73 lines
2.2 KiB
C++
73 lines
2.2 KiB
C++
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#pragma once
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/*
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-----------------------------------------------------------------------------
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Class: InputQueue
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Desc: Stores a list of the most recently pressed MenuInputs for each player.
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Copyright (c) 2001-2002 by the person(s) listed below. All rights reserved.
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Chris Danford
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-----------------------------------------------------------------------------
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*/
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#include "MenuInput.h"
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#include "GameConstantsAndTypes.h"
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const int MAX_INPUT_QUEUE_LENGTH = 8;
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class InputQueue
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{
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public:
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InputQueue()
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{
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for( int p=0; p<NUM_PLAYERS; p++ )
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m_aMenuButtonQueue[p].SetSize( MAX_INPUT_QUEUE_LENGTH );
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}
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void HandleInput( const PlayerNumber p, const MenuButton b )
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{
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if( m_aMenuButtonQueue[p].GetSize() >= MAX_INPUT_QUEUE_LENGTH ) // full
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m_aMenuButtonQueue[p].RemoveAt( 0, m_aMenuButtonQueue[p].GetSize()-MAX_INPUT_QUEUE_LENGTH+1 );
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m_aMenuButtonQueue[p].Add( MenuButtonAndTickCount(b,GetTickCount()) );
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};
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bool MatchesPattern( const PlayerNumber p, const MenuButton* button_sequence, const int iNumButtons, float fMaxSecondsBack = -1 )
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{
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if( fMaxSecondsBack == -1 )
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fMaxSecondsBack = 0.4f + iNumButtons*0.15f;
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DWORD dwMaxTicksBack = roundf(fMaxSecondsBack*1000);
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DWORD dwOldestTickAllowed = GetTickCount() - dwMaxTicksBack;
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int sequence_index = iNumButtons-1; // count down
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for( int queue_index=m_aMenuButtonQueue[p].GetSize()-1; queue_index>=0; queue_index-- ) // iterate newest to oldest
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{
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MenuButtonAndTickCount BandT = m_aMenuButtonQueue[p][queue_index];
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if( BandT.button != button_sequence[sequence_index] ||
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BandT.dwTickCount < dwOldestTickAllowed )
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{
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return false;
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}
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if( sequence_index == 0 ) // we matched the whole pattern
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{
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m_aMenuButtonQueue[p].RemoveAll(); // empty the queue so we don't match on it again
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return true;
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}
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sequence_index--;
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}
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return false;
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}
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protected:
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struct MenuButtonAndTickCount
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{
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MenuButtonAndTickCount() {}
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MenuButtonAndTickCount( MenuButton b, DWORD t ) { button = b; dwTickCount = t; };
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MenuButton button;
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DWORD dwTickCount;
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};
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CArray<MenuButtonAndTickCount,MenuButtonAndTickCount> m_aMenuButtonQueue[NUM_PLAYERS];
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};
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extern InputQueue* INPUTQUEUE; // global and accessable from anywhere in our program
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