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
|
/* infodisp.c */
/* Graphical text information display ("HUD") */
/*
* ``The contents of this file are subject to the Mozilla Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is the "Light Speed!" relativistic simulator.
*
* The Initial Developer of the Original Code is Daniel Richard G.
* Portions created by the Initial Developer are Copyright (C) 1999
* Daniel Richard G. <skunk@mit.edu> All Rights Reserved.
*
* Contributor(s): ______________________________________.''
*/
#include "lightspeed.h"
/* Info display control */
void
info_display( int message1, int message2 )
{
static int disp_anything = DEF_INFODISP_ACTIVE;
static int disp_velocity = DEF_INFODISP_SHOW_VELOCITY;
static int disp_time_t = DEF_INFODISP_SHOW_TIME_T;
static int disp_gamma = DEF_INFODISP_SHOW_GAMMA;
static int disp_framerate = DEF_INFODISP_SHOW_FRAMERATE;
int no_contract;
int no_deform;
int no_headlight;
int no_doppler;
char disp_str[64];
switch (message1) {
case INFODISP_DRAW:
if (disp_anything)
break;
else
return;
case INFODISP_ACTIVE:
disp_anything = message2;
queue_redraw( 0 );
return;
case INFODISP_SHOW_VELOCITY:
disp_velocity = message2;
goto dd_redraw;
case INFODISP_SHOW_TIME_T:
disp_time_t = message2;
goto dd_redraw;
case INFODISP_SHOW_GAMMA:
disp_gamma = message2;
goto dd_redraw;
case INFODISP_SHOW_FRAMERATE:
disp_framerate = message2;
goto dd_redraw;
case RESET:
dd_redraw:
if (disp_anything) {
/* Info in display has changed in some way */
queue_redraw( 0 );
}
return;
default:
#ifdef DEBUG
crash( "info_display( ): invalid message" );
#endif
return;
}
/* Z-buffer no good for 2D drawing, lighting likewise */
glDisable( GL_DEPTH_TEST );
glDisable( GL_LIGHTING );
if (disp_velocity) {
sprintf( disp_str, gettext(STR_INF_velocity_ARG), velocity_string( velocity, TRUE ) );
ogl_draw_string( disp_str, POS_BOTTOM_LEFT, 2 );
}
if (disp_time_t) {
sprintf( disp_str, gettext(STR_INF_time_ARG), time_string( ) );
ogl_draw_string( disp_str, POS_TOP_LEFT, 2 );
}
if (disp_gamma) {
sprintf( disp_str, gettext(STR_INF_gamma_ARG), lorentz_factor( velocity ) );
ogl_draw_string( disp_str, POS_BOTTOM_RIGHT, 1 );
}
/* Get status of each of the warp transforms */
no_contract = !warp( QUERY, MESG_(WARP_LORENTZ_CONTRACTION) );
no_deform = !warp( QUERY, MESG_(WARP_OPTICAL_DEFORMATION) );
no_headlight = !warp( QUERY, MESG_(WARP_HEADLIGHT_EFFECT) );
no_doppler = !warp( QUERY, MESG_(WARP_DOPPLER_SHIFT) );
if (no_contract && no_doppler && no_headlight && no_deform)
ogl_draw_string( gettext(STR_INF_no_relativity), POS_TOP_RIGHT, 1 );
else {
if (no_contract)
ogl_draw_string( gettext(STR_INF_no_contraction), POS_TOP_RIGHT, 0 );
if (no_doppler)
ogl_draw_string( gettext(STR_INF_no_doppler_shift), POS_TOP_RIGHT, 0 );
if (no_headlight)
ogl_draw_string( gettext(STR_INF_no_headlight_effect), POS_TOP_RIGHT, 0 );
if (no_deform)
ogl_draw_string( gettext(STR_INF_no_deformation), POS_TOP_RIGHT, 0 );
}
if (disp_framerate) {
sprintf( disp_str, gettext(STR_INF_fps_ARG), framerate );
ogl_draw_string( disp_str, POS_TOP_RIGHT, 0 );
}
glEnable( GL_LIGHTING );
glEnable( GL_DEPTH_TEST );
}
/* end infodisp.c */
|
