tsiry-sandratraina.com
A modern Music Player Daemon based on Rockbox open source high quality audio player
libadwaita
audio
rust
zig
deno
mpris
rockbox
mpd
1/*
2 * xrick/maps.c
3 *
4 * Copyright (C) 1998-2002 BigOrno (bigorno@bigorno.net).
5 * Copyright (C) 2008-2014 Pierluigi Vicinanza.
6 * All rights reserved.
7 *
8 * The use and distribution terms for this software are contained in the file
9 * named README, which can be found in the root of this distribution. By
10 * using this software in any fashion, you are agreeing to be bound by the
11 * terms of this license.
12 *
13 * You must not remove this notice, or any other, from this software.
14 */
15
16/*
17 * NOTES
18 *
19 * A map is composed of submaps, which in turn are composed of rows of
20 * 0x20 tiles. map_map contains the tiles for the current portion of the
21 * current submap, i.e. a little bit more than what appear on the screen,
22 * but not the whole submap.
23 *
24 * map_frow is map_map top row within the submap.
25 *
26 * Submaps are stored as arrays of blocks, each block being a 4x4 tile
27 * array. map_submaps[].bnum points to the first block of the array.
28 *
29 * Before a submap can be played, it needs to be expanded from blocks
30 * to map_map.
31 */
32
33#include "xrick/maps.h"
34
35#include "xrick/game.h"
36#include "xrick/debug.h"
37#include "xrick/control.h"
38#include "xrick/ents.h"
39#include "xrick/draw.h"
40#include "xrick/screens.h"
41#include "xrick/e_sbonus.h"
42
43/*
44 * global vars
45 */
46U8 map_map[0x2C][0x20];
47
48size_t map_nbr_maps = 0;
49map_t *map_maps = NULL;
50
51size_t map_nbr_submaps = 0;
52submap_t *map_submaps = NULL;
53
54size_t map_nbr_connect = 0;
55connect_t *map_connect = NULL;
56
57size_t map_nbr_blocks = 0;
58block_t *map_blocks = NULL;
59
60size_t map_nbr_marks = 0;
61mark_t *map_marks = NULL;
62
63size_t map_nbr_bnums = 0;
64U8 *map_bnums = NULL;
65
66size_t map_nbr_eflgc = 0;
67U8 *map_eflg_c = NULL;
68U8 map_eflg[0x100];
69
70U8 map_frow;
71U8 map_tilesBank;
72
73
74/*
75 * prototypes
76 */
77static void map_eflg_expand(U8);
78
79
80/*
81 * Fill in map_map with tile numbers by expanding blocks.
82 *
83 * add map_submaps[].bnum to map_frow to find out where to start from.
84 * We need to /4 map_frow to convert from tile rows to block rows, then
85 * we need to *8 to convert from block rows to block numbers (there
86 * are 8 blocks per block row). This is achieved by *2 then &0xfff8.
