mirror of
https://github.com/qmk/qmk_firmware.git
synced 2024-12-16 06:33:23 +00:00
506 lines
11 KiB
C
506 lines
11 KiB
C
/* Copyright 2017 Dan Amlund Thomsen
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <stdarg.h>
|
|
#include <stdint.h>
|
|
|
|
#include "tetris_text.h"
|
|
|
|
static char empty_piece[7][7] = { { 0, 0, 0, 0, 0, 0, 0 },
|
|
{ 0, 0, 0, 0, 0, 0, 0 },
|
|
{ 0, 0, 0, 0, 0, 0, 0 },
|
|
{ 0, 0, 0, 0, 0, 0, 0 },
|
|
{ 0, 0, 0, 0, 0, 0, 0 },
|
|
{ 0, 0, 0, 0, 0, 0, 0 },
|
|
{ 0, 0, 0, 0, 0, 0, 0 } };
|
|
|
|
static char temp_piece[7][7];
|
|
|
|
static int curx = 0;
|
|
static int cury = 0;
|
|
|
|
static void clear_piece(char piece[7][7]) {
|
|
for (int y = 0; y < 7; y++) {
|
|
for (int x = 0; x < 7; x++) {
|
|
piece[x][y] = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void copy_piece_from_to(char from[7][7], char to[7][7]) {
|
|
for (int y = 0; y < 7; y++) {
|
|
for (int x = 0; x < 7; x++) {
|
|
to[x][y] = from[x][y];
|
|
}
|
|
}
|
|
}
|
|
|
|
static void rotate_piece(char piece[7][7]) {
|
|
// transpose
|
|
for (int y = 0; y < 7; y++) {
|
|
for (int x = y + 1; x < 7; x++) {
|
|
char tmp = piece[y][x];
|
|
piece[y][x] = piece[x][y];
|
|
piece[x][y] = tmp;
|
|
}
|
|
}
|
|
|
|
// reverse rows
|
|
for (int y = 0; y < 7; y++) {
|
|
for (int x = 0; x < 3; x++) {
|
|
char tmp = piece[y][6 - x];
|
|
piece[y][6 - x] = piece[y][x];
|
|
piece[y][x] = tmp;
|
|
}
|
|
}
|
|
}
|
|
|
|
static char get_shape_char(int shape) {
|
|
switch (shape) {
|
|
case 0: return 'I';
|
|
case 1: return 'J';
|
|
case 2: return 'L';
|
|
case 3: return 'O';
|
|
case 4: return 'S';
|
|
case 5: return 'T';
|
|
case 6: return 'Z';
|
|
}
|
|
return 'Q';
|
|
}
|
|
|
|
static void set_piece(char piece[7][7], int shape, int rotation) {
|
|
clear_piece(piece);
|
|
switch (shape) {
|
|
case 0:
|
|
if (rotation % 2 == 0) {
|
|
// xxXx
|
|
piece[3][1] = 1;
|
|
piece[3][2] = 1;
|
|
piece[3][3] = 1;
|
|
piece[3][4] = 1;
|
|
} else {
|
|
// x
|
|
// x
|
|
// X
|
|
// x
|
|
piece[1][3] = 1;
|
|
piece[2][3] = 1;
|
|
piece[3][3] = 1;
|
|
piece[4][3] = 1;
|
|
}
|
|
break;
|
|
case 1:
|
|
// xXx
|
|
// x
|
|
piece[3][2] = 1;
|
|
piece[3][3] = 1;
|
|
piece[3][4] = 1;
|
|
piece[4][4] = 1;
|
|
for (int i = 0; i < rotation; i++) {
|
|
rotate_piece(piece);
|
|
}
|
|
break;
|
|
case 2:
|
|
// xXx
|
|
// x
|
|
piece[3][2] = 1;
|
|
piece[3][3] = 1;
|
|
piece[3][4] = 1;
|
|
piece[4][2] = 1;
|
|
for (int i = 0; i < rotation; i++) {
|
|
rotate_piece(piece);
|
|
}
|
|
break;
|
|
case 3:
|
|
// xX
|
|
// xx
|
|
piece[3][2] = 1;
|
|
piece[3][3] = 1;
|
|
piece[4][2] = 1;
|
|
piece[4][3] = 1;
|
|
break;
|
|
case 4:
|
|
if (rotation % 2 == 0) {
|
|
// xX
|
|
// xx
|
|
piece[3][2] = 1;
|
|
