48 lines
1.3 KiB
C++
Executable File
48 lines
1.3 KiB
C++
Executable File
///////////////////////////////////////////////////////////////////////////////
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//
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// Name: LightEnv.h
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// Author: Rich Cross
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// Contact: rich@wildfiregames.com
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//
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// Description: class describing current lighting environment -
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// at the minute, this is only sunlight and ambient light
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// parameters; will be extended to handle dynamic lights at some
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// later date
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//
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///////////////////////////////////////////////////////////////////////////////
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#ifndef __LIGHTENV_H
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#define __LIGHTENV_H
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#include "Color.h"
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#include "Vector3D.h"
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///////////////////////////////////////////////////////////////////////////////
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// CLightEnv: description of a lighting environment - contains all the
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// necessary parameters for representation of the lighting within a scenario
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class CLightEnv
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{
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public:
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RGBColor m_SunColor;
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float m_Elevation;
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float m_Rotation;
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RGBColor m_TerrainAmbientColor;
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RGBColor m_UnitsAmbientColor;
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// get sun direction from a rotation and elevation; defined such that:
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// 0 rotation = (0,0,1)
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// PI/2 rotation = (-1,0,0)
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// 0 elevation = (0,0,0)
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// PI/2 elevation = (0,-1,0)
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void GetSunDirection(CVector3D& lightdir) const {
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lightdir.Y=-float(sin(m_Elevation));
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float scale=1+lightdir.Y;
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lightdir.X=scale*float(sin(m_Rotation));
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lightdir.Z=scale*float(cos(m_Rotation));
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lightdir.Normalize();
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}
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};
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#endif
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