1 REGISTER_MINIGAME(snake, "Snake"); // SNAAAAKE
3 const float SNAKE_TURN_MOVE = 0x0100; // the snake is moving, player must control it
4 const float SNAKE_TURN_WIN = 0x0200; // multiplayer victory
5 const float SNAKE_TURN_LOSS = 0x0400; // they did it?!
6 const float SNAKE_TURN_TYPE = 0x0f00; // turn type mask
8 const int SNAKE_TURN_TEAM = 0x000f; // turn team mask
10 const int SNAKE_SF_PLAYERSCORE = MINIG_SF_CUSTOM;
12 const int SNAKE_LET_CNT = 15;
13 const int SNAKE_NUM_CNT = 15;
15 const int SNAKE_TILE_SIZE = 15;
17 const int SNAKE_TEAMS = 6;
19 bool autocvar_sv_minigames_snake_wrap = false;
20 float autocvar_sv_minigames_snake_delay_initial = 0.7;
21 float autocvar_sv_minigames_snake_delay_multiplier = 50;
22 float autocvar_sv_minigames_snake_delay_min = 0.1;
23 int autocvar_sv_minigames_snake_lives = 3;
32 .int snake_lives[SNAKE_TEAMS + 1];
34 .int snake_lost_teams;
36 bool snake_alone(entity minig)
40 while ( ( e = findentity(e,owner,minig) ) )
41 if ( e.classname == "minigame_board_piece" && e.cnt == 1 )
44 return headcount <= 1;
47 // find same game piece given its tile name
48 entity snake_find_piece(entity minig, string tile)
51 while ( ( e = findentity(e,owner,minig) ) )
52 if ( e.classname == "minigame_board_piece" && e.netname == tile )
57 // find same game piece given its cnt
58 entity snake_find_cnt(entity minig, int steam, int tile)
61 while ( ( e = findentity(e,owner,minig) ) )
62 if ( e.classname == "minigame_board_piece" && e.cnt == tile && e.team == steam )
67 // check if the tile name is valid (15x15 grid)
68 bool snake_valid_tile(string tile)
72 int number = minigame_tile_number(tile);
73 int letter = minigame_tile_letter(tile);
74 return 0 <= number && number < SNAKE_NUM_CNT && 0 <= letter && letter < SNAKE_LET_CNT;
77 entity snake_find_head(entity minig, int steam)
80 while ( ( e = findentity(e,owner,minig) ) )
81 if ( e.classname == "minigame_board_piece" && e.cnt == 1 && e.team == steam )
86 void snake_new_mouse(entity minigame)
88 RandomSelection_Init();
90 for(i = 0; i < SNAKE_LET_CNT; ++i)
91 for(j = 0; j < SNAKE_NUM_CNT; ++j)
93 string pos = minigame_tile_buildname(i, j);
94 if(!snake_find_piece(minigame, pos))
95 RandomSelection_Add(world, 0, pos, 1, 1);
98 entity piece = msle_spawn(minigame,"minigame_board_piece");
100 piece.netname = strzone(RandomSelection_chosen_string);
101 minigame_server_sendflags(piece,MINIG_SF_ALL);
103 minigame_server_sendflags(minigame,MINIG_SF_UPDATE);
106 entity snake_get_player(entity minigame, int pteam);
107 int snake_winning_team(entity minigame)
109 int winning_team = 0;
110 for(int i = 1; i <= SNAKE_TEAMS; ++i)
112 entity pl = snake_get_player(minigame, i);
113 if(pl && minigame.snake_lives[i] > 0)
124 void snake_check_winner(entity minigame)
126 if(snake_alone(minigame) && !minigame.snake_lost_teams)
129 int winner = snake_winning_team(minigame);
132 for(int i = 1; i <= SNAKE_TEAMS; ++i)
134 entity pl = snake_get_player(minigame, i);
135 if(pl && minigame.snake_lives[i] > 0)