piece[3][3] = 1;
|
|
piece[4][3] = 1;
|
|
piece[4][4] = 1;
|
|
} else {
|
|
// x
|
|
// xX
|
|
// x
|
|
piece[2][3] = 1;
|
|
piece[3][2] = 1;
|
|
piece[3][3] = 1;
|
|
piece[4][2] = 1;
|
|
}
|
|
break;
|
|
case 5:
|
|
// xXx
|
|
// x
|
|
piece[3][2] = 1;
|
|
piece[3][3] = 1;
|
|
piece[3][4] = 1;
|
|
piece[4][3] = 1;
|
|
for (int i = 0; i < rotation; i++) {
|
|
rotate_piece(piece);
|
|
}
|
|
break;
|
|
case 6:
|
|
if (rotation % 2 == 0) {
|
|
// Xx
|
|
// xx
|
|
piece[3][3] = 1;
|
|
piece[3][4] = 1;
|
|
piece[4][2] = 1;
|
|
piece[4][3] = 1;
|
|
} else {
|
|
// x
|
|
// Xx
|
|
// x
|
|
piece[2][3] = 1;
|
|
piece[3][3] = 1;
|
|
piece[3][4] = 1;
|
|
piece[4][4] = 1;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void send_deletes(int deletes) {
|
|
for (int i = 0; i < deletes; i++) {
|
|
tetris_send_delete();
|
|
}
|
|
}
|
|
|
|
static void send_backspaces(int backspaces) {
|
|
for (int i = 0; i < backspaces; i++) {
|
|
tetris_send_backspace();
|
|
curx--;
|
|
}
|
|
}
|
|
|
|
static void send_goto_xy(int x, int y) {
|
|
while (curx < x) {
|
|
tetris_send_right();
|
|
curx++;
|
|
}
|
|
while (curx > x) {
|
|
tetris_send_left();
|
|
curx--;
|
|
}
|
|
while (cury < y) {
|
|
tetris_send_down();
|
|
cury++;
|
|
}
|
|
while (cury > y) {
|
|
tetris_send_up();
|
|
cury--;
|
|
}
|
|
}
|
|
|
|
static void draw_row(char c, const char oldrow[7], const char newrow[7], int x, int y) {
|
|
char str[2] = { c, 0 };
|
|
char row_is_del[7] = { 0 };
|
|
int first = -1;
|
|
int last = -1;
|
|
for (int px = 0; px < 7; px++) {
|
|
if (oldrow[px] && !newrow[px]) {
|
|
row_is_del[px] = 1;
|
|
}
|
|
if (newrow[px] || oldrow[px]) {
|
|
if (first == -1) first = px;
|
|
last = px;
|
|
}
|
|
}
|
|
|
|
if (first >= 0) {
|
|
if (curx > x + last + 1) {
|
|
send_goto_xy(x + last + 1, cury);
|
|
}
|
|
if (curx < x + first) {
|
|
send_goto_xy(x + first, cury);
|
|
}
|
|
send_goto_xy(curx, y);
|
|
send_deletes((x + last + 1) - curx);
|
|
send_backspaces(curx - (x + first));
|
|
for (int i = first; i <= last; i++) {
|
|
if (row_is_del[i]) {
|
|
tetris_send_string(".");
|
|
} else {
|
|
tetris_send_string(str);
|
|
}
|
|
curx++;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void move_piece_from_to(char from[7][7], char to[7][7], int xadd, int yadd) {
|
|
for (int y = 0; y < 7; y++) {
|
|
for (int x = 0; x < 7; x++) {
|
|
if (x + xadd >= 0 && x + xadd < 7 && y + yadd >= 0 && y + yadd < 7) {
|
|
to[y][x] = from[y + yadd][x + xadd];
|
|
} else {
|
|
to[y][x] = 0;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void draw_piece(char c, int x, int y, char oldpiece[7][7], char piece[7][7]) {
|
|
for (int py = 0; py < 7; py++) {
|
|
draw_row(c, oldpiece[py], piece[py], x, y + py);
|
|
}
|
|
}
|
|
|
