128 lines
3.6 KiB
C++
128 lines
3.6 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/*
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* Copyright (C) 2006-2010 - Frictional Games
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*
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* This file is part of HPL1 Engine.
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*/
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#include "hpl1/engine/system/LogicTimer.h"
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#include "hpl1/engine/system/low_level_system.h"
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namespace hpl {
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//////////////////////////////////////////////////////////////////////////
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// CONSTRUCTORS
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//////////////////////////////////////////////////////////////////////////
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//-----------------------------------------------------------------------
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cLogicTimer::cLogicTimer(int alUpdatesPerSec, LowLevelSystem *apLowLevelSystem) {
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mlMaxUpdates = alUpdatesPerSec;
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mlUpdateCount = 0;
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mpLowLevelSystem = apLowLevelSystem;
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SetUpdatesPerSec(alUpdatesPerSec);
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}
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//-----------------------------------------------------------------------
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cLogicTimer::~cLogicTimer() {
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}
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//-----------------------------------------------------------------------
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//////////////////////////////////////////////////////////////////////////
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// PUBLIC METHODS
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//////////////////////////////////////////////////////////////////////////
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//-----------------------------------------------------------------------
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void cLogicTimer::Reset() {
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mlLocalTime = (double)GetApplicationTime();
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}
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//-----------------------------------------------------------------------
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bool cLogicTimer::WantUpdate() {
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++mlUpdateCount;
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if (mlUpdateCount > mlMaxUpdates)
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return false;
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if (mlLocalTime < (double)GetApplicationTime()) {
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Update();
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return true;
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}
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return false;
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}
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//-----------------------------------------------------------------------
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void cLogicTimer::EndUpdateLoop() {
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if (mlUpdateCount > mlMaxUpdates) {
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Reset();
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}
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mlUpdateCount = 0;
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}
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//-----------------------------------------------------------------------
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void cLogicTimer::SetUpdatesPerSec(int alUpdatesPerSec) {
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mlLocalTimeAdd = 1000.0 / ((double)alUpdatesPerSec);
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Reset();
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}
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//-----------------------------------------------------------------------
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void cLogicTimer::SetMaxUpdates(int alMax) {
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mlMaxUpdates = alMax;
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}
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//-----------------------------------------------------------------------
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int cLogicTimer::GetUpdatesPerSec() {
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return (int)(1000.0 / ((double)mlLocalTimeAdd));
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}
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//-----------------------------------------------------------------------
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float cLogicTimer::GetStepSize() {
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return ((float)mlLocalTimeAdd) / 1000.0f;
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}
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//-----------------------------------------------------------------------
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//////////////////////////////////////////////////////////////////////////
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// PRIVATE METHODS
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//////////////////////////////////////////////////////////////////////////
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//-----------------------------------------------------------------------
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void cLogicTimer::Update() {
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mlLocalTime += mlLocalTimeAdd;
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}
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//-----------------------------------------------------------------------
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} // namespace hpl
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