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Diffstat (limited to 'OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs')
-rw-r--r-- | OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs | 786 |
1 files changed, 786 insertions, 0 deletions
diff --git a/OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs b/OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs new file mode 100644 index 0000000..c2d7e86 --- /dev/null +++ b/OpenSim/Region/Terrain.BasicTerrain/TerrainEngine.cs | |||
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1 | /* | ||
2 | * Copyright (c) Contributors, http://www.openmetaverse.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 | */ | ||
28 | using System; | ||
29 | using System.Collections.Generic; | ||
30 | using System.Text; | ||
31 | using System.Drawing; | ||
32 | using libTerrain; | ||
33 | using OpenJPEGNet; | ||
34 | |||
35 | namespace OpenSim.Region.Terrain | ||
36 | { | ||
37 | public class TerrainCommand | ||
38 | { | ||
39 | public virtual bool run(string[] cmdargs, ref string output) | ||
40 | { | ||
41 | return false; | ||
42 | } | ||
43 | |||
44 | public string args; | ||
45 | public string help; | ||
46 | } | ||
47 | |||
48 | public class TerrainEngine | ||
49 | { | ||
50 | /// <summary> | ||
51 | /// Plugin library for scripts | ||
52 | /// </summary> | ||
53 | public FilterHost customFilters = new FilterHost(); | ||
54 | |||
55 | /// <summary> | ||
56 | /// A [normally] 256x256 heightmap | ||
57 | /// </summary> | ||
58 | public Channel heightmap; | ||
59 | |||
60 | /// <summary> | ||
61 | /// A copy of heightmap at the last save point (for reverting) | ||
62 | /// </summary> | ||
63 | public Channel revertmap; | ||
64 | |||
65 | /// <summary> | ||
66 | /// Water heightmap (needs clientside mods to work) | ||
67 | /// </summary> | ||
68 | public Channel watermap; | ||
69 | |||
70 | /// <summary> | ||
71 | /// Whether or not the terrain has been modified since it was last saved and sent to the Physics engine. | ||
72 | /// Counts the number of modifications since the last save. (0 = Untainted) | ||
73 | /// </summary> | ||
74 | public int tainted; | ||
75 | |||
76 | int w, h; | ||
77 | |||
78 | /// <summary> | ||
79 | /// Generate a new TerrainEngine instance and creates a new heightmap | ||
80 | /// </summary> | ||
81 | public TerrainEngine() | ||
82 | { | ||
83 | w = 256; | ||
84 | h = 256; | ||
85 | heightmap = new Channel(w, h); | ||
86 | |||
87 | tainted++; | ||
88 | } | ||
89 | |||
90 | /// <summary> | ||
91 | /// Converts the heightmap to a 65536 value 1D floating point array | ||
92 | /// </summary> | ||
93 | /// <returns>A float[65536] array containing the heightmap</returns> | ||
94 | public float[] getHeights1D() | ||
95 | { | ||
96 | float[] heights = new float[w * h]; | ||
97 | int i; | ||
98 | |||
99 | for (i = 0; i < w * h; i++) | ||
100 | { | ||
101 | heights[i] = (float)heightmap.map[i / w, i % w]; | ||
102 | } | ||
103 | |||
104 | return heights; | ||
105 | } | ||
106 | |||
107 | /// <summary> | ||
108 | /// Converts the heightmap to a 256x256 value 2D floating point array. | ||
109 | /// </summary> | ||
110 | /// <returns>An array of 256,256 values containing the heightmap</returns> | ||
111 | public float[,] getHeights2D() | ||
112 | { | ||
113 | float[,] heights = new float[w, h]; | ||
114 | int x, y; | ||
115 | for (x = 0; x < w; x++) | ||
