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https://github.com/scummvm/scummvm.git
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161 lines
4.3 KiB
C++
161 lines
4.3 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 Penumbra Overture.
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*/
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#include "hpl1/penumbra-overture/FadeHandler.h"
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#include "hpl1/penumbra-overture/GameEntity.h"
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#include "hpl1/penumbra-overture/Init.h"
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#include "hpl1/penumbra-overture/Inventory.h"
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#include "hpl1/penumbra-overture/Player.h"
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//////////////////////////////////////////////////////////////////////////
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// CONSTRUCTORS
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//////////////////////////////////////////////////////////////////////////
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//-----------------------------------------------------------------------
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cFadeHandler::cFadeHandler(cInit *apInit) : iUpdateable("FadeHandler") {
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mpInit = apInit;
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mpDrawer = mpInit->mpGame->GetGraphics()->GetDrawer();
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mpBlackGfx = mpDrawer->CreateGfxObject("effect_black.bmp", "diffalpha2d");
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Reset();
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}
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//-----------------------------------------------------------------------
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cFadeHandler::~cFadeHandler(void) {
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mpDrawer->DestroyGfxObject(mpBlackGfx);
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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 cFadeHandler::FadeOut(float afTime) {
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if (afTime <= 0)
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mfAlphaAdd = 1000000.0f;
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else
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mfAlphaAdd = (1.0f / afTime);
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mbActive = true;
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Update(1.0f / 60.0f);
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}
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//-----------------------------------------------------------------------
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void cFadeHandler::FadeIn(float afTime) {
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if (afTime <= 0)
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mfAlphaAdd = -100000.0f;
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else
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mfAlphaAdd = -(1.0f / afTime);
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mbActive = true;
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Update(1.0f / 60.0f);
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}
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//-----------------------------------------------------------------------
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bool cFadeHandler::IsActive() {
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return mbActive;
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}
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//-----------------------------------------------------------------------
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void cFadeHandler::OnStart() {
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}
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//-----------------------------------------------------------------------
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void cFadeHandler::SetWideScreenActive(bool abX) {
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mbWideScreenActive = abX;
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}
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//-----------------------------------------------------------------------
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void cFadeHandler::Update(float afTimeStep) {
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if (mbActive) {
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mfAlpha += mfAlphaAdd * afTimeStep;
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if (mfAlphaAdd < 0) {
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if (mfAlpha < 0) {
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mbActive = false;
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mfAlpha = 0;
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}
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} else {
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if (mfAlpha > 1) {
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mbActive = false;
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mfAlpha = 1;
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}
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}
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}
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//////////////////////////////////
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// Wide Screen
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if (mbWideScreenActive) {
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mfWideScreenAlpha += 0.8f * afTimeStep;
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if (mfWideScreenAlpha > 1)
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mfWideScreenAlpha = 1;
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} else {
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mfWideScreenAlpha -= 0.7f * afTimeStep;
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if (mfWideScreenAlpha < 0)
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mfWideScreenAlpha = 0;
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}
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}
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//-----------------------------------------------------------------------
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void cFadeHandler::Reset() {
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mfWideScreenAlpha = 0;
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mbWideScreenActive = false;
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mfAlpha = 0;
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mfAlphaAdd = 0;
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mbActive = false;
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}
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//-----------------------------------------------------------------------
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void cFadeHandler::OnDraw() {
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if (mfAlpha != 0)
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mpDrawer->DrawGfxObject(mpBlackGfx, cVector3f(0, 0, 150), cVector2f(800, 600), cColor(1, mfAlpha));
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if (mfWideScreenAlpha != 0) {
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mpDrawer->DrawGfxObject(mpBlackGfx, cVector3f(0, 0, 40), cVector2f(800, 75), cColor(1, mfWideScreenAlpha));
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mpDrawer->DrawGfxObject(mpBlackGfx, cVector3f(0, 525, 40), cVector2f(800, 75), cColor(1, mfWideScreenAlpha));
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}
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}
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//-----------------------------------------------------------------------
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