-
Notifications
You must be signed in to change notification settings - Fork 1
/
Shape.cpp
247 lines (209 loc) · 9.96 KB
/
Shape.cpp
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
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
#include <math.h>
#include <SDL2/SDL.h>
#include <SDL2/SDL_opengl.h>
#include "Shape.h"
#include "Vector.h"
#include "Utils.h"
namespace typing
{
void DrawPyramid(const ColourRGBA& faceColour, const ColourRGBA& lineColour)
{
DrawPyramid(faceColour);
glDisable(GL_TEXTURE_2D);
glColor4f(lineColour.GetRed(), lineColour.GetGreen(), lineColour.GetBlue(), lineColour.GetAlpha());
glBegin(GL_LINE_STRIP);
glVertex3f(0, 0, 0);
glVertex3f(1, 1, 1);
glVertex3f(1, 1, -1);
glVertex3f(0, 0, 0);
glVertex3f(-1, 1, -1);
glVertex3f(-1, 1, 1);
glVertex3f(0, 0, 0);
glEnd();
glBegin(GL_LINES);
glVertex3f(1, 1, 1);
glVertex3f(-1, 1, 1);
glVertex3f(1, 1, -1);
glVertex3f(-1, 1, -1);
glEnd();
glEnable(GL_TEXTURE_2D);
}
void DrawPyramid(const ColourRGBA& faceColour)
{
glDisable(GL_TEXTURE_2D);
glColor4f(faceColour.GetRed(), faceColour.GetGreen(), faceColour.GetBlue(), faceColour.GetAlpha());
glBegin(GL_TRIANGLE_FAN);
glVertex3f( 0, 0, 0);
glVertex3f( 1, 1, 1);
glVertex3i( 1, 1, -1);
glVertex3i(-1, 1, -1);
glVertex3i(-1, 1, 1);
glVertex3i( 1, 1, 1);
glEnd();
glEnable(GL_TEXTURE_2D);
}
void DrawCube(const ColourRGBA& faceColour, const ColourRGBA& lineColour)
{
DrawCube(faceColour);
glDisable(GL_TEXTURE_2D);
glColor4f(lineColour.GetRed(), lineColour.GetGreen(), lineColour.GetBlue(), lineColour.GetAlpha());
// Bottom lines
glBegin(GL_LINE_LOOP);
glVertex3f(-0.5f, -0.5f, -0.5f);
glVertex3f( 0.5f, -0.5f, -0.5f);
glVertex3f( 0.5f, 0.5f, -0.5f);
glVertex3f(-0.5f, 0.5f, -0.5f);
glEnd();
// Top lines
glBegin(GL_LINE_LOOP);
glVertex3f(-0.5f, 0.5f, 0.5f);
glVertex3f( 0.5f, 0.5f, 0.5f);
glVertex3f( 0.5f, -0.5f, 0.5f);
glVertex3f(-0.5f, -0.5f, 0.5f);
glEnd();
// Side lines
glBegin(GL_LINES);
glVertex3f( 0.5f, 0.5f, -0.5f);
glVertex3f( 0.5f, 0.5f, 0.5f);
glVertex3f(-0.5f, 0.5f, -0.5f);
glVertex3f(-0.5f, 0.5f, 0.5f);
glVertex3f( 0.5f, -0.5f, -0.5f);
glVertex3f( 0.5f, -0.5f, 0.5f);
glVertex3f(-0.5f, -0.5f, -0.5f);
glVertex3f(-0.5f, -0.5f, 0.5f);
glEnd();
glEnable(GL_TEXTURE_2D);
}
void DrawCube(const ColourRGBA& faceColour)
{
glDisable(GL_TEXTURE_2D);
glColor4f(faceColour.GetRed(), faceColour.GetGreen(), faceColour.GetBlue(), faceColour.GetAlpha());
glBegin(GL_QUADS);
// Bottom
glVertex3f(-0.5f, -0.5f, -0.5f);
glVertex3f( 0.5f, -0.5f, -0.5f);
glVertex3f( 0.5f, 0.5f, -0.5f);
glVertex3f(-0.5f, 0.5f, -0.5f);
// Top
glVertex3f(-0.5f, 0.5f, 0.5f);
glVertex3f( 0.5f, 0.5f, 0.5f);
glVertex3f( 0.5f, -0.5f, 0.5f);
glVertex3f(-0.5f, -0.5f, 0.5f);