141 minigame.minigame_flags = SNAKE_TURN_LOSS;
142 minigame_server_sendflags(minigame,MINIG_SF_UPDATE);
148 minigame.minigame_flags = SNAKE_TURN_WIN | winner;
149 minigame_server_sendflags(minigame,MINIG_SF_UPDATE);
153 void snake_move_head(entity minigame, entity head);
154 void snake_head_think()
156 entity minigame = self.owner;
158 if(minigame.minigame_flags & SNAKE_TURN_MOVE)
159 snake_move_head(minigame, self);
161 snake_check_winner(minigame);
163 self.nextthink = time + self.snake_delay;
166 void minigame_setup_snake(entity minigame, int pteam)
168 RandomSelection_Init();
170 for(i = 1; i < SNAKE_LET_CNT - 1; ++i)
171 for(j = 1; j < SNAKE_NUM_CNT - 1; ++j)
173 string pos = minigame_tile_buildname(i, j);
174 if(!snake_find_piece(minigame, pos))
175 RandomSelection_Add(world, 0, pos, 1, 1);
178 entity piece = msle_spawn(minigame,"minigame_board_piece");
180 piece.netname = strzone(RandomSelection_chosen_string);
182 piece.think = snake_head_think;
183 piece.snake_delay = autocvar_sv_minigames_snake_delay_initial;
184 piece.nextthink = time + 0.1;
185 minigame_server_sendflags(piece,MINIG_SF_ALL);
188 void snake_setup_pieces(entity minigame)
190 snake_new_mouse(minigame);
192 minigame_server_sendflags(minigame,MINIG_SF_UPDATE);
195 entity snake_get_player(entity minigame, int pteam)
199 for(e = minigame.minigame_players; e; e = e.list_next)
202 while( (e = findentity(e,owner,minigame)) )
203 if ( e.classname == "minigame_player" )
210 void snake_add_score(entity minigame, int pteam, int thescore)
215 entity pl = snake_get_player(minigame, pteam);
218 pl.snake_score += thescore;
219 pl.SendFlags |= SNAKE_SF_PLAYERSCORE;
224 void snake_move_body(entity minigame, entity head, bool ate_mouse)
227 string tailpos = string_null;
228 vector taildir = '0 0 0';
231 for(i = (SNAKE_NUM_CNT * SNAKE_LET_CNT); i >= 2; --i)
233 entity piece = snake_find_cnt(minigame, head.team, i);
234 entity nextpiece = snake_find_cnt(minigame, head.team, i - 1);
243 tailpos = piece.netname;
244 taildir = piece.snake_dir;
247 if(piece.netname) { strunzone(piece.netname); }
248 piece.netname = strzone(nextpiece.netname);
249 piece.snake_dir = nextpiece.snake_dir;
250 minigame_server_sendflags(piece, MINIG_SF_ALL);
257 tailpos = head.netname;
258 taildir = head.snake_dir;
261 if(tail && ate_mouse)
263 tail.snake_tail = false;
265 int newcnt = tail.cnt + 1;
266 head.snake_delay = max(autocvar_sv_minigames_snake_delay_min, autocvar_sv_minigames_snake_delay_initial - (newcnt / autocvar_sv_minigames_snake_delay_multiplier));
267 snake_add_score(minigame, head.team, 1);
269 entity piece = msle_spawn(minigame,"minigame_board_piece");
271 piece.team = head.team;
272 piece.snake_dir = taildir;
273 piece.snake_tail = true;
274 piece.netname = strzone(tailpos);
275 minigame_server_sendflags(piece,MINIG_SF_ALL);
277 minigame_server_sendflags(minigame,MINIG_SF_UPDATE);
281 void snake_eat_team(entity minigame, int pteam)
283 entity head = snake_find_head(minigame, pteam);
