Initial commit

engines/hpl1/penumbra-overture/FadeHandler.cpp

@@ -0,0 +1,161 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/*
+ * Copyright (C) 2006-2010 - Frictional Games
+ *
+ * This file is part of Penumbra Overture.
+ */
+
+#include "hpl1/penumbra-overture/FadeHandler.h"
+
+#include "hpl1/penumbra-overture/GameEntity.h"
+#include "hpl1/penumbra-overture/Init.h"
+#include "hpl1/penumbra-overture/Inventory.h"
+#include "hpl1/penumbra-overture/Player.h"
+
+//////////////////////////////////////////////////////////////////////////
+// CONSTRUCTORS
+//////////////////////////////////////////////////////////////////////////
+
+//-----------------------------------------------------------------------
+
+cFadeHandler::cFadeHandler(cInit *apInit) : iUpdateable("FadeHandler") {
+	mpInit = apInit;
+
+	mpDrawer = mpInit->mpGame->GetGraphics()->GetDrawer();
+
+	mpBlackGfx = mpDrawer->CreateGfxObject("effect_black.bmp", "diffalpha2d");
+
+	Reset();
+}
+
+//-----------------------------------------------------------------------
+
+cFadeHandler::~cFadeHandler(void) {
+	mpDrawer->DestroyGfxObject(mpBlackGfx);
+}
+
+//-----------------------------------------------------------------------
+
+//////////////////////////////////////////////////////////////////////////
+// PUBLIC METHODS
+//////////////////////////////////////////////////////////////////////////
+
+//-----------------------------------------------------------------------
+
+void cFadeHandler::FadeOut(float afTime) {
+	if (afTime <= 0)
+		mfAlphaAdd = 1000000.0f;
+	else
+		mfAlphaAdd = (1.0f / afTime);
+
+	mbActive = true;
+
+	Update(1.0f / 60.0f);
+}
+
+//-----------------------------------------------------------------------
+
+void cFadeHandler::FadeIn(float afTime) {
+	if (afTime <= 0)
+		mfAlphaAdd = -100000.0f;
+	else
+		mfAlphaAdd = -(1.0f / afTime);
+
+	mbActive = true;
+
+	Update(1.0f / 60.0f);
+}
+
+//-----------------------------------------------------------------------
+
+bool cFadeHandler::IsActive() {
+	return mbActive;
+}
+
+//-----------------------------------------------------------------------
+
+void cFadeHandler::OnStart() {
+}
+
+//-----------------------------------------------------------------------
+
+void cFadeHandler::SetWideScreenActive(bool abX) {
+	mbWideScreenActive = abX;
+}
+
+//-----------------------------------------------------------------------
+
+void cFadeHandler::Update(float afTimeStep) {
+	if (mbActive) {
+		mfAlpha += mfAlphaAdd * afTimeStep;
+
+		if (mfAlphaAdd < 0) {
+			if (mfAlpha < 0) {
+				mbActive = false;
+				mfAlpha = 0;
+			}
+		} else {
+			if (mfAlpha > 1) {
+				mbActive = false;
+				mfAlpha = 1;
+			}
+		}
+	}
+
+	//////////////////////////////////
+	// Wide Screen
+	if (mbWideScreenActive) {
+		mfWideScreenAlpha += 0.8f * afTimeStep;
+		if (mfWideScreenAlpha > 1)
+			mfWideScreenAlpha = 1;
+	} else {
+		mfWideScreenAlpha -= 0.7f * afTimeStep;
+		if (mfWideScreenAlpha < 0)
+			mfWideScreenAlpha = 0;
+	}
+}
+
+//-----------------------------------------------------------------------
+
+void cFadeHandler::Reset() {
+	mfWideScreenAlpha = 0;
+	mbWideScreenActive = false;
+
+	mfAlpha = 0;
+	mfAlphaAdd = 0;
+	mbActive = false;
+}
+
+//-----------------------------------------------------------------------
+
+void cFadeHandler::OnDraw() {
+	if (mfAlpha != 0)
+		mpDrawer->DrawGfxObject(mpBlackGfx, cVector3f(0, 0, 150), cVector2f(800, 600), cColor(1, mfAlpha));
+
+	if (mfWideScreenAlpha != 0) {
+		mpDrawer->DrawGfxObject(mpBlackGfx, cVector3f(0, 0, 40), cVector2f(800, 75), cColor(1, mfWideScreenAlpha));
+		mpDrawer->DrawGfxObject(mpBlackGfx, cVector3f(0, 525, 40), cVector2f(800, 75), cColor(1, mfWideScreenAlpha));
+	}
+}
+
+//-----------------------------------------------------------------------