blob: 464bae58dae1e11dd163134b9e7ef2a691e5e0c5 (
plain)
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
|
;;; Copyright (C) 2025 Gene Pasquet
;;;
;;; 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 3 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 <https://www.gnu.org/licenses/>.
(import enum [Enum]
math [sqrt])
(defclass Direction [Enum]
(setv UP "UP")
(setv DOWN "DOWN")
(setv LEFT "LEFT")
(setv RIGHT "RIGHT")
(defn [staticmethod] from-move [move]
#((.x-from-move Direction move)
(.y-from-move Direction move)))
(defn [staticmethod] x-from-move [move]
(if (>= (get move 0) 0)
Direction.RIGHT
Direction.LEFT))
(defn [staticmethod] y-from-move [move]
(if (>= (get move 0) 0)
Direction.DOWN
Direction.UP))
(defn [staticmethod] x-between-points [point1 point2]
(let [delta-x (abs (- (get point1 0) (get point2 0)))]
(if (>= delta-x 0)
Direction.RIGHT
Direction.LEFT))))
(defn neg [value]
(* -1 value))
(defn invert [move]
#((neg (get move 0))
(neg (get move 1))))
(defn merge-moves [moves]
(let [end-move #(0 0)]
(for [move moves]
(setv end-move
#((+ (get end-move 0) (get move 0))
(+ (get end-move 1) (get move 1)))))
end-move))
(defn sub-points [point1 point2]
#((- (get point2 0) (get point1 0))
(- (get point2 1) (get point2 1))))
(defn add-tuples [tup1 tup2]
#((+ (get tup1 0) (get tup2 0))
(+ (get tup1 1) (get tup2 1))))
(defn normalise-tuple [tup min-tup max-tup]
#((min (get max-tup 0)
(max (get min-tup 0) (get tup 0)))
(min (get max-tup 1)
(max (get min-tup 1) (get tup 1)))))
(defn null-tuple [tup]
(and (= (get tup 0) 0)
(= (get tup 1) 0)))
(defn distance [point1 point2]
(sqrt (+ (** (- (get point1 0) (get point2 0)) 2)
(** (- (get point1 1) (get point2 1)) 2))))
|
