Simulation
The Code
1 class Simulation
2 {
3 private Location[,] Landscape;
4 private int TimePeriod = 0;
5 private int WarrenCount = 0;
6 private int FoxCount = 0;
7 private bool ShowDetail = false;
8 private int LandscapeSize;
9 private int Variability;
10 private static Random Rnd = new Random();
11
12 public Simulation(int LandscapeSize, int InitialWarrenCount, int InitialFoxCount, int Variability, bool FixedInitialLocations)
13 {
14 int menuOption;
15 int x;
16 int y;
17 string viewRabbits;
18 this.LandscapeSize = LandscapeSize;
19 this.Variability = Variability;
20 Landscape = new Location[LandscapeSize, LandscapeSize];
21 CreateLandscapeAndAnimals(InitialWarrenCount, InitialFoxCount, FixedInitialLocations);
22 DrawLandscape();
23 do
24 {
25 Console.WriteLine();
26 Console.WriteLine("1. Advance to next time period showing detail");
27 Console.WriteLine("2. Advance to next time period hiding detail");
28 Console.WriteLine("3. Inspect fox");
29 Console.WriteLine("4. Inspect warren");
30 Console.WriteLine("5. Exit");
31 Console.WriteLine();
32 Console.Write("Select option: ");
33 menuOption = Convert.ToInt32(Console.ReadLine());
34 if (menuOption == 1)
35 {
36 TimePeriod++;
37 ShowDetail = true;
38 AdvanceTimePeriod();
39 }
40 if (menuOption == 2)
41 {
42 TimePeriod++;
43 ShowDetail = false;
44 AdvanceTimePeriod();
45 }
46 if (menuOption == 3)
47 {
48 x = InputCoordinate('x');
49 y = InputCoordinate('y');
50 if (Landscape[x, y].Fox != null)
51 {
52 Landscape[x, y].Fox.Inspect();
53 }
54 }
55 if (menuOption == 4)
56 {
57 x = InputCoordinate('x');
58 y = InputCoordinate('y');
59 if (Landscape[x, y].Warren != null)
60 {
61 Landscape[x, y].Warren.Inspect();
62 Console.Write("View individual rabbits (y/n)?");
63 viewRabbits = Console.ReadLine();
64 if (viewRabbits == "y") {
65 Landscape[x, y].Warren.ListRabbits();
66 }
67 }
68 }
69 } while (((WarrenCount > 0) || (FoxCount > 0)) && (menuOption != 5));
70 Console.ReadKey();
71 }
72
73 private int InputCoordinate(char Coordinatename)
74 {
75 int Coordinate;
76 Console.Write(" Input " + Coordinatename + " coordinate: ");
77 Coordinate = Convert.ToInt32(Console.ReadLine());
78 return Coordinate;
79 }
80
81 private void AdvanceTimePeriod()
82 {
83 int NewFoxCount = 0;
84 if (ShowDetail)
85 {
86 Console.WriteLine();
87 }
88 for (int x = 0; x < LandscapeSize; x++)
89 {
90 for (int y = 0; y < LandscapeSize; y++)
91 {
92 if (Landscape[x, y].Warren != null)
93 {
94 if (ShowDetail)
95 {
96 Console.WriteLine("Warren at (" + x + "," + y + "):");
97 Console.Write(" Period Start: ");
98 Landscape[x, y].Warren.Inspect();
99 }
100 if (FoxCount > 0)
101 {
102 FoxesEatRabbitsInWarren(x, y);
103 }
104 if (Landscape[x, y].Warren.NeedToCreateNewWarren())
105 {
106 CreateNewWarren();
107 }
108 Landscape[x, y].Warren.AdvanceGeneration(ShowDetail);
109 if (ShowDetail)
110 {
111 Console.Write(" Period End: ");
112 Landscape[x, y].Warren.Inspect();
113 Console.ReadKey();
114 }
