Annotation of 43BSDTahoe/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.
                      4:  *
                      5:  * Redistribution and use in source and binary forms are permitted
                      6:  * provided that the above copyright notice and this paragraph are
                      7:  * duplicated in all such forms and that any documentation,
                      8:  * advertising materials, and other materials related to such
                      9:  * distribution and use acknowledge that the software was developed
                     10:  * by the University of California, Berkeley.  The name of the
                     11:  * University may not be used to endorse or promote products derived
                     12:  * from this software without specific prior written permission.
                     13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     16:  */
                     17: 
                     18: #ifndef lint
                     19: static char sccsid[] = "@(#)dr_5.c     5.3 (Berkeley) 6/18/88";
                     20: #endif /* not lint */
                     21: 
                     22: #include "externs.h"
                     23: 
                     24: subtract(from, totalfrom, crewfrom, fromcap, pcfrom)
                     25: struct ship *from, *fromcap;
                     26: int pcfrom;
                     27: register int  totalfrom, crewfrom[3];
                     28: {
                     29:        register int n;
                     30: 
                     31:        if (fromcap == from && totalfrom) {             /* if not captured */
                     32:                for (n = 0; n < 3; n++) {
                     33:                        if (totalfrom > crewfrom[n]) {
                     34:                                totalfrom -= crewfrom[n];
                     35:                                crewfrom[n] = 0;
                     36:                        } else {
                     37:                                crewfrom[n] -= totalfrom;
                     38:                                totalfrom = 0;
                     39:                        }
                     40:                }
                     41:                Write(W_CREW, from, 0, crewfrom[0], crewfrom[1], crewfrom[2], 0);
                     42:        } else if (totalfrom) {
                     43:                pcfrom -= totalfrom;
                     44:                pcfrom = pcfrom < 0 ? 0 : pcfrom;
                     45:                Write(W_PCREW, from, 0, pcfrom, 0, 0, 0);
                     46:        }
                     47: }
                     48: 
                     49: mensent(from, to, crew, captured, pc, isdefense)
                     50: struct ship *from, *to, **captured;
                     51: int crew[3], *pc;
                     52: char isdefense;
                     53: {                                      /* returns # of crew squares sent */
                     54:        int men = 0;
                     55:        register int n;
                     56:        int c1, c2, c3;
                     57:        register struct BP *bp;
                     58: 
                     59:        *pc = from->file->pcrew;
                     60:        *captured = from->file->captured;
                     61:        crew[0] = from->specs->crew1;
                     62:        crew[1] = from->specs->crew2;
                     63:        crew[2] = from->specs->crew3;
                     64:        bp = isdefense ? from->file->DBP : from->file->OBP;
                     65:        for (n=0; n < NBP; n++, bp++) {
                     66:                if (bp->turnsent && bp->toship == to)
                     67:                        men += bp->mensent;
                     68:        }
                     69:        if (men) {
                     70:                c1 = men/100 ? crew[0] : 0;
                     71:                c2 = (men%100)/10 ? crew[1] : 0;
                     72:                c3 = men/10 ? crew[2] : 0;
                     73:                c3 = *captured == 0 ? crew[2] : *pc;
                     74:        } else
                     75:                c1 = c2 = c3 = 0;
                     76:        return(c1 + c2 + c3);
                     77: }

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