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
|
-module(btl_action).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% TYPES %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-record
(
move,
{
path :: list(shr_direction:enum())
}
).
-record
(
switch_weapon,
{
}
).
-record
(
attack,
{
target_ix :: non_neg_integer()
}
).
-type category() :: ('move' | 'switch_weapon' | 'attack' | 'nothing').
-opaque type() :: (#move{} | #switch_weapon{} | #attack{}).
-export_type([category/0, type/0]).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% EXPORTS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-export
(
[
maybe_decode_move/1,
maybe_decode_weapon_switch/1,
maybe_decode_attack/1,
can_follow/2
]
).
-export
(
[
get_path/1,
get_target_ix/1,
get_category/1
]
).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% LOCAL FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% EXPORTED FUNCTIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-spec maybe_decode_move (list(shr_direction:type())) -> list(type()).
maybe_decode_move ([]) -> [];
maybe_decode_move (PathInBinary) ->
Path = lists:map(fun shr_direction:decode/1, PathInBinary),
[#move{ path = Path }].
-spec maybe_decode_attack (integer()) -> list(type()).
maybe_decode_attack (TargetIX) when (TargetIX < 0) -> [];
maybe_decode_attack (TargetIX) -> [#attack{ target_ix = TargetIX }].
-spec maybe_decode_weapon_switch (boolean()) -> list(type()).
maybe_decode_weapon_switch (false) -> [];
maybe_decode_weapon_switch (true) -> [#switch_weapon{}].
-spec can_follow (category(), category()) -> boolean().
can_follow (nothing, attack) -> true;
can_follow (nothing, switch_weapon) -> true;
can_follow (nothing, move) -> true;
can_follow (move, switch_weapon) -> true;
can_follow (move, attack) -> true;
can_follow (_, _) -> false.
-spec get_path (type()) -> list(shr_direction:type()).
get_path (Action) when is_record(Action, move) ->
Action#move.path;
get_path (_) ->
[].
-spec get_target_ix (type()) -> non_neg_integer().
get_target_ix (Action) when is_record(Action, attack) ->
Action#attack.target_ix;
get_target_ix (_) ->
[].
-spec get_category (type()) -> category().
get_category (Action) when is_record(Action, attack) -> attack;
get_category (Action) when is_record(Action, move) -> move;
get_category (Action) when is_record(Action, switch_weapon) -> switch_weapon.
|