284 if(!head) { return; }
286 minigame.snake_lives[pteam] -= 1;
288 entity pl = snake_get_player(minigame, pteam);
290 pl.SendFlags |= SNAKE_SF_PLAYERSCORE;
293 head.nextthink = time + 1; // make sure they don't to eat us somehow
296 while ( ( e = findentity(e,owner,minigame) ) )
297 if ( e.classname == "minigame_board_piece" && e.cnt && e.team == pteam )
299 if(e.netname) { strunzone(e.netname); }
303 if(minigame.snake_lives[pteam] <= 0)
304 minigame.snake_lost_teams |= BIT(pteam);
306 if(pl && minigame.snake_lives[pteam] > 0)
307 minigame_setup_snake(minigame, pteam);
310 void snake_move_head(entity minigame, entity head)
312 if(!head.snake_dir_x && !head.snake_dir_y)
317 if(autocvar_sv_minigames_snake_wrap)
318 newpos = minigame_relative_tile(head.netname, head.snake_dir_x, head.snake_dir_y, SNAKE_NUM_CNT, SNAKE_LET_CNT);
321 int myx = minigame_tile_letter(head.netname);
322 int myy = minigame_tile_number(head.netname);
324 myx += head.snake_dir_x;
325 myy += head.snake_dir_y;
327 newpos = minigame_tile_buildname(myx, myy);
330 entity hit = snake_find_piece(minigame, newpos);
332 if(!snake_valid_tile(newpos) || (hit && hit.cnt && hit.team == head.team))
334 if(snake_alone(minigame))
336 minigame.minigame_flags = SNAKE_TURN_LOSS;
337 minigame_server_sendflags(minigame,MINIG_SF_UPDATE);
341 snake_add_score(minigame, head.team, -1);
342 snake_eat_team(minigame, head.team);
348 bool ate_mouse = (hit && !hit.cnt);
350 // move the body first, then set the new head position?
351 snake_move_body(minigame, head, ate_mouse);
353 if(head.netname) { strunzone(head.netname); }
354 head.netname = strzone(newpos);
355 minigame_server_sendflags(head,MINIG_SF_ALL);
357 // above check makes sure it's not our team
360 snake_eat_team(minigame, hit.team);
361 snake_add_score(minigame, head.team, 1);
366 if(hit.netname) { strunzone(hit.netname); }
369 snake_new_mouse(minigame);
374 void snake_move(entity minigame, entity player, string dxs, string dys )
376 if ( minigame.minigame_flags & SNAKE_TURN_MOVE )
379 //if ( snake_valid_tile(pos) )
380 //if ( snake_find_piece(minigame, pos) )
382 entity head = snake_find_head(minigame, player.team);
384 return; // their head is already dead
386 int dx = ((dxs) ? bound(-1, stof(dxs), 1) : 0);
387 int dy = ((dys) ? bound(-1, stof(dys), 1) : 0);
389 int myl = minigame_tile_letter(head.netname);
390 int myn = minigame_tile_number(head.netname);
392 entity check_piece = snake_find_piece(minigame, minigame_tile_buildname(myl + dx, myn + dy));
393 if(check_piece && check_piece.cnt == 2)
396 if(head.snake_dir == '0 0 0')
397 head.nextthink = time; // TODO: make sure this can't be exploited!
398 head.snake_dir_x = dx;
399 head.snake_dir_y = dy;
400 head.snake_dir_z = 0;
401 minigame_server_sendflags(head,MINIG_SF_UPDATE);
402 minigame_server_sendflags(minigame,MINIG_SF_UPDATE);
410 // required function, handle server side events
411 int snake_server_event(entity minigame, string event, ...)