115 if (Landscape[x, y].Warren.WarrenHasDiedOut())
116 {
117 Landscape[x, y].Warren = null;
118 WarrenCount--;
119 }
120 }
121 }
122 }
123 for (int x = 0; x < LandscapeSize; x++)
124 {
125 for (int y = 0; y < LandscapeSize; y++)
126 {
127 if (Landscape[x, y].Fox != null)
128 {
129 if (ShowDetail)
130 {
131 Console.WriteLine("Fox at (" + x + "," + y + "): ");
132 }
133 Landscape[x, y].Fox.AdvanceGeneration(ShowDetail);
134 if (Landscape[x, y].Fox.CheckIfDead())
135 {
136 Landscape[x, y].Fox = null;
137 FoxCount--;
138 }
139 else
140 {
141 if (Landscape[x, y].Fox.ReproduceThisPeriod())
142 {
143 if (ShowDetail) {
144 Console.WriteLine(" Fox has reproduced. ");
145 }
146 NewFoxCount++;
147 }
148 if (ShowDetail) {
149 Landscape[x, y].Fox.Inspect();
150 }
151 Landscape[x, y].Fox.ResetFoodConsumed();
152 }
153 }
154 }
155 }
156 if (NewFoxCount > 0)
157 {
158 if (ShowDetail)
159 {
160 Console.WriteLine("New foxes born: ");
161 }
162 for (int f = 0; f < NewFoxCount; f++) {
163 CreateNewFox();
164 }
165 }
166 if (ShowDetail) {
167 Console.ReadKey();
168 }
169 DrawLandscape();
170 Console.WriteLine();
171 }
172
173 private void CreateLandscapeAndAnimals(int InitialWarrenCount, int InitialFoxCount, bool FixedInitialLocations)
174 {
175 for (int x = 0; x < LandscapeSize; x++)
176 {
177 for (int y = 0; y < LandscapeSize; y++)
178 {
179 Landscape[x, y] = new Location();
180 }
181 }
182 if (FixedInitialLocations)
183 {
184 Landscape[1, 1].Warren = new Warren(Variability, 38);
185 Landscape[2, 8].Warren = new Warren(Variability, 80);
186 Landscape[9, 7].Warren = new Warren(Variability, 20);
187 Landscape[10, 3].Warren = new Warren(Variability, 52);
188 Landscape[13, 4].Warren = new Warren(Variability, 67);
189 WarrenCount = 5;
190 Landscape[2, 10].Fox = new Fox(Variability);
191 Landscape[6, 1].Fox = new Fox(Variability);
192 Landscape[8, 6].Fox = new Fox(Variability);
193 Landscape[11, 13].Fox = new Fox(Variability);
194 Landscape[12, 4].Fox = new Fox(Variability);
195 FoxCount = 5;
196 }
197 else
198 {
199 for (int w = 0; w < InitialWarrenCount; w++)
200 {
201 CreateNewWarren();
202 }
203 for (int f = 0; f < InitialFoxCount; f++)
204 {
205 CreateNewFox();
206 }
207 }
208 }
209
210 private void CreateNewWarren()
211 {
212 int x, y;
213 do
214 {
215 x = Rnd.Next(0, LandscapeSize);
216 y = Rnd.Next(0, LandscapeSize);
217 } while (Landscape[x, y].Warren != null);
218 if (ShowDetail)
219 {
220 Console.WriteLine("New Warren at (" + x + "," + y + ")");
221 }
222 Landscape[x, y].Warren = new Warren(Variability);
223 WarrenCount++;
224 }
225
226 private void CreateNewFox()
227 {
228 int x, y;
229 do
230 {
231 x = Rnd.Next(0, LandscapeSize);
232 y = Rnd.Next(0, LandscapeSize);
233 } while (Landscape[x, y].Fox != null);
234 if (ShowDetail) {
235 Console.WriteLine(" New Fox at (" + x + "," + y + ")");
236 }
237 Landscape[x, y].Fox = new Fox(Variability);
238 FoxCount++;
239 }
240
241 private void FoxesEatRabbitsInWarren(int WarrenX, int WarrenY)
242 {
243 int FoodConsumed;