// Left
glVertex3f(-0.5f, -0.5f, -0.5f);
glVertex3f(-0.5f, -0.5f, 0.5f);
glVertex3f(-0.5f, 0.5f, 0.5f);
glVertex3f(-0.5f, 0.5f, -0.5f);
// Right
glVertex3f(0.5f, 0.5f, -0.5f);
glVertex3f(0.5f, 0.5f, 0.5f);
glVertex3f(0.5f, -0.5f, 0.5f);
glVertex3f(0.5f, -0.5f, -0.5f);
// Up
glVertex3f(-0.5f, 0.5f, -0.5f);
glVertex3f( 0.5f, 0.5f, -0.5f);
glVertex3f( 0.5f, 0.5f, 0.5f);
glVertex3f(-0.5f, 0.5f, 0.5f);
// Down
glVertex3f(-0.5f, -0.5f, 0.5f);
glVertex3f( 0.5f, -0.5f, 0.5f);
glVertex3f( 0.5f, -0.5f, -0.5f);
glVertex3f(-0.5f, -0.5f, -0.5f);
glEnd();
glEnable(GL_TEXTURE_2D);
}
static void DrawDodecahedronFace(const juzutil::Vector3& p1,
const juzutil::Vector3& p2,
const juzutil::Vector3& p3,
const juzutil::Vector3& p4,
const juzutil::Vector3& p5,
GLenum type)
{
glBegin(type);
glVertex3f(p1[0], p1[1], p1[2]);
glVertex3f(p2[0], p2[1], p2[2]);
glVertex3f(p3[0], p3[1], p3[2]);
glVertex3f(p4[0], p4[1], p4[2]);
glVertex3f(p5[0], p5[1], p5[2]);
glEnd();
}
void DrawDodecahedron(const ColourRGBA& faceColour, const ColourRGBA& lineColour)
{
const static float PHI = 1.6180339887f;
const static juzutil::Vector3 points[] = {
juzutil::Vector3(-1.0f/PHI, 0.0f, PHI),
juzutil::Vector3( 1.0f/PHI, 0.0f, PHI),
juzutil::Vector3(-1.0f, -1.0f, -1.0f),
juzutil::Vector3(-1.0f, -1.0f, 1.0f),
juzutil::Vector3(-1.0f, 1.0f, -1.0f),
juzutil::Vector3(-1.0f, 1.0f, 1.0f),
juzutil::Vector3(1.0f, -1.0f, -1.0f),
juzutil::Vector3(1.0f, -1.0f, 1.0f),
juzutil::Vector3(1.0f, 1.0f, -1.0f),
juzutil::Vector3(1.0f, 1.0f, 1.0f),
juzutil::Vector3(PHI, 1.0f/PHI, 0.0f),
juzutil::Vector3(PHI, -1.0f/PHI, 0.0f),
juzutil::Vector3(-PHI, 1.0f/PHI, 0.0f),
juzutil::Vector3(-PHI, -1.0f/PHI, -0.0f),
juzutil::Vector3(-1.0f/PHI, 0.0f, -PHI),
juzutil::Vector3(1.0f/PHI, 0.0f, -PHI),
juzutil::Vector3(0.0f, PHI, 1.0f/PHI),
juzutil::Vector3(0.0f, PHI, -1.0f/PHI),
juzutil::Vector3(0.0f, -PHI, 1.0f/PHI),
juzutil::Vector3(0.0f, -PHI, -1.0f/PHI),
};
glDisable(GL_TEXTURE_2D);
glColor4f(faceColour.GetRed(), faceColour.GetGreen(), faceColour.GetBlue(), faceColour.GetAlpha());
DrawDodecahedronFace(points[0], points[1], points[9], points[16], points[5], GL_POLYGON);
DrawDodecahedronFace(points[1], points[0], points[3], points[18], points[7], GL_POLYGON);
DrawDodecahedronFace(points[1], points[7], points[11], points[10], points[9], GL_POLYGON);
DrawDodecahedronFace(points[11], points[7], points[18], points[19], points[6], GL_POLYGON);
DrawDodecahedronFace(points[8], points[17], points[16], points[9], points[10], GL_POLYGON);
DrawDodecahedronFace(points[2], points[14], points[15], points[6], points[19], GL_POLYGON);
DrawDodecahedronFace(points[2], points[13], points[12], points[4], points[14], GL_POLYGON);
