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
|
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
|
-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
+
+
+
+
+
+
+
+
+
+
-
-
-
-
-
-
-
+
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
-
+
-
-
+
+
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
+
+
-
-
+
+
+
-
+
-
-
-
+
+
+
-
-
+
+
-
-
-
+
+
+
-
+
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
-
-
-
+
+
+
+
-
-
+
+
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
-
+
-
-
-
+
+
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
-
+
-
+
-
+
-
-
-
+
-
+
-
-
-
+
-
+
-
-
-
+
-
+
-
-
-
+
-
+
-
-
-
+
-
+
-
-
-
+
-
+
|
// rendertext.cpp: based on Don's gl_text.cpp
#include "cube.h"
short char_coords[96][4] =
short char_coords[96][4] = {
{
{0,0,25,64}, //!
{25,0,54,64}, //"
{54,0,107,64}, //#
{107,0,148,64}, //$
{148,0,217,64}, //%
{217,0,263,64}, //&
{263,0,280,64}, //'
{280,0,309,64}, //(
{309,0,338,64}, //)
{338,0,379,64}, //*
{379,0,432,64}, //+
{432,0,455,64}, //,
{455,0,484,64}, //-
{0,64,21,128}, //.
{23,64,52,128}, ///
{52,64,93,128}, //0
{93,64,133,128}, //1
{133,64,174,128}, //2
{174,64,215,128}, //3
{215,64,256,128}, //4
{256,64,296,128}, //5
{296,64,337,128}, //6
{337,64,378,128}, //7
{378,64,419,128}, //8
{419,64,459,128}, //9
{459,64,488,128}, //:
{0,128,29,192}, //;
{29,128,81,192}, //<
{81,128,134,192}, //=
{134,128,186,192}, //>
{186,128,221,192}, //?
{221,128,285,192}, //@
{285,128,329,192}, //A
{329,128,373,192}, //B
{373,128,418,192}, //C
{418,128,467,192}, //D
{0,192,40,256}, //E
{40,192,77,256}, //F
{77,192,127,256}, //G
{127,192,175,256}, //H
{175,192,202,256}, //I
{202,192,231,256}, //J
{231,192,275,256}, //K
{275,192,311,256}, //L
{311,192,365,256}, //M
{365,192,413,256}, //N
{413,192,463,256}, //O
{1,256,38,320}, //P
{38,256,89,320}, //Q
{89,256,133,320}, //R
{133,256,176,320}, //S
{177,256,216,320}, //T
{217,256,263,320}, //U
{263,256,307,320}, //V
{307,256,370,320}, //W
{370,256,414,320}, //X
{414,256,453,320}, //Y
{453,256,497,320}, //Z
{0,320,29,384}, //[
{29,320,58,384}, //"\"
{59,320,87,384}, //]
{87,320,139,384}, //^
{139,320,180,384}, //_
{180,320,221,384}, //`
{221,320,259,384}, //a
{259,320,299,384}, //b
{299,320,332,384}, //c
{332,320,372,384}, //d
{372,320,411,384}, //e
{411,320,433,384}, //f
{435,320,473,384}, //g
{0,384,40,448}, //h
{40,384,56,448}, //i
{58,384,80,448}, //j
{80,384,118,448}, //k
{118,384,135,448}, //l
{135,384,197,448}, //m
{197,384,238,448}, //n
{238,384,277,448}, //o
{277,384,317,448}, //p
{317,384,356,448}, //q
{357,384,384,448}, //r
{385,384,417,448}, //s
{417,384,442,448}, //t
{443,384,483,448}, //u
{0,448,38,512}, //v
{38,448,90,512}, //w
{90,448,128,512}, //x
{128,448,166,512}, //y
{166,448,200,512}, //z
{200,448,241,512}, //{
{241,448,270,512}, //|
{270,448,310,512}, //}
{310,448,363,512}, //~
int text_width(char *str)
int x = 0;
for (int i = 0; str[i] != 0; i++)
{
int c = str[i];
if(c=='\t') { x = (x+PIXELTAB)/PIXELTAB*PIXELTAB; continue; };
if(c=='\f') continue;
if(c==' ') { x += FONTH/2; continue; };
c -= 33;
if(c<0 || c>=95) continue;
int in_width = char_coords[c][2] - char_coords[c][0];
x += in_width + 1;
}
return x;
void draw_textf(char *fstr, int left, int top, int gl_num, ...)
void
draw_textf(char *fstr, int left, int top, int gl_num, ...)
