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tetoris_c

public

Small block game in C

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13 commits1 branch2 tags0 releases791.9 KiB

Commit 992df8d5d7cd

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Jaglekon <58274093+Jaglekon@users.noreply.github.com>2026-07-20 22:48 UTC

7 files changed+88-30
grayscaling experimental
source/draw.c+40−20
@@ -1,42 +1,56 @@
11 #include "main.h"
22
3+#define RED ((color){255, 0, 0})
4+#define GREEN ((color){0, 255, 0})
5+#define BLUE ((color){0, 0, 255})
6+#define YELLOW ((color){255, 255, 0})
7+#define MAGENTA ((color){255, 0, 255})
8+#define TEAL ((color){0, 255, 255})
9+#define PURPLE ((color){127, 0, 255})
10+#define WHITE ((color){255, 255, 255})
311
4-#define RED "\033[38;2;255;0;0m"
5-#define GREEN "\033[38;2;0;255;0m"
6-#define BLUE "\033[38;2;0;0;255m"
7-#define YELLOW "\033[38;2;255;255;0m"
8-#define MAGENTA "\033[38;2;255;0;255m"
9-#define TEAL "\033[38;2;0;255;255m"
10-#define PURPLE "\033[38;2;127;0;255m"
11-#define WHITE "\033[38;2;255;255;255m"
1212
13+void draw_color (tetromino current_square, uint8_t gray) {
14+
15+ color col = {};
1316
14-void draw_color (tetromino current_square) {
1517 switch (current_square) {
18+
1619 case I_PIECE:
17- printf("%s", RED);
20+ col = RED;
1821 break;
1922 case J_PIECE:
20- printf("%s", GREEN);
23+ col = GREEN;
2124 break;
2225 case L_PIECE:
23- printf("%s", BLUE);
26+ col = BLUE;
2427 break;
2528 case O_PIECE:
26- printf("%s", YELLOW);
29+ col = YELLOW;
2730 break;
2831 case S_PIECE:
29- printf("%s", MAGENTA);
32+ col = MAGENTA;
3033 break;
3134 case T_PIECE:
32- printf("%s", TEAL);
35+ col = TEAL;
3336 break;
3437 case Z_PIECE:
35- printf("%s", PURPLE);
38+ col = PURPLE;
3639 break;
3740 default:
3841 break;
3942 }
43+
44+ if(gray) {
45+
46+ uint8_t gray_hue = (uint8_t)((299 * col.r + 587 * col.g + 114 * col.b) / 1000);
47+
48+ col.r = ((255 - gray) * col.r + gray * gray_hue) / 255;
49+ col.g = ((255 - gray) * col.g + gray * gray_hue) / 255;
50+ col.b = ((255 - gray) * col.b + gray * gray_hue) / 255;
51+ }
52+
53+ printf("\033[38;2;%i;%i;%im", col.r, col.g, col.b);
4054 }
4155
4256
@@ -57,14 +71,20 @@ void draw_board(piece current_piece, piece next_piece, bool *blink, bool is_piec
5771 printf("┃");
5872
5973 for (j = 0; j < FIELD_WIDTH; j++) {
74+
75+ uint8_t gray = 0;
6076
6177 if ( blink != NULL && blink[i]) {
6278
63- printf("%s", WHITE);
79+ color col = WHITE;
80+
81+ printf("\033[38;2;%i;%i;%im", col.r, col.g, col.b);
6482 } else {
6583
6684
6785 tetromino current_square = playfield[i][j + BORDER_WIDTH];
86+ gray = graying[i][j + BORDER_WIDTH];
87+
6888
6989 if (is_piece) {
7090
@@ -84,14 +104,14 @@ void draw_board(piece current_piece, piece next_piece, bool *blink, bool is_piec
84104 }
85105 }
86106 }
87- }
107+ }
88108
89109 if (current_square <= EMPTY || current_square > Z_PIECE) {
90110 printf("· ");
91111 continue;
92112 }
93113
94- draw_color(current_square);
114+ draw_color(current_square, gray);
95115 }
96116
97117 printf("██\033[0m");
@@ -115,7 +135,7 @@ void draw_board(piece current_piece, piece next_piece, bool *blink, bool is_piec
115135 printf("\033[%iC", FIELD_WIDTH * 2 + 1);
116136 printf("┃");
117137
118- draw_color(next_piece.name);
138+ draw_color(next_piece.name, 0);
119139
120140 for (j = 4; j >= 0; j--) {
121141
source/draw.obinary

