tetoris_c

public

Small block game in C

Star0

Watch0

12 commits 1 branch 2 tags 0 releases791.9 KiB

#include "main.h"

void init_field() {
  uint8_t i, j;
  for(i = 0; i < FULL_HEIGHT; i++) {
    for (j = 0; j < FULL_WIDTH; j++) {
      
      if (
        j < BORDER_WIDTH || 
        j >= FULL_WIDTH - BORDER_WIDTH ||
        i >= FULL_HEIGHT - BORDER_WIDTH
      ) {
        playfield[i][j] = TETRIS; 
      } else {
        playfield[i][j] = EMPTY;
      }
    }
  }
}


piece init_piece(tetromino new_piece) {
  
  piece current_piece = {};

  current_piece.name = new_piece;

  current_piece.y = TOP_GAP;
  current_piece.rotation = TOP;


  switch (current_piece.name) {
    case I_PIECE:
      current_piece.size = 4;
      current_piece.positions = 2;

      current_piece.piece[0][0] = false;
      current_piece.piece[0][1] = false;
      current_piece.piece[0][2] = false;
      current_piece.piece[0][3] = false;

      current_piece.piece[1][0] = true;
      current_piece.piece[1][1] = true;
      current_piece.piece[1][2] = true;
      current_piece.piece[1][3] = true;
      
      current_piece.piece[2][0] = false;
      current_piece.piece[2][1] = false;
      current_piece.piece[2][2] = false;
      current_piece.piece[2][3] = false;
      
      current_piece.piece[3][0] = false;
      current_piece.piece[3][1] = false;
      current_piece.piece[3][2] = false;
      current_piece.piece[3][3] = false;
      
      current_piece.y = 0;

      break;

    case J_PIECE:
      current_piece.size = 3;
      current_piece.positions = 4;
  
      current_piece.piece[0][0] = true;
      current_piece.piece[0][1] = false;
      current_piece.piece[0][2] = false;
      
      current_piece.piece[1][0] = true;
      current_piece.piece[1][1] = true;
      current_piece.piece[1][2] = true;

      current_piece.piece[2][0] = false;
      current_piece.piece[2][1] = false;
      current_piece.piece[2][2] = false;

      break;

    case L_PIECE:
      current_piece.size = 3;
      current_piece.positions = 4;
  
      current_piece.piece[0][0] = false;
      current_piece.piece[0][1] = false;
      current_piece.piece[0][2] = true;
      
      current_piece.piece[1][0] = true;
      current_piece.piece[1][1] = true;
      current_piece.piece[1][2] = true;

      current_piece.piece[2][0] = false;
      current_piece.piece[2][1] = false;
      current_piece.piece[2][2] = false;

      break;

    case O_PIECE:
      current_piece.size = 4;
      current_piece.positions = 1;
  
      current_piece.piece[0][0] = false;
      current_piece.piece[0][1] = false;
      current_piece.piece[0][2] = false;
      current_piece.piece[0][3] = false;
    
      current_piece.piece[1][0] = false;
      current_piece.piece[1][1] = true;
      current_piece.piece[1][2] = true;
      current_piece.piece[1][3] = false; 
  
      current_piece.piece[2][0] = false;
      current_piece.piece[2][1] = true;
      current_piece.piece[2][2] = true;
      current_piece.piece[2][3] = false; 
      
      current_piece.piece[3][0] = false;
      current_piece.piece[3][1] = false;
      current_piece.piece[3][2] = false;
      current_piece.piece[3][3] = false;
      
      break;

    case S_PIECE:
      current_piece.size = 3;
      current_piece.positions = 2;
  
      current_piece.piece[0][0] = false;
      current_piece.piece[0][1] = true;
      current_piece.piece[0][2] = true;

      current_piece.piece[1][0] = true;
      current_piece.piece[1][1] = true;
      current_piece.piece[1][2] = false;
 
      current_piece.piece[2][0] = false;
      current_piece.piece[2][1] = false;
      current_piece.piece[2][2] = false;

      break;

    case T_PIECE:
      current_piece.size = 3;
      current_piece.positions = 4;
  
      current_piece.piece[0][0] = false;
      current_piece.piece[0][1] = true;
      current_piece.piece[0][2] = false;
      
      current_piece.piece[1][0] = true;
      current_piece.piece[1][1] = true;
      current_piece.piece[1][2] = true;
      
