int main() { // Initialization //-------------------------------------------------------------------------------------- int screenWidth = 800; int screenHeight = 450; InitWindow(screenWidth, screenHeight, "raylib [models] example - geometric shapes"); // Define the camera to look into our 3d world Camera camera = {{ 0.0f, 10.0f, 10.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, FOVY_PERSPECTIVE, CAMERA_PERSPECTIVE }; 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 //---------------------------------------------------------------------------------- if (IsKeyPressed(KEY_SPACE)) { if (camera.type == CAMERA_PERSPECTIVE) { camera.fovy = WIDTH_ORTHOGRAPHIC; camera.type = CAMERA_ORTHOGRAPHIC; } else { camera.fovy = FOVY_PERSPECTIVE; camera.type = CAMERA_PERSPECTIVE; } } //---------------------------------------------------------------------------------- // Draw //---------------------------------------------------------------------------------- BeginDrawing(); ClearBackground(RAYWHITE); BeginMode3D(camera); DrawCube((Vector3){-4.0f, 0.0f, 2.0f}, 2.0f, 5.0f, 2.0f, RED); DrawCubeWires((Vector3){-4.0f, 0.0f, 2.0f}, 2.0f, 5.0f, 2.0f, GOLD); DrawCubeWires((Vector3){-4.0f, 0.0f, -2.0f}, 3.0f, 6.0f, 2.0f, MAROON); DrawSphere((Vector3){-1.0f, 0.0f, -2.0f}, 1.0f, GREEN); DrawSphereWires((Vector3){1.0f, 0.0f, 2.0f}, 2.0f, 16, 16, LIME); DrawCylinder((Vector3){4.0f, 0.0f, -2.0f}, 1.0f, 2.0f, 3.0f, 4, SKYBLUE); DrawCylinderWires((Vector3){4.0f, 0.0f, -2.0f}, 1.0f, 2.0f, 3.0f, 4, DARKBLUE); DrawCylinderWires((Vector3){4.5f, -1.0f, 2.0f}, 1.0f, 1.0f, 2.0f, 6, BROWN); DrawCylinder((Vector3){1.0f, 0.0f, -4.0f}, 0.0f, 1.5f, 3.0f, 8, GOLD); DrawCylinderWires((Vector3){1.0f, 0.0f, -4.0f}, 0.0f, 1.5f, 3.0f, 8, PINK); DrawGrid(10, 1.0f); // Draw a grid EndMode3D(); DrawText("Press Spacebar to switch camera type", 10, GetScreenHeight() - 30, 20, DARKGRAY); if (camera.type == CAMERA_ORTHOGRAPHIC) DrawText("ORTHOGRAPHIC", 10, 40, 20, BLACK); else if (camera.type == CAMERA_PERSPECTIVE) DrawText("PERSPECTIVE", 10, 40, 20, BLACK); DrawFPS(10, 10); EndDrawing(); //---------------------------------------------------------------------------------- } // De-Initialization //-------------------------------------------------------------------------------------- CloseWindow(); // Close window and OpenGL context //-------------------------------------------------------------------------------------- return 0; }
int main() { // Initialization //-------------------------------------------------------------------------------------- int screenWidth = 800; int screenHeight = 450; InitWindow(screenWidth, screenHeight, "raylib [models] example - box collisions"); // Define the camera to look into our 3d world Camera camera = {{ 0.0f, 10.0f, 10.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 }; Vector3 playerPosition = { 0.0f, 1.0f, 2.0f }; Vector3 playerSize = { 1.0f, 2.0f, 1.0f }; Color playerColor = GREEN; Vector3 enemyBoxPos = { -4.0f, 1.0f, 0.0f }; Vector3 enemyBoxSize = { 2.0f, 2.0f, 2.0f }; Vector3 enemySpherePos = { 4.0f, 0.0f, 0.0f }; float enemySphereSize = 1.5f; bool collision = false; 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 //---------------------------------------------------------------------------------- // Move player if (IsKeyDown(KEY_RIGHT)) playerPosition.x += 0.2f; else if (IsKeyDown(KEY_LEFT)) playerPosition.x -= 0.2f; else if (IsKeyDown(KEY_DOWN)) playerPosition.z += 0.2f; else if (IsKeyDown(KEY_UP)) playerPosition.z -= 0.2f; collision = false; // Check collisions player vs enemy-box if (CheckCollisionBoxes( (BoundingBox){(Vector3){ playerPosition.x - playerSize.x/2, playerPosition.y - playerSize.y/2, playerPosition.z - playerSize.z/2 }, (Vector3){ playerPosition.x + playerSize.x/2, playerPosition.y + playerSize.y/2, playerPosition.z + playerSize.z/2 }}, (BoundingBox){(Vector3){ enemyBoxPos.x - enemyBoxSize.x/2, enemyBoxPos.y - enemyBoxSize.y/2, enemyBoxPos.z - enemyBoxSize.z/2 }, (Vector3){ enemyBoxPos.x + enemyBoxSize.x/2, enemyBoxPos.y + enemyBoxSize.y/2, enemyBoxPos.z + enemyBoxSize.z/2 }})) collision = true; // Check collisions player vs enemy-sphere if (CheckCollisionBoxSphere( (BoundingBox){(Vector3){ playerPosition.x - playerSize.x/2, playerPosition.y - playerSize.y/2, playerPosition.z - playerSize.z/2 }, (Vector3){ playerPosition.x + playerSize.x/2, playerPosition.y + playerSize.y/2, playerPosition.z + playerSize.z/2 }}, enemySpherePos, enemySphereSize)) collision = true; if (collision) playerColor = RED; else playerColor = GREEN; //---------------------------------------------------------------------------------- // Draw //---------------------------------------------------------------------------------- BeginDrawing(); ClearBackground(RAYWHITE); BeginMode3D(camera); // Draw enemy-box DrawCube(enemyBoxPos, enemyBoxSize.x, enemyBoxSize.y, enemyBoxSize.z, GRAY); DrawCubeWires(enemyBoxPos, enemyBoxSize.x, enemyBoxSize.y, enemyBoxSize.z, DARKGRAY); // Draw enemy-sphere DrawSphere(enemySpherePos, enemySphereSize, GRAY); DrawSphereWires(enemySpherePos, enemySphereSize, 16, 16, DARKGRAY); // Draw player DrawCubeV(playerPosition, playerSize, playerColor); DrawGrid(10, 1.0f); // Draw a grid EndMode3D(); DrawText("Move player with cursors to collide", 220, 40, 20, GRAY); DrawFPS(10, 10); EndDrawing(); //---------------------------------------------------------------------------------- } // De-Initialization //-------------------------------------------------------------------------------------- CloseWindow(); // Close window and OpenGL context //-------------------------------------------------------------------------------------- return 0; }
int main(void) { // Initialization //-------------------------------------------------------------------------------------- const int screenWidth = 800; const int screenHeight = 450; 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 model = LoadModel("resources/models/turret.obj"); // Load default model obj Texture2D texture = LoadTexture("resources/models/turret_diffuse.png"); // Load default model texture model.materials[0].maps[MAP_DIFFUSE].texture = texture; // Bind texture to model Vector3 position = { 0.0, 0.0, 0.0 }; // Set model position BoundingBox bounds = MeshBoundingBox(model.meshes[0]); // Set model bounds bool selected = false; // Selected object flag SetCameraMode(camera, CAMERA_FREE); // Set a free camera mode char objFilename[64] = "turret.obj"; 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 //---------------------------------------------------------------------------------- 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(); //---------------------------------------------------------------------------------- } // De-Initialization //-------------------------------------------------------------------------------------- UnloadModel(model); // Unload model ClearDroppedFiles(); // Clear internal buffers CloseWindow(); // Close window and OpenGL context //-------------------------------------------------------------------------------------- return 0; }