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source/logic.c+12−2
@@ -225,9 +225,19 @@ bool valid_position(piece current_piece) {
225225
226226 coord points = find_direction(current_piece, j, i);
227227
228+ int8_t y = current_piece.y + points.y;
229+ int8_t x = current_piece.x + points.x;
230+
231+ if (
232+ y < 0 || y >= FULL_HEIGHT ||
233+ x < 0 || x >= FULL_WIDTH
234+ ) {
235+ return false;
236+ }
237+
228238 if (
229- current_piece.piece[i][j] &&
230- playfield[current_piece.y + points.y][current_piece.x + points.x] != EMPTY
239+ (current_piece.piece[i][j] &&
240+ playfield[y][x] != EMPTY)
231241 ) {
232242 return false;
233243 }
source/logic.obinary

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source/main.c+28−6
@@ -3,6 +3,8 @@
33
44 tetromino playfield[FULL_HEIGHT][FULL_WIDTH] = {};
55
6+uint8_t graying[FULL_HEIGHT][FULL_WIDTH] = {};
7+
68
79 int main () {
810
@@ -29,7 +31,7 @@ int main () {
2931 ioctl(STDOUT_FILENO, TIOCGWINSZ, &init_size);
3032 current_size = init_size;
3133
32- printf("\033[?25l\033[?1049h");
34+ printf("\033[?25l\033[?1049h\033[2J\033[H");
3335
3436
3537 /* Polling */
@@ -61,7 +63,7 @@ int main () {
6163 clock_gettime(CLOCK_MONOTONIC_RAW, &start);
6264
6365
64- uint8_t i;
66+ uint8_t i, j;
6567 bool is_tetris = false;
6668
6769 while (true) {
@@ -140,9 +142,10 @@ int main () {
140142 start.tv_sec += time_diff / 1000000000ULL;
141143 start.tv_nsec += time_diff % 1000000000ULL;
142144
143- draw_board(current_piece, (i % 2 == 0) ? NULL : blink, is_piece);
145+ draw_board(current_piece, next_piece, (i % 2 == 0) ? NULL : blink, is_piece);
144146 i++;
145147 }
148+
146149
147150 if (i == 4) {
148151
@@ -156,6 +159,8 @@ int main () {
156159
157160 for (l = 0; l < FIELD_WIDTH; l++) {
158161 playfield[k][l + BORDER_WIDTH] = playfield[k - 1][l + BORDER_WIDTH];
162+ graying[k][l + BORDER_WIDTH] = graying[k - 1][l + BORDER_WIDTH];
163+
159164 }
160165 }
161166 }
@@ -226,10 +231,27 @@ int main () {
226231 time_diff -= time_diff % (FRAME * FALL);
227232 start.tv_sec += time_diff / 1000000000ULL;
228233 start.tv_nsec += time_diff % 1000000000ULL;
229-
234+
235+ uint8_t j, k;
236+
237+ for (j = 0; j < FULL_HEIGHT; j++) {
238+ for (k = 0; k < FULL_WIDTH; k++) {
239+ if (playfield[j][k] != EMPTY) {
240+
241+ if (graying[j][k] < 255) {
242+ graying[j][k] += 1;
243+ }
244+
245+ } else {
246+ graying[j][k] = 0;
247+ }
248+
249+ }
250+ }
230251
231252 draw = true;
232253 }
254+
233255
234256
235257 /* When a piece is stuck */
@@ -281,7 +303,7 @@ int main () {
281303
282304 for (j = 0; j < FIELD_WIDTH; j++) {
283305 if (playfield[TOP_GAP][j + BORDER_WIDTH] > 0) {
284- draw_board(current_piece, NULL, is_piece);
306+ draw_board(current_piece, next_piece, NULL, is_piece);
285307 sleep(2);
286308 printf("\033[2J\033[H");
287309 printf("HAHA LOSER\n");
@@ -292,7 +314,7 @@ int main () {
292314
293315
294316 if (draw)
295- draw_board(current_piece, NULL, is_piece);
317+ draw_board(current_piece, next_piece, NULL, is_piece);
296318 }
297319
298320 end:
source/main.h+8−2
@@ -1,6 +1,6 @@
1-#ifndef MAIN_C
1+#ifndef MAIN_H
22
3-#define MAIN_C
3+#define MAIN_H
44
55 #include <stdio.h>
66 #include <stdint.h>
@@ -57,6 +57,11 @@ typedef struct {
5757 int8_t y;
5858 } coord;
5959
60+typedef struct {
61+ uint8_t r;
62+ uint8_t g;
63+ uint8_t b;
64+} color;
6065
6166
6267 void init_field();
@@ -74,6 +79,7 @@ bool valid_position(piece current_piece);
7479
7580
7681 extern tetromino playfield[FULL_HEIGHT][FULL_WIDTH];
82+extern uint8_t graying[FULL_HEIGHT][FULL_WIDTH];
7783
7884
7985 #endif
source/main.obinary

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