Artifact 95ed42a2d89e1fef9a37a76c14dc1db755211492
1 import util;
2 import game;
3 import driver;
4 import core.stdc.signal;
5
6 class NilOutput : GameObserver
7 {
8 this(in Game g) {}
9 override void on_game_changed(char c, in Game g, bool finished) {}
10 }
11
12 class StdOutput : GameObserver
13 {
14 this(in Game g) {}
15 override void on_game_changed(char c, in Game g, bool finished)
16 {
17 stdout.write(c);
18 stdout.flush();
19 }
20 }
21
22 class GuardedOutput : GameObserver
23 {
24 this(in Game g)
25 {
26 setup_sigint_handling();
27 score_log ~= g.score;
28 flushed = false;
29 }
30
31 override void on_game_changed(char c, in Game g, bool finished)
32 {
33 if(flushed)
34 return;
35
36 log ~= c;
37 score_log ~= g.score;
38 if(finished || log.length+1==g.map.W*g.map.H)
39 flush();
40 if(log.length+1==g.map.W*g.map.H)
41 application_exit();
42 }
43
44 private:
45 string log;
46 long[] score_log;
47 bool flushed;
48
49 void flush()
50 {
51 if(flushed)
52 return;
53
54 Tuple!(long, int) cand;
55 cand[0] = long.min;
56
57 for(int i=0; i<score_log.length; ++i)
58 if(cand[0] < score_log[i])
59 cand = tuple(score_log[i],i);
60
61 std.c.stdio.printf("%.*sA\n", cand[1], log.ptr);
62 std.c.stdio.fflush(std.c.stdio.stdout);
63 flushed = true;
64 }
65
66 private:
67 static __gshared GuardedOutput g_output;
68
69 void setup_sigint_handling()
70 {
71 assert(g_output is null);
72 g_output = this;
73 extern(C) static void catch_sigint(int) { g_output.flush(); application_exit(); }
74 core.stdc.signal.signal(SIGINT, &catch_sigint);
75 }
76 }