116 | { | ||
117 | for (y = 0; y < h; y++) | ||
118 | { | ||
119 | heights[x, y] = (float)heightmap.map[x, y]; | ||
120 | } | ||
121 | } | ||
122 | return heights; | ||
123 | } | ||
124 | |||
125 | /// <summary> | ||
126 | /// Imports a 1D floating point array into the 2D heightmap array | ||
127 | /// </summary> | ||
128 | /// <param name="heights">The array to import (must have 65536 members)</param> | ||
129 | public void setHeights1D(float[] heights) | ||
130 | { | ||
131 | int i; | ||
132 | for (i = 0; i < w * h; i++) | ||
133 | { | ||
134 | heightmap.map[i / w, i % w] = heights[i]; | ||
135 | } | ||
136 | |||
137 | tainted++; | ||
138 | } | ||
139 | |||
140 | /// <summary> | ||
141 | /// Loads a 2D array of values into the heightmap | ||
142 | /// </summary> | ||
143 | /// <param name="heights">An array of 256,256 float values</param> | ||
144 | public void setHeights2D(float[,] heights) | ||
145 | { | ||
146 | int x, y; | ||
147 | for (x = 0; x < w; x++) | ||
148 | { | ||
149 | for (y = 0; y < h; y++) | ||
150 | { | ||
151 | heightmap.set(x, y, (double)heights[x, y]); | ||
152 | } | ||
153 | } | ||
154 | tainted++; | ||
155 | } | ||
156 | |||
157 | /// <summary> | ||
158 | /// Swaps the two heightmap buffers (the 'revert map' and the heightmap) | ||
159 | /// </summary> | ||
160 | public void swapRevertMaps() | ||
161 | { | ||
162 | Channel backup = heightmap.copy(); | ||
163 | heightmap = revertmap; | ||
164 | revertmap = backup; | ||
165 | } | ||
166 | |||
167 | /// <summary> | ||
168 | /// Saves the current heightmap into the revertmap | ||
169 | /// </summary> | ||
170 | public void saveRevertMap() | ||
171 | { | ||
172 | revertmap = heightmap.copy(); | ||
173 | } | ||
174 | |||
175 | /// <summary> | ||
176 | /// Processes a terrain-specific command | ||
177 | /// </summary> | ||
178 | /// <param name="args">Commandline arguments (space seperated)</param> | ||
179 | /// <param name="resultText">Reference that returns error or help text if returning false</param> | ||
180 | /// <returns>If the operation was successful (if not, the error is placed into resultText)</returns> | ||
181 | public bool RunTerrainCmd(string[] args, ref string resultText) | ||
182 | { | ||
183 | string command = args[0]; | ||
184 | |||
185 | try | ||
186 | { | ||
187 | |||
188 | switch (command) | ||
189 | { | ||
190 | case "help": | ||
191 | resultText += "terrain regenerate - rebuilds the sims terrain using a default algorithm\n"; | ||
192 | resultText += "terrain voronoi <points> <blocksize> - generates a worley fractal with X points per block"; | ||
193 | resultText += "terrain seed <seed> - sets the random seed value to <seed>\n"; | ||
194 | resultText += "terrain load <type> <filename> - loads a terrain from disk, type can be 'F32', 'F64', 'RAW' or 'IMG'\n"; | ||
195 | resultText += "terrain save <type> <filename> - saves a terrain to disk, type can be 'F32', 'F64' or 'PNG'\n"; | ||
196 | resultText += "terrain save grdmap <filename> <gradient map> - creates a PNG snapshot of the region using a named gradient map\n"; | ||
197 | resultText += "terrain rescale <min> <max> - rescales a terrain to be between <min> and <max> meters high\n"; | ||
198 | resultText += "terrain erode aerobic <windspeed> <pickupmin> <dropmin> <carry> <rounds> <lowest>\n"; | ||
199 | resultText += "terrain erode thermal <talus> <rounds> <carry>\n"; | ||
