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engines/tetraedge/te/te_light.h

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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/>.
+ *
+ */
+
+#ifndef TETRAEDGE_TE_TE_LIGHT_H
+#define TETRAEDGE_TE_TE_LIGHT_H
+
+#include "tetraedge/te/te_vector3f32.h"
+#include "tetraedge/te/te_vector2f32.h"
+#include "tetraedge/te/te_color.h"
+
+namespace Tetraedge {
+
+enum TeLightType {
+	LightTypePoint = 0,
+	LightTypeDirectional = 1,
+	LightTypeSpot = 2
+};
+
+class TeCamera;
+
+class TeLight {
+public:
+	TeLight();
+	virtual ~TeLight() {};
+
+	TeVector3f32 directionVector() const;
+	virtual void disable(uint lightno) = 0;
+	virtual void enable(uint lightno) = 0;
+
+	virtual void draw(TeCamera &camera) = 0;
+
+	void transformDirPoint(const TeVector3f32 &pt1, TeVector3f32 &pt2);
+	void transformSpotPoint(TeVector3f32 &pt1);
+
+	virtual void update(uint lightno) = 0;
+	static void setGlobalAmbient(const TeColor &col) { _globalAmbientColor = col.getPacked32(); }
+	static TeColor globalAmbient() { return TeColor(_globalAmbientColor); }
+
+	void setSpecular(const TeColor &col) { _colSpecular = col; }
+	void setDiffuse(const TeColor &col) { _colDiffuse = col; }
+	void setAmbient(const TeColor &col) { _colAmbient = col; }
+
+	void setConstAtten(float val) { _constAtten = val; }
+	void setLinearAtten(float val) { _linearAtten = val; }
+	void setQuadraticAtten(float val) { _quadraticAtten = val; }
+	void setCutoff(float val) { _cutoff = val; }
+	void setExponent(float val) { _exponent = val; }
+	void setDisplaySize(float val) { _displaySize = val; }
+	void setPosition3d(const TeVector3f32 &pos) { _position3d = pos; }
+	void setPositionRadial(const TeVector2f32 &pos) { _positionRadial = pos; }
+	void setType(TeLightType ltype) { _type = ltype; }
+
+	const TeVector2f32 &positionRadial() const { return _positionRadial; }
+	const TeVector3f32 &position3d() const { return _position3d; }
+
+	Common::String dump() const;
+	void correctAttenuation();
+
+	static TeLight *makeInstance();
+
+protected:
+	TeVector3f32 _position3d;
+	TeVector2f32 _positionRadial;
+
+	TeColor _colAmbient;
+	TeColor _colDiffuse;
+	TeColor _colSpecular;
+
+	enum TeLightType _type;
+
+	static uint32 _globalAmbientColor;
+
+	float _constAtten;
+	float _linearAtten;
+	float _quadraticAtten;
+	float _cutoff;
+	float _exponent;
+	float _displaySize;
+};
+
+} // end namespace Tetraedge
+
+#endif // TETRAEDGE_TE_TE_LIGHT_H