2 * This program is under the GNU GPL.
3 * Use at your own risk.
5 * You need TWO Voodoo Graphics boards in order to run
8 * written by David Bucciarelli (tech.hmw@plus.it)
23 #include "tunneldat.h"
30 static int fullscreen
= 1;
34 GLint
fxMesaSelectCurrentBoard(int);
37 static int WIDTHC0
= 640;
38 static int HEIGHTC0
= 480;
40 static int WIDTHC1
= 640;
41 static int HEIGHTC1
= 480;
44 static GLint Frames
= 0;
49 #define M_PI 3.1415926535
52 static float obs
[3] = { 1000.0, 0.0, 2.0 };
55 static float alpha
= 90.0;
56 static float beta
= 90.0;
59 static int bfcull
= 1;
60 static int usetex
= 1;
61 static int cstrip
= 0;
63 static int joyavailable
= 0;
64 static int joyactive
= 0;
66 static int channel
[2];
68 static GLuint t1id
, t2id
;
73 glGenTextures(1, &t1id
);
74 glBindTexture(GL_TEXTURE_2D
, t1id
);
76 if (!LoadRGBMipmaps("../images/tile.rgb", GL_RGB
)) {
77 fprintf(stderr
, "Error reading a texture.\n");
81 glTexParameterf(GL_TEXTURE_2D
, GL_TEXTURE_WRAP_S
, GL_REPEAT
);
82 glTexParameterf(GL_TEXTURE_2D
, GL_TEXTURE_WRAP_T
, GL_REPEAT
);
84 glTexParameterf(GL_TEXTURE_2D
, GL_TEXTURE_MIN_FILTER
,
85 GL_LINEAR_MIPMAP_NEAREST
);
86 glTexParameterf(GL_TEXTURE_2D
, GL_TEXTURE_MAG_FILTER
, GL_LINEAR
);
88 glGenTextures(1, &t2id
);
89 glBindTexture(GL_TEXTURE_2D
, t2id
);
91 if (!LoadRGBMipmaps("../images/bw.rgb", GL_RGB
)) {
92 fprintf(stderr
, "Error reading a texture.\n");
96 glTexParameterf(GL_TEXTURE_2D
, GL_TEXTURE_WRAP_S
, GL_REPEAT
);
97 glTexParameterf(GL_TEXTURE_2D
, GL_TEXTURE_WRAP_T
, GL_REPEAT
);
99 glTexParameterf(GL_TEXTURE_2D
, GL_TEXTURE_MIN_FILTER
,
100 GL_LINEAR_MIPMAP_LINEAR
);
101 glTexParameterf(GL_TEXTURE_2D
, GL_TEXTURE_MAG_FILTER
, GL_LINEAR
);
103 glTexEnvf(GL_TEXTURE_ENV
, GL_TEXTURE_ENV_MODE
, GL_MODULATE
);
107 drawobjs(const int *l
, const float *f
)
112 float r
= 0.33, g
= 0.33, b
= 0.33;
130 glBegin(GL_TRIANGLE_STRIP
);
131 for (j
= 0; j
< mend
; j
++) {
145 glBegin(GL_TRIANGLE_STRIP
);
146 for (j
= 0; j
< mend
; j
++) {
161 static double t0
= -1.;
162 double dt
, t
= glutGet(GLUT_ELAPSED_TIME
) / 1000.0;
168 dir
[0] = sin(alpha
* M_PI
/ 180.0);
169 dir
[1] = cos(alpha
* M_PI
/ 180.0) * sin(beta
* M_PI
/ 180.0);
170 dir
[2] = cos(beta
* M_PI
/ 180.0);
172 if (dir
[0] < 1.0e-5 && dir
[0] > -1.0e-5)
174 if (dir
[1] < 1.0e-5 && dir
[1] > -1.0e-5)
176 if (dir
[2] < 1.0e-5 && dir
[2] > -1.0e-5)
179 obs
[0] += v
* dir
[0] * dt
;
180 obs
[1] += v
* dir
[1] * dt
;
181 obs
[2] += v
* dir
[2] * dt
;
185 special(int k
, int x
, int y
)
204 key(unsigned char k
, int x
, int y
)
208 glutDestroyWindow(channel
[0]);
209 glutDestroyWindow(channel
[1]);
222 fullscreen
= (!fullscreen
);
224 glutSetWindow(channel
[0]);
225 XMesaSetFXmode(fullscreen
? XMