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1 /* s_eval.c
2 *
3 * Micropolis, Unix Version. This game was released for the Unix platform
4 * in or about 1990 and has been modified for inclusion in the One Laptop
5 * Per Child program. Copyright (C) 1989 - 2007 Electronic Arts Inc. If
6 * you need assistance with this program, you may contact:
7 * http://wiki.laptop.org/go/Micropolis or email micropolis@laptop.org.
8 *
9 * This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or (at
12 * your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details. You should have received a
18 * copy of the GNU General Public License along with this program. If
19 * not, see <http://www.gnu.org/licenses/>.
20 *
21 * ADDITIONAL TERMS per GNU GPL Section 7
22 *
23 * No trademark or publicity rights are granted. This license does NOT
24 * give you any right, title or interest in the trademark SimCity or any
25 * other Electronic Arts trademark. You may not distribute any
26 * modification of this program using the trademark SimCity or claim any
27 * affliation or association with Electronic Arts Inc. or its employees.
28 *
29 * Any propagation or conveyance of this program must include this
30 * copyright notice and these terms.
31 *
32 * If you convey this program (or any modifications of it) and assume
33 * contractual liability for the program to recipients of it, you agree
34 * to indemnify Electronic Arts for any liability that those contractual
35 * assumptions impose on Electronic Arts.
36 *
37 * You may not misrepresent the origins of this program; modified
38 * versions of the program must be marked as such and not identified as
39 * the original program.
40 *
41 * This disclaimer supplements the one included in the General Public
42 * License. TO THE FULLEST EXTENT PERMISSIBLE UNDER APPLICABLE LAW, THIS
43 * PROGRAM IS PROVIDED TO YOU "AS IS," WITH ALL FAULTS, WITHOUT WARRANTY
44 * OF ANY KIND, AND YOUR USE IS AT YOUR SOLE RISK. THE ENTIRE RISK OF
45 * SATISFACTORY QUALITY AND PERFORMANCE RESIDES WITH YOU. ELECTRONIC ARTS
46 * DISCLAIMS ANY AND ALL EXPRESS, IMPLIED OR STATUTORY WARRANTIES,
47 * INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY, SATISFACTORY QUALITY,
48 * FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT OF THIRD PARTY
49 * RIGHTS, AND WARRANTIES (IF ANY) ARISING FROM A COURSE OF DEALING,
50 * USAGE, OR TRADE PRACTICE. ELECTRONIC ARTS DOES NOT WARRANT AGAINST
51 * INTERFERENCE WITH YOUR ENJOYMENT OF THE PROGRAM; THAT THE PROGRAM WILL
52 * MEET YOUR REQUIREMENTS; THAT OPERATION OF THE PROGRAM WILL BE
53 * UNINTERRUPTED OR ERROR-FREE, OR THAT THE PROGRAM WILL BE COMPATIBLE
54 * WITH THIRD PARTY SOFTWARE OR THAT ANY ERRORS IN THE PROGRAM WILL BE
55 * CORRECTED. NO ORAL OR WRITTEN ADVICE PROVIDED BY ELECTRONIC ARTS OR
56 * ANY AUTHORIZED REPRESENTATIVE SHALL CREATE A WARRANTY. SOME
57 * JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF OR LIMITATIONS ON IMPLIED
58 * WARRANTIES OR THE LIMITATIONS ON THE APPLICABLE STATUTORY RIGHTS OF A
59 * CONSUMER, SO SOME OR ALL OF THE ABOVE EXCLUSIONS AND LIMITATIONS MAY
60 * NOT APPLY TO YOU.
