SDL Game Development by Sdl Game Development 2013

Author:Sdl Game Development 2013
Language: eng
Format: epub
Publisher: Packt Publishing

In our MenuButton.cpp file, we can now alter the constructor and initialize our pointer with the initialization list:

MenuButton::MenuButton(const LoaderParams* pParams, void (*callback)() ) : SDLGameObject(pParams), m_callback(callback)

The update function can now call this function:

void MenuButton::update() { Vector2D* pMousePos = TheInputHandler::Instance() ->getMousePosition(); if(pMousePos->getX() < (m_position.getX() + m_width) && pMousePos->getX() > m_position.getX() && pMousePos->getY() < (m_position.getY() + m_height) && pMousePos->getY() > m_position.getY()) { if(TheInputHandler::Instance()->getMouseButtonState(LEFT) && m_bReleased) { m_currentFrame = CLICKED; m_callback(); // call our callback function m_bReleased = false; } else if(!TheInputHandler::Instance() ->getMouseButtonState(LEFT)) { m_bReleased = true; m_currentFrame = MOUSE_OVER; } } else { m_currentFrame = MOUSE_OUT; } }

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