry point
+//------------------------------------------------------------------------------------
+int main(void)
+{
+ // Initialization
+ //--------------------------------------------------------------------------------------
+ const int screenWidth = 800;
+ const int screenHeight = 450;
+
+ const char *voxFileNames[] = {
+ "resources/models/vox/chr_knight.vox",
+ "resources/models/vox/chr_sword.vox",
+ "resources/models/vox/monu9.vox"
+ };
+
+ InitWindow(screenWidth, screenHeight, "raylib [models] example - magicavoxel loading");
+
+ // Define the camera to look into our 3d world
+ Camera camera = { 0 };
+ camera.position = (Vector3){ 10.0f, 10.0f, 10.0f }; // Camera position
+ camera.target = (Vector3){ 0.0f, 0.0f, 0.0f }; // Camera looking at point
+ camera.up = (Vector3){ 0.0f, 1.0f, 0.0f }; // Camera up vector (rotation towards target)
+ camera.fovy = 45.0f; // Camera field-of-view Y
+ camera.projection = CAMERA_PERSPECTIVE; // Camera projection type
+
+ // Load MagicaVoxel files
+ Model models[MAX_VOX_FILES] = { 0 };
+
+ for (int i = 0; i < MAX_VOX_FILES; i++)
+ {
+ // Load VOX file and measure time
+ double t0 = GetTime()*1000.0;
+ models[i] = LoadModel(voxFileNames[i]);
+ double t1 = GetTime()*1000.0;
+
+ TraceLog(LOG_WARNING, TextFormat("[%s] File loaded in %.3f ms", voxFileNames[i], t1 - t0));
+
+ // Compute model translation matrix to center model on draw position (0, 0 , 0)
+ BoundingBox bb = GetModelBoundingBox(models[i]);
+ Vector3 center = { 0 };
+ center.x = bb.min.x + (((bb.max.x - bb.min.x)/2));
+ center.z = bb.min.z + (((bb.max.z - bb.min.z)/2));
+
+ Matrix matTranslate = MatrixTranslate(-center.x, 0, -center.z);
+ models[i].transform = matTranslate;
+ }
+
+ int currentModel = 0;
+
+ SetTargetFPS(60); // Set our game to run at 60 frames-per-second
+ //--------------------------------------------------------------------------------------
+
+ // Main game loop
+ while (!WindowShouldClose()) // Detect window close button or ESC key
+ {
+ // Update
+ //----------------------------------------------------------------------------------
+ UpdateCamera(&camera, CAMERA_ORBITAL);
+
+ // Cycle between models on mouse click
+ if (IsMouseButtonPressed(MOUSE_BUTTON_LEFT)) currentModel = (currentModel + 1)%MAX_VOX_FILES;
+
+ // Cycle between models on key pressed
+ if (IsKeyPressed(KEY_RIGHT))
+ {
+ currentModel++;
+ if (currentModel >= MAX_VOX_FILES) currentModel = 0;
+ }
+ else if (IsKeyPressed(KEY_LEFT))
+ {
+ currentModel--;
+ if (currentModel < 0) currentModel = MAX_VOX_FILES - 1;
+ }
+ //----------------------------------------------------------------------------------
+
+ // Draw
+ //----------------------------------------------------------------------------------
+ BeginDrawing();
+
+ ClearBackground(RAYWHITE);
+
+ // Draw 3D model
+ BeginMode3D(camera);
+
+ DrawModel(models[currentModel], (Vector3){ 0, 0, 0 }, 1.0f, WHITE);
+ DrawGrid(10, 1.0);
+
+ EndMode3D();
+
+ // Display info
+ DrawRectangle(10, 400, 310, 30, Fade(SKYBLUE, 0.5f));
+ DrawRectangleLines(10, 400, 310, 30, Fade(DARKBLUE, 0.5f));
+ DrawText("MOUSE LEFT BUTTON to CYCLE VOX MODELS", 40, 410, 10, BLUE);
+ DrawText(TextFormat("File: %s", GetFileName(voxFileNames[currentModel])), 10, 10, 20, GRAY);
+
+ EndDrawing();
+ //----------------------------------------------------------------------------------
+ }
+
+ // De-Initialization
+ //--------------------------------------------------------------------------------------
+ // Unload models data (GPU VRAM)
+ for (int i = 0; i < MAX_VOX_FILES; i++) UnloadModel(models[i]);
+
+ CloseWindow(); // Close window and OpenGL context
+ //--------------------------------------------------------------------------------------
+
+ return 0;
+}
+
+