-
Notifications
You must be signed in to change notification settings - Fork 0
/
tetris_extended.wsf
540 lines (503 loc) · 13.6 KB
/
tetris_extended.wsf
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
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
# Copyright 2008 Peter De Wachter
# Copyright 2020-2024 Thalia Archibald
# Heap usage:
# 0-111 piece rotations
# 112-146 colors
# 147 color depth
# 148 rand
# 149 read char
# 150 tmp
# 151 tmp
# 154-385 board
# Piece rotations are encoded as four directions, each with the offsets for the
# four blocks.
#
# Block offsets in 4x4 grid:
# 0 1 2 4
# 11 12 13 14
# 22 23 24 25
# 33 34 35 36
# Piece rotations:
# O
# .XX. .XX. .XX. .XX.
# .XX. .XX. .XX. .XX.
# .... .... .... ....
# .... .... .... ....
1 2 12 13
1 2 12 13
1 2 12 13
1 2 12 13
# I
# .... ..X. .... .X..
# XXXX ..X. .... .X..
# .... ..X. XXXX .X..
# .... ..#. .... .#..
11 12 13 14
2 13 24 35
22 23 24 25
1 12 23 34
# T
# .X. .X. ... .X.
# XXX .XX XXX XX.
# ... .X. .X. .X.
1 11 12 13
1 12 13 23
11 12 13 23
1 11 12 23
# L
# ..X .X. ... XX.
# XXX .X. XXX .X.
# ... .XX X.. .X.
2 11 12 13
1 12 23 24
11 12 13 22
0 1 12 23
# J
# X.. .XX ... .X.
# XXX .X. XXX .X.
# ... .X. ..X XX.
0 11 12 13
1 2 12 23
11 12 13 24
1 12 22 23
# S
# .XX .X. ... X..
# XX. .XX .XX XX.
# ... ..X XX. .X.
1 2 11 12
1 12 13 24
12 13 22 23
0 11 12 23
# Z
# XX. ..X ... .X.
# .XX .XX XX. XX.
# ... .X. .XX X..
0 1 12 13
2 12 13 23
11 12 23 24
1 11 12 22
# Piece colors:
# Exact 24-bit RGB color from Guideline and approximated fallbacks from ANSI
# 256- and 16-color palettes.
254 203 0 220 43 # O | #FECB00 (yellow) | 220 ~#FFD700 | 43 (yellow)
0 159 218 39 46 # I | #009FDA (light blue) | 39 ~#00AFFF | 46 (cyan)
149 45 152 90 45 # T | #952D98 (purple) | 90 ~#870087 | 45 (magenta)
255 121 0 208 47 # L | #FF7900 (orange) | 208 ~#FF8700 | 47 (white)
0 101 189 25 44 # J | #0065BD (dark blue) | 25 ~#005FAF | 44 (blue)
105 190 40 70 42 # S | #69BE28 (green) | 70 ~#5FAF00 | 42 (green)
237 41 57 9 41 # Z | #ED2939 (red) | 9 ~#EF2929 | 41 (red)
# Store piece rotations and colors seed at addresses 0-146
146
.init_pieces:
swap ^1 swap
store
1-
^ jn .init_pieces__break
jmp .init_pieces
.init_pieces__break:
drop
# Initial board:
#
# 154: -2 0 0 0 0 0 0 0 0 0 0
# 165: -2 0 0 0 0 0 0 0 0 0 0
# 176: -2 0 0 0 0 0 0 0 0 0 0
# 187: -2 0 0 0 0 0 0 0 0 0 0
# 198: -2 0 0 0 0 0 0 0 0 0 0
# 209: -2 0 0 0 0 0 0 0 0 0 0
# 220: -2 0 0 0 0 0 0 0 0 0 0
# 231: -2 0 0 0 0 0 0 0 0 0 0
# 242: -2 0 0 0 0 0 0 0 0 0 0
# 253: -2 0 0 0 0 0 0 0 0 0 0
# 264: -2 0 0 0 0 0 0 0 0 0 0
# 275: -2 0 0 0 0 0 0 0 0 0 0
# 286: -2 0 0 0 0 0 0 0 0 0 0
# 297: -2 0 0 0 0 0 0 0 0 0 0
# 308: -2 0 0 0 0 0 0 0 0 0 0
# 319: -2 0 0 0 0 0 0 0 0 0 0
# 330: -2 0 0 0 0 0 0 0 0 0 0
# 341: -2 0 0 0 0 0 0 0 0 0 0
# 352: -2 0 0 0 0 0 0 0 0 0 0
# 363: -2 0 0 0 0 0 0 0 0 0 0
# 374: -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2 -2
#
# Cell values:
# empty: 0
# block: -1
# wall: -2
# Initialize the board at addresses 154-385
154