200 | resultText += "terrain multiply <val> - multiplies a terrain by <val>\n"; | ||
201 | resultText += "terrain revert - reverts the terrain to the stored original\n"; | ||
202 | resultText += "terrain bake - saves the current terrain into the revert map\n"; | ||
203 | resultText += "terrain csfilter <filename.cs> - loads a new filter from the specified .cs file\n"; | ||
204 | resultText += "terrain jsfilter <filename.js> - loads a new filter from the specified .js file\n"; | ||
205 | foreach (KeyValuePair<string, ITerrainFilter> filter in customFilters.filters) | ||
206 | { | ||
207 | resultText += filter.Value.Help(); | ||
208 | } | ||
209 | |||
210 | return false; | ||
211 | |||
212 | case "revert": | ||
213 | swapRevertMaps(); | ||
214 | saveRevertMap(); | ||
215 | break; | ||
216 | |||
217 | case "bake": | ||
218 | saveRevertMap(); | ||
219 | break; | ||
220 | |||
221 | case "seed": | ||
222 | setSeed(Convert.ToInt32(args[1])); | ||
223 | break; | ||
224 | |||
225 | case "erode": | ||
226 | return consoleErosion(args, ref resultText); | ||
227 | |||
228 | case "voronoi": | ||
229 | double[] c = new double[2]; | ||
230 | c[0] = -1; | ||
231 | c[1] = 1; | ||
232 | heightmap.voronoiDiagram(Convert.ToInt32(args[1]), Convert.ToInt32(args[2]), c); | ||
233 | break; | ||
234 | |||
235 | case "hills": | ||
236 | return consoleHills(args, ref resultText); | ||
237 | |||
238 | case "regenerate": | ||
239 | hills(); | ||
240 | break; | ||
241 | |||
242 | case "rescale": | ||
243 | setRange(Convert.ToSingle(args[1]), Convert.ToSingle(args[2])); | ||
244 | break; | ||
245 | |||
246 | case "multiply": | ||
247 | heightmap *= Convert.ToDouble(args[1]); | ||
248 | break; | ||
249 | |||
250 | case "load": | ||
251 | switch (args[1].ToLower()) | ||
252 | { | ||
253 | case "f32": | ||
254 | loadFromFileF32(args[2]); | ||
255 | break; | ||
256 | |||
257 | case "f64": | ||
258 | loadFromFileF64(args[2]); | ||
259 | break; | ||
260 | |||
261 | case "raw": | ||
262 | loadFromFileSLRAW(args[2]); | ||
263 | break; | ||
264 | |||
265 | case "img": | ||
266 | heightmap.loadImage(args[2]); | ||
267 | return false; | ||
268 | |||
269 | default: | ||
270 | resultText = "Unknown image or data format"; | ||
271 | return false; | ||
272 | } | ||
273 | break; | ||
274 | |||
275 | case "save": | ||
276 | switch (args[1].ToLower()) | ||
277 | { | ||
278 | case "f32": | ||
279 | writeToFileF32(args[2]); | ||
280 | break; | ||
281 | |||
282 | case "f64": | ||
283 | writeToFileF64(args[2]); | ||
284 | break; | ||
285 | |||
286 | case "grdmap": | ||
287 | exportImage(args[2], args[3]); | ||
288 | break; | ||
289 | |||
290 | case "png": | ||
291 | heightmap.saveImage(args[2]); | ||
292 | break; | ||
293 | |||
294 | default: | ||
295 | resultText = "Unknown image or data format"; | ||
296 | return false; | ||
297 | } | ||
298 | break; | ||
299 | |||
300 | case "csfilter": | ||
301 | customFilters.LoadFilterCSharp(args[1]); | ||
302 | break; | ||
303 | case "jsfilter": | ||
304 | customFilters.LoadFilterJScript(args[1]); | ||
305 | break; | ||
306 | |||
307 | default: | ||
308 | // Run any custom registered filters | ||
309 | if (customFilters.filters.ContainsKey(command)) | ||
310 | { | ||
311 | customFilters.filters[command].Filter(heightmap, args); | ||
312 | break; | ||
313 | } | ||
314 | else | ||
315 | { | ||
316 | resultText = "Unknown terrain command"; | ||
