| 1 | /**
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| 2 | * @author bhouston / http://exocortex.com
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| 3 | */
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| 4 |
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| 5 | module( "Box2" );
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| 6 |
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| 7 | test( "constructor", function() {
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| 8 | var a = new THREE.Box2();
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| 9 | ok( a.min.equals( posInf2 ), "Passed!" );
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| 10 | ok( a.max.equals( negInf2 ), "Passed!" );
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| 11 |
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| 12 | a = new THREE.Box2( zero2.clone(), zero2.clone() );
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| 13 | ok( a.min.equals( zero2 ), "Passed!" );
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| 14 | ok( a.max.equals( zero2 ), "Passed!" );
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| 15 |
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| 16 | a = new THREE.Box2( zero2.clone(), one2.clone() );
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| 17 | ok( a.min.equals( zero2 ), "Passed!" );
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| 18 | ok( a.max.equals( one2 ), "Passed!" );
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| 19 | });
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| 20 |
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| 21 | test( "copy", function() {
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| 22 | var a = new THREE.Box2( zero2.clone(), one2.clone() );
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| 23 | var b = new THREE.Box2().copy( a );
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| 24 | ok( b.min.equals( zero2 ), "Passed!" );
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| 25 | ok( b.max.equals( one2 ), "Passed!" );
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| 26 |
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| 27 | // ensure that it is a true copy
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| 28 | a.min = zero2;
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| 29 | a.max = one2;
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| 30 | ok( b.min.equals( zero2 ), "Passed!" );
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| 31 | ok( b.max.equals( one2 ), "Passed!" );
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| 32 | });
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| 33 |
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| 34 | test( "set", function() {
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| 35 | var a = new THREE.Box2();
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| 36 |
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| 37 | a.set( zero2, one2 );
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| 38 | ok( a.min.equals( zero2 ), "Passed!" );
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| 39 | ok( a.max.equals( one2 ), "Passed!" );
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| 40 | });
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| 41 |
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| 42 | test( "empty/makeEmpty", function() {
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| 43 | var a = new THREE.Box2();
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| 44 |
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| 45 | ok( a.empty(), "Passed!" );
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| 46 |
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| 47 | var a = new THREE.Box2( zero2.clone(), one2.clone() );
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| 48 | ok( ! a.empty(), "Passed!" );
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| 49 |
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| 50 | a.makeEmpty();
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| 51 | ok( a.empty(), "Passed!" );
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| 52 | });
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| 53 |
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| 54 | test( "center", function() {
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| 55 | var a = new THREE.Box2( zero2.clone(), zero2.clone() );
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| 56 |
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| 57 | ok( a.center().equals( zero2 ), "Passed!" );
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| 58 |
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| 59 | a = new THREE.Box2( zero2, one2 );
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| 60 | var midpoint = one2.clone().multiplyScalar( 0.5 );
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| 61 | ok( a.center().equals( midpoint ), "Passed!" );
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| 62 | });
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| 63 |
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| 64 | test( "size", function() {
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| 65 | var a = new THREE.Box2( zero2.clone(), zero2.clone() );
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| 66 |
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| 67 | ok( a.size().equals( zero2 ), "Passed!" );
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| 68 |
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| 69 | a = new THREE.Box2( zero2.clone(), one2.clone() );
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| 70 | ok( a.size().equals( one2 ), "Passed!" );
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| 71 | });
