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
|
var assert = require("assert")
var vec2 = require("../public/assets/javascripts/rectangles/models/vec2.js")
describe('vec2', function(){
var vec = new vec2(0, 10)
describe('#intersects()', function(){
it('intersects itself', function(){
assert.equal(true, vec.intersects( new vec2(0, 10) ));
})
it('intersects w/ same startpoint (shorter)', function(){
assert.equal(true, vec.intersects( new vec2(0, 5) ));
})
it('intersects w/ same startpoint (longer)', function(){
assert.equal(true, vec.intersects( new vec2(0, 15) ));
})
it('intersects w/ same endpoint (shorter)', function(){
assert.equal(true, vec.intersects( new vec2(5, 10) ));
})
it('intersects w/ same endpoint (longer)', function(){
assert.equal(true, vec.intersects( new vec2(-5, 10) ));
})
it('intersects when contained', function(){
assert.equal(true, vec.intersects( new vec2(-5, 15) ));
})
it('does not intersect when before', function(){
assert.equal(false, vec.intersects( new vec2(-10, -5) ));
})
it('does not intersect when after', function(){
assert.equal(false, vec.intersects( new vec2(15, 20) ));
})
it('intersects when only startpoint matches', function(){
assert.equal(true, vec.intersects( new vec2(-5, 0) ));
})
it('intersects when only endpoint matches', function(){
assert.equal(true, vec.intersects( new vec2(10, 15) ));
})
})
describe('#intersection()', function(){
it('intersects from left', function(){
var inter = vec.intersection( new vec2( 5, 15 ) )
assert.equal(true, inter.eq( new vec2(5, 10) ))
})
it('intersects from right', function(){
var inter = vec.intersection( new vec2( -5, 5 ) )
assert.equal(true, inter.eq( new vec2(0, 5) ))
})
it('intersects inner', function(){
var inter = vec.intersection( new vec2( 2, 5 ) )
assert.equal(true, inter.eq( new vec2(2, 5) ))
})
it('intersects outer', function(){
var inter = vec.intersection( new vec2( -5, 15 ) )
assert.equal(true, inter.eq( new vec2(0, 10) ))
})
})
describe('#contains()', function(){
it('contains itself', function(){
assert.equal(true, vec.contains( 0 ));
assert.equal(true, vec.contains( 5 ));
assert.equal(true, vec.contains( 10 ));
})
it('does not contain before or after', function(){
assert.equal(false, vec.contains( -5 ));
assert.equal(false, vec.contains( 15 ));
})
})
describe('#containsCenter()', function(){
it('containsCenter itself', function(){
assert.equal(true, vec.containsCenter( 5 ));
})
it('does not containsCenter its endpoints', function(){
assert.equal(false, vec.containsCenter( 0 ));
assert.equal(false, vec.containsCenter( 10 ));
})
})
describe('#containsDisc()', function(){
it('containsDisc within a radius', function(){
assert.equal(true, vec.containsDisc( 2, 2 ));
assert.equal(true, vec.containsDisc( 5, 2 ));
assert.equal(true, vec.containsDisc( 7, 2 ));
})
it('does not containsDisc its endpoints', function(){
assert.equal(false, vec.containsDisc( 0, 2 ));
assert.equal(false, vec.containsDisc( 1, 2 ));
assert.equal(false, vec.containsDisc( 9, 2 ));
assert.equal(false, vec.containsDisc( 10, 2 ));
})
it('does not containsDisc outside points', function(){
assert.equal(false, vec.containsDisc( -5, 2 ));
assert.equal(false, vec.containsDisc( -2, 2 ));
assert.equal(false, vec.containsDisc( 12, 2 ));
assert.equal(false, vec.containsDisc( 15, 2 ));
})
})
describe('#clampDisc()', function(){
it('clampDisc clamps on the left', function(){
assert.equal(2, vec.clampDisc( -1, 2 ));
assert.equal(2, vec.clampDisc( 0, 2 ));
assert.equal(2, vec.clampDisc( 1, 2 ));
assert.equal(2, vec.clampDisc( 2, 2 ));
})
it('clampDisc clamps on the right', function(){
assert.equal(8, vec.clampDisc( 8, 2 ));
assert.equal(8, vec.clampDisc( 9, 2 ));
assert.equal(8, vec.clampDisc( 10, 2 ));
assert.equal(8, vec.clampDisc( 11, 2 ));
})
it('clampDisc doesnt clamp in the middle', function(){
assert.equal(3, vec.clampDisc( 3, 2 ));
assert.equal(4, vec.clampDisc( 4, 2 ));
assert.equal(5, vec.clampDisc( 5, 2 ));
})
})
})
|
