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128 行
5.1 KiB
128 行
5.1 KiB
/*******************************************************************************************
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*
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* raylib [models] example - OBJ models viewer
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*
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* This example has been created using raylib 2.0 (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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*
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* Copyright (c) 2014-2019 Ramon Santamaria (@raysan5)
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*
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********************************************************************************************/
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#include "raylib.h"
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#include <string.h> // Required for: strcpy()
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int main(void)
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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 example - obj viewer");
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// Define the camera to look into our 3d world
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Camera camera = { { 30.0f, 30.0f, 30.0f }, { 0.0f, 10.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 };
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Model model = LoadModel("resources/models/turret.obj"); // Load default model obj
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Texture2D texture = LoadTexture("resources/models/turret_diffuse.png"); // Load default model texture
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model.materials[0].maps[MAP_DIFFUSE].texture = texture; // Bind texture to model
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Vector3 position = { 0.0, 0.0, 0.0 }; // Set model position
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BoundingBox bounds = MeshBoundingBox(model.meshes[0]); // Set model bounds
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bool selected = false; // Selected object flag
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SetCameraMode(camera, CAMERA_FREE); // Set a free camera mode
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char objFilename[64] = "turret.obj";
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SetTargetFPS(60); // Set our game to run at 60 frames-per-second
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//--------------------------------------------------------------------------------------
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// Main game loop
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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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if (IsFileDropped())
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{
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int count = 0;
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char **droppedFiles = GetDroppedFiles(&count);
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if (count == 1)
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{
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if (IsFileExtension(droppedFiles[0], ".obj"))
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{
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for (int i = 0; i < model.meshCount; i++) UnloadMesh(model.meshes[i]);
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model.meshes = LoadMeshes(droppedFiles[0], &model.meshCount);
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bounds = MeshBoundingBox(model.meshes[0]);
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}
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else if (IsFileExtension(droppedFiles[0], ".png"))
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{
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UnloadTexture(texture);
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texture = LoadTexture(droppedFiles[0]);
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model.materials[0].maps[MAP_DIFFUSE].texture = texture;
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}
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strcpy(objFilename, GetFileName(droppedFiles[0]));
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}
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ClearDroppedFiles(); // Clear internal buffers
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}
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UpdateCamera(&camera);
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// Select model on mouse click
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if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON))
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{
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// Check collision between ray and box
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if (CheckCollisionRayBox(GetMouseRay(GetMousePosition(), camera), bounds)) selected = !selected;
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else selected = false;
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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(RAYWHITE);
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BeginMode3D(camera);
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DrawModel(model, position, 1.0f, WHITE); // Draw 3d model with texture
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DrawGrid(20.0, 10.0); // Draw a grid
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if (selected) DrawBoundingBox(bounds, GREEN);
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EndMode3D();
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DrawText("Free camera default controls:", 10, 20, 10, DARKGRAY);
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DrawText("- Mouse Wheel to Zoom in-out", 20, 40, 10, GRAY);
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DrawText("- Mouse Wheel Pressed to Pan", 20, 60, 10, GRAY);
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DrawText("- Alt + Mouse Wheel Pressed to Rotate", 20, 80, 10, GRAY);
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DrawText("- Alt + Ctrl + Mouse Wheel Pressed for Smooth Zoom", 20, 100, 10, GRAY);
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DrawText("Drag & drop .obj/.png to load mesh/texture.", 10, GetScreenHeight() - 20, 10, DARKGRAY);
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DrawText(FormatText("Current file: %s", objFilename), 250, GetScreenHeight() - 20, 10, GRAY);
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if (selected) DrawText("MODEL SELECTED", GetScreenWidth() - 110, 10, 10, GREEN);
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DrawText("(c) Turret 3D model by Alberto Cano", screenWidth - 200, screenHeight - 20, 10, GRAY);
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EndDrawing();
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//----------------------------------------------------------------------------------
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}
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// De-Initialization
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//--------------------------------------------------------------------------------------
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UnloadTexture(texture); // Unload texture
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UnloadModel(model); // Unload model
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ClearDroppedFiles(); // Clear internal buffers
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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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