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| 72 |
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| 73 | test( "expandByPoint", function() {
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| 74 | var a = new THREE.Box2( zero2.clone(), zero2.clone() );
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| 75 |
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| 76 | a.expandByPoint( zero2 );
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| 77 | ok( a.size().equals( zero2 ), "Passed!" );
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| 78 |
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| 79 | a.expandByPoint( one2 );
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| 80 | ok( a.size().equals( one2 ), "Passed!" );
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| 81 |
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| 82 | a.expandByPoint( one2.clone().negate() );
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| 83 | ok( a.size().equals( one2.clone().multiplyScalar( 2 ) ), "Passed!" );
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| 84 | ok( a.center().equals( zero2 ), "Passed!" );
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| 85 | });
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| 86 |
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| 87 | test( "expandByVector", function() {
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| 88 | var a = new THREE.Box2( zero2.clone(), zero2.clone() );
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| 89 |
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| 90 | a.expandByVector( zero2 );
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| 91 | ok( a.size().equals( zero2 ), "Passed!" );
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| 92 |
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| 93 | a.expandByVector( one2 );
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| 94 | ok( a.size().equals( one2.clone().multiplyScalar( 2 ) ), "Passed!" );
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| 95 | ok( a.center().equals( zero2 ), "Passed!" );
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| 96 | });
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| 97 |
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| 98 | test( "expandByScalar", function() {
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| 99 | var a = new THREE.Box2( zero2.clone(), zero2.clone() );
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| 100 |
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| 101 | a.expandByScalar( 0 );
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| 102 | ok( a.size().equals( zero2 ), "Passed!" );
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| 103 |
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| 104 | a.expandByScalar( 1 );
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| 105 | ok( a.size().equals( one2.clone().multiplyScalar( 2 ) ), "Passed!" );
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| 106 | ok( a.center().equals( zero2 ), "Passed!" );
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| 107 | });
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| 108 |
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| 109 | test( "containsPoint", function() {
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| 110 | var a = new THREE.Box2( zero2.clone(), zero2.clone() );
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| 111 |
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| 112 | ok( a.containsPoint( zero2 ), "Passed!" );
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| 113 | ok( ! a.containsPoint( one2 ), "Passed!" );
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| 114 |
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| 115 | a.expandByScalar( 1 );
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| 116 | ok( a.containsPoint( zero2 ), "Passed!" );
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| 117 | ok( a.containsPoint( one2 ), "Passed!" );
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| 118 | ok( a.containsPoint( one2.clone().negate() ), "Passed!" );
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| 119 | });
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| 120 |
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| 121 | test( "containsBox", function() {
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| 122 | var a = new THREE.Box2( zero2.clone(), zero2.clone() );
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| 123 | var b = new THREE.Box2( zero2.clone(), one2.clone() );
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| 124 | var c = new THREE.Box2( one2.clone().negate(), one2.clone() );
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| 125 |
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| 126 | ok( a.containsBox( a ), "Passed!" );
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| 127 | ok( ! a.containsBox( b ), "Passed!" );
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| 128 | ok( ! a.containsBox( c ), "Passed!" );
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| 129 |
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| 130 | ok( b.containsBox( a ), "Passed!" );
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| 131 | ok( c.containsBox( a ), "Passed!" );
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| 132 | ok( ! b.containsBox( c ), "Passed!" );
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| 133 | });
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| 134 |
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| 135 | test( "getParameter", function() {
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| 136 | var a = new THREE.Box2( zero2.clone(), one2.clone() );
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| 137 | var b = new THREE.Box2( one2.clone().negate(), one2.clone() );
