mopoidpanel.cpp

一款大砖块的游戏

/*
* ============================================================================
*  Name     : TPanel from MopoidPanel.cpp
*  Part of  : Mopoid
*  Created  : 16.01.2004 by Andreas Jakl / Mopius - http://www.mopius.com/
*  Description:
*     Handles the panel.
*  Version  : 1.02
*  Copyright: 
*     'Mopoid' is free software; you can redistribute
*     it and/or modify it under the terms of the GNU General Public License
*     as published by the Free Software Foundation; either version 2 of
*     the License, or (at your option) any later version.
* 
*     'Mopoid' is distributed in the hope that it
*     will be useful, but WITHOUT ANY WARRANTY; without even the implied
*     warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*     See the GNU General Public License for more details.
* 
*     You should have received a copy of the GNU General Public License
*     along with 'Mopoid'; if not, write to the Free Software
*     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
* ============================================================================
*/

#include "MopoidPanel.h"

// --- TPanel
TPanel::TPanel(void)
:
    iPos(0,0),
    iSize(0,0),
    iSizeHalf(0,0),
    iX(0),
    iVx(0)
{}

// -----------------------------------------------------------------------
void TPanel::KeyboardMove(MopoidShared::TDirection aDirection)
{
    TInt aLeftRight = 0;
    if (aDirection == MopoidShared::ELeft)
        aLeftRight = -1;
    else if (aDirection == MopoidShared::ERight)
        aLeftRight = 1;

    iVx = PANEL_SPEED * aLeftRight;
}

// -----------------------------------------------------------------------
void TPanel::SetSpeed(TReal aSpeed)
{
    iVx = aSpeed;
}

// -----------------------------------------------------------------------
void TPanel::ConvertToPos(TReal aStep)
{
    iX += iVx * aStep;

    // Make sure that the panel doesn't go outside of the screen.
    if (iX < BORDER_LEFT)
        iX = BORDER_LEFT;
    else if (iX + iSize.iWidth > BORDER_RIGHT)
        iX = BORDER_RIGHT - iSize.iWidth;

    // Convert new exact position to the screen position for faster calculations
    iPos.iX = (TInt)iX;

    // Don't move again unless we're told to.
    iVx = 0.0;
}