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1// Copyright (c) 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5function verifyWorldDescription(description) {
6  var shapes = description['shapes'];
7  var bodies = description['bodies'];
8  //var constraints = description['constraints'];
9
10  var i;
11  var r;
12  for (i = 0; i < shapes.length; i++) {
13    r = verifyShapeDescription(shapes[i]);
14    if (r == false) {
15      return false;
16    }
17  }
18
19  for (i = 0; i < bodies.length; i++) {
20    r = verifyBodyDescription(bodies[i], shapes);
21    if (r == false) {
22      return false;
23    }
24  }
25
26  return true;
27}
28
29function verifyShapeExists(name, shapes) {
30  var i;
31  for (i = 0; i < shapes.length; i++) {
32    if (shapes[i].name == name) {
33      return true;
34    }
35  }
36  return false;
37}
38
39function verifyBodyDescription(body, shapes) {
40  var shapeName = body['shape'];
41  var mass = body['mass'];
42  var friction = body['friction'];
43  var transform = body['transform'];
44  if (shapeName == undefined) {
45    console.log('Body needs a shapename.');
46    return false;
47  }
48  if (mass == undefined) {
49    console.log('Body needs a mass.');
50    return false;
51  }
52  if (friction == undefined) {
53    console.log('Body needs a friction.');
54    return false;
55  }
56  if (transform == undefined) {
57    console.log('Body needs a transform.');
58    return false;
59  }
60  if (transform[0] == undefined) {
61    console.log('Body needs a transform array.');
62    return false;
63  }
64  return verifyShapeExists(shapeName, shapes);
65}
66
67function verifyShapeDescription(shape) {
68  if (shape['name'] == undefined) {
69    console.log('Shape needs a name.');
70    return false;
71  }
72
73  var type = shape['type'];
74
75  if (type != "cube" &&
76      type != "sphere" &&
77      type != "cylinder" &&
78      type != "convex") {
79        console.log('Shape type - ' + type + ' not supported.');
80        return false;
81      }
82
83  if (type == "cube") {
84    return verifyCubeDescription(shape);
85  }
86
87  if (type == "sphere") {
88    return verifySphereDescription(shape);
89  }
90
91  if (type == "cylinder") {
92    return verifyCylinderDescription(shape);
93  }
94
95  if (type == "convex") {
96    return verifyConvexDescription(shape);
97  }
98
99  return false;
100}
101
102function verifyCubeDescription(shape) {
103  if (shape['wx'] == undefined) {
104    return false;
105  }
106  if (shape['wy'] == undefined) {
107    return false;
108  }
109  if (shape['wz'] == undefined) {
110    return false;
111  }
112  return true;
113}
114
115function verifySphereDescription(shape) {
116  if (shape['radius'] == undefined) {
117    return false;
118  }
119  return true;
120}
121
122function verifyCylinderDescription(shape) {
123  if (shape['radius'] == undefined) {
124    return false;
125  }
126  if (shape['height'] == undefined) {
127    return false;
128  }
129  return true;
130}
131
132function verifyConvexDescription(shape) {
133  if (shape['points'] == undefined) {
134    return false;
135  }
136  if (shape['points'][0] == undefined) {
137    return false;
138  }
139  return true;
140}
141