|
static void draw_piece_moved(char c, int x, int y, char piece[7][7], int oldxadd, int oldyadd) {
|
|
move_piece_from_to(piece, temp_piece, oldxadd, oldyadd);
|
|
draw_piece(c, x, y, temp_piece, piece);
|
|
}
|
|
|
|
static int is_piece_hitting(char board[20][10], char piece[7][7], int x, int y) {
|
|
for (int py = 0; py < 7; py++) {
|
|
for (int px = 0; px < 7; px++) {
|
|
if (piece[py][px] &&
|
|
(px + x >= 10 || px + x < 0
|
|
|| py + y >= 20 || py + y < 0
|
|
|| board[py + y][px + x])) {
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void add_piece_to_board(char piece[7][7], char board[20][10], int x, int y) {
|
|
for (int py = 0; py < 7; py++) {
|
|
for (int px = 0; px < 7; px++) {
|
|
if (piece[py][px]) {
|
|
board[py + y][px + x] = piece[py][px];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void draw_board_line(void) {
|
|
//send_string("l l");
|
|
tetris_send_string("l..........l");
|
|
tetris_send_newline();
|
|
}
|
|
static void init(void) {
|
|
for (int i = 0; i < 20; i++) {
|
|
draw_board_line();
|
|
}
|
|
tetris_send_string("doooooooooob");
|
|
curx = 12;
|
|
cury = 20;
|
|
}
|
|
|
|
static int get_piece_min_y(char piece[7][7]) {
|
|
for (int y = 0; y < 7; y++) {
|
|
for (int x = 0; x < 7; x++) {
|
|
if (piece[y][x])
|
|
return y;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int clear_lines(char board[20][10]) {
|
|
int cleared_lines = 0;
|
|
for (int y = 19; y >= 0; y--) {
|
|
char isfull = 1;
|
|
for (int x = 0; x < 10; x++) {
|
|
if (!board[y][x]) {
|
|
isfull = 0;
|
|
}
|
|
}
|
|
if (isfull) {
|
|
// delete clear line
|
|
send_goto_xy(12, y);
|
|
send_backspaces(12); // delete line contents
|
|
// delete newline
|
|
tetris_send_backspace();
|
|
cury--;
|
|
curx = 12;
|
|
cleared_lines++;
|
|
} else {
|
|
if (cleared_lines > 0) {
|
|
// move cleared lines down on board
|
|
for (int x = 0; x < 10; x++) {
|
|
board[y + cleared_lines][x] = board[y][x];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// clear cleared top lines
|
|
for (int y = 0; y < cleared_lines; y++) {
|
|
for (int x = 0; x < 10; x++) {
|
|
board[y][x] = 0;
|
|
}
|
|
}
|
|
if (cleared_lines > 0) {
|
|
send_goto_xy(0, 0);
|
|
for (int i = 0; i < cleared_lines; i++) {
|
|
draw_board_line();
|
|
curx = 0;
|
|
cury++;
|
|
}
|
|
}
|
|
return cleared_lines;
|
|
}
|
|
|
|
static uint8_t myrandom(uint8_t seed) {
|
|
uint8_t out = seed >> 1;
|
|
if (seed & 1) {
|
|
out = out ^ 0xB8;
|
|
}
|
|
return out;
|
|
}
|
|
|
|
static char piece[7][7];
|
|
static char board[20][10];
|
|
static uint8_t r;
|
|
static int score;
|
|
static int x;
|
|
static int y;
|
|
static int shape;
|
|
static int rotation;
|
|
static int time;
|
|
static int next_down;
|
|