DrawDodecahedronFace(points[2], points[19], points[18], points[3], points[13], GL_POLYGON);
DrawDodecahedronFace(points[3], points[0], points[5], points[12], points[13], GL_POLYGON);
DrawDodecahedronFace(points[6], points[15], points[8], points[10], points[11], GL_POLYGON);
DrawDodecahedronFace(points[4], points[17], points[8], points[15], points[14], GL_POLYGON);
DrawDodecahedronFace(points[4], points[12], points[5], points[16], points[17], GL_POLYGON);
glColor4f(lineColour.GetRed(), lineColour.GetGreen(), lineColour.GetBlue(), lineColour.GetAlpha());
DrawDodecahedronFace(points[0], points[1], points[9], points[16], points[5], GL_LINE_LOOP);
DrawDodecahedronFace(points[1], points[0], points[3], points[18], points[7], GL_LINE_LOOP);
DrawDodecahedronFace(points[1], points[7], points[11], points[10], points[9], GL_LINE_LOOP);
DrawDodecahedronFace(points[11], points[7], points[18], points[19], points[6], GL_LINE_LOOP);
DrawDodecahedronFace(points[8], points[17], points[16], points[9], points[10], GL_LINE_LOOP);
DrawDodecahedronFace(points[2], points[14], points[15], points[6], points[19], GL_LINE_LOOP);
DrawDodecahedronFace(points[2], points[13], points[12], points[4], points[14], GL_LINE_LOOP);
DrawDodecahedronFace(points[2], points[19], points[18], points[3], points[13], GL_LINE_LOOP);
DrawDodecahedronFace(points[3], points[0], points[5], points[12], points[13], GL_LINE_LOOP);
DrawDodecahedronFace(points[6], points[15], points[8], points[10], points[11], GL_LINE_LOOP);
DrawDodecahedronFace(points[4], points[17], points[8], points[15], points[14], GL_LINE_LOOP);
DrawDodecahedronFace(points[4], points[12], points[5], points[16], points[17], GL_LINE_LOOP);
glEnable(GL_TEXTURE_2D);
}
void DrawSphere(const ColourRGBA& colour)
{
const unsigned int SPHERE_LATS = 10;
const unsigned int SPHERE_LONGS = 10;
glDisable(GL_TEXTURE_2D);
glColor4f(colour.GetRed(), colour.GetGreen(), colour.GetBlue(), colour.GetAlpha());
for (unsigned int i = 0; i < SPHERE_LATS; i++) {
const float lat0 = static_cast<float>(M_PI) * (-0.5f + static_cast<float>(i - 1) / static_cast<float>(SPHERE_LATS));
const float z0 = sinf(lat0);
const float zr0 = cosf(lat0);
const float lat1 = static_cast<float>(M_PI) * (-0.5f + static_cast<float>(i) / static_cast<float>(SPHERE_LATS));
const float z1 = sinf(lat1);
const float zr1 = cosf(lat1);
glBegin(GL_QUAD_STRIP);
for(unsigned int j = 0; j <= SPHERE_LONGS; j++) {
const float lng = 2.0f * static_cast<float>(M_PI) * static_cast<float>(j - 1) / static_cast<float>(SPHERE_LONGS);
const float x = cosf(lng);
const float y = sinf(lng);
glVertex3f(x * zr0, y * zr0, z0);
glVertex3f(x * zr1, y * zr1, z1);
}
glEnd();
}
glEnable(GL_TEXTURE_2D);
}
}