LowerSphere.cs 3.2 KB

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  1. /*
  2. * Copyright (c) Contributors, http://opensimulator.org/
  3. * See CONTRIBUTORS.TXT for a full list of copyright holders.
  4. *
  5. * Redistribution and use in source and binary forms, with or without
  6. * modification, are permitted provided that the following conditions are met:
  7. * * Redistributions of source code must retain the above copyright
  8. * notice, this list of conditions and the following disclaimer.
  9. * * Redistributions in binary form must reproduce the above copyright
  10. * notice, this list of conditions and the following disclaimer in the
  11. * documentation and/or other materials provided with the distribution.
  12. * * Neither the name of the OpenSim Project nor the
  13. * names of its contributors may be used to endorse or promote products
  14. * derived from this software without specific prior written permission.
  15. *
  16. * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
  17. * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  18. * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  19. * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
  20. * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  21. * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  22. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  23. * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  25. * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26. */
  27. using System;
  28. using OpenSim.Region.Environment.Interfaces;
  29. namespace OpenSim.Region.Environment.Modules.World.Terrain.PaintBrushes
  30. {
  31. public class LowerSphere : ITerrainPaintableEffect
  32. {
  33. #region ITerrainPaintableEffect Members
  34. public void PaintEffect(ITerrainChannel map, bool[,] mask, double rx, double ry, double rz, double strength, double duration)
  35. {
  36. int s = (int) (Math.Pow(2, strength) + 0.5);
  37. int x;
  38. int xFrom = (int)(rx-s+0.5);
  39. int xTo = (int)(rx+s+0.5) + 1;
  40. int yFrom = (int)(ry-s+0.5);
  41. int yTo = (int)(ry+s+0.5) + 1;
  42. if (xFrom < 0)
  43. xFrom = 0;
  44. if (yFrom < 0)
  45. yFrom = 0;
  46. if (xTo > map.Width)
  47. xTo = map.Width;
  48. if (yTo > map.Width)
  49. yTo = map.Width;
  50. for (x = xFrom; x < xTo; x++)
  51. {
  52. int y;
  53. for (y = yFrom; y < yTo; y++)
  54. {
  55. if (!mask[x,y])
  56. continue;
  57. // Calculate a cos-sphere and add it to the heighmap
  58. double r = Math.Sqrt((x-rx) * (x-rx) + ((y-ry) * (y-ry)));
  59. double z = Math.Cos(r * Math.PI / (s * 2));
  60. if (z > 0.0)
  61. {
  62. double newz = map[x, y] - z * duration;
  63. if (newz < 0.0)
  64. map[x, y] = 0.0;
  65. else
  66. map[x, y] = newz;
  67. }
  68. }
  69. }
  70. }
  71. #endregion
  72. }
  73. }