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Annotation of 43BSD/games/sail/dr_5.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1983 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  */
                      6: 
                      7: #ifndef lint
                      8: static char sccsid[] = "@(#)dr_5.c     5.1 (Berkeley) 5/29/85";
                      9: #endif not lint
                     10: 
                     11: #include "externs.h"
                     12: 
                     13: subtract(from, totalfrom, crewfrom, fromcap, pcfrom)
                     14: struct ship *from, *fromcap;
                     15: int pcfrom;
                     16: register int  totalfrom, crewfrom[3];
                     17: {
                     18:        register int n;
                     19: 
                     20:        if (fromcap == from && totalfrom) {             /* if not captured */
                     21:                for (n = 0; n < 3; n++) {
                     22:                        if (totalfrom > crewfrom[n]) {
                     23:                                totalfrom -= crewfrom[n];
                     24:                                crewfrom[n] = 0;
                     25:                        } else {
                     26:                                crewfrom[n] -= totalfrom;
                     27:                                totalfrom = 0;
                     28:                        }
                     29:                }
                     30:                Write(W_CREW, from, 0, crewfrom[0], crewfrom[1], crewfrom[2], 0);
                     31:        } else if (totalfrom) {
                     32:                pcfrom -= totalfrom;
                     33:                pcfrom = pcfrom < 0 ? 0 : pcfrom;
                     34:                Write(W_PCREW, from, 0, pcfrom, 0, 0, 0);
                     35:        }
                     36: }
                     37: 
                     38: mensent(from, to, crew, captured, pc, isdefense)
                     39: struct ship *from, *to, **captured;
                     40: int crew[3], *pc;
                     41: char isdefense;
                     42: {                                      /* returns # of crew squares sent */
                     43:        int men = 0;
                     44:        register int n;
                     45:        int c1, c2, c3;
                     46:        register struct BP *bp;
                     47: 
                     48:        *pc = from->file->pcrew;
                     49:        *captured = from->file->captured;
                     50:        crew[0] = from->specs->crew1;
                     51:        crew[1] = from->specs->crew2;
                     52:        crew[2] = from->specs->crew3;
                     53:        bp = isdefense ? from->file->DBP : from->file->OBP;
                     54:        for (n=0; n < NBP; n++, bp++) {
                     55:                if (bp->turnsent && bp->toship == to)
                     56:                        men += bp->mensent;
                     57:        }
                     58:        if (men) {
                     59:                c1 = men/100 ? crew[0] : 0;
                     60:                c2 = (men%100)/10 ? crew[1] : 0;
                     61:                c3 = men/10 ? crew[2] : 0;
                     62:                c3 = *captured == 0 ? crew[2] : *pc;
                     63:        } else
                     64:                c1 = c2 = c3 = 0;
                     65:        return(c1 + c2 + c3);
                     66: }

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