{
sprintf_sdlv(str, gl_num, fstr);
draw_text(str, left, top, gl_num);
void draw_text(char *str, int left, int top, int gl_num)
glBlendFunc(GL_ONE, GL_ONE);
glBindTexture(GL_TEXTURE_2D, gl_num);
glColor3ub(255,255,255);
int x = left;
int y = top;
int i;
float in_left, in_top, in_right, in_bottom;
int in_width, in_height;
for (i = 0; str[i] != 0; i++)
{
int c = str[i];
if(c=='\t') { x = (x-left+PIXELTAB)/PIXELTAB*PIXELTAB+left; continue; };
if(c=='\f') { glColor3ub(64,255,128); continue; };
if(c==' ') { x += FONTH/2; continue; };
c -= 33;
if(c<0 || c>=95) continue;
in_left = ((float) char_coords[c][0]) / 512.0f;
in_top = ((float) char_coords[c][1]+2) / 512.0f;
in_right = ((float) char_coords[c][2]) / 512.0f;
in_bottom = ((float) char_coords[c][3]-2) / 512.0f;
in_width = char_coords[c][2] - char_coords[c][0];
in_height = char_coords[c][3] - char_coords[c][1];
glBegin(GL_QUADS);
glTexCoord2f(in_left, in_top ); glVertex2i(x, y);
glTexCoord2f(in_right, in_top ); glVertex2i(x + in_width, y);
glTexCoord2f(in_right, in_bottom); glVertex2i(x + in_width, y + in_height);
glTexCoord2f(in_left, in_bottom); glVertex2i(x, y + in_height);
glEnd();
xtraverts += 4;
x += in_width + 1;
}
void draw_envbox_aux(float s0, float t0, int x0, int y0, int z0,
float s1, float t1, int x1, int y1, int z1,
float s2, float t2, int x2, int y2, int z2,
float s3, float t3, int x3, int y3, int z3,
int texture)
glBindTexture(GL_TEXTURE_2D, texture);
glBegin(GL_QUADS);
glTexCoord2f(s3, t3); glVertex3d(x3, y3, z3);
glTexCoord2f(s2, t2); glVertex3d(x2, y2, z2);
glTexCoord2f(s1, t1); glVertex3d(x1, y1, z1);
glTexCoord2f(s0, t0); glVertex3d(x0, y0, z0);
glEnd();
xtraverts += 4;
void draw_envbox(int t, int w)
glDepthMask(GL_FALSE);
draw_envbox_aux(1.0f, 1.0f, -w, -w, w,
0.0f, 1.0f, w, -w, w,
0.0f, 0.0f, w, -w, -w,
1.0f, 0.0f, -w, -w, -w, t);
draw_envbox_aux(1.0f, 1.0f, +w, w, w,
0.0f, 1.0f, -w, w, w,
0.0f, 0.0f, -w, w, -w,
1.0f, 0.0f, +w, w, -w, t+1);
draw_envbox_aux(0.0f, 0.0f, -w, -w, -w,
1.0f, 0.0f, -w, w, -w,
1.0f, 1.0f, -w, w, w,
0.0f, 1.0f, -w, -w, w, t+2);
draw_envbox_aux(1.0f, 1.0f, +w, -w, w,
0.0f, 1.0f, +w, w, w,
0.0f, 0.0f, +w, w, -w,
1.0f, 0.0f, +w, -w, -w, t+3);
draw_envbox_aux(0.0f, 1.0f, -w, w, w,
0.0f, 0.0f, +w, w, w,
1.0f, 0.0f, +w, -w, w,
1.0f, 1.0f, -w, -w, w, t+4);
draw_envbox_aux(0.0f, 1.0f, +w, w, -w,
0.0f, 0.0f, -w, w, -w,
1.0f, 0.0f, -w, -w, -w,
1.0f, 1.0f, +w, -w, -w, t+5);
glDepthMask(GL_TRUE);
|