317 | return false; | ||
318 | } | ||
319 | } | ||
320 | return true; | ||
321 | } | ||
322 | catch (Exception e) | ||
323 | { | ||
324 | resultText = "Error running terrain command: " + e.ToString(); | ||
325 | return false; | ||
326 | } | ||
327 | } | ||
328 | |||
329 | private bool consoleErosion(string[] args, ref string resultText) | ||
330 | { | ||
331 | switch (args[1].ToLower()) | ||
332 | { | ||
333 | case "aerobic": | ||
334 | // WindSpeed, PickupMinimum,DropMinimum,Carry,Rounds,Lowest | ||
335 | heightmap.AerobicErosion(Convert.ToDouble(args[2]), Convert.ToDouble(args[3]), Convert.ToDouble(args[4]), Convert.ToDouble(args[5]), Convert.ToInt32(args[6]), Convert.ToBoolean(args[7])); | ||
336 | break; | ||
337 | case "thermal": | ||
338 | heightmap.thermalWeathering(Convert.ToDouble(args[2]), Convert.ToInt32(args[3]), Convert.ToDouble(args[4])); | ||
339 | break; | ||
340 | default: | ||
341 | resultText = "Unknown erosion type"; | ||
342 | return false; | ||
343 | } | ||
344 | return true; | ||
345 | } | ||
346 | |||
347 | private bool consoleHills(string[] args, ref string resultText) | ||
348 | { | ||
349 | int count; | ||
350 | double sizeMin; | ||
351 | double sizeRange; | ||
352 | bool island; | ||
353 | bool additive; | ||
354 | bool noisy; | ||
355 | |||
356 | if (args.GetLength(0) > 2) | ||
357 | { | ||
358 | count = Convert.ToInt32(args[2]); | ||
359 | sizeMin = Convert.ToDouble(args[3]); | ||
360 | sizeRange = Convert.ToDouble(args[4]); | ||
361 | island = Convert.ToBoolean(args[5]); | ||
362 | additive = Convert.ToBoolean(args[6]); | ||
363 | noisy = Convert.ToBoolean(args[7]); | ||
364 | } | ||
365 | else | ||
366 | { | ||
367 | count = 200; | ||
368 | sizeMin = 20; | ||
369 | sizeRange = 40; | ||
370 | island = true; | ||
371 | additive = true; | ||
372 | noisy = false; | ||
373 | } | ||
374 | |||
375 | switch (args[1].ToLower()) | ||
376 | { | ||
377 | case "blocks": | ||
378 | heightmap.hillsBlocks(count, sizeMin, sizeRange, island, additive, noisy); | ||
379 | break; | ||
380 | case "cones": | ||
381 | heightmap.hillsCones(count, sizeMin, sizeRange, island, additive, noisy); | ||
382 | break; | ||
383 | case "spheres": | ||
384 | heightmap.hillsSpheres(count, sizeMin, sizeRange, island, additive, noisy); | ||
385 | break; | ||
386 | case "squared": | ||
387 | heightmap.hillsSquared(count, sizeMin, sizeRange, island, additive, noisy); | ||
388 | break; | ||
389 | default: | ||
390 | resultText = "Unknown hills type"; | ||
391 | return false; | ||
392 | } | ||
393 | return true; | ||
394 | } | ||
395 | |||
396 | /// <summary> | ||
397 | /// Renormalises the array between min and max | ||
398 | /// </summary> | ||
399 | /// <param name="min">Minimum value of the new array</param> | ||
400 | /// <param name="max">Maximum value of the new array</param> | ||
401 | public void setRange(float min, float max) | ||
402 | { | ||
403 | heightmap.normalise((double)min, (double)max); | ||
404 | tainted++; | ||
405 | } | ||
406 | |||
407 | /// <summary> | ||
408 | /// Loads a file consisting of 256x256 doubles and imports it as an array into the map. | ||
409 | /// </summary> | ||
410 | /// <remarks>TODO: Move this to libTerrain itself</remarks> | ||
411 | /// <param name="filename">The filename of the double array to import</param> | ||
412 | public void loadFromFileF64(string filename) | ||