.init_board__walls:
^ -2 store
11+
^ 374 j< .init_board__walls
.init_board__floor:
^ -2 store
1+
^ 386 j< .init_board__floor
drop
# Read the supported color depth
"Color depth (16/256/24): " prints
147 readi
# Read the random seed
"Seed (integer): " prints
148
^ readi
^ retrieve
^ jz .init_seed__zero
^ jn .init_seed__neg
2drop
jmp .init_seed__done
.init_seed__zero:
drop 123456 store
jmp .init_seed__done
.init_seed__neg:
neg store
.init_seed__done:
call draw_empty_board
# Spawns the next piece at the top of the board.
# ( -- !)
.game_loop__spawn_piece:
4 # Piece position
call rand_piece 16*
call draw_piece
call check_collision jn game_over
call draw_ghost_piece
# Reads a key press from the user.
# (pos piece -- !)
.game_loop__read_key:
call move_cursor_bottom_right
2dup
149 ^ readc retrieve
^ 'w' j= .game_loop__rotate
^ 'a' j= .game_loop__move_left
^ 's' j= .game_loop__move_down
^ 'd' j= .game_loop__move_right
^ 'e' j= .game_loop__drop
^ 'q' j= .game_loop__quit
^ 'i' j= .game_loop__rotate
^ 'j' j= .game_loop__move_left
^ 'k' j= .game_loop__move_down
^ 'l' j= .game_loop__move_right
^ 'o' j= .game_loop__drop
^ '\e' j= .game_loop__escape
drop
.game_loop__no_move:
2drop
jmp .game_loop__read_key
# Handle \e[A, \e[B, \e[C, and \e[D arrow keys; otherwise quit.
.game_loop__escape:
drop
149 ^ readc retrieve
^ '[' j= .game_loop__escape_arrow
jmp .game_loop__quit
.game_loop__escape_arrow:
drop
149 ^ readc retrieve
^ 'A' j= .game_loop__rotate
^ 'B' j= .game_loop__move_down
^ 'C' j= .game_loop__move_right
^ 'D' j= .game_loop__move_left
jmp .game_loop__quit
.game_loop__rotate:
drop ^ 16/ 16* swap 4+ 16% +
jmp .game_loop__try_move
.game_loop__move_left:
drop swap 1- swap
jmp .game_loop__try_move
.game_loop__move_right:
drop swap 1+ swap
jmp .game_loop__try_move
.game_loop__move_down:
drop swap 11+ swap
call check_collision jn .game_loop__place_piece
jmp .game_loop__move
.game_loop__drop:
3drop
call erase_piece
call hard_drop_piece
call place_piece
jmp .game_loop__spawn_piece
.game_loop__quit:
3drop
jmp game_over
# Moves the piece left, right, or rotates it.
# (pos piece pos' piece' -- ! pos'' piece'')
.game_loop__try_move:
call check_collision jn .game_loop__no_move
# Moves the piece.
# (pos piece pos' piece' -- ! pos' piece')
.game_loop__move:
# Discard old position using heap temporaries
150 swap store
151 swap store
call erase_piece
call erase_ghost_piece
2drop
151 retrieve
150 retrieve
call draw_ghost_piece
call draw_piece
jmp .game_loop__read_key
# Places the piece, then spawns the next.
# (pos piece pos' piece' -- !)
.game_loop__place_piece:
