Camera Controls

Camera Control System

Location: GraphInput.cpp/h

Input Manager Methods:

// Returns TRUE while key is held down (continuous)
_app->_inputManager.isKeyDown(SDLK_W)  // "W key is currently pressed"
 
// Returns TRUE only on first frame key is pressed (one-time)
_app->_inputManager.isKeyPressed(SDL_SPACE)  // "Space was just pressed this frame"

Camera Movement Logic:

WASD Movement (Perspective Camera):

// In checkInput() function:
    if (_app->_inputManager.isKeyDown(SDLK_w) ||
        _app->_inputManager.isKeyDown(SDLK_UP)) {
        accelerationY += cameraAcceleration;
    }
    else if (_app->_inputManager.isKeyDown(SDLK_s) ||
        _app->_inputManager.isKeyDown(SDLK_DOWN)) {
        accelerationY -= cameraAcceleration;
    }
// Similar for A (left), D (right), Q (down), E (up)

Middle Mouse Rotation:

if (_app->_inputManager.isKeyPressed(SDL_BUTTON_MIDDLE)) {
                _app->_inputManager.setPanningPoint(_viewportMousePosition);
                main_camera2D->setPanningAimPos(main_camera2D->getAimPos() - main_camera2D->getPosition());
            } // this sets the reference point for rotation
 
......      
 
else if (_app->_inputManager.isKeyDown(SDL_BUTTON_MIDDLE)) {
    // Calculate new camera position based on the mouse movement
    glm::vec3 delta = glm::vec3(_app->_inputManager.calculatePanningDelta(_viewportMousePosition), 0.0f);
    main_camera2D->moveAimPos(main_camera2D->getPanningAimPos(), delta);
} // this rotates camera to reference the panning position