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- /*
- * Copyright (c) Contributors, http://opensimulator.org/
- * See CONTRIBUTORS.TXT for a full list of copyright holders.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of the OpenSimulator Project nor the
- * names of its contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- using System;
- using OpenSim.Region.CoreModules.World.Terrain;
- using OpenSim.Region.Framework.Interfaces;
- namespace OpenSim.Region.CoreModules.World.Terrain.Modifiers
- {
- public class LowerModifier : TerrainModifier
- {
- public LowerModifier(ITerrainModule module) : base(module)
- {
- }
- public override string ModifyTerrain(ITerrainChannel map, string[] args)
- {
- string result;
- if (args.Length < 3)
- {
- result = "Usage: " + GetUsage();
- }
- else
- {
- TerrainModifierData data;
- result = this.parseParameters(args, out data);
- // Context-specific validation
- if (result == String.Empty)
- {
- if (data.shape == String.Empty)
- {
- data.shape = "rectangle";
- data.x0 = 0;
- data.y0 = 0;
- data.dx = map.Width;
- data.dy = map.Height;
- }
- }
- // if it's all good, then do the work
- if (result == String.Empty)
- {
- this.applyModification(map, data);
- }
- }
- return result;
- }
- public override string GetUsage()
- {
- string val = "lower <delta> [ -rec=x1,y1,dx[,dy] | -ell=x0,y0,rx[,ry] ] [-taper=<delta2>]"
- + "\nLowers all points within the specified range by the specified amount.";
- return val;
- }
- public override double operate(double[,] map, TerrainModifierData data, int x, int y)
- {
- double factor = this.computeBevel(data, x, y);
- double result = map[x, y] - (data.elevation - (data.elevation - data.bevelevation) * factor);
- return result;
- }
- }
- }
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