61 */
62 #include "sim.h"
63
64
65 /* City Evaluation */
66
67
68 short EvalValid;
69 short CityYes, CityNo;
70 short ProblemTable[PROBNUM];
71 short ProblemTaken[PROBNUM];
72 short ProblemVotes[PROBNUM]; /* these are the votes for each */
73 short ProblemOrder[4]; /* sorted index to above */
74 QUAD CityPop, deltaCityPop;
75 QUAD CityAssValue;
76 short CityClass; /* 0..5 */
77 short CityScore, deltaCityScore, AverageCityScore;
78 short TrafficAverage;
79
80 void DoVotes(void);
81 void GetScore(void);
82 void VoteProblems(void);
83 void DoProblems(void);
84 void DoPopNum(void);
85 void GetAssValue(void);
86
87
88 /* comefrom: SpecialInit Simulate */
89 void
90 CityEvaluation(void)
91 {
92 EvalValid = 0;
93 if (TotalPop) {
94 GetAssValue();
95 DoPopNum();
96 DoProblems();
97 GetScore();
98 DoVotes();
99 ChangeEval();
100 } else {
101 EvalInit();
102 ChangeEval();
103 }
104 EvalValid = 1;
105 }
106
107
108 /* comefrom: CityEvaluation SetCommonInits */
109 void
110 EvalInit(void)
111 {
112 register short x, z;
113
114 z = 0;
115 CityYes = z;
116 CityNo = z;
117 CityPop = z;
118 deltaCityPop = z;
119 CityAssValue = z;
120 CityClass = z;
121 CityScore = 500;
122 deltaCityScore = z;
123 EvalValid = 1;
124 for (x = 0; x < PROBNUM; x++)
125 ProblemVotes[x] = z;
126 for (x = 0; x < 4; x++)
127 ProblemOrder[x] = z;
128 }
129
130
131 /* comefrom: CityEvaluation */
132 void
133 GetAssValue(void)
134 {
135 QUAD z;
136
137 z = RoadTotal * 5;
138 z += RailTotal * 10;
139 z += PolicePop * 1000;
140 z += FireStPop * 1000;
141 z += HospPop * 400;
142 z += StadiumPop * 3000;
143 z += PortPop * 5000;
144 z += APortPop * 10000;
145 z += CoalPop * 3000;
146 z += NuclearPop * 6000;
147 CityAssValue = z * 1000;
148 }
149
150
151 /* comefrom: CityEvaluation */
152 void
153 DoPopNum(void)
154 {
155 QUAD OldCityPop;
156
157 OldCityPop = CityPop;
158 CityPop = ((ResPop) + (ComPop * 8L) + (IndPop *8L)) * 20L;
159 if (OldCityPop == -1) {
160 OldCityPop = CityPop;
161 }
162 deltaCityPop = CityPop - OldCityPop;
163
164 CityClass = 0; /* village */
165 if (CityPop > 2000) CityClass++; /* town */
166 if (CityPop > 10000) CityClass++; /* city */
167 if (CityPop > 50000) CityClass++; /* capital */
168 if (CityPop > 100000) CityClass++; /* metropolis */
169 if (CityPop > 500000) CityClass++; /* megalopolis */
170 }
171
172
173 /* comefrom: CityEvaluation */
174 void
175 DoProblems(void)
176 {
177 register short x, z;
178 short ThisProb = 0, Max;
179
180 for (z = 0; z < PROBNUM; z++)
181 ProblemTable[z] = 0;
182 ProblemTable[0] = CrimeAverage; /* Crime */
183 ProblemTable[1] = PolluteAverage; /* Pollution */
184 ProblemTable[2] = LVAverage * .7; /* Housing */
185 ProblemTable[3] = CityTax * 10; /* Taxes */
186 ProblemTable[4] = AverageTrf(); /* Traffic */
187 ProblemTable[5] = GetUnemployment(); /* Unemployment */
188 ProblemTable[6] = GetFire(); /* Fire */
189 VoteProblems();
190 for (z = 0; z < PROBNUM; z++)
191 ProblemTaken[z] = 0;
192 for (z = 0; z < 4; z++) {
193 Max = 0;
194 for (x = 0; x < 7; x++) {
195 if ((ProblemVotes[x] > Max) && (!ProblemTaken[x])) {
196 ThisProb = x;
197 Max = ProblemVotes[x];
198 }
199 }
200 if (Max) {
