1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
/* $Id: loop.c,v 1.53 2002/12/25 12:30:42 oohara Exp $ */
#include <stdio.h>
#include "tenm_object.h"
#include "pause.h"
#include "tenm_table.h"
#include "player.h"
#include "score.h"
#include "ship.h"
#include "chain.h"
#include "hit-status.h"
#include "stage.h"
#include "tenm_timer.h"
#include "tenm_input.h"
#include "scheduler.h"
#include "const.h"
#include "tenm_graphic.h"
#include "result.h"
#include "esc-ok.h"
#include "option.h"
#include "loop.h"
/*
static int draw_all_mass(tenm_object *my, int n);
*/
/* returns 1 if the program should quit, 0 if not */
int
main_loop(int tutorial)
{
/* for debugging only */
int t_start = 0;
int i;
int t = 0;
int frame_passed = 0;
int quit_needed = 0;
const option *op = NULL;
tenm_object *player;
op = get_option();
if (op == NULL)
{
fprintf(stderr, "main_loop: get_option failed\n");
/* we should have checked the options */
return 1;
}
clear_pause();
/* we don't need to pause if it is a tutorial */
if (tutorial == 0)
tenm_set_focus_handler((void (*)(int)) pause_by_mouse);
else
tenm_set_focus_handler((void (*)(int)) NULL);
tenm_table_clear_all();
player = player_new(tutorial);
clear_score();
set_ship(5);
clear_chain();
clear_hit_status();
if (tutorial == 0)
{
if ((op->stage >= 1) && (op->stage <= 5))
set_stage(op->stage);
else
set_stage(1);
}
else
{
set_stage(7);
}
tenm_timer_reset();
while (1 == 1)
{
/* quit the program if a SDL_QUIT event happened
* (for example, if a SIGINT signal (sent by Ctrl+c) is received)
*/
if (tenm_event_handle() != 0)
{
quit_needed = 1;
break;
}
/* back to the title if ESC is pressed */
if (tenm_get_key_status() & 32)
{
if (get_esc_ok())
{
set_esc_ok(0);
break;
}
}
else
{
set_esc_ok(1);
}
/* pause if it is a real game and if p is pressed
* we must check "tutorial" first to suppress unnecessary
* pause message
*/
if ((tutorial == 0) && (do_pause(tenm_get_key_status() & 64)))
{
frame_passed++;
/* this wait is necessary to save CPU time */
tenm_wait_next_frame();
continue;
}
for (i = 1; i <= 30; i++)
{
if (tenm_table_detect_collision(player) != 0)
player = NULL;
if (tenm_table_move(player, 30) != 0)
player = NULL;
}
/* scheduler() must be called before tenm_table_do_action()
* to clear action_needed flag correctly */
if (scheduler(t + t_start) == SCHEDULER_NEXT_STAGE)
{
clear_chain();
/* t is incremented at the end of the loop */
t = -1;
/* "stage 6" means ending, "stage 7" means tutorial */
if (get_stage() > 5)
break;
/* you can't go to the next stage if you use --stage option */
if ((op->stage >= 1) && (op->stage <= 5))
break;
add_stage(1);
}
if (tenm_table_do_action(player) != 0)
player = NULL;
calculate_chain();
/* pure white is bad for your eyes */
tenm_clear_window(tenm_map_color(253, 245, 230));
tenm_table_draw(player);
show_chain();
show_hit_status();
show_score();
show_ship();
/* for those who want to see the world as it is */
/* note that
* (1) the player is not in the table
* (2) this is slow
*/
/*
tenm_table_apply_all((int (*)(tenm_object *, int)) draw_all_mass, 0);
*/
tenm_redraw_window();
tenm_wait_next_frame();
if (op->slow != 0)
{
/* wait one more frame */
tenm_wait_next_frame();
}
if (player == NULL)
break;
t++;
frame_passed++;
}
if (frame_passed > 0)
{
printf("average fps: %f\n", tenm_calculate_fps(frame_passed));
fflush(stdout);
}
tenm_table_clear_all();
if (player != NULL)
tenm_object_delete(player);
if ((!(tutorial)) && (!(quit_needed)))
{
/* note that show_result() does not use table */
if (show_result() != 0)
quit_needed = 1;
}
return quit_needed;
}
#if 0
static int
draw_all_mass(tenm_object *my, int n)
{
/* sanity check */
if (my == NULL)
return 0;
if (my->mass == NULL)
return 0;
if (my->attr == 0)
return 0;
if (tenm_draw_mass(my->mass, tenm_map_color(0, 0, 0)) != 0)
{
fprintf(stderr, "draw_all_mass: tenm_draw_mass failed (%d)\n",
my->table_index);
}
return 0;
}
#endif /* 0 */
|