244 int PercentToEat;
245 double Dist;
246 int RabbitsToEat;
247 int RabbitCountAtStartOfPeriod = Landscape[WarrenX, WarrenY].Warren.GetRabbitCount();
248 for (int FoxX = 0; FoxX < LandscapeSize; FoxX++)
249 {
250 for (int FoxY = 0; FoxY < LandscapeSize; FoxY++)
251 {
252 if (Landscape[FoxX, FoxY].Fox != null)
253 {
254 Dist = DistanceBetween(FoxX, FoxY, WarrenX, WarrenY);
255 if (Dist <= 3.5)
256 {
257 PercentToEat = 20;
258 }
259 else if (Dist <= 7)
260 {
261 PercentToEat = 10;
262 }
263 else
264 {
265 PercentToEat = 0;
266 }
267 RabbitsToEat = (int)Math.Round((double)(PercentToEat * RabbitCountAtStartOfPeriod / 100.0));
268 FoodConsumed = Landscape[WarrenX, WarrenY].Warren.EatRabbits(RabbitsToEat);
269 Landscape[FoxX, FoxY].Fox.GiveFood(FoodConsumed);
270 if (ShowDetail)
271 {
272 Console.WriteLine(" " + FoodConsumed + " rabbits eaten by fox at (" + FoxX + "," + FoxY + ").");
273 }
274 }
275 }
276 }
277 }
278
279 private double DistanceBetween(int x1, int y1, int x2, int y2)
280 {
281 return Math.Sqrt(Math.Pow(x1 - x2, 2) + Math.Pow(y1 - y2, 2));
282 }
283
284 private void DrawLandscape()
285 {
286 Console.WriteLine();
287 Console.WriteLine("TIME PERIOD: " + TimePeriod);
288 Console.WriteLine();
289 Console.Write(" ");
290 for (int x = 0; x < LandscapeSize; x++)
291 {
292 if (x < 10)
293 {
294 Console.Write(" ");
295 }
296 Console.Write(x + " |");
297 }
298 Console.WriteLine();
299 for (int x = 0; x <= LandscapeSize * 4 + 3; x++)
300 {
301 Console.Write("-");
302 }
303 Console.WriteLine();
304 for (int y = 0; y < LandscapeSize; y++)
305 {
306 if (y < 10) {
307 Console.Write(" ");
308 }
309 Console.Write(" " + y + "|");
310 for (int x = 0; x < LandscapeSize; x++)
311 {
312 if (Landscape[x, y].Warren != null)
313 {
314 if (Landscape[x, y].Warren.GetRabbitCount() < 10)
315 {
316 Console.Write(" ");
317 }
318 Console.Write(Landscape[x, y].Warren.GetRabbitCount());
319 }
320 else
321 {
322 Console.Write(" ");
323 }
324 if (Landscape[x, y].Fox != null)
325 {
326 Console.Write("F");
327 }
328 else
329 {
330 Console.Write(" ");
331 }
332 Console.Write("|");
333 }
334 Console.WriteLine();
335 }
336 }
337 }
Explanation
Lines 3 to 10 create the variables used by the class, and the declaration for Landscape is a 2D array of Locations.
The method with the same name as the class will be run when the class is instantiated. this method receives the values passed from the main section.
Landscape is created with the size passed (line 20).
The CreateLandscapeAndAminals method is called (line21) which sets up each location and adds the appropriate number of warrens and foxes. This can either use the fixed locations or randomly generated ones.
The Landscape is then drawn onto the screen (line 22). This will draw each location and the contents of it.
You are then inside of the simulation loop starting on line 23 & 24.
Options 1 & 2 will both advance the time period by incrementing TimePeriod and then calling the AdvanceTimePeriod method.