2drop
call place_piece
jmp .game_loop__spawn_piece
# Quits the game and cleans up the bottom right corner of the board.
# (pos piece -- !)
game_over:
2drop
call move_cursor_bottom_right
call reverse_color
" \n" prints # Fill empty bottom-right corner
"\e[G" prints # Move cursor to start of line
call reset_color
end
# Returns the next piece (0-6) and updates the pseudorandom state.
# ( -- piece)
rand_piece:
# Update the rand state to (rand*279470273)%4294967291
148
^ retrieve 279470273* 4294967291%
swap ^1 store
# Return rand%7
7% ret
# Removes any filled lines.
# ( -- )
remove_filled_lines:
374
# Iterate lines, starting at the bottom
.remove_filled_lines__loop_line:
11/ 11* 1-
^ 155 j< .remove_filled_lines__ret
# Iterate columns, starting at the right
.remove_filled_lines__loop_col:
^ retrieve jz .remove_filled_lines__loop_line
1-
^ 11% jz .remove_filled_lines__remove_line
jmp .remove_filled_lines__loop_col
.remove_filled_lines__remove_line:
^ 11/ 13- call remove_line
^ call shift_board_lines
11+
jmp .remove_filled_lines__loop_line
.remove_filled_lines__ret:
drop ret
# Shifts lines above pos in heap down by one.
# (pos -- )
shift_board_lines:
^ ^ retrieve
swap 11+ swap store
1-
154 ^1 j< shift_board_lines
# Set top line to 0
.shift_board_lines__clear_top:
^ 0 store
1+
^ 165 j< .shift_board_lines__clear_top
drop ret
# Checks whether the piece collides with other blocks or a wall. Returns -1 on
# collision and 0 otherwise.
# (pos piece -- pos piece collided?)
check_collision:
^1 154+ ^1
^ retrieve ^2 + retrieve jn .check_collision__collided
1+ ^ retrieve ^2 + retrieve jn .check_collision__collided
1+ ^ retrieve ^2 + retrieve jn .check_collision__collided
1+ ^ retrieve ^2 + retrieve jn .check_collision__collided
2drop 0 ret
.check_collision__collided:
2drop -1 ret
# Places the piece on the board and removes any filled lines.
# (pos piece -- )
place_piece:
call draw_piece
swap 154+ swap
^ retrieve ^2 + -1 store
1+ ^ retrieve ^2 + -1 store
1+ ^ retrieve ^2 + -1 store
1+ retrieve + -1 store
jmp remove_filled_lines
# Hard drops the piece.
# (pos piece -- pos' piece')
hard_drop_piece:
swap 11+ swap
call check_collision jz hard_drop_piece
swap 11- swap
ret
# Draws the piece.
# (pos piece -- pos piece)
draw_piece:
^ 16/ 5* 112+
^ retrieve swap
1+ ^ retrieve swap
1+ ^ retrieve swap
1+ ^ retrieve swap
1+ retrieve
# Draws the piece with the given RGB color.
# (pos piece r g b c256 c16 -- pos piece)
draw_piece_colored:
call set_color
.draw_piece:
^ ^ retrieve ^3 + call draw_block
1+ ^ retrieve ^3 + call draw_block
1+ ^ retrieve ^3 + call draw_block
1+ retrieve ^2 + call draw_block
ret
# Erases the piece.
# (pos piece -- pos piece)
erase_piece:
"\e[0;49m" prints # Reset and set background to default
jmp .draw_piece
# Draws a block at the given position.
# (pos -- )
draw_block:
^
# Move cursor to line (n/11+1), col ((n%11)*2+1)
"\e[" prints
11/ 1+ printi
';' printc
11% 2* 1+ printi
'H' printc
"\e[2X" prints # Erase next 2 characters without moving cursor
" " prints
ret
# Draws a ghost piece at the bottom of the field.
# (pos piece -- pos piece)
draw_ghost_piece:
2dup call hard_drop_piece
# Arbitrary color, not specified in Guideline
# #626262 | 241 ~#626262 | 100 (bright black)
98 98 98 241 100 call draw_piece_colored
2drop ret
# Erases the ghost piece at the bottom of the field.
# (pos piece -- pos piece)
erase_ghost_piece:
