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
|
/* board.c - Copyright (C) 2001-2002 Jacob Kroon, see COPYING for details */
#include "video.h"
#include "tuxpuck.h"
/* externals */
extern unsigned char board_jpg[];
/* statics */
static SDL_Surface *_sdl_board;
static Uint8 _state = 0, _turn = 0;
static float _coeff[4];
static Pad *_pad_1, *_pad_2;
static Puck *_puck;
static SDL_Rect _rect = { 0, 0, 0, 0 };
/* functions */
static Uint8 _get_scorer(void)
{
float puck_z;
if (puck_is_dead(_puck))
return 0;
entity_get_position((Entity *) _puck, NULL, &puck_z);
if (puck_z > 40)
return 1;
else if (puck_z < -40)
return 2;
return 0;
}
void board_init(void)
{
_state = BOARD_STATE_NEW_PUCK;
_sdl_board = video_create_jpg_surface(board_jpg, NULL);
_rect.x = SCREEN_W / 2 - _sdl_board->w / 2;
_rect.y = SCREEN_H - _sdl_board->h;
_rect.w = _rect.h = 0;
_pad_1 = pad_create(1);
_pad_2 = pad_create(2);
_puck = puck_create();
_turn = 1;
glass_init();
_coeff[0] = 80 * (BOARD_BOTTOM * BOARD_TOP) / (BOARD_BOTTOM - BOARD_TOP);
_coeff[1] = 40 * (BOARD_BOTTOM + BOARD_TOP) / (BOARD_BOTTOM - BOARD_TOP);
_coeff[2] =
80 * (1.0 * BOARD_LEFT / BOARD_RIGHT) / (1.0 - BOARD_LEFT / BOARD_RIGHT);
_coeff[3] =
40 * (1.0 + BOARD_LEFT / BOARD_RIGHT) / (1.0 - BOARD_LEFT / BOARD_RIGHT);
video_fade(_sdl_board, 1000);
}
void board_deinit(void)
{
SDL_FreeSurface(_sdl_board);
pad_free(_pad_1);
pad_free(_pad_2);
puck_free(_puck);
glass_deinit();
}
Pad *board_get_pad(Uint8 who)
{
if (who == 1)
return _pad_1;
else if (who == 2)
return _pad_2;
else
return NULL;
}
Puck *board_get_puck(void)
{
return _puck;
}
void board_blit(void)
{
video_blit(_sdl_board, NULL, &_rect);
}
Uint8 board_update(Uint32 time)
{
Uint8 scorer;
float puck_x, puck_z;
switch (_state) {
case BOARD_STATE_PLAY:
if (puck_will_get_hit_by(_puck, _pad_1, time))
puck_get_hit_by(_puck, _pad_1, time);
else if (puck_will_get_hit_by(_puck, _pad_2, time))
puck_get_hit_by(_puck, _pad_2, time);
puck_move(_puck, time);
break;
case BOARD_STATE_CRASH_GLASS:
if (glass_update(time) == 0) {
glass_erase();
_state = BOARD_STATE_NEW_PUCK;
if (_turn == 1)
_turn = 2;
else
_turn = 1;
}
break;
case BOARD_STATE_NEW_PUCK:
if (_turn == 1) {
if (entity_move_towards((Entity *) _puck, 0, -21, 0.05, time) == 0) {
_state = BOARD_STATE_PLAY;
entity_set_velocity((Entity *) _puck, 0, 0);
puck_set_state(_puck, PUCK_STATE_ALIVE);
}
} else {
if (entity_move_towards((Entity *) _puck, 0, 21, 0.05, time) == 0) {
_state = BOARD_STATE_PLAY;
entity_set_velocity((Entity *) _puck, 0, 0);
puck_set_state(_puck, PUCK_STATE_ALIVE);
}
}
break;
default:
break;
}
if ((scorer = _get_scorer()) != 0) {
_state = BOARD_STATE_CRASH_GLASS;
entity_get_position((Entity *) _puck, &puck_x, &puck_z);
glass_smash(puck_x, puck_z);
puck_set_state(_puck, PUCK_STATE_DEAD);
}
entity_move(_pad_1, time);
entity_move(_pad_2, time);
return scorer;
}
void board_clean_up(void)
{
entity_erase(_pad_1);
entity_erase(_pad_2);
entity_erase((Entity *) _puck);
if (_state == BOARD_STATE_CRASH_GLASS)
glass_erase();
}
void board_reblit(void)
{
float p1, p2, p, g = 0;
entity_get_position(_pad_1, NULL, &p1);
entity_get_position(_pad_2, NULL, &p2);
entity_get_position((Entity *) _puck, NULL, &p);
if (_state == BOARD_STATE_CRASH_GLASS) {
glass_get_position(NULL, &g);
if (g > 0)
glass_blit();
}
if (p < p1) {
entity_blit(_pad_2);
entity_blit(_pad_1);
entity_blit((Entity *) _puck);
} else if (p < p2) {
entity_blit(_pad_2);
entity_blit((Entity *) _puck);
entity_blit(_pad_1);
} else {
entity_blit((Entity *) _puck);
entity_blit(_pad_2);
entity_blit(_pad_1);
}
if (_state == BOARD_STATE_CRASH_GLASS) {
if (g < 0)
glass_blit();
}
}
Uint8 board_get_state(void)
{
return _state;
}
Uint8 board_get_turn(void)
{
return _turn;
}
float board_calc_y(float y)
{
return (_coeff[0] / (_coeff[1] + y));
}
float board_calc_scale(float y)
{
return _coeff[2] / (_coeff[3] + y);
}
|
