-
Notifications
You must be signed in to change notification settings - Fork 59
/
DataLoader.cs
183 lines (169 loc) · 6.86 KB
/
DataLoader.cs
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
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Globalization;
using System.IO;
using System.Reflection;
using LibTessDotNet;
namespace TessBed
{
public struct PolygonPoint
{
public float X, Y;
public Color Color;
}
public class Polygon : List<PolygonPoint>
{
public ContourOrientation Orientation = ContourOrientation.Original;
public Polygon()
{
}
public Polygon(ICollection<PolygonPoint> points)
: base(points)
{
}
}
public class PolygonSet : List<Polygon>
{
public bool HasColors = false;
}
public class DataLoader
{
public class Asset
{
public string Name;
public PolygonSet Polygons;
}
public PolygonSet LoadDat(Stream fileStream)
{
var points = new List<PolygonPoint>();
var polys = new PolygonSet();
int lineNum = 0;
string line;
Color currentColor = Color.White;
ContourOrientation currentOrientation = ContourOrientation.Original;
using (var stream = new StreamReader(fileStream))
{
while ((line = stream.ReadLine()) != null)
{
++lineNum;
line = line.Trim();
if (string.IsNullOrEmpty(line))
{
if (points.Count > 0)
{
var p = new Polygon(points) { Orientation = currentOrientation };
currentOrientation = ContourOrientation.Original;
polys.Add(p);
points.Clear();
}
continue;
}
if (line.StartsWith("//") ||
line.StartsWith("#") ||
line.StartsWith(";"))
{
continue;
}
if (line.StartsWith("force", true, CultureInfo.InvariantCulture))
{
var force = line.Split(new[] { ' ', ',', '\t' }, StringSplitOptions.RemoveEmptyEntries);
if (force.Length == 2)
{
if (string.Compare(force[1], "cw", true) == 0)
{
currentOrientation = ContourOrientation.Clockwise;
}
if (string.Compare(force[1], "ccw", true) == 0)
{
currentOrientation = ContourOrientation.CounterClockwise;
}
}
}
else if (line.StartsWith("color", true, CultureInfo.InvariantCulture))
{
var rgba = line.Split(new[] { ' ', ',', '\t' }, StringSplitOptions.RemoveEmptyEntries);
int r = 255, g = 255, b = 255, a = 255;
if (rgba != null)
{
if (rgba.Length == 4 &&
int.TryParse(rgba[1], NumberStyles.Integer, CultureInfo.InvariantCulture, out r) &&
int.TryParse(rgba[2], NumberStyles.Integer, CultureInfo.InvariantCulture, out g) &&
int.TryParse(rgba[3], NumberStyles.Integer, CultureInfo.InvariantCulture, out b))
{
currentColor = Color.FromArgb(r, g, b);
polys.HasColors = true;
}
else if (rgba.Length == 5 &&
int.TryParse(rgba[1], NumberStyles.Integer, CultureInfo.InvariantCulture, out r) &&
int.TryParse(rgba[2], NumberStyles.Integer, CultureInfo.InvariantCulture, out g) &&
int.TryParse(rgba[3], NumberStyles.Integer, CultureInfo.InvariantCulture, out b) &&
int.TryParse(rgba[4], NumberStyles.Integer, CultureInfo.InvariantCulture, out a))
{
currentColor = Color.FromArgb(a, r, g, b);
polys.HasColors = true;
}
}
}
else
{
float x, y;
var xy = line.Split(new[] { ' ', ',', '\t' }, StringSplitOptions.RemoveEmptyEntries);
if (xy != null &&
xy.Length >= 2 &&
float.TryParse(xy[0], NumberStyles.Float, CultureInfo.InvariantCulture, out x) &&
float.TryParse(xy[1], NumberStyles.Float, CultureInfo.InvariantCulture, out y))
{
points.Add(new PolygonPoint { X = x, Y = y, Color = currentColor });
}
else
{
throw new InvalidDataException("Invalid input data");
}
}
}
if (points.Count > 0)
{
Polygon p = new Polygon(points) { Orientation = currentOrientation };
polys.Add(p);
}
}
return polys;
}
Dictionary<string, Asset> _assets = new Dictionary<string, Asset>();
public string[] AssetNames
{
get
{
var names = new string[_assets.Count];
int i = 0;
foreach (var name in _assets.Keys)
names[i++] = name;
return names;
}
}
public DataLoader()
{
foreach (var name in Assembly.GetExecutingAssembly().GetManifestResourceNames())
{
var s = name.Split('.');
if (s != null && s.Length > 0)
{
if (s[s.Length - 1] == "dat")
{
_assets.Add(s[s.Length - 2], new Asset { Name = name });
}
}
}
}
public Asset GetAsset(string name)
{
var asset = _assets[name];
if (asset.Polygons == null)
{
asset.Polygons = LoadDat(Assembly.GetExecutingAssembly().GetManifestResourceStream(asset.Name));
}
return asset;
}
}
}