      current_piece.piece[2][0] = false;
      current_piece.piece[2][1] = false;
      current_piece.piece[2][2] = false;

      break;
    case Z_PIECE:
      current_piece.size = 3;
      current_piece.positions = 2;
  
      current_piece.piece[0][0] = true;
      current_piece.piece[0][1] = true;
      current_piece.piece[0][2] = false;

      current_piece.piece[1][0] = false;
      current_piece.piece[1][1] = true;
      current_piece.piece[1][2] = true;

      current_piece.piece[2][0] = false;
      current_piece.piece[2][1] = false;
      current_piece.piece[2][2] = false;

      break;
    default:
      perror("Fuck you\n");
      break;
  }

  current_piece.x = ((FULL_WIDTH >> 1) - (current_piece.size >> 1));

  return current_piece;
}



coord find_direction(piece current_piece, uint8_t x, uint8_t y) {

  coord points = {
    x,
    y
  };

  switch (current_piece.rotation) {
    case TOP:
      /*
      x = k;
      y = j;
      */
      break;
    case RIGHT:
      points.x = y;
      points.y = current_piece.size - (x + 1);
      break;
    case BOTTOM:
      points.x = current_piece.size - (x + 1);
      points.y = current_piece.size - (y + 1);
      break;
    case LEFT:
      points.x = current_piece.size - (y + 1);
      points.y = x;
      break;
  }

  return points;
}


bool valid_position(piece current_piece) {

  uint8_t i, j;

  for(i = 0; i < current_piece.size; i++) {
    for (j = 0; j < current_piece.size; j++) {

      coord points = find_direction(current_piece, j, i);

      if (
        current_piece.piece[i][j] &&
        playfield[current_piece.y + points.y][current_piece.x + points.x] != EMPTY
      ) {
        return false;
      }
    }
  }