413 | { | ||
414 | System.IO.FileInfo file = new System.IO.FileInfo(filename); | ||
415 | System.IO.FileStream s = file.Open(System.IO.FileMode.Open, System.IO.FileAccess.Read); | ||
416 | System.IO.BinaryReader bs = new System.IO.BinaryReader(s); | ||
417 | int x, y; | ||
418 | for (x = 0; x < w; x++) | ||
419 | { | ||
420 | for (y = 0; y < h; y++) | ||
421 | { | ||
422 | heightmap.map[x, y] = bs.ReadDouble(); | ||
423 | } | ||
424 | } | ||
425 | |||
426 | bs.Close(); | ||
427 | s.Close(); | ||
428 | |||
429 | tainted++; | ||
430 | } | ||
431 | |||
432 | /// <summary> | ||
433 | /// Loads a file consisting of 256x256 floats and imports it as an array into the map. | ||
434 | /// </summary> | ||
435 | /// <remarks>TODO: Move this to libTerrain itself</remarks> | ||
436 | /// <param name="filename">The filename of the float array to import</param> | ||
437 | public void loadFromFileF32(string filename) | ||
438 | { | ||
439 | System.IO.FileInfo file = new System.IO.FileInfo(filename); | ||
440 | System.IO.FileStream s = file.Open(System.IO.FileMode.Open, System.IO.FileAccess.Read); | ||
441 | System.IO.BinaryReader bs = new System.IO.BinaryReader(s); | ||
442 | int x, y; | ||
443 | for (x = 0; x < w; x++) | ||
444 | { | ||
445 | for (y = 0; y < h; y++) | ||
446 | { | ||
447 | heightmap.map[x, y] = (double)bs.ReadSingle(); | ||
448 | } | ||
449 | } | ||
450 | |||
451 | bs.Close(); | ||
452 | s.Close(); | ||
453 | |||
454 | tainted++; | ||
455 | } | ||
456 | |||
457 | /// <summary> | ||
458 | /// Loads a file formatted in the SL .RAW Format used on the main grid | ||
459 | /// </summary> | ||
460 | /// <remarks>This file format stinks and is best avoided.</remarks> | ||
461 | /// <param name="filename">A path to the .RAW format</param> | ||
462 | public void loadFromFileSLRAW(string filename) | ||
463 | { | ||
464 | System.IO.FileInfo file = new System.IO.FileInfo(filename); | ||
465 | System.IO.FileStream s = file.Open(System.IO.FileMode.Open, System.IO.FileAccess.Read); | ||
466 | System.IO.BinaryReader bs = new System.IO.BinaryReader(s); | ||
467 | int x, y; | ||
468 | for (x = 0; x < w; x++) | ||
469 | { | ||
470 | for (y = 0; y < h; y++) | ||
471 | { | ||
472 | heightmap.map[x, y] = (double)bs.ReadByte() * ((double)bs.ReadByte() / 127.0); | ||
473 | bs.ReadBytes(11); // Advance the stream to next bytes. | ||
474 | } | ||
475 | } | ||
476 | |||
477 | bs.Close(); | ||
478 | s.Close(); | ||
479 | |||
480 | tainted++; | ||
481 | } | ||
482 | |||
483 | /// <summary> | ||
484 | /// Writes the current terrain heightmap to disk, in the format of a 65536 entry double[] array. | ||
485 | /// </summary> | ||
486 | /// <param name="filename">The desired output filename</param> | ||
487 | public void writeToFileF64(string filename) | ||
488 | { | ||
489 | System.IO.FileInfo file = new System.IO.FileInfo(filename); | ||
490 | System.IO.FileStream s = file.Open(System.IO.FileMode.CreateNew, System.IO.FileAccess.Write); | ||
491 | System.IO.BinaryWriter bs = new System.IO.BinaryWriter(s); | ||
492 | |||
493 | int x, y; | ||
494 | for (x = 0; x < w; x++) | ||
495 | { | ||
496 | for (y = 0; y < h; y++) | ||
497 | { | ||
498 | bs.Write(heightmap.get(x, y)); | ||
499 | } | ||
500 | } | ||
501 | |||
502 | bs.Close(); | ||
503 | s.Close(); | ||
504 | } | ||
505 | |||
506 | /// <summary> | ||