static int down_delay;
|
|
static int first_run;
|
|
static int game_over;
|
|
|
|
void tetris_start(uint8_t seed) {
|
|
for (int y = 0; y < 20; y++) {
|
|
for (int x = 0; x < 10; x++) {
|
|
board[y][x] = 0;
|
|
}
|
|
}
|
|
|
|
clear_piece(piece);
|
|
|
|
init();
|
|
|
|
game_over = 0;
|
|
|
|
r = seed;
|
|
score = 0;
|
|
|
|
copy_piece_from_to(empty_piece, piece);
|
|
x = 0;
|
|
y = 0;
|
|
shape = 0;
|
|
rotation = 0;
|
|
time = 0;
|
|
next_down = 0;
|
|
down_delay = -1;
|
|
first_run = 1;
|
|
}
|
|
|
|
int tetris_tick(int ms_since_previous_tick) {
|
|
if (game_over) {
|
|
return 0;
|
|
}
|
|
|
|
time += ms_since_previous_tick;
|
|
|
|
if (first_run || time > next_down) {
|
|
if (first_run || is_piece_hitting(board, piece, x, y + 1)) {
|
|
first_run = 0;
|
|
add_piece_to_board(piece, board, x, y);
|
|
|
|
score += clear_lines(board);
|
|
|
|
down_delay = 500 - score * 10;
|
|
if (down_delay < 100) {
|
|
down_delay = 100;
|
|
}
|
|
|
|
rotation = 0;
|
|
shape = r % 7;
|
|
r = myrandom(r);
|
|
set_piece(piece, shape, rotation);
|
|
|
|
x = 1;
|
|
y = - get_piece_min_y(piece);
|
|
draw_piece_moved(get_shape_char(shape), 1 + x, y, piece, 0, 0);
|
|
|
|
if (is_piece_hitting(board, piece, x, y)) {
|
|
game_over = 1;
|
|
send_goto_xy(12, 10);
|
|
tetris_send_string(" game over");
|
|
tetris_send_down();
|
|
tetris_send_string(" score ");
|
|
char tmp[10];
|
|
sprintf(tmp, "%d", score);
|
|
tetris_send_string(tmp);
|
|
return 0;
|
|
}
|
|
} else {
|
|
y++;
|
|
draw_piece_moved(get_shape_char(shape), 1 + x, y, piece, 0, +1);
|
|
}
|
|
next_down = time + down_delay;
|
|
} else {
|
|
|
|
switch (tetris_get_keypress()) {
|
|
case 1: { // up
|
|
int oldrotation = rotation;
|
|
rotation = (rotation + 1) % 4;
|
|
copy_piece_from_to(piece, temp_piece);
|
|
set_piece(piece, shape, rotation);
|
|
if (is_piece_hitting(board, piece, x, y)) {
|
|
rotation = oldrotation;
|
|
set_piece(piece, shape, rotation);
|
|
} else {
|
|
draw_piece(get_shape_char(shape), 1 + x, y, temp_piece, piece);
|
|
}
|
|
break;
|
|
}
|
|
case 2: // left
|
|
if (!is_piece_hitting(board, piece, x - 1, y)) {
|
|
x--;
|
|
draw_piece_moved(get_shape_char(shape), 1 + x, y, piece, -1, 0);
|
|
}
|
|
break;
|
|
case 3: {// down
|
|
int starty = y;
|
|
while (!is_piece_hitting(board, piece, x, y + 1)) {
|
|
y++;
|
|
}
|
|
|
|
draw_piece(get_shape_char(shape), x + 1, starty, piece, empty_piece);
|
|
draw_piece(get_shape_char(shape), x + 1, y, empty_piece, piece);
|
|
|
|
next_down = time + down_delay;
|
|
break;
|
|
}
|
|
case 4: // right
|
|
if (!is_piece_hitting(board, piece, x + 1, y)) {
|
|
x++;
|
|
draw_piece_moved(get_shape_char(shape), 1 + x, y, piece, 1, 0);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|