root/Q2Tools/trunk/qe4/points.c

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1 /*
2 ===========================================================================
3 Copyright (C) 1997-2006 Id Software, Inc.
4
5 This file is part of Quake 2 Tools source code.
6
7 Quake 2 Tools source code is free software; you can redistribute it
8 and/or modify it under the terms of the GNU General Public License as
9 published by the Free Software Foundation; either version 2 of the License,
10 or (at your option) any later version.
11
12 Quake 2 Tools source code is distributed in the hope that it will be
13 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with Quake 2 Tools source code; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
20 ===========================================================================
21 */
22
23 #include "qe3.h"
24
25
26 #define MAX_POINTFILE   8192
27 static vec3_t   s_pointvecs[MAX_POINTFILE];
28 static int              s_num_points, s_check_point;
29
30 void Pointfile_Delete (void)
31 {
32         char    name[1024];
33
34         strcpy (name, currentmap);
35         StripExtension (name);
36         strcat (name, ".lin");
37
38         remove(name);
39 }
40
41 // advance camera to next point
42 void Pointfile_Next (void)
43 {
44         vec3_t  dir;
45
46         if (s_check_point >= s_num_points-2)
47         {
48                 Sys_Status ("End of pointfile", 0);
49                 return;
50         }
51         s_check_point++;
52         VectorCopy (s_pointvecs[s_check_point], camera.origin);
53         VectorCopy (s_pointvecs[s_check_point], g_qeglobals.d_xy.origin);
54         VectorSubtract (s_pointvecs[s_check_point+1], camera.origin, dir);
55         VectorNormalize (dir);
56         camera.angles[1] = atan2 (dir[1], dir[0])*180/3.14159;
57         camera.angles[0] = asin (dir[2])*180/3.14159;
58
59         Sys_UpdateWindows (W_ALL);
60 }
61
62 // advance camera to previous point
63 void Pointfile_Prev (void)
64 {
65         vec3_t  dir;
66
67         if ( s_check_point == 0)
68         {
69                 Sys_Status ("Start of pointfile", 0);
70                 return;
71         }
72         s_check_point--;
73         VectorCopy (s_pointvecs[s_check_point], camera.origin);
74         VectorCopy (s_pointvecs[s_check_point], g_qeglobals.d_xy.origin);
75         VectorSubtract (s_pointvecs[s_check_point+1], camera.origin, dir);
76         VectorNormalize (dir);
77         camera.angles[1] = atan2 (dir[1], dir[0])*180/3.14159;
78         camera.angles[0] = asin (dir[2])*180/3.14159;
79
80         Sys_UpdateWindows (W_ALL);
81 }
82
83 void Pointfile_Check (void)
84 {
85         char    name[1024];
86         FILE    *f;
87         vec3_t  v;
88
89         strcpy (name, currentmap);
90         StripExtension (name);
91         strcat (name, ".lin");
92
93         f = fopen (name, "r");
94         if (!f)
95                 return;
96
97         Sys_Printf ("Reading pointfile %s\n", name);
98
99         if (!g_qeglobals.d_pointfile_display_list)
100                 g_qeglobals.d_pointfile_display_list = glGenLists(1);
101
102         s_num_points = 0;
103     glNewList (g_qeglobals.d_pointfile_display_list,  GL_COMPILE);
104         glColor3f (1, 0, 0);
105         glDisable(GL_TEXTURE_2D);
106         glDisable(GL_TEXTURE_1D);
107         glLineWidth (4);
108         glBegin(GL_LINE_STRIP);
109         do
110         {
111                 if (fscanf (f, "%f %f %f\n", &v[0], &v[1], &v[2]) != 3)
112                         break;
113                 if (s_num_points < MAX_POINTFILE)
114                 {
115                         VectorCopy (v, s_pointvecs[s_num_points]);
116                         s_num_points++;
117                 }
118                 glVertex3fv (v);
119         } while (1);
120         glEnd();
121         glLineWidth (1);
122         glEndList ();
123
124         s_check_point = 0;
125         fclose (f);
126         Pointfile_Next ();
127 }
128
129 void Pointfile_Draw( void )
130 {
131         int i;
132
133         glColor3f( 1.0F, 0.0F, 0.0F );
134         glDisable(GL_TEXTURE_2D);
135         glDisable(GL_TEXTURE_1D);
136         glLineWidth (4);
137         glBegin(GL_LINE_STRIP);
138         for ( i = 0; i < s_num_points; i++ )
139         {
140                 glVertex3fv( s_pointvecs[i] );
141         }
142         glEnd();
143         glLineWidth( 1 );
144 }
145
146 void Pointfile_Clear (void)
147 {
148         if (!g_qeglobals.d_pointfile_display_list)
149                 return;
150
151         glDeleteLists (g_qeglobals.d_pointfile_display_list, 1);
152         g_qeglobals.d_pointfile_display_list = 0;
153         Sys_UpdateWindows (W_ALL);
154 }
155
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