507 | /// Writes the current terrain heightmap to disk, in the format of a 65536 entry float[] array | ||
508 | /// </summary> | ||
509 | /// <param name="filename">The desired output filename</param> | ||
510 | public void writeToFileF32(string filename) | ||
511 | { | ||
512 | System.IO.FileInfo file = new System.IO.FileInfo(filename); | ||
513 | System.IO.FileStream s = file.Open(System.IO.FileMode.CreateNew, System.IO.FileAccess.Write); | ||
514 | System.IO.BinaryWriter bs = new System.IO.BinaryWriter(s); | ||
515 | |||
516 | int x, y; | ||
517 | for (x = 0; x < w; x++) | ||
518 | { | ||
519 | for (y = 0; y < h; y++) | ||
520 | { | ||
521 | bs.Write((float)heightmap.get(x, y)); | ||
522 | } | ||
523 | } | ||
524 | |||
525 | bs.Close(); | ||
526 | s.Close(); | ||
527 | } | ||
528 | |||
529 | /// <summary> | ||
530 | /// Sets the random seed to be used by procedural functions which involve random numbers. | ||
531 | /// </summary> | ||
532 | /// <param name="val">The desired seed</param> | ||
533 | public void setSeed(int val) | ||
534 | { | ||
535 | heightmap.seed = val; | ||
536 | } | ||
537 | |||
538 | /// <summary> | ||
539 | /// Raises land in a sphere around the specified coordinates | ||
540 | /// </summary> | ||
541 | /// <param name="rx">Center of the sphere on the X axis</param> | ||
542 | /// <param name="ry">Center of the sphere on the Y axis</param> | ||
543 | /// <param name="size">The radius of the sphere</param> | ||
544 | /// <param name="amount">Scale the height of the sphere by this amount (recommended 0..2)</param> | ||
545 | public void raise(double rx, double ry, double size, double amount) | ||
546 | { | ||
547 | lock (heightmap) | ||
548 | { | ||
549 | heightmap.raise(rx, ry, size, amount); | ||
550 | } | ||
551 | |||
552 | tainted++; | ||
553 | } | ||
554 | |||
555 | /// <summary> | ||
556 | /// Lowers the land in a sphere around the specified coordinates | ||
557 | /// </summary> | ||
558 | /// <param name="rx">The center of the sphere at the X axis</param> | ||
559 | /// <param name="ry">The center of the sphere at the Y axis</param> | ||
560 | /// <param name="size">The radius of the sphere in meters</param> | ||
561 | /// <param name="amount">Scale the height of the sphere by this amount (recommended 0..2)</param> | ||
562 | public void lower(double rx, double ry, double size, double amount) | ||
563 | { | ||
564 | lock (heightmap) | ||
565 | { | ||
566 | heightmap.lower(rx, ry, size, amount); | ||
567 | } | ||
568 | |||
569 | tainted++; | ||
570 | } | ||
571 | |||
572 | /// <summary> | ||
573 | /// Flattens the land under the brush of specified coordinates (spherical mask) | ||
574 | /// </summary> | ||
575 | /// <param name="rx">Center of sphere</param> | ||
576 | /// <param name="ry">Center of sphere</param> | ||
577 | /// <param name="size">Radius of the sphere</param> | ||
578 | /// <param name="amount">Thickness of the mask (0..2 recommended)</param> | ||
579 | public void flatten(double rx, double ry, double size, double amount) | ||
580 | { | ||
581 | lock (heightmap) | ||
582 | { | ||
583 | heightmap.flatten(rx, ry, size, amount); | ||
584 | } | ||
585 | |||
586 | tainted++; | ||
587 | } | ||
588 | |||
589 | /// <summary> | ||
590 | /// Creates noise within the specified bounds | ||
591 | /// </summary> | ||
592 | /// <param name="rx">Center of the bounding sphere</param> | ||
593 | /// <param name="ry">Center of the bounding sphere</param> | ||