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| 138 |
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| 139 | ok( a.getParameter( new THREE.Vector2( 0, 0 ) ).equals( new THREE.Vector2( 0, 0 ) ), "Passed!" );
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| 140 | ok( a.getParameter( new THREE.Vector2( 1, 1 ) ).equals( new THREE.Vector2( 1, 1 ) ), "Passed!" );
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| 141 |
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| 142 | ok( b.getParameter( new THREE.Vector2( -1, -1 ) ).equals( new THREE.Vector2( 0, 0 ) ), "Passed!" );
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| 143 | ok( b.getParameter( new THREE.Vector2( 0, 0 ) ).equals( new THREE.Vector2( 0.5, 0.5 ) ), "Passed!" );
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| 144 | ok( b.getParameter( new THREE.Vector2( 1, 1 ) ).equals( new THREE.Vector2( 1, 1 ) ), "Passed!" );
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| 145 | });
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| 146 |
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| 147 | test( "clampPoint", function() {
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| 148 | var a = new THREE.Box2( zero2.clone(), zero2.clone() );
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| 149 | var b = new THREE.Box2( one2.clone().negate(), one2.clone() );
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| 150 |
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| 151 | ok( a.clampPoint( new THREE.Vector2( 0, 0 ) ).equals( new THREE.Vector2( 0, 0 ) ), "Passed!" );
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| 152 | ok( a.clampPoint( new THREE.Vector2( 1, 1 ) ).equals( new THREE.Vector2( 0, 0 ) ), "Passed!" );
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| 153 | ok( a.clampPoint( new THREE.Vector2( -1, -1 ) ).equals( new THREE.Vector2( 0, 0 ) ), "Passed!" );
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| 154 |
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| 155 | ok( b.clampPoint( new THREE.Vector2( 2, 2 ) ).equals( new THREE.Vector2( 1, 1 ) ), "Passed!" );
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| 156 | ok( b.clampPoint( new THREE.Vector2( 1, 1 ) ).equals( new THREE.Vector2( 1, 1 ) ), "Passed!" );
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| 157 | ok( b.clampPoint( new THREE.Vector2( 0, 0 ) ).equals( new THREE.Vector2( 0, 0 ) ), "Passed!" );
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| 158 | ok( b.clampPoint( new THREE.Vector2( -1, -1 ) ).equals( new THREE.Vector2( -1, -1 ) ), "Passed!" );
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| 159 | ok( b.clampPoint( new THREE.Vector2( -2, -2 ) ).equals( new THREE.Vector2( -1, -1 ) ), "Passed!" );
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| 160 | });
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| 161 |
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| 162 | test( "distanceToPoint", function() {
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| 163 | var a = new THREE.Box2( zero2.clone(), zero2.clone() );
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| 164 | var b = new THREE.Box2( one2.clone().negate(), one2.clone() );
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| 165 |
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| 166 | ok( a.distanceToPoint( new THREE.Vector2( 0, 0 ) ) == 0, "Passed!" );
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| 167 | ok( a.distanceToPoint( new THREE.Vector2( 1, 1 ) ) == Math.sqrt( 2 ), "Passed!" );
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| 168 | ok( a.distanceToPoint( new THREE.Vector2( -1, -1 ) ) == Math.sqrt( 2 ), "Passed!" );
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| 169 |
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| 170 | ok( b.distanceToPoint( new THREE.Vector2( 2, 2 ) ) == Math.sqrt( 2 ), "Passed!" );
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| 171 | ok( b.distanceToPoint( new THREE.Vector2( 1, 1 ) ) == 0, "Passed!" );
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| 172 | ok( b.distanceToPoint( new THREE.Vector2( 0, 0 ) ) == 0, "Passed!" );
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| 173 | ok( b.distanceToPoint( new THREE.Vector2( -1, -1 ) ) == 0, "Passed!" );
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| 174 | ok( b.distanceToPoint( new THREE.Vector2( -2, -2 ) ) == Math.sqrt( 2 ), "Passed!" );
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| 175 | });
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| 176 |
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| 177 | test( "distanceToPoint", function() {
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| 178 | var a = new THREE.Box2( zero2.clone(), zero2.clone() );
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| 179 | var b = new THREE.Box2( one2.clone().negate(), one2.clone() );
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| 180 |
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| 181 | ok( a.distanceToPoint( new THREE.Vector2( 0, 0 ) ) == 0, "Passed!" );
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| 182 | ok( a.distanceToPoint( new THREE.Vector2( 1, 1 ) ) == Math.sqrt( 2 ), "Passed!" );
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| 183 | ok( a.distanceToPoint( new THREE.Vector2( -1, -1 ) ) == Math.sqrt( 2 ), "Passed!" );
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| 184 |
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| 185 | ok( b.distanceToPoint( new THREE.Vector2( 2, 2 ) ) == Math.sqrt( 2 ), "Passed!" );
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| 186 | ok( b.distanceToPoint( new THREE.Vector2( 1, 1 ) ) == 0, "Passed!" );
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| 187 | ok( b.distanceToPoint( new THREE.Vector2( 0, 0 ) ) == 0, "Passed!" );