417 snake_setup_pieces(minigame);
418 minigame.minigame_flags = SNAKE_TURN_MOVE;
419 minigame.snake_lost_teams = 0;
423 for(int i = 1; i <= SNAKE_TEAMS; ++i)
424 minigame.snake_lives[i] = autocvar_sv_minigames_snake_lives;
427 minigame.snake_lives[1] = 1;
434 while( (e = findentity(e, owner, minigame)) )
435 if(e.classname == "minigame_board_piece")
437 if(e.netname) { strunzone(e.netname); }
444 int pl_num = minigame_count_players(minigame);
446 if(pl_num >= SNAKE_TEAMS) { return false; }
448 int t = 1; // Team 1 by default
450 for(int i = 1; i <= SNAKE_TEAMS; ++i)
452 entity e = snake_get_player(minigame, i);
460 if(!snake_find_head(minigame, t) && !(minigame.snake_lost_teams & BIT(t)))
462 entity pl = ...(1,entity);
465 //pl.snake_lives = ((SNAKE_TEAMS > 1) ? autocvar_sv_minigames_snake_lives : 1);
466 // send score anyway, lives are set
467 pl.SendFlags |= SNAKE_SF_PLAYERSCORE;
469 minigame_setup_snake(minigame, t);
479 snake_move(minigame, ...(0,entity), ((...(1,int)) >= 2 ? argv(1) : string_null), ((...(1,int)) == 3 ? argv(2) : string_null));
487 entity sent = ...(0,entity);
489 if ( sent.classname == "minigame_board_piece" && (sf & MINIG_SF_UPDATE) )
491 WriteByte(MSG_ENTITY,sent.cnt);
492 WriteByte(MSG_ENTITY,sent.snake_tail);
493 WriteCoord(MSG_ENTITY,sent.snake_dir_x);
494 WriteCoord(MSG_ENTITY,sent.snake_dir_y);
496 else if ( sent.classname == "minigame_player" && (sf & SNAKE_SF_PLAYERSCORE ) )
498 WriteLong(MSG_ENTITY,sent.snake_score);
499 WriteByte(MSG_ENTITY,max(0, minigame.snake_lives[sent.team]));
501 else if ( sent.classname == "minigame" && (sf & MINIG_SF_UPDATE ) )
503 WriteByte(MSG_ENTITY,autocvar_sv_minigames_snake_wrap);
515 vector snake_boardpos; // HUD board position
516 vector snake_boardsize;// HUD board size
520 vector snake_teamcolor(int steam)
524 case 1: return '1 0 0';
525 case 2: return '0 0 1';
526 case 3: return '1 1 0';
527 case 4: return '1 0 1';
528 case 5: return '0 1 0';
529 case 6: return '0 1 1';
535 // Required function, draw the game board
536 void snake_hud_board(vector pos, vector mySize)
538 minigame_hud_fitsqare(pos, mySize);
539 snake_boardpos = pos;
540 snake_boardsize = mySize;
542 minigame_hud_simpleboard(pos,mySize,minigame_texture("snake/board"));
544 vector tile_size = minigame_hud_denormalize_size('1 1 0' / SNAKE_TILE_SIZE,pos,mySize);
548 FOREACH_MINIGAME_ENTITY(e)
550 if ( e.classname == "minigame_board_piece" )
552 tile_pos = minigame_tile_pos(e.netname,SNAKE_NUM_CNT,SNAKE_LET_CNT);
553 tile_pos = minigame_hud_denormalize(tile_pos,pos,mySize);
555 vector tile_color = snake_teamcolor(e.team);
557 string thepiece = "snake/mouse";
559 thepiece = "snake/body";
561 thepiece = "snake/tail";
564 int dx = minigame_tile_letter(e.netname) + e.snake_dir_x * 2;
565 int dy = minigame_tile_number(e.netname) + e.snake_dir_y * 2;
566 entity mouse = snake_find_piece(active_minigame, minigame_tile_buildname(dx, dy));
567 thepiece = "snake/head";