  return true;
}

1	#include "main.h"
2
3	void init_field() {
4	uint8_t i, j;
5	for(i = 0; i < FULL_HEIGHT; i++) {
6	for (j = 0; j < FULL_WIDTH; j++) {
7
8	if (
9	j < BORDER_WIDTH \|\|
10	j >= FULL_WIDTH - BORDER_WIDTH \|\|
11	i >= FULL_HEIGHT - BORDER_WIDTH
12	) {
13	playfield[i][j] = TETRIS;
14	} else {
15	playfield[i][j] = EMPTY;
16	}
17	}
18	}
19	}
20
21
22	piece init_piece(tetromino new_piece) {
23
24	piece current_piece = {};
25
26	current_piece.name = new_piece;
27
28	current_piece.y = TOP_GAP;
29	current_piece.rotation = TOP;
30
31
32	switch (current_piece.name) {
33	case I_PIECE:
34	current_piece.size = 4;
35	current_piece.positions = 2;
36
37	current_piece.piece[0][0] = false;
38	current_piece.piece[0][1] = false;
39	current_piece.piece[0][2] = false;
40	current_piece.piece[0][3] = false;
41
42	current_piece.piece[1][0] = true;
43	current_piece.piece[1][1] = true;
44	current_piece.piece[1][2] = true;
45	current_piece.piece[1][3] = true;
46
47	current_piece.piece[2][0] = false;
48	current_piece.piece[2][1] = false;
49	current_piece.piece[2][2] = false;
50	current_piece.piece[2][3] = false;
51
52	current_piece.piece[3][0] = false;
53	current_piece.piece[3][1] = false;
54	current_piece.piece[3][2] = false;
55	current_piece.piece[3][3] = false;
56
57	current_piece.y = 0;
58
59	break;
60
61	case J_PIECE:
62	current_piece.size = 3;
63	current_piece.positions = 4;
64
65	current_piece.piece[0][0] = true;
66	current_piece.piece[0][1] = false;
67	current_piece.piece[0][2] = false;
68
69	current_piece.piece[1][0] = true;
70	current_piece.piece[1][1] = true;
71	current_piece.piece[1][2] = true;
72
73	current_piece.piece[2][0] = false;
74	current_piece.piece[2][1] = false;
75	current_piece.piece[2][2] = false;
76
77	break;
78
79	case L_PIECE:
80	current_piece.size = 3;
81	current_piece.positions = 4;
82
83	current_piece.piece[0][0] = false;
84	current_piece.piece[0][1] = false;
85	current_piece.piece[0][2] = true;
86
87	current_piece.piece[1][0] = true;
88	current_piece.piece[1][1] = true;
89	current_piece.piece[1][2] = true;
90
91	current_piece.piece[2][0] = false;
92	current_piece.piece[2][1] = false;
93	current_piece.piece[2][2] = false;
94
95	break;
96
97	case O_PIECE:
98	current_piece.size = 4;
99	current_piece.positions = 1;
100
101	current_piece.piece[0][0] = false;
102	current_piece.piece[0][1] = false;
103	current_piece.piece[0][2] = false;
104	current_piece.piece[0][3] = false;
105
106	current_piece.piece[1][0] = false;
107	current_piece.piece[1][1] = true;
108	current_piece.piece[1][2] = true;
109	current_piece.piece[1][3] = false;
110
111	current_piece.piece[2][0] = false;
112	current_piece.piece[2][1] = true;
113	current_piece.piece[2][2] = true;
114	current_piece.piece[2][3] = false;
115
116	current_piece.piece[3][0] = false;
117	current_piece.piece[3][1] = false;
118	current_piece.piece[3][2] = false;
119	current_piece.piece[3][3] = false;
120
121	break;
122
123	case S_PIECE:
124	current_piece.size = 3;
125	current_piece.positions = 2;
126
127	current_piece.piece[0][0] = false;
128	current_piece.piece[0][1] = true;
129	current_piece.piece[0][2] = true;
130
131	current_piece.piece[1][0] = true;
132	current_piece.piece[1][1] = true;
133	current_piece.piece[1][2] = false;
134
135	current_piece.piece[2][0] = false;
136	current_piece.piece[2][1] = false;
137	current_piece.piece[2][2] = false;
138
139	break;
140
141	case T_PIECE:
142	current_piece.size = 3;
143	current_piece.positions = 4;
144
145	current_piece.piece[0][0] = false;
146	current_piece.piece[0][1] = true;
147	current_piece.piece[0][2] = false;
148
149	current_piece.piece[1][0] = true;
150	current_piece.piece[1][1] = true;
151	current_piece.piece[1][2] = true;
152
153	current_piece.piece[2][0] = false;
154	current_piece.piece[2][1] = false;
155	current_piece.piece[2][2] = false;
156
157	break;
158	case Z_PIECE:
159	current_piece.size = 3;
160	current_piece.positions = 2;
161
162	current_piece.piece[0][0] = true;
163	current_piece.piece[0][1] = true;
164	current_piece.piece[0][2] = false;
165
166	current_piece.piece[1][0] = false;
167	current_piece.piece[1][1] = true;
168	current_piece.piece[1][2] = true;
169
170	current_piece.piece[2][0] = false;
171	current_piece.piece[2][1] = false;
172	current_piece.piece[2][2] = false;
173
174	break;
175	default:
176	perror("Fuck you\n");
177	break;
178	}
179
180	current_piece.x = ((FULL_WIDTH >> 1) - (current_piece.size >> 1));
181
182	return current_piece;
183	}
184
185
186
187	coord find_direction(piece current_piece, uint8_t x, uint8_t y) {
188
189	coord points = {
190	x,
191	y
192	};
193
194	switch (current_piece.rotation) {
195	case TOP:
196	/*
197	x = k;
198	y = j;
199	*/
200	break;
201	case RIGHT:
202	points.x = y;
203	points.y = current_piece.size - (x + 1);
204	break;
205	case BOTTOM:
206	points.x = current_piece.size - (x + 1);
207	points.y = current_piece.size - (y + 1);
208	break;
209	case LEFT:
210	points.x = current_piece.size - (y + 1);
211	points.y = x;
212	break;
213	}
214
215	return points;
216	}
217
218
219	bool valid_position(piece current_piece) {
220
221	uint8_t i, j;
222
223	for(i = 0; i < current_piece.size; i++) {
224	for (j = 0; j < current_piece.size; j++) {
225
226	coord points = find_direction(current_piece, j, i);
227
228	if (
229	current_piece.piece[i][j] &&
230	playfield[current_piece.y + points.y][current_piece.x + points.x] != EMPTY
231	) {
232	return false;
233	}
234	}
235	}
236
237	return true;
238	}