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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
81 /* comefrom: SpecialInit Simulate */
82 CityEvaluation(void)
83 {
84 EvalValid = 0;
85 if (TotalPop) {
86 GetAssValue();
87 DoPopNum();
88 DoProblems();
89 GetScore();
90 DoVotes();
91 ChangeEval();
92 } else {
93 EvalInit();
94 ChangeEval();
95 }
96 EvalValid = 1;
97 }
98
99
100 /* comefrom: CityEvaluation SetCommonInits */
101 EvalInit(void)
102 {
103 register short x, z;
104
105 z = 0;
106 CityYes = z;
107 CityNo = z;
108 CityPop = z;
109 deltaCityPop = z;
110 CityAssValue = z;
111 CityClass = z;
112 CityScore = 500;
113 deltaCityScore = z;
114 EvalValid = 1;
115 for (x = 0; x < PROBNUM; x++)
116 ProblemVotes[x] = z;
117 for (x = 0; x < 4; x++)
118 ProblemOrder[x] = z;
119 }
120
121
122 /* comefrom: CityEvaluation */
123 GetAssValue(void)
124 {
125 QUAD z;
126
127 z = RoadTotal * 5;
128 z += RailTotal * 10;
129 z += PolicePop * 1000;
130 z += FireStPop * 1000;
131 z += HospPop * 400;
132 z += StadiumPop * 3000;
133 z += PortPop * 5000;
134 z += APortPop * 10000;
135 z += CoalPop * 3000;
136 z += NuclearPop * 6000;
137 CityAssValue = z * 1000;
138 }
139
140
141 /* comefrom: CityEvaluation */
142 DoPopNum(void)
143 {
144 QUAD OldCityPop;
145
146 OldCityPop = CityPop;
147 CityPop = ((ResPop) + (ComPop * 8L) + (IndPop *8L)) * 20L;
148 if (OldCityPop == -1) {
149 OldCityPop = CityPop;
150 }
151 deltaCityPop = CityPop - OldCityPop;
152
153 CityClass = 0; /* village */
154 if (CityPop > 2000) CityClass++; /* town */
155 if (CityPop > 10000) CityClass++; /* city */
156 if (CityPop > 50000) CityClass++; /* capital */
157 if (CityPop > 100000) CityClass++; /* metropolis */
158 if (CityPop > 500000) CityClass++; /* megalopolis */
159 }
160
161
162 /* comefrom: CityEvaluation */
163 DoProblems(void)
164 {
165 register short x, z;
166 short ThisProb, Max;
167
168 for (z = 0; z < PROBNUM; z++)
169 ProblemTable[z] = 0;
170 ProblemTable[0] = CrimeAverage; /* Crime */
171 ProblemTable[1] = PolluteAverage; /* Pollution */
172 ProblemTable[2] = LVAverage * .7; /* Housing */
173 ProblemTable[3] = CityTax * 10; /* Taxes */
174 ProblemTable[4] = AverageTrf(); /* Traffic */
175 ProblemTable[5] = GetUnemployment(); /* Unemployment */
176 ProblemTable[6] = GetFire(); /* Fire */
177 VoteProblems();
178 for (z = 0; z < PROBNUM; z++)
179 ProblemTaken[z] = 0;
180 for (z = 0; z < 4; z++) {
181 Max = 0;
182 for (x = 0; x < 7; x++) {
183 if ((ProblemVotes[x] > Max) && (!ProblemTaken[x])) {
184 ThisProb = x;
185 Max = ProblemVotes[x];
186 }
187 }
188 if (Max) {
189 ProblemTaken[ThisProb] = 1;
190 ProblemOrder[z] = ThisProb;
191 }
192 else {
193 ProblemOrder[z] = 7;
194 ProblemTable[7] = 0;
195 }
196 }
197 }
198
199
200 /* comefrom: DoProblems */
201 VoteProblems(void)
202 {
203 register x, z, count;
204
