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/*******************************************************************************************
*
* raylib [models] example - OBJ models viewer
*
* This example has been created using raylib 2.0 (www.raylib.com)
* raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
* Copyright (c) 2014-2019 Ramon Santamaria (@raysan5)
*
********************************************************************************************/
#include "raylib.h"
#include <string.h> // Required for: strcpy()
#if defined(PLATFORM_WEB)
#include <emscripten/emscripten.h>
#endif
//----------------------------------------------------------------------------------
// Global Variables Definition
//----------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
// NOTE: Textures MUST be loaded after Window initialization (OpenGL context is required)
Camera camera = { 0 };
Model model = { 0 };
Texture2D texture = { 0 };
Vector3 position = { 0.0f, 0.0f, 0.0f };
BoundingBox bounds = { 0 };
bool selected = false; // Selected object flag
char objFilename[64] = "turret.obj";
//----------------------------------------------------------------------------------
// Module Functions Declaration
//----------------------------------------------------------------------------------
void UpdateDrawFrame(void); // Update and Draw one frame
//----------------------------------------------------------------------------------
// Program Main Entry Point
//----------------------------------------------------------------------------------
int main(void)
{
// Initialization
//--------------------------------------------------------------------------------------
InitWindow(screenWidth, screenHeight, "raylib example - obj viewer");
// Define the camera to look into our 3d world
camera = (Camera){{ 30.0f, 30.0f, 30.0f }, { 0.0f, 10.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 };
model = LoadModel("resources/models/turret.obj"); // Load default model obj
texture = LoadTexture("resources/models/turret_diffuse.png"); // Load default model texture
model.materials[0].maps[MAP_DIFFUSE].texture = texture; // Bind texture to model
bounds = MeshBoundingBox(model.meshes[0]); // Set model bounds
SetCameraMode(camera, CAMERA_FREE); // Set a free 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
//--------------------------------------------------------------------------------------
UnloadModel(model); // Unload model
ClearDroppedFiles(); // Clear internal buffers
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}
//----------------------------------------------------------------------------------
// Module Functions Definition
//----------------------------------------------------------------------------------
void UpdateDrawFrame(void)
{
// Update
//----------------------------------------------------------------------------------
if (IsFileDropped())
{
int count = 0;
char **droppedFiles = GetDroppedFiles(&count);
if (count == 1)
{
if (IsFileExtension(droppedFiles[0], ".obj"))
{
for (int i = 0; i < model.meshCount; i++) UnloadMesh(&model.meshes[i]);
model.meshes = LoadMeshes(droppedFiles[0], &model.meshCount);
bounds = MeshBoundingBox(model.meshes[0]);
}
else if (IsFileExtension(droppedFiles[0], ".png"))
{
UnloadTexture(texture);
texture = LoadTexture(droppedFiles[0]);
model.materials[0].maps[MAP_DIFFUSE].texture = texture;
}
strcpy(objFilename, GetFileName(droppedFiles[0]));
}
ClearDroppedFiles(); // Clear internal buffers
}
UpdateCamera(&camera);
// Select model on mouse click
if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON))
{
// Check collision between ray and box
if (CheckCollisionRayBox(GetMouseRay(GetMousePosition(), camera), bounds)) selected = !selected;
else selected = false;
}
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
BeginMode3D(camera);
DrawModel(model, position, 1.0f, WHITE); // Draw 3d model with texture
DrawGrid(20.0, 10.0); // Draw a grid
if (selected) DrawBoundingBox(bounds, GREEN);
EndMode3D();
DrawText("Free camera default controls:", 10, 20, 10, DARKGRAY);
DrawText("- Mouse Wheel to Zoom in-out", 20, 40, 10, GRAY);
DrawText("- Mouse Wheel Pressed to Pan", 20, 60, 10, GRAY);
DrawText("- Alt + Mouse Wheel Pressed to Rotate", 20, 80, 10, GRAY);
DrawText("- Alt + Ctrl + Mouse Wheel Pressed for Smooth Zoom", 20, 100, 10, GRAY);
DrawText("Drag & drop .obj/.png to load mesh/texture.", 10, GetScreenHeight() - 20, 10, DARKGRAY);
DrawText(FormatText("Current file: %s", objFilename), 250, GetScreenHeight() - 20, 10, GRAY);
if (selected) DrawText("MODEL SELECTED", GetScreenWidth() - 110, 10, 10, GREEN);
DrawText("(c) Turret 3D model by Alberto Cano", screenWidth - 200, screenHeight - 20, 10, GRAY);
EndDrawing();
//----------------------------------------------------------------------------------
}
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