594 | /// <param name="size">The radius of the sphere</param> | ||
595 | /// <param name="amount">Strength of the mask (0..2) recommended</param> | ||
596 | public void noise(double rx, double ry, double size, double amount) | ||
597 | { | ||
598 | lock (heightmap) | ||
599 | { | ||
600 | Channel smoothed = new Channel(); | ||
601 | smoothed.noise(); | ||
602 | |||
603 | Channel mask = new Channel(); | ||
604 | mask.raise(rx, ry, size, amount); | ||
605 | |||
606 | heightmap.blend(smoothed, mask); | ||
607 | } | ||
608 | |||
609 | tainted++; | ||
610 | } | ||
611 | |||
612 | /// <summary> | ||
613 | /// Reverts land within the specified bounds | ||
614 | /// </summary> | ||
615 | /// <param name="rx">Center of the bounding sphere</param> | ||
616 | /// <param name="ry">Center of the bounding sphere</param> | ||
617 | /// <param name="size">The radius of the sphere</param> | ||
618 | /// <param name="amount">Strength of the mask (0..2) recommended</param> | ||
619 | public void revert(double rx, double ry, double size, double amount) | ||
620 | { | ||
621 | lock (heightmap) | ||
622 | { | ||
623 | Channel mask = new Channel(); | ||
624 | mask.raise(rx, ry, size, amount); | ||
625 | |||
626 | heightmap.blend(revertmap, mask); | ||
627 | } | ||
628 | |||
629 | tainted++; | ||
630 | } | ||
631 | |||
632 | /// <summary> | ||
633 | /// Smooths land under the brush of specified coordinates (spherical mask) | ||
634 | /// </summary> | ||
635 | /// <param name="rx">Center of the sphere</param> | ||
636 | /// <param name="ry">Center of the sphere</param> | ||
637 | /// <param name="size">Radius of the sphere</param> | ||
638 | /// <param name="amount">Thickness of the mask (0..2 recommended)</param> | ||
639 | public void smooth(double rx, double ry, double size, double amount) | ||
640 | { | ||
641 | lock (heightmap) | ||
642 | { | ||
643 | Channel smoothed = heightmap.copy(); | ||
644 | smoothed.smooth(amount); | ||
645 | |||
646 | Channel mask = new Channel(); | ||
647 | mask.raise(rx,ry,size,amount); | ||
648 | |||
649 | heightmap.blend(smoothed, mask); | ||
650 | } | ||
651 | |||
652 | tainted++; | ||
653 | } | ||
654 | |||
655 | /// <summary> | ||
656 | /// Generates a simple set of hills in the shape of an island | ||
657 | /// </summary> | ||
658 | public void hills() | ||
659 | { | ||
660 | lock (heightmap) | ||
661 | { | ||
662 | heightmap.hillsSpheres(200, 20, 40, true, true, false); | ||
663 | heightmap.normalise(); | ||
664 | heightmap *= 60.0; // Raise to 60m | ||
665 | } | ||
666 | |||
667 | tainted++; | ||
668 | } | ||
669 | |||
670 | /// <summary> | ||
671 | /// Multiplies the heightfield by val | ||
672 | /// </summary> | ||
673 | /// <param name="meep">The heightfield</param> | ||
674 | /// <param name="val">The multiplier</param> | ||
675 | /// <returns></returns> | ||
676 | public static TerrainEngine operator *(TerrainEngine meep, Double val) | ||
677 | { | ||
678 | meep.heightmap *= val; | ||
679 | meep.tainted++; | ||
680 | return meep; | ||
681 | } | ||
682 | |||
683 | /// <summary> | ||
684 | /// Returns the height at the coordinates x,y | ||
685 | /// </summary> | ||
686 | /// <param name="x">X Coordinate</param> | ||
687 | /// <param name="y">Y Coordinate</param> | ||
688 | /// <returns></returns> | ||
689 | public float this[int x, int y] | ||
690 | { | ||
691 | get | ||
