/* * Empire - A multi-player, client/server Internet based war game. * Copyright (C) 1986-2008, Dave Pare, Jeff Bailey, Thomas Ruschak, * Ken Stevens, Steve McClure * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * --- * * See files README, COPYING and CREDITS in the root of the source * tree for related information and legal notices. It is expected * that future projects/authors will amend these files as needed. * * --- * * nat.c: Accumulate tech, edu, research and happiness. * * Known contributors to this file: * Dave Pare, 1989 * Steve McClure, 1997 */ #include #include #include "budg.h" #include "game.h" #include "item.h" #include "update.h" /* * hap and edu avg mean that the weight on current happiness is * (cur_hap * hap_avg + hap_prod * etu) / (hap_avg + etu); * same for education. * right now, happiness has 1 day (48 etu) average, prod of 10 from * initial level of 0 yields (1) 1.42, (6) 6.03, (12) 8.42, (18) 9.37 * * education has 4 day (192 etu) average, prod of 10 from initial * level of 0 yields (1) 0.4, (6) 2.2, (12) 3.9, (18) 5.2. */ static void share_incr(double *, double *); /* * for values below the "easy level" values, production is * as normal. For values above "easy", production gets harder * based on an equation in "limit_level()" in update/nat.c. * Basically, the smaller the the values for "level_log", the * smaller return on investment above level_easy[] values. */ /* * Damn! I hate this, but ... * The values here for tech are *not* the real ones. * They are changed later in the limit_level routine. */ /*tech res edu hap */ static float level_easy[4] = { 0.75, 0.75, 5.00, 5.00 }; static float level_log[4] = { 1.75, 2.00, 4.00, 6.00 }; float levels[MAXNOC][4]; /* * technique to limit the sharpers who turn entire countries * into tech plants overnight... */ static double logx(double d, double base) { if (base == 1.0) return d; return log10(d) / log10(base); } static double limit_level(double level, int type, int flag) { double above_easy; double above; double logbase; double easy; /* * Begin ugly hack. */ level_easy[0] = easy_tech; level_log[0] = tech_log_base; /* * End ugly hack. */ if (level > level_easy[type]) { logbase = level_log[type]; easy = level_easy[type]; above_easy = level - easy; if (flag) above = above_easy / logx(logbase + above_easy, logbase); else above = logx(above_easy + 1.0, logbase); if (above > 250) above = 250; return above < 0 ? easy : easy + above; } else return level; } void prod_nat(int etu) { struct natstr *np; float hap; float edu; float hap_edu; long pop; double rlev; double tlev; double tech[MAXNOC]; double res[MAXNOC]; double newvalue; natid n; int cn; struct natstr *cnp; for (n = 0; NULL != (np = getnatp(n)); n++) { grant_btus(np, game_reset_tick(&np->nat_access)); if (np->nat_stat < STAT_ACTIVE) continue; /* * hap_edu: the more education people have, the * more happiness they want. */ hap_edu = np->nat_level[NAT_ELEV]; hap_edu = 1.5 - ((hap_edu + 10.0) / (hap_edu + 20.0)); pop = pops[n] + 1; /* * get per-population happiness and education * see what the total per-civilian production is * for this time period. */ hap = levels[n][NAT_HLEV] * hap_edu * hap_cons / ((float)pop * etu); edu = levels[n][NAT_ELEV] * edu_cons / ((float)pop * etu); wu((natid)0, n, "%3.0f happiness, %3.0f education produced\n", levels[n][NAT_HLEV], levels[n][NAT_ELEV]); hap = limit_level(hap, NAT_HLEV, 1); edu = limit_level(edu, NAT_ELEV, 1); /* * change the "moving average"...old happiness and * education levels are weighted heavier than current * production. */ newvalue = (np->nat_level[NAT_HLEV] * hap_avg + hap * etu) / (hap_avg + etu); np->nat_level[NAT_HLEV] = newvalue; newvalue = (np->nat_level[NAT_ELEV] * edu_avg + edu * etu) / (edu_avg + etu); np->nat_level[NAT_ELEV] = newvalue; /* * limit tech/research production */ levels[n][NAT_TLEV] = limit_level(levels[n][NAT_TLEV] / 1, NAT_TLEV, 0) * 1; levels[n][NAT_RLEV] = limit_level(levels[n][NAT_RLEV] / 1, NAT_RLEV, 0) * 1; wu((natid)0, n, "total pop was %ld, yielding %4.2f hap, %4.2f edu\n", pop - 1, hap, edu); } if (ally_factor > 0.0) share_incr(res, tech); else { memset(res, 0, sizeof(res)); memset(tech, 0, sizeof(tech)); } for (n = 0; NULL != (np = getnatp(n)); n++) { if (np->nat_stat < STAT_ACTIVE) continue; tlev = levels[n][NAT_TLEV]; rlev = levels[n][NAT_RLEV]; if (tech[n] != 0.0 || res[n] != 0.0) { wu((natid)0, n, "%5.4f technology (%5.4f + %5.4f), ", tlev + tech[n], tlev, tech[n]); wu((natid)0, n, "%5.4f research (%5.4f + %5.4f) produced\n", rlev + res[n], rlev, res[n]); } else wu((natid)0, n, "%5.4f tech, %5.4f research produced\n", tlev, rlev); rlev += res[n]; tlev += tech[n]; if (rlev != 0.0) np->nat_level[NAT_RLEV] += rlev; if (tlev != 0.0) np->nat_level[NAT_TLEV] += tlev; if ((sea_money[n] != 0) || (air_money[n] != 0) || (lnd_money[n] != 0)) wu((natid)0, n, "Army delta $%ld, Navy delta $%ld, Air force delta $%ld\n", lnd_money[n], sea_money[n], air_money[n]); wu((natid)0, n, "money delta was $%ld for this update\n", np->nat_money - money[n]); if (opt_LOSE_CONTACT) { for (cn = 1; cn < MAXNOC; cn++) { if ((cnp = getnatp(cn)) != NULL) agecontact(cnp); } } } } /* * find out everyones increment */ static void share_incr(double *res, double *tech) { struct natstr *np; struct natstr *other; natid i; natid j; int rnc; int tnc; for (i = 0; NULL != (np = getnatp(i)); i++) { res[i] = tech[i] = 0.0; if (np->nat_stat < STAT_SANCT || np->nat_stat == STAT_GOD) continue; rnc = tnc = 0; for (j = 0; NULL != (other = getnatp(j)); j++) { if (j == i) continue; if (other->nat_stat != STAT_ACTIVE) continue; if (opt_HIDDEN) { if (!getcontact(np, j)) continue; } if (!opt_ALL_BLEED) { if (getrel(np, j) != ALLIED) continue; if (getrel(other, i) != ALLIED) continue; res[i] += levels[j][NAT_RLEV]; tech[i] += levels[j][NAT_TLEV]; rnc++; tnc++; } else { if (levels[j][NAT_TLEV] > 0.001) { tech[i] += levels[j][NAT_TLEV]; tnc++; } if (levels[j][NAT_RLEV] > 0.001) { res[i] += levels[j][NAT_RLEV]; rnc++; } } } if (rnc > 0) { res[i] /= rnc * ally_factor; } if (tnc > 0) { tech[i] /= tnc * ally_factor; } /* logerror("Country #%d gets %g res from %d allies, %g tech from %d allies", i, res[i], rnc, tech[i], tnc);*/ } }