1 // multiply.h 2 // 3 // Copyright (C) 2003, 2004 Jason Bevins 4 // 5 // This library is free software; you can redistribute it and/or modify it 6 // under the terms of the GNU Lesser General Public License as published by 7 // the Free Software Foundation; either version 2.1 of the License, or (at 8 // your option) any later version. 9 // 10 // This library is distributed in the hope that it will be useful, but WITHOUT 11 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 13 // License (COPYING.txt) for more details. 14 // 15 // You should have received a copy of the GNU Lesser General Public License 16 // along with this library; if not, write to the Free Software Foundation, 17 // Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 18 // 19 // The developer's email is jlbezigvins@gmzigail.com (for great email, take 20 // off every 'zig'.) 21 // 22 module noise.mod.multiply; 23 24 private { 25 import noise.mod.modulebase; 26 } 27 28 /// @addtogroup libnoise 29 /// @{ 30 31 /// @addtogroup modules 32 /// @{ 33 34 /// @addtogroup combinermodules 35 /// @{ 36 37 /// Noise module that outputs the product of the two output values from 38 /// two source modules. 39 /// 40 /// @image html modulemultiply.png 41 /// 42 /// This noise module requires two source modules. 43 class Multiply : Mod 44 { 45 46 public: 47 48 /// Constructor. 49 this() 50 { 51 super(this.GetSourceModCount()); 52 } 53 54 override int GetSourceModCount () const 55 { 56 return 2; 57 } 58 59 override double GetValue (double x, double y, double z) const 60 { 61 assert (m_pSourceMod[0] !is null); 62 assert (m_pSourceMod[1] !is null); 63 64 return m_pSourceMod[0].GetValue (x, y, z) 65 * m_pSourceMod[1].GetValue (x, y, z); 66 } 67 68 }; 69 70 /// @} 71 72 /// @} 73 74 /// @}