205 for (z = 0; z < PROBNUM; z++)
206 ProblemVotes[z] = 0;
207
208 x = 0;
209 z = 0;
210 count = 0;
211 while ((z < 100) && (count < 600)) {
212 if (Rand(300) < ProblemTable[x]) {
213 ProblemVotes[x]++;
214 z++;
215 }
216 x++;
217 if (x > PROBNUM) x = 0;
218 count++;
219 }
220 }
221
222
223 /* comefrom: DoProblems */
224 AverageTrf(void)
225 {
226 QUAD TrfTotal;
227 register short x, y, count;
228
229 TrfTotal = 0;
230 count = 1;
231 for (x=0; x < HWLDX; x++)
232 for (y=0; y < HWLDY; y++)
233 if (LandValueMem[x][y]) {
234 TrfTotal += TrfDensity[x][y];
235 count++;
236 }
237
238 TrafficAverage = (TrfTotal / count) * 2.4;
239 return(TrafficAverage);
240 }
241
242
243 /* comefrom: DoProblems */
244 GetUnemployment(void)
245 {
246 float r;
247 short b;
248
249 b = (ComPop + IndPop) << 3;
250 if (b)
251 r = ((float)ResPop) / b;
252 else
253 return(0);
254
255 b = (r - 1) * 255;
256 if (b > 255)
257 b = 255;
258 return (b);
259 }
260
261
262 /* comefrom: DoProblems GetScore */
263 GetFire(void)
264 {
265 short z;
266
267 z = FirePop * 5;
268 if (z > 255)
269 return(255);
270 else
271 return(z);
272 }
273
274
275 /* comefrom: CityEvaluation */
276 GetScore(void)
277 {
278 register x, z;
279 short OldCityScore;
280 float SM, TM;
281
282 OldCityScore = CityScore;
283 x = 0;
284 for (z = 0; z < 7; z++)
285 x += ProblemTable[z]; /* add 7 probs */
286
287 x = x / 3; /* 7 + 2 average */
288 if (x > 256) x = 256;
289
290 z = (256 - x) * 4;
291 if (z > 1000) z = 1000;
292 if (z < 0 ) z = 0;
293
294 if (ResCap) z = z * .85;
295 if (ComCap) z = z * .85;
296 if (IndCap) z = z * .85;
297 if (RoadEffect < 32) z = z - (32 - RoadEffect);
298 if (PoliceEffect < 1000) z = z * (.9 + (PoliceEffect / 10000.1));
299 if (FireEffect < 1000) z = z * (.9 + (FireEffect / 10000.1));
300 if (RValve < -1000) z = z * .85;
301 if (CValve < -1000) z = z * .85;
302 if (IValve < -1000) z = z * .85;
303
304 SM = 1.0;
305 if ((CityPop == 0) || (deltaCityPop == 0))
306 SM = 1.0;
307 else if (deltaCityPop == CityPop)
308 SM = 1.0;
309 else if (deltaCityPop > 0)
310 SM = ((float)deltaCityPop/CityPop) + 1.0;
311 else if (deltaCityPop < 0)
312 SM = .95 + ((float) deltaCityPop/(CityPop - deltaCityPop));
313 z = z * SM;
314 z = z - GetFire(); /* dec score for fires */
315 z = z - (CityTax);
316
317 TM = unPwrdZCnt + PwrdZCnt; /* dec score for unpowered zones */
318 if (TM) SM = PwrdZCnt / TM;
319 else SM = 1.0;
320 z = z * SM;
321
322 if (z > 1000) z = 1000;
323 if (z < 0 ) z = 0;
324
325 CityScore = (CityScore + z) / 2;
326
327 deltaCityScore = CityScore - OldCityScore;
328 }
329
330
331 /* comefrom: CityEvaluation */
332 DoVotes(void)
333 {
334 register z;
335
336 CityYes = 0;
337 CityNo = 0;
338 for (z = 0; z < 100; z++) {
339 if (Rand(1000) < CityScore)
340 CityYes++;
341 else
342 CityNo++;
343 }
344 }
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