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authorPierre Frisch2011-12-22 07:25:50 -0800
committerValerio Virgillito2012-01-27 11:18:17 -0800
commitb89a7ee8b956c96a1dcee995ea840feddc5d4b27 (patch)
tree0f3136ab0ecdbbbed6a83576581af0a53124d6f1 /js/helper-classes/RDGE/src/core/script/box.js
parent2401f05d1f4b94d45e4568b81fc73e67b969d980 (diff)
downloadninja-b89a7ee8b956c96a1dcee995ea840feddc5d4b27.tar.gz
First commit of Ninja to ninja-internal
Signed-off-by: Valerio Virgillito <rmwh84@motorola.com>
Diffstat (limited to 'js/helper-classes/RDGE/src/core/script/box.js')
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1/* <copyright>
2This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
3No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
4(c) Copyright 2011 Motorola Mobility, Inc. All Rights Reserved.
5</copyright> */
6
7MAX_VAL = 1e+38;
8
9function box()
10{
11 this.min = [MAX_VAL, MAX_VAL, MAX_VAL];
12 this.max = [-MAX_VAL, -MAX_VAL, -MAX_VAL];
13}
14
15box.prototype.addBox = function(a)
16{
17 this.min = vec3.min( this.min, a.min );
18 this.max = vec3.max( this.max, a.max );
19// this.min = vec3.min( this.min, a.min );
20// this.max = vec3.max( this.max, a.max );
21}
22
23box.prototype.addVec3 = function(a)
24{
25 this.min = vec3.min( this.min, a );
26 this.max = vec3.max( this.max, a );
27}
28
29box.prototype.set = function(min, max)
30{
31 this.min[0] = min[0];
32 this.min[1] = min[1];
33 this.min[2] = min[2];
34 this.max[0] = max[0];
35 this.max[1] = max[1];
36 this.max[2] = max[2];
37}
38
39box.prototype.reset = function()
40{
41 this.min[0] = MAX_VAL;
42 this.min[1] = MAX_VAL;
43 this.min[2] = MAX_VAL;
44 this.max[0] = -MAX_VAL;
45 this.max[1] = -MAX_VAL;
46 this.max[2] = -MAX_VAL;
47}
48
49box.prototype.getCenter = function()
50{
51 return [0.5*(this.min[0]+this.max[0]), 0.5*(this.min[1]+this.max[1]), 0.5*(this.min[2]+this.max[2])];
52}
53
54box.prototype.isVisible = function(frustum)
55{
56 var center = this.getCenter();
57 var radius = vec3.distance( this.max, center );
58 // var diag = vec3.sub( this.max, center );
59
60 var i = 0;
61 while(i < frustum.length) {
62 var plane = frustum[i];
63 var dist = vec3.dot( plane, center ) + plane[3];
64 if( dist < -radius ) {
65 return false;
66 }
67 i++;
68 }
69
70 return true;
71}
72
73box.prototype.isValid = function()
74{
75 return !(this.min[0] > this.max[0] || this.min[1] > this.max[1] || this.min[2] > this.max[2]);
76}
77
78box.prototype.transform = function(mat) {
79 var out = new box();
80 var pts = [];
81 pts.push( [ this.min[0], this.min[1], this.min[2] ] );
82 pts.push( [ this.min[0], this.max[1], this.min[2] ] );
83 pts.push( [ this.max[0], this.max[1], this.min[2] ] );
84 pts.push( [ this.max[0], this.min[1], this.min[2] ] );
85 pts.push( [ this.min[0], this.min[1], this.max[2] ] );
86 pts.push( [ this.min[0], this.max[1], this.max[2] ] );
87 pts.push( [ this.max[0], this.max[1], this.max[2] ] );
88 pts.push( [ this.max[0], this.min[1], this.max[2] ] );
89
90 var i = pts.length - 1;
91 do {
92 out.addVec3( mat4.transformPoint( mat, pts[i] ) );
93 } while(i--);
94
95 return out;
96}
97/*
98box.prototype.transform = function(mat) {
99 var newBox = new box();
100 var e, f;
101
102 newBox.b[0] = mat[12]; newBox.b[1] = mat[13]; newBox.b[2] = mat[14];
103 newBox.t[0] = mat[12]; newBox.t[1] = mat[13]; newBox.t[2] = mat[14];
104
105 e = mat[0] * this.min[0]; f = mat[0] * this.max[0];
106 newBox.b[0] += (e < f) ? e : f;
107 newBox.t[0] += (e < f) ? f : e;
108
109 e = mat[4] * this.min[1]; f = mat[4] * this.max[1];
110 newBox.b[0] += (e < f) ? e : f;
111 newBox.t[0] += (e < f) ? f : e;
112
113 e = mat[8] * this.min[2]; f = mat[8] * this.max[2];
114 newBox.b[0] += (e < f) ? e : f;
115 newBox.t[0] += (e < f) ? f : e;
116
117 e = mat[1] * this.min[0]; f = mat[1] * this.max[0];
118 newBox.b[1] += (e < f) ? e : f;
119 newBox.t[1] += (e < f) ? f : e;
120
121 e = mat[5] * this.min[1]; f = mat[5] * this.max[1];
122 newBox.b[1] += (e < f) ? e : f;
123 newBox.t[1] += (e < f) ? f : e;
124
125 e = mat[9] * this.min[2]; f = mat[9] * this.max[2];
126 newBox.b[1] += (e < f) ? e : f;
127 newBox.t[1] += (e < f) ? f : e;
128
129 e = mat[2] * this.min[0]; f = mat[2] * this.max[0];
130 newBox.b[2] += (e < f) ? e : f;
131 newBox.t[2] += (e < f) ? f : e;
132
133 e = mat[6] * this.min[1]; f = mat[6] * this.max[1];
134 newBox.b[2] += (e < f) ? e : f;
135 newBox.t[2] += (e < f) ? f : e;
136
137 e = mat[10] * this.min[2]; f = mat[10] * this.max[2];
138 newBox.b[2] += (e < f) ? e : f;
139 newBox.t[2] += (e < f) ? f : e;
140
141 return newBox;
142}
143*/ \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-05 05:23:21 +0000