2dup call hard_drop_piece
call erase_piece
2drop ret
# Removes a filled line and shifts the above lines down.
# (line -- )
remove_line:
call reset_color
"\e[" prints printi 'H' printc # Move cursor to line
"\e[1M" prints # Delete current line and shift remaining lines up
jmp draw_board_line # Add empty line at top
# Draws an empty board.
# ( -- )
draw_empty_board:
"\e[2J" prints # Clear entire screen
# Draw floor except for bottom-right corner
"\e[H" prints # Move cursor to upper-left corner
call reverse_color
23 call print_spaces
# Draw 20 lines of walls
-20
.draw_empty_board__loop:
call draw_board_line
1+
^ jn .draw_empty_board__loop
drop ret
# Inserts a line and walls at the top of the board.
# ( -- )
draw_board_line:
call reset_color
"\e[H" prints # Move cursor to upper-left corner
"\e[L" prints # Insert line at cursor
call reverse_color
" " prints # Draw left wall
"\e[23G " prints # Draw right wall at column 23
ret
# Moves cursor to the bottom-right corner, where user input is read.
# ( -- )
move_cursor_bottom_right:
"\e[21;24H" prints # Move cursor to line 21, col 24
jmp reset_color
# Sets background to a 24-bit RGB color or to a fallback color from the ANSI
# 256- and 16-color palettes, depending on the terminal capabilities.
# (r g b c256 c16 -- )
set_color:
147 retrieve
^ 24 j= .set_color__24_bit
256 j= .set_color__256_palette
"\e[0;" prints
# Use 16-color palette
printi 'm' printc
4drop ret
# Use 24-bit color
.set_color__24_bit:
3drop
"\e[0;48;2;" prints
^2 printi ';' printc # R
swap printi ';' printc # G
printi 'm' printc # B
drop ret
# Use 256-color palette
.set_color__256_palette:
drop 3slide
"\e[0;48;5;" prints
printi 'm' printc
ret
# Sets reverse video on.
# ( -- )
reverse_color:
"\e[0;7m" prints
ret
# Resets all terminal attributes.
# ( -- )
reset_color:
"\e[0m" prints
ret
# Prints n spaces.
# (n -- )
print_spaces:
^ jz .print_spaces__ret
' ' printc
1-
jmp print_spaces
.print_spaces__ret:
drop ret
# Prints the board state below the board.
# ( -- )
debug_dump_board:
"\e[22H" prints # Move cursor to line 22
call reset_color
"\e[0J" prints # Clear from cursor to screen end
154
.debug_dump_board__loop:
^ 11% jz .debug_dump_board__line_number
.debug_dump_board__cell:
' ' printc
^ retrieve printi
1+
^ 386 j< .debug_dump_board__loop
'\n' printc
drop
jmp debug_dump_stack
.debug_dump_board__line_number:
'\n' printc
^ printi
':' printc
jmp .debug_dump_board__cell
# Prints the values on the stack nondestructively. Requires that the sentinel
# -999999999 be under the stack region to print. Limited to up to 10 elements.
# (-999999999 s... -- -999999999 s...)
debug_dump_stack:
"\e[46H" prints # Move cursor to line 36
call reset_color
"\e[0J" prints # Clear from cursor to screen end
^ ^ -999999999 j= .debug_dump_stack__ret printi '\n' printc
^1 ^ -999999999 j= .debug_dump_stack__ret printi '\n' printc
^2 ^ -999999999 j= .debug_dump_stack__ret printi '\n' printc
^3 ^ -999999999 j= .debug_dump_stack__ret printi '\n' printc
^4 ^ -999999999 j= .debug_dump_stack__ret printi '\n' printc
^5 ^ -999999999 j= .debug_dump_stack__ret printi '\n' printc
^6 ^ -999999999 j= .debug_dump_stack__ret printi '\n' printc
^7 ^ -999999999 j= .debug_dump_stack__ret printi '\n' printc
^8 ^ -999999999 j= .debug_dump_stack__ret printi '\n' printc
^9 ^ -999999999 j= .debug_dump_stack__ret printi '\n' printc
^10 ^ -999999999 j= .debug_dump_stack__ret
"[truncated]\n" prints
.debug_dump_stack__ret:
drop ret