568 if(mouse && mouse.team != e.team)
571 int myx = minigame_tile_letter(e.netname);
572 int myy = minigame_tile_number(e.netname);
580 int newx = minigame_tile_letter(e.netname) + e.snake_dir_x;
581 int newy = minigame_tile_number(e.netname) + e.snake_dir_y;
582 string newpos = minigame_tile_buildname(newx, newy);
584 vector my_pos = minigame_tile_pos(newpos,SNAKE_NUM_CNT,SNAKE_LET_CNT);
585 my_pos = minigame_hud_denormalize(my_pos,pos,mySize);
587 drawrotpic(my_pos, myang, minigame_texture("snake/tongue"),
588 tile_size, tile_size/2, tile_color,
589 panel_fg_alpha, DRAWFLAG_NORMAL );
593 if(e.cnt == 1 || e.snake_tail)
595 vector thedir = e.snake_dir;
599 int thex = minigame_tile_letter(e.netname);
600 int they = minigame_tile_number(e.netname);
601 entity t = snake_find_cnt(active_minigame, minigame_self.team, e.cnt - 1);
602 int tx = minigame_tile_letter(t.netname);
603 int ty = minigame_tile_number(t.netname);
629 drawrotpic(tile_pos, theang, minigame_texture(thepiece),
630 tile_size, tile_size/2, tile_color,
631 panel_fg_alpha, DRAWFLAG_NORMAL );
635 minigame_drawpic_centered( tile_pos,
636 minigame_texture(thepiece),
637 tile_size, tile_color, panel_fg_alpha, DRAWFLAG_NORMAL );
642 if ( (active_minigame.minigame_flags & SNAKE_TURN_LOSS) || (active_minigame.minigame_flags & SNAKE_TURN_WIN) || (active_minigame.snake_lives[minigame_self.team] <= 0) )
644 int scores = minigame_self.snake_score;
646 vector winfs = hud_fontsize*2;
647 string scores_text, victory_text;
648 victory_text = "Game over!";
649 scores_text = strcat("Score: ", ftos(scores));
651 if(active_minigame.minigame_flags & SNAKE_TURN_WIN)
652 if((active_minigame.minigame_flags & SNAKE_TURN_TEAM) == minigame_self.team)
653 victory_text = "You win!";
654 if(active_minigame.snake_lives[minigame_self.team] <= 0)
655 victory_text = "You ran out of lives!";
657 vector win_pos = pos+eY*(mySize_y-winfs_y)/2;
659 win_sz = minigame_drawcolorcodedstring_wrapped(mySize_x,win_pos,
660 sprintf("%s %s", victory_text, scores_text),
661 winfs, 0, DRAWFLAG_NORMAL, 0.5);
663 drawfill(win_pos-eY*hud_fontsize_y,win_sz+2*eY*hud_fontsize_y,'0.3 0.3 1',0.8,DRAWFLAG_ADDITIVE);
665 minigame_drawcolorcodedstring_wrapped(mySize_x,win_pos,
666 sprintf("%s %s", victory_text, scores_text),
667 winfs, panel_fg_alpha, DRAWFLAG_NORMAL, 0.5);
672 // Required function, draw the game status panel
673 void snake_hud_status(vector pos, vector mySize)
677 ts = minigame_drawstring_wrapped(mySize_x,pos,active_minigame.descriptor.message,
678 hud_fontsize * 2, '0.25 0.47 0.72', panel_fg_alpha, DRAWFLAG_NORMAL,0.5);
683 vector player_fontsize = hud_fontsize * 1.75;
684 ts_y = ( mySize_y - 2*player_fontsize_y ) / SNAKE_TEAMS;
687 vector tile_size = '48 48 0';
690 if ( minigame_self.team > 1 )
691 mypos_y += player_fontsize_y + (ts_y * (minigame_self.team - 1));
692 drawfill(mypos,eX*mySize_x+eY*player_fontsize_y,'1 1 1',0.5,DRAWFLAG_ADDITIVE);
693 mypos_y += player_fontsize_y;
