-
Notifications
You must be signed in to change notification settings - Fork 0
/
tetrominoes.c
216 lines (200 loc) · 6.15 KB
/
tetrominoes.c
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
#include "tetrominoes.h"
#include "game.h"
extern struct c_shape current_cshape;
int move_down() {
struct point tmp_pts[4];
int colission = 0;
int frow, fcol;
for (int p = 0; p < 4; p++) {
frow = current_cshape.points[p].row+1;
fcol = current_cshape.points[p].col;
if ((current_cshape.points[p].row == ROW_GRID-1) ||
(COLLISION_OTHER_SHAPE(frow, fcol, ¤t_cshape)))
colission = 1;
}
if (colission)
return TRUE;
for (int p = 0; p < 4; p++) {
board[current_cshape.points[p].row++][current_cshape.points[p].col] = '\0';
tmp_pts[p] = current_cshape.points[p];
}
for (int p = 0; p < 4; p++)
board[tmp_pts[p].row][tmp_pts[p].col] = current_cshape.ishape.name;
return FALSE;
}
void move_right() {
struct point tmp_pts[4];
int colission = 0;
int frow, fcol;
for (int p = 0; p < 4; p++) {
frow = current_cshape.points[p].row;
fcol = current_cshape.points[p].col+1;
if ((current_cshape.points[p].col == COL_GRID-1) ||
(COLLISION_OTHER_SHAPE(frow, fcol, ¤t_cshape)))
colission = 1;
}
if (!colission) {
for (int p = 0; p < 4; p++) {
board[current_cshape.points[p].row][current_cshape.points[p].col++] = '\0';
tmp_pts[p] = current_cshape.points[p];
}
for (int p = 0; p < 4; p++)
board[tmp_pts[p].row][tmp_pts[p].col] = current_cshape.ishape.name;
}
}
void move_left() {
struct point tmp_pts[4];
int colission = 0;
int frow, fcol;
for (int p = 0; p < 4; p++) {
frow = current_cshape.points[p].row;
fcol = current_cshape.points[p].col-1;
if ((current_cshape.points[p].col == 0) ||
(COLLISION_OTHER_SHAPE(frow, fcol, ¤t_cshape)))
colission = 1;
}
if (!colission) {
for (int p = 0; p < 4; p++) {
board[current_cshape.points[p].row][current_cshape.points[p].col--] = '\0';
tmp_pts[p] = current_cshape.points[p];
}
for (int p = 0; p < 4; p++)
board[tmp_pts[p].row][tmp_pts[p].col] = current_cshape.ishape.name;
}
}
int point_rotate_right(struct point* ptr, struct point* origin_point, int update) {
int abs_row = ptr->row-origin_point->row;
int abs_col = ptr->col-origin_point->col;
int final_abs_row = abs_col;
int final_abs_col = 3-abs_row;
int fcol, frow;
fcol = ptr->col + final_abs_col-abs_col;
frow = ptr->row + final_abs_row-abs_row;
if (frow >= ROW_GRID || frow < 0)
return TRUE;
else if (fcol >= COL_GRID || fcol < 0)
return TRUE;
else if (COLLISION_OTHER_SHAPE(frow, fcol, ¤t_cshape))
return TRUE;
if (update) {
ptr->row = frow;
ptr->col = fcol;
}
return FALSE;
}
int point_rotate_left(struct point* ptr, struct point* origin_point, int update) {
int abs_row = ptr->row-origin_point->row;
int abs_col = ptr->col-origin_point->col;
int final_abs_row = 3-abs_col;
int final_abs_col = abs_row;
int fcol, frow;
fcol = ptr->col + final_abs_col-abs_col;
frow = ptr->row + final_abs_row-abs_row;
if (frow >= ROW_GRID || frow < 0)
return TRUE;
else if (fcol >= COL_GRID || fcol < 0)
return TRUE;
else if (COLLISION_OTHER_SHAPE(frow, fcol, ¤t_cshape))
return TRUE;
if (update) {