201 ProblemTaken[ThisProb] = 1;
202 ProblemOrder[z] = ThisProb;
203 }
204 else {
205 ProblemOrder[z] = 7;
206 ProblemTable[7] = 0;
207 }
208 }
209 }
210
211
212 /* comefrom: DoProblems */
213 void
214 VoteProblems(void)
215 {
216 register int x, z, count;
217
218 for (z = 0; z < PROBNUM; z++)
219 ProblemVotes[z] = 0;
220
221 x = 0;
222 z = 0;
223 count = 0;
224 while ((z < 100) && (count < 600)) {
225 if (Rand(300) < ProblemTable[x]) {
226 ProblemVotes[x]++;
227 z++;
228 }
229 x++;
230 if (x > PROBNUM) x = 0;
231 count++;
232 }
233 }
234
235
236 /* comefrom: DoProblems */
237 int
238 AverageTrf(void)
239 {
240 QUAD TrfTotal;
241 register short x, y, count;
242
243 TrfTotal = 0;
244 count = 1;
245 for (x=0; x < HWLDX; x++)
246 for (y=0; y < HWLDY; y++)
247 if (LandValueMem[x][y]) {
248 TrfTotal += TrfDensity[x][y];
249 count++;
250 }
251
252 TrafficAverage = (TrfTotal / count) * 2.4;
253 return(TrafficAverage);
254 }
255
256
257 /* comefrom: DoProblems */
258 int
259 GetUnemployment(void)
260 {
261 float r;
262 short b;
263
264 b = (ComPop + IndPop) << 3;
265 if (b)
266 r = ((float)ResPop) / b;
267 else
268 return(0);
269
270 b = (r - 1) * 255;
271 if (b > 255)
272 b = 255;
273 return (b);
274 }
275
276
277 /* comefrom: DoProblems GetScore */
278 int
279 GetFire(void)
280 {
281 short z;
282
283 z = FirePop * 5;
284 if (z > 255)
285 return(255);
286 else
287 return(z);
288 }
289
290
291 /* comefrom: CityEvaluation */
292 void
293 GetScore(void)
294 {
295 register int x, z;
296 short OldCityScore;
297 float SM, TM;
298
299 OldCityScore = CityScore;
300 x = 0;
301 for (z = 0; z < 7; z++)
302 x += ProblemTable[z]; /* add 7 probs */
303
304 x = x / 3; /* 7 + 2 average */
305 if (x > 256) x = 256;
306
307 z = (256 - x) * 4;
308 if (z > 1000) z = 1000;
309 if (z < 0 ) z = 0;
310
311 if (ResCap) z = z * .85;
312 if (ComCap) z = z * .85;
313 if (IndCap) z = z * .85;
314 if (RoadEffect < 32) z = z - (32 - RoadEffect);
315 if (PoliceEffect < 1000) z = z * (.9 + (PoliceEffect / 10000.1));
316 if (FireEffect < 1000) z = z * (.9 + (FireEffect / 10000.1));
317 if (RValve < -1000) z = z * .85;
318 if (CValve < -1000) z = z * .85;
319 if (IValve < -1000) z = z * .85;
320
321 SM = 1.0;
322 if ((CityPop == 0) || (deltaCityPop == 0))
323 SM = 1.0;
324 else if (deltaCityPop == CityPop)
325 SM = 1.0;
326 else if (deltaCityPop > 0)
327 SM = ((float)deltaCityPop/CityPop) + 1.0;
328 else if (deltaCityPop < 0)
329 SM = .95 + ((float) deltaCityPop/(CityPop - deltaCityPop));
330 z = z * SM;
331 z = z - GetFire(); /* dec score for fires */
332 z = z - (CityTax);
333
334 TM = unPwrdZCnt + PwrdZCnt; /* dec score for unpowered zones */
335 if (TM) SM = PwrdZCnt / TM;
336 else SM = 1.0;
337 z = z * SM;
338
339 if (z > 1000) z = 1000;
340 if (z < 0 ) z = 0;
341
342 CityScore = (CityScore + z) / 2;
343
344 deltaCityScore = CityScore - OldCityScore;
345 }
346
347
348 /* comefrom: CityEvaluation */
349 void
350 DoVotes(void)
351 {
352 register int z;
353
354 CityYes = 0;
355 CityNo = 0;
356 for (z = 0; z < 100; z++) {
357 if (Rand(1000) < CityScore)
358 CityYes++;
359 else
360 CityNo++;
361 }
362 }
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