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engines/wintermute/base/gfx/3dlight.cpp

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+/* 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/>.
+ *
+ */
+
+/*
+ * This file is based on WME.
+ * http://dead-code.org/redir.php?target=wme
+ * Copyright (c) 2003-2013 Jan Nedoma and contributors
+ */
+
+#include "engines/wintermute/base/base_game.h"
+#include "engines/wintermute/base/gfx/opengl/base_render_opengl3d.h"
+#include "engines/wintermute/base/gfx/3dlight.h"
+#include "engines/wintermute/base/gfx/3dloader_3ds.h"
+#include "engines/wintermute/math/math_util.h"
+#include "engines/wintermute/wintypes.h"
+
+#include "graphics/opengl/system_headers.h"
+
+namespace Wintermute {
+
+//////////////////////////////////////////////////////////////////////////
+Light3D::Light3D(BaseGame *inGame) : BaseScriptable(inGame, false, false) {
+	_diffuseColor = BYTETORGBA(255, 255, 255, 255);
+	_pos = DXVector3(0, 0, 0);
+	_target = DXVector3(0, 0, 0);
+	_isSpotlight = false;
+	_falloff = 0;
+	_active = true;
+
+	_distance = 0.0f;
+	_isAvailable = false;
+}
+
+//////////////////////////////////////////////////////////////////////////
+Light3D::~Light3D() {
+}
+
+//////////////////////////////////////////////////////////////////////////
+bool Light3D::setLight(int index) {
+	DXVector4 diffuse;
+	diffuse._x = RGBCOLGetR(_diffuseColor) / 256.0f;
+	diffuse._y = RGBCOLGetG(_diffuseColor) / 256.0f;
+	diffuse._z = RGBCOLGetB(_diffuseColor) / 256.0f;
+	diffuse._w = 1.0f;
+
+	DXVector3 dir = _target - _pos;
+	DXVec3Normalize(&dir, &dir);
+	_game->_renderer3D->setLightParameters(index, _pos, dir, diffuse, _isSpotlight);
+
+	if (_active) {
+		_game->_renderer3D->lightEnable(index, true);
+	}
+
+	return true;
+}
+
+//////////////////////////////////////////////////////////////////////////
+bool Light3D::getViewMatrix(DXMatrix *viewMatrix) {
+	DXVector3 up = DXVector3(0.0f, 1.0f, 0.0f);
+	DXMatrixLookAtLH(viewMatrix, &_pos, &_target, &up);
+	return true;
+}
+
+//////////////////////////////////////////////////////////////////////////
+bool Light3D::persist(BasePersistenceManager *persistMgr) {
+	persistMgr->transferBool(TMEMBER(_active));
+	persistMgr->transferUint32(TMEMBER(_diffuseColor));
+	return true;
+}
+
+} // namespace Wintermute