87 */
88void
89map_expand(void)
90{
91 U8 i, j, k, l;
92 U8 row, col;
93 U16 pbnum;
94
95 pbnum = map_submaps[game_submap].bnum + ((2 * map_frow) & 0xfff8);
96 row = col = 0;
97
98 for (i = 0; i < 0x0b; i++) { /* 0x0b rows of blocks */
99 for (j = 0; j < 0x08; j++) { /* 0x08 blocks per row */
100 for (k = 0, l = 0; k < 0x04; k++) { /* expand one block */
101 map_map[row][col++] = map_blocks[map_bnums[pbnum]][l++];
102 map_map[row][col++] = map_blocks[map_bnums[pbnum]][l++];
103 map_map[row][col++] = map_blocks[map_bnums[pbnum]][l++];
104 map_map[row][col] = map_blocks[map_bnums[pbnum]][l++];
105 row += 1; col -= 3;
106 }
107 row -= 4; col += 4;
108 pbnum++;
109 }
110 row += 4; col = 0;
111 }
112}
113
114
115/*
116 * Initialize a new submap
117 *
118 * ASM 0cc3
119 */
120void
121map_init(void)
122{
123 /*sys_printf("xrick/map_init: map=%#04x submap=%#04x\n", g_map, game_submap);*/
124#ifdef GFXPC
125 draw_filter = 0xffff;
126 map_tilesBank = 2 + map_submaps[game_submap].page;
127#endif
128#ifdef GFXST
129 map_tilesBank = 1 + map_submaps[game_submap].page;
130#endif
131 map_eflg_expand(map_submaps[game_submap].page << 4);
132 map_expand();
133 ent_reset();
134 ent_actvis(map_frow + MAP_ROW_SCRTOP, map_frow + MAP_ROW_SCRBOT);
135 ent_actvis(map_frow + MAP_ROW_HTTOP, map_frow + MAP_ROW_HTBOT);
136 ent_actvis(map_frow + MAP_ROW_HBTOP, map_frow + MAP_ROW_HBBOT);
137}
138
139
140/*
141 * Expand entity flags for this map
142 *
143 * ASM 1117
144 */
145void
146map_eflg_expand(U8 offs)
147{
148 U8 i, j, k;
149
150 for (i = 0, k = 0; i < 0x10; i++) {
151 j = map_eflg_c[offs + i++];
152 while (j--) map_eflg[k++] = map_eflg_c[offs + i];
153 }
154}
155
156
157/*
158 * Chain (sub)maps
159 *
160 * ASM 0c08
161 * return: true/next submap OK, false/map finished
162 */
163bool
164map_chain(void)
165{
166 U16 c, t;
167
168 game_chsm = false;
169 e_sbonus_counting = false;
170
171 /* find connection */
172 c = map_submaps[game_submap].connect;
173 t = 3;
174
175 IFDEBUG_MAPS(
176 sys_printf("xrick/maps: chain submap=%#04x frow=%#04x .connect=%#04x %s\n",
177 game_submap, map_frow, c,
178 (game_dir == LEFT ? "-> left" : "-> right"));
179 );
180
181 /*
182 * look for the first connector with compatible row number. if none
183 * found, then panic
184 */
185 for (c = map_submaps[game_submap].connect ; ; c++)
186 {
187 if (map_connect[c].dir == 0xff)
188 {
189 sys_error("(map_chain) can not find connector\n");
190 control_set(Control_EXIT);
191 return false;
192 }
193 if (map_connect[c].dir != game_dir)
194 {
195 continue;
196 }
197 t = (ent_ents[1].y >> 3) + map_frow - map_connect[c].rowout;
198 if (t < 3)
199 {
200 break;
201 }
202 }
203
204 /* got it */
205 IFDEBUG_MAPS(
206 sys_printf("xrick/maps: chain frow=%#04x y=%#06x\n",
207 map_frow, ent_ents[1].y);
208 sys_printf("xrick/maps: chain connect=%#04x rowout=%#04x - ",
209 c, map_connect[c].rowout);
210 );
211
212 if (map_connect[c].submap == 0xff)
213 {
214 /* no next submap - request next map */
215 IFDEBUG_MAPS(
216 sys_printf("chain to next map\n");
217 );
218 return false;
219 }
220 else
221 {
222 /* next submap */
223 IFDEBUG_MAPS(
224 sys_printf("chain to submap=%#04x rowin=%#04x\n",
225 map_connect[c].submap, map_connect[c].rowin);
226 );
227 map_frow = map_frow - map_connect[c].rowout + map_connect[c].rowin;
228 game_submap = map_connect[c].submap;
229 IFDEBUG_MAPS(
230 sys_printf("xrick/maps: chain frow=%#04x\n",
231 map_frow);
232 );
233 return true;
234 }
235}
236
237
238/*
239 * Reset all marks, i.e. make them all active again.
240 *
241 * ASM 0025
242 *
243 */
244void
245map_resetMarks(void)
246{
247 U16 i;
248 for (i = 0; i < map_nbr_marks; i++)
249 map_marks[i].ent &= ~MAP_MARK_NACT;
250}
251
252
253/* eof */