694 drawfill(mypos,eX*mySize_x+eY*tile_size_y,'1 1 1',0.25,DRAWFLAG_ADDITIVE);
697 FOREACH_MINIGAME_ENTITY(e)
699 if ( e.classname == "minigame_player" )
703 mypos_y += player_fontsize_y + (ts_y * (e.team - 1));
704 minigame_drawcolorcodedstring_trunc(mySize_x,mypos,
705 GetPlayerName(e.minigame_playerslot-1),
706 player_fontsize, panel_fg_alpha, DRAWFLAG_NORMAL);
708 vector tile_color = snake_teamcolor(e.team);
710 mypos_y += player_fontsize_y;
712 minigame_texture("snake/head"),
713 tile_size * 0.7, tile_color, panel_fg_alpha, DRAWFLAG_NORMAL );
715 mypos_x += tile_size_x;
717 drawstring(mypos,ftos(e.snake_score),tile_size,
718 '0.7 0.84 1', panel_fg_alpha, DRAWFLAG_NORMAL);
720 mypos_x += tile_size_x;
722 drawstring(mypos,strcat("1UP: ", ftos(active_minigame.snake_lives[e.team])),tile_size * 0.6,
723 '0.7 0.84 1', panel_fg_alpha, DRAWFLAG_NORMAL);
728 // Turn a set of flags into a help message
729 string snake_turn_to_string(int turnflags)
731 if ( turnflags & SNAKE_TURN_LOSS )
732 return _("Game over!");
734 if ( turnflags & SNAKE_TURN_WIN )
736 if ( (turnflags&SNAKE_TURN_TEAM) != minigame_self.team )
737 return _("You ran out of lives!");
738 return _("You win!");
741 if(active_minigame.snake_lives[minigame_self.team] <= 0)
742 return _("You ran out of lives!");
744 if ( (snake_find_head(active_minigame, minigame_self.team)).snake_dir == '0 0 0' )
745 return _("Press an arrow key to begin the game");
747 if ( turnflags & SNAKE_TURN_MOVE )
749 return _("Avoid the snake's body, collect the mice!");
751 return _("Avoid the screen edges and the snake's body, collect the mice!");
756 // Make the correct move
757 void snake_set_direction(entity minigame, int dx, int dy)
759 //if ( minigame.minigame_flags == SNAKE_TURN_MOVE )
761 minigame_cmd("move ",ftos(dx), " ", ftos(dy));
765 // Required function, handle client events
766 int snake_client_event(entity minigame, string event, ...)
772 minigame.message = snake_turn_to_string(minigame.minigame_flags);
777 //if((minigame.minigame_flags & SNAKE_TURN_TEAM) == minigame_self.team)
779 switch ( ...(0,int) )
782 case K_KP_RIGHTARROW:
783 snake_set_direction(minigame, 1, 0);
787 snake_set_direction(minigame, -1, 0);
791 snake_set_direction(minigame, 0, 1);
795 snake_set_direction(minigame, 0, -1);
802 case "network_receive":
804 entity sent = ...(0,entity);
806 if ( sent.classname == "minigame" )
808 if ( sf & MINIG_SF_UPDATE )
810 snake_wrap = ReadByte();
811 sent.message = snake_turn_to_string(sent.minigame_flags);
812 //if ( sent.minigame_flags & minigame_self.team )
816 else if(sent.classname == "minigame_board_piece")
818 if(sf & MINIG_SF_UPDATE)
820 sent.cnt = ReadByte();
821 sent.snake_tail = ReadByte();
822 sent.snake_dir_x = ReadCoord();
823 sent.snake_dir_y = ReadCoord();
824 sent.snake_dir_z = 0;
827 else if ( sent.classname == "minigame_player" && (sf & SNAKE_SF_PLAYERSCORE ) )
829 sent.snake_score = ReadLong();
830 minigame.snake_lives[sent.team] = ReadByte();