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| 188 | ok( b.distanceToPoint( new THREE.Vector2( -1, -1 ) ) == 0, "Passed!" );
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| 189 | ok( b.distanceToPoint( new THREE.Vector2( -2, -2 ) ) == Math.sqrt( 2 ), "Passed!" );
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| 190 | });
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| 191 |
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| 192 | test( "isIntersectionBox", function() {
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| 193 | var a = new THREE.Box2( zero2.clone(), zero2.clone() );
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| 194 | var b = new THREE.Box2( zero2.clone(), one2.clone() );
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| 195 | var c = new THREE.Box2( one2.clone().negate(), one2.clone() );
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| 196 |
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| 197 | ok( a.isIntersectionBox( a ), "Passed!" );
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| 198 | ok( a.isIntersectionBox( b ), "Passed!" );
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| 199 | ok( a.isIntersectionBox( c ), "Passed!" );
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| 200 |
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| 201 | ok( b.isIntersectionBox( a ), "Passed!" );
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| 202 | ok( c.isIntersectionBox( a ), "Passed!" );
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| 203 | ok( b.isIntersectionBox( c ), "Passed!" );
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| 204 |
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| 205 | b.translate( new THREE.Vector2( 2, 2 ) );
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| 206 | ok( ! a.isIntersectionBox( b ), "Passed!" );
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| 207 | ok( ! b.isIntersectionBox( a ), "Passed!" );
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| 208 | ok( ! b.isIntersectionBox( c ), "Passed!" );
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| 209 | });
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| 210 |
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| 211 | test( "intersect", function() {
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| 212 | var a = new THREE.Box2( zero2.clone(), zero2.clone() );
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| 213 | var b = new THREE.Box2( zero2.clone(), one2.clone() );
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| 214 | var c = new THREE.Box2( one2.clone().negate(), one2.clone() );
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| 215 |
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| 216 | ok( a.clone().intersect( a ).equals( a ), "Passed!" );
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| 217 | ok( a.clone().intersect( b ).equals( a ), "Passed!" );
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| 218 | ok( b.clone().intersect( b ).equals( b ), "Passed!" );
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| 219 | ok( a.clone().intersect( c ).equals( a ), "Passed!" );
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| 220 | ok( b.clone().intersect( c ).equals( b ), "Passed!" );
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| 221 | ok( c.clone().intersect( c ).equals( c ), "Passed!" );
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| 222 | });
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| 223 |
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| 224 | test( "union", function() {
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| 225 | var a = new THREE.Box2( zero2.clone(), zero2.clone() );
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| 226 | var b = new THREE.Box2( zero2.clone(), one2.clone() );
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| 227 | var c = new THREE.Box2( one2.clone().negate(), one2.clone() );
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| 228 |
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| 229 | ok( a.clone().union( a ).equals( a ), "Passed!" );
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| 230 | ok( a.clone().union( b ).equals( b ), "Passed!" );
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| 231 | ok( a.clone().union( c ).equals( c ), "Passed!" );
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| 232 | ok( b.clone().union( c ).equals( c ), "Passed!" );
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| 233 | });
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| 234 |
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| 235 | test( "translate", function() {
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| 236 | var a = new THREE.Box2( zero2.clone(), zero2.clone() );
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| 237 | var b = new THREE.Box2( zero2.clone(), one2.clone() );
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| 238 | var c = new THREE.Box2( one2.clone().negate(), one2.clone() );
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| 239 | var d = new THREE.Box2( one2.clone().negate(), zero2.clone() );
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| 240 |
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| 241 | ok( a.clone().translate( one2 ).equals( new THREE.Box2( one2, one2 ) ), "Passed!" );
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| 242 | ok( a.clone().translate( one2 ).translate( one2.clone().negate() ).equals( a ), "Passed!" );
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| 243 | ok( d.clone().translate( one2 ).equals( b ), "Passed!" );
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| 244 | ok( b.clone().translate( one2.clone().negate() ).equals( d ), "Passed!" );
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| 245 | }); |
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