ptr->row = frow;
ptr->col = fcol;
}
return FALSE;
}
int shape_rotate_right() {
struct point tmp_pts[4];
struct point origin_point = get_origin_point(¤t_cshape);
int colission = 0;
for (int p = 0; p < 4; p++)
colission |= point_rotate_right(¤t_cshape.points[p], &origin_point, FALSE);
if (colission) return TRUE;
for (int p = 0; p < 4; p++) {
board[current_cshape.points[p].row][current_cshape.points[p].col] = '\0';
point_rotate_right(¤t_cshape.points[p], &origin_point, TRUE);
tmp_pts[p] = current_cshape.points[p];
}
for (int p = 0; p < 4; p++)
board[tmp_pts[p].row][tmp_pts[p].col] = current_cshape.ishape.name;
current_cshape.direction++;
return FALSE;
}
int shape_rotate_left() {
struct point tmp_pts[4];
struct point origin_point = get_origin_point(¤t_cshape);
int colission = 0;
for (int p = 0; p < 4; p++)
colission |= point_rotate_right(¤t_cshape.points[p], &origin_point, FALSE);
if (colission)
return TRUE;
for (int p = 0; p < 4; p++) {
board[current_cshape.points[p].row][current_cshape.points[p].col] = '\0';
point_rotate_left(¤t_cshape.points[p], &origin_point, TRUE);
tmp_pts[p] = current_cshape.points[p];
}
for (int p = 0; p < 4; p++)
board[tmp_pts[p].row][tmp_pts[p].col] = current_cshape.ishape.name;
current_cshape.direction += 3;
return FALSE;
}
struct point get_origin_point(struct c_shape* ic_shape) {
int cnt, sum, shape_index, idx, rmin = COL_GRID*ROW_GRID+1, cmin = COL_GRID*ROW_GRID+1;
int abs_direction;
struct point origin_point;
int topest_points[4] = {0, 0, 0, 0};
for (int i = 0, cnt = 0; i < 4; i++)
rmin = ic_shape->points[i].row < rmin ? ic_shape->points[i].row : rmin;
for (int i = 0, cnt = 0; i < 4; i++)
topest_points[i] = ic_shape->points[i].row == rmin ? 1 : 0;
for (int i = 0, cnt = 0; i < 4; i++) {
if (topest_points[i] == 1 && ic_shape->points[i].col < cmin) {
cmin = ic_shape->points[i].col;
idx = i;
}
}
origin_point = ic_shape->points[idx];
abs_direction = ic_shape->direction%4;
shape_index = SHAPE_INDEX(ic_shape->ishape.name);
origin_point.row += ORIGIN_RULES[shape_index][abs_direction][0];
origin_point.col += ORIGIN_RULES[shape_index][abs_direction][1];
return origin_point;
}
int is_point_shape(int row, int col, struct c_shape* ic_shape) {
for (int i = 0; i < 4; i++) {
if (row == ic_shape->points[i].row &&
col == ic_shape->points[i].col)
return TRUE;
}
return FALSE;
}
void drop_shape() {
struct point tmp_pts[4];
int frow, fcol;
int rmin = 0;
int drop = ROW_GRID;
int r;
for (int i = 0; i < 4; i++) {
if (current_cshape.points[i].row > rmin)
rmin = current_cshape.points[i].row;
}
for (int i = 0; i < 4; i++) {
r = 0;
while (1) {
frow = r+current_cshape.points[i].row;
fcol = current_cshape.points[i].col;
if (frow >= ROW_GRID)
break;
if (COLLISION_OTHER_SHAPE(frow, fcol, ¤t_cshape))
break;
r++;
}
drop = r < drop ? r : drop;
}
for (int p = 0; p < 4; p++) {
board[current_cshape.points[p].row][current_cshape.points[p].col] = '\0';
current_cshape.points[p].row += drop-1;
tmp_pts[p] = current_cshape.points[p];
}
for (int p = 0; p < 4; p++)
board[tmp_pts[p].row][tmp_pts[p].col] = current_cshape.ishape.name;
}