692 | { | ||
693 | return (float)heightmap.get(x, y); | ||
694 | } | ||
695 | set | ||
696 | { | ||
697 | tainted++; | ||
698 | heightmap.set(x, y, (double)value); | ||
699 | } | ||
700 | } | ||
701 | |||
702 | /// <summary> | ||
703 | /// Exports the current heightmap to a PNG file | ||
704 | /// </summary> | ||
705 | /// <param name="filename">The destination filename for the image</param> | ||
706 | /// <param name="gradientmap">A 1x*height* image which contains the colour gradient to export with. Must be at least 1x2 pixels, 1x256 or more is ideal.</param> | ||
707 | public void exportImage(string filename, string gradientmap) | ||
708 | { | ||
709 | try | ||
710 | { | ||
711 | Bitmap gradientmapLd = new Bitmap(gradientmap); | ||
712 | |||
713 | int pallete = gradientmapLd.Height; | ||
714 | |||
715 | Bitmap bmp = new Bitmap(heightmap.w, heightmap.h); | ||
716 | Color[] colours = new Color[pallete]; | ||
717 | |||
718 | for (int i = 0; i < pallete; i++) | ||
719 | { | ||
720 | colours[i] = gradientmapLd.GetPixel(0, i); | ||
721 | } | ||
722 | |||
723 | Channel copy = heightmap.copy(); | ||
724 | for (int x = 0; x < copy.w; x++) | ||
725 | { | ||
726 | for (int y = 0; y < copy.h; y++) | ||
727 | { | ||
728 | // 512 is the largest possible height before colours clamp | ||
729 | int colorindex = (int)(Math.Max(Math.Min(1.0, copy.get(x, y) / 512.0), 0.0) * pallete); | ||
730 | bmp.SetPixel(x, y, colours[colorindex]); | ||
731 | } | ||
732 | } | ||
733 | |||
734 | bmp.Save(filename, System.Drawing.Imaging.ImageFormat.Png); | ||
735 | } | ||
736 | catch (Exception e) | ||
737 | { | ||
738 | Console.WriteLine("Failed generating terrain map: " + e.ToString()); | ||
739 | } | ||
740 | } | ||
741 | |||
742 | /// <summary> | ||
743 | /// Exports the current heightmap in Jpeg2000 format to a byte[] | ||
744 | /// </summary> | ||
745 | /// <param name="gradientmap">A 1x*height* image which contains the colour gradient to export with. Must be at least 1x2 pixels, 1x256 or more is ideal.</param> | ||
746 | public byte[] exportJpegImage(string gradientmap) | ||
747 | { | ||
748 | byte[] imageData = null; | ||
749 | try | ||
750 | { | ||
751 | Bitmap gradientmapLd = new Bitmap(gradientmap); | ||
752 | |||
753 | int pallete = gradientmapLd.Height; | ||
754 | |||
755 | Bitmap bmp = new Bitmap(heightmap.w, heightmap.h); | ||
756 | Color[] colours = new Color[pallete]; | ||
757 | |||
758 | for (int i = 0; i < pallete; i++) | ||
759 | { | ||
760 | colours[i] = gradientmapLd.GetPixel(0, i); | ||
761 | } | ||
762 | |||
763 | Channel copy = heightmap.copy(); | ||
764 | for (int x = 0; x < copy.w; x++) | ||
765 | { | ||
766 | for (int y = 0; y < copy.h; y++) | ||
767 | { | ||
768 | // 512 is the largest possible height before colours clamp | ||
769 | int colorindex = (int)(Math.Max(Math.Min(1.0, copy.get(copy.h - y, x) / 512.0), 0.0) * pallete); | ||
770 | bmp.SetPixel(x, y, colours[colorindex]); | ||
771 | } | ||
772 | } | ||
773 | |||
774 | //bmp.Save(filename, System.Drawing.Imaging.ImageFormat.Png); | ||
775 | imageData = OpenJPEGNet.OpenJPEG.EncodeFromImage(bmp, "map"); | ||
776 | |||
777 | } | ||
778 | catch (Exception e) | ||
779 | { | ||
780 | Console.WriteLine("Failed generating terrain map: " + e.ToString()); | ||
781 | } | ||
782 | |||
783 | return imageData; | ||
784 | } | ||
785 | } | ||
786 | } \ No newline at end of file | ||