aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/OpenSim.Terrain.BasicTerrain/RaiseLower.cs
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--OpenSim.Terrain.BasicTerrain/RaiseLower.cs91
1 files changed, 91 insertions, 0 deletions
diff --git a/OpenSim.Terrain.BasicTerrain/RaiseLower.cs b/OpenSim.Terrain.BasicTerrain/RaiseLower.cs
new file mode 100644
index 0000000..384bcc0
--- /dev/null
+++ b/OpenSim.Terrain.BasicTerrain/RaiseLower.cs
@@ -0,0 +1,91 @@
1using System;
2using System.Collections.Generic;
3using System.Text;
4
5namespace OpenSim.Terrain.BasicTerrain
6{
7 static class RaiseLower
8 {
9 /// <summary>
10 /// Raises land around the selection
11 /// </summary>
12 /// <param name="rx">The center the X coordinate of where you wish to raise the land</param>
13 /// <param name="ry">The center the Y coordinate of where you wish to raise the land</param>
14 /// <param name="size">The radius of the dimple</param>
15 /// <param name="amount">How much impact to add to the terrain (0..2 usually)</param>
16 public static void raise(float[,] map, double rx, double ry, double size, double amount)
17 {
18 raiseSphere(map, rx, ry, size, amount);
19 }
20
21 /// <summary>
22 /// Raises land in a sphere around the selection
23 /// </summary>
24 /// <param name="rx">The center the X coordinate of where you wish to raise the land</param>
25 /// <param name="ry">The center the Y coordinate of where you wish to raise the land</param>
26 /// <param name="size">The radius of the sphere dimple</param>
27 /// <param name="amount">How much impact to add to the terrain (0..2 usually)</param>
28 public static void raiseSphere(float[,] map, double rx, double ry, double size, double amount)
29 {
30 int x, y;
31 int w = map.GetLength(0);
32 int h = map.GetLength(1);
33
34 for (x = 0; x < w; x++)
35 {
36 for (y = 0; y < h; y++)
37 {
38 double z = size;
39 z *= z;
40 z -= ((x - rx) * (x - rx)) + ((y - ry) * (y - ry));
41
42 if (z < 0)
43 z = 0;
44
45 map[x, y] += (float)(z * amount);
46 }
47 }
48 }
49
50 /// <summary>
51 /// Lowers land in a sphere around the selection
52 /// </summary>
53 /// <param name="rx">The center the X coordinate of where you wish to lower the land</param>
54 /// <param name="ry">The center the Y coordinate of where you wish to lower the land</param>
55 /// <param name="size">The radius of the sphere dimple</param>
56 /// <param name="amount">How much impact to remove from the terrain (0..2 usually)</param>
57 public static void lower(float[,] map, double rx, double ry, double size, double amount)
58 {
59 lowerSphere(map, rx, ry, size, amount);
60 }
61
62 /// <summary>
63 /// Lowers land in a sphere around the selection
64 /// </summary>
65 /// <param name="rx">The center the X coordinate of where you wish to lower the land</param>
66 /// <param name="ry">The center the Y coordinate of where you wish to lower the land</param>
67 /// <param name="size">The radius of the sphere dimple</param>
68 /// <param name="amount">How much impact to remove from the terrain (0..2 usually)</param>
69 public static void lowerSphere(float[,] map, double rx, double ry, double size, double amount)
70 {
71 int x, y;
72 int w = map.GetLength(0);
73 int h = map.GetLength(1);
74
75 for (x = 0; x < w; x++)
76 {
77 for (y = 0; y < h; y++)
78 {
79 double z = size;
80 z *= z;
81 z -= ((x - rx) * (x - rx)) + ((y - ry) * (y - ry));
82
83 if (z < 0)
84 z = 0;
85
86 map[x, y] -= (float)(z * amount);
87 }
88 }
89 }
90 }
91}