statemenu.cpp

#include "statemenu.h"
#include "statemachine.h"
#include "debug.h"

using namespace irr;
using namespace core;
using namespace video;
using namespace gui;

extern StateMachine* sm;
extern Debug* dbg;

StateMenu::StateMenu(c8* n, IrrlichtDevice* d) : State(n, d)
{
    //ctor
}

StateMenu::~StateMenu()
{
    //dtor
}

bool StateMenu::OnEvent(SEvent event)
{
    if (event.EventType == EET_KEY_INPUT_EVENT)
    {
        if (event.KeyInput.PressedDown)
        {
            switch(event.KeyInput.Key)
            {
                case KEY_ESCAPE:
                {
                    if (gui->isVisible())
                    {
                        gui->setVisible(false);
                    }
                    else
                    {
                        gui->setVisible(true);
                    }
                    return true;
                }
            }
        }
    }

    if (event.EventType == EET_GUI_EVENT)
    {
        switch(event.GUIEvent.EventType)
        {
            case EGET_BUTTON_CLICKED:
            {
                s32 id = event.GUIEvent.Caller->getID();
                switch (id)
                {
                    case 100:
                    {
                        sm->pushEvent("STATE_FLOCKSIMULATION");
                        return true;
                    }
                    case 101:
                    {
                        sm->pushEvent("STATE_TERRAIN");
                        return true;
                    }
                    case 199:
                    {
                        sm->pushEvent("STATE_CLOSE");
                        return true;
                    }
                }
            }
        }
    }
    return false;
}

void StateMenu::render(u32 deltaTime)
{
      device->getVideoDriver()->beginScene(true, true, SColor(0, 255, 255, 0));
      dbg->show("this is MenuState");
      device->getGUIEnvironment()->drawAll();
      device->getVideoDriver()->endScene();
}

void StateMenu::entry()
{
    dbg->log("State", name, "entry");

    // init members

    // init working directory only once
    if (workingDirectory == "")
    {
        stringc tmp(device->getFileSystem()->getWorkingDirectory());
        workingDirectory = tmp;
    }
    else
    {
        device->getFileSystem()->changeWorkingDirectoryTo(workingDirectory.c_str());
    }

    // enable mouse
    device->getCursorControl()->setVisible(true);

    // create GUI
    gui = new Gui(device, stringc("Menu"), rect<s32>(300, 200, 500, 280));
    gui->addButton(100, "start flock simulation");
    gui->addButton(101, "start terrain test");
    gui->addButton(199, "exit");

    // load background picture
    ITexture* texture = device->getVideoDriver()->getTexture("media/menu.png");
    if (! texture)
    {
        dbg->log("StateMenu: cannot get texture");
        imgMenu = NULL;
        return;
    }

    imgMenu = device->getGUIEnvironment()->addImage(texture, position2d<s32>(100, 100));
    gui->bringToFront();
}

void StateMenu::exit()
{
    dbg->log("State", name, "exit");

    // deinit members
    if (imgMenu)
    {
        imgMenu->remove();
    }
    imgMenu = NULL;

    delete gui;
}

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