source: buchla-68k/ram/select.c@ de91266

Last change on this file since de91266 was fa38804, checked in by Thomas Lopatic <thomas@…>, 7 years ago

Removed form-feed comments.
  • Property mode set to 100644
File size: 2.0 KB
Line 
1/*
2 =============================================================================
3 select.c -- field selection processing
4 Version 9 -- 1988-12-13 -- D.N. Lynx Crowe
5 =============================================================================
6*/
7
8#define DEBUGIT 0
9
10#include "ram.h"
11
12#if DEBUGIT
13short debugsf = 1;;
14#endif
15
16/*
17 =============================================================================
18 whatbox() -- determine which selection box a hit occured in
19 =============================================================================
20*/
21
22int16_t whatbox(void)
23{
24 register struct selbox *sb;
25
26 sb = csbp;
27 hitbox = -1;
28
29#if DEBUGIT
30 if (debugsw AND debugsf)
31 printf("whatbox(): ENTRY cxval=%d cyval=%d cursbox=%d csbp=$%lX\n",
32 cxval, cyval, cursbox, csbp);
33#endif
34
35 if (0L EQ sb)
36 return(FALSE);
37
38 while (sb->boxhit) {
39
40 hitbox++;
41
42 if ((cxval GE sb->sbxmin) AND
43 (cxval LE sb->sbxmax) AND
44 (cyval GE sb->sbymin) AND
45 (cyval LE sb->sbymax)) {
46
47 hitcx = cxval;
48 hitcy = cyval;
49 curboxp = sb;
50
51#if DEBUGIT
52 if (debugsw AND debugsf)
53 printf("whatbox(): HIT hitbox=%d, curboxp=$%lX, sbarg=$%04.4X\n",
54 hitbox, curboxp, sb->sbarg);
55#endif
56
57 return(TRUE);
58 }
59
60 sb++;
61 }
62
63#if DEBUGIT
64 if (debugsw AND debugsf)
65 printf("whatbox(): FAILED\n");
66#endif
67
68 hitbox = -1;
69 return(FALSE);
70}
71
72/*
73 =============================================================================
74 select() -- standard item selection processing
75 =============================================================================
76*/
77
78void select(void)
79{
80 if (astat) { /* only when the E key goes down */
81
82#if DEBUGIT
83 if (debugsw AND debugsf)
84 printf("select(): ENTRY\n");
85#endif
86
87 if (whatbox()) { /* see if we're in a box */
88
89#if DEBUGIT
90 if (debugsw AND debugsf)
91 printf("select(): HIT hitbox = %d curboxp $%lX\n",
92 hitbox, curboxp);
93#endif
94
95 (*curboxp->boxhit)(curboxp->sbarg); /* process it */
96 cursbox = hitbox;
97
98 } else {
99
100#if DEBUGIT
101 if (debugsw AND debugsf)
102 printf("select(): FAILED\n");
103#endif
104
105 }
106 }
107}
108
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