int main(void) { // Initialization //-------------------------------------------------------------------------------------- const int screenWidth = 800; const int screenHeight = 450; InitWindow(screenWidth, screenHeight, "raylib [models] example - first person maze"); // Define the camera to look into our 3d world Camera camera = { { 0.2f, 0.4f, 0.2f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 }; Image imMap = LoadImage("resources/cubicmap.png"); // Load cubicmap image (RAM) Texture2D cubicmap = LoadTextureFromImage(imMap); // Convert image to texture to display (VRAM) Mesh mesh = GenMeshCubicmap(imMap, (Vector3){ 1.0f, 1.0f, 1.0f }); Model model = LoadModelFromMesh(mesh); // NOTE: By default each cube is mapped to one part of texture atlas Texture2D texture = LoadTexture("resources/cubicmap_atlas.png"); // Load map texture model.materials[0].maps[MAP_DIFFUSE].texture = texture; // Set map diffuse texture // Get map image data to be used for collision detection Color *mapPixels = GetImageData(imMap); UnloadImage(imMap); // Unload image from RAM Vector3 mapPosition = { -16.0f, 0.0f, -8.0f }; // Set model position Vector3 playerPosition = camera.position; // Set player position SetCameraMode(camera, CAMERA_FIRST_PERSON); // Set camera mode 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 //---------------------------------------------------------------------------------- Vector3 oldCamPos = camera.position; // Store old camera position UpdateCamera(&camera); // Update camera // Check player collision (we simplify to 2D collision detection) Vector2 playerPos = { camera.position.x, camera.position.z }; float playerRadius = 0.1f; // Collision radius (player is modelled as a cilinder for collision) int playerCellX = (int)(playerPos.x - mapPosition.x + 0.5f); int playerCellY = (int)(playerPos.y - mapPosition.z + 0.5f); // Out-of-limits security check if (playerCellX < 0) playerCellX = 0; else if (playerCellX >= cubicmap.width) playerCellX = cubicmap.width - 1; if (playerCellY < 0) playerCellY = 0; else if (playerCellY >= cubicmap.height) playerCellY = cubicmap.height - 1; // Check map collisions using image data and player position // TODO: Improvement: Just check player surrounding cells for collision for (int y = 0; y < cubicmap.height; y++) { for (int x = 0; x < cubicmap.width; x++) { if ((mapPixels[y*cubicmap.width + x].r == 255) && // Collision: white pixel, only check R channel (CheckCollisionCircleRec(playerPos, playerRadius, (Rectangle){ mapPosition.x - 0.5f + x*1.0f, mapPosition.z - 0.5f + y*1.0f, 1.0f, 1.0f }))) { // Collision detected, reset camera position camera.position = oldCamPos; } } } //---------------------------------------------------------------------------------- // Draw //---------------------------------------------------------------------------------- BeginDrawing(); ClearBackground(RAYWHITE); BeginMode3D(camera); DrawModel(model, mapPosition, 1.0f, WHITE); // Draw maze map //DrawCubeV(playerPosition, (Vector3){ 0.2f, 0.4f, 0.2f }, RED); // Draw player EndMode3D(); DrawTextureEx(cubicmap, (Vector2){ GetScreenWidth() - cubicmap.width*4 - 20, 20 }, 0.0f, 4.0f, WHITE); DrawRectangleLines(GetScreenWidth() - cubicmap.width*4 - 20, 20, cubicmap.width*4, cubicmap.height*4, GREEN); // Draw player position radar DrawRectangle(GetScreenWidth() - cubicmap.width*4 - 20 + playerCellX*4, 20 + playerCellY*4, 4, 4, RED); DrawFPS(10, 10); EndDrawing(); //---------------------------------------------------------------------------------- } // De-Initialization //-------------------------------------------------------------------------------------- free(mapPixels); // Unload color array UnloadTexture(cubicmap); // Unload cubicmap texture UnloadTexture(texture); // Unload map texture UnloadModel(model); // Unload map model CloseWindow(); // Close window and OpenGL context //-------------------------------------------------------------------------------------- return 0; }