xref: /original-bsd/games/trek/checkcond.c (revision df6dbad5)
1 /*
2  * Copyright (c) 1980 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 this notice is preserved and that due credit is given
7  * to the University of California at Berkeley. The name of the University
8  * may not be used to endorse or promote products derived from this
9  * software without specific prior written permission. This software
10  * is provided ``as is'' without express or implied warranty.
11  */
12 
13 #ifndef lint
14 static char sccsid[] = "@(#)checkcond.c	5.2 (Berkeley) 05/05/88";
15 #endif /* not lint */
16 
17 # include	"trek.h"
18 
19 /*
20 **  Check for Condition After a Move
21 **
22 **	Various ship conditions are checked.  First we check
23 **	to see if we have already lost the game, due to running
24 **	out of life support reserves, running out of energy,
25 **	or running out of crew members.  The check for running
26 **	out of time is in events().
27 **
28 **	If we are in automatic override mode (Etc.nkling < 0), we
29 **	don't want to do anything else, lest we call autover
30 **	recursively.
31 **
32 **	In the normal case, if there is a supernova, we call
33 **	autover() to help us escape.  If after calling autover()
34 **	we are still in the grips of a supernova, we get burnt
35 **	up.
36 **
37 **	If there are no Klingons in this quadrant, we nullify any
38 **	distress calls which might exist.
39 **
40 **	We then set the condition code, based on the energy level
41 **	and battle conditions.
42 */
43 
44 checkcond()
45 {
46 	register int		i, j;
47 
48 	/* see if we are still alive and well */
49 	if (Ship.reserves < 0.0)
50 		lose(L_NOLIFE);
51 	if (Ship.energy <= 0)
52 		lose(L_NOENGY);
53 	if (Ship.crew <= 0)
54 		lose(L_NOCREW);
55 	/* if in auto override mode, ignore the rest */
56 	if (Etc.nkling < 0)
57 		return;
58 	/* call in automatic override if appropriate */
59 	if (Quad[Ship.quadx][Ship.quady].stars < 0)
60 		autover();
61 	if (Quad[Ship.quadx][Ship.quady].stars < 0)
62 		lose(L_SNOVA);
63 	/* nullify distress call if appropriate */
64 	if (Etc.nkling <= 0)
65 		killd(Ship.quadx, Ship.quady, 1);
66 
67 	/* set condition code */
68 	if (Ship.cond == DOCKED)
69 		return;
70 
71 	if (Etc.nkling > 0)
72 	{
73 		Ship.cond = RED;
74 		return;
75 	}
76 	if (Ship.energy < Param.energylow)
77 	{
78 		Ship.cond = YELLOW;
79 		return;
80 	}
81 	Ship.cond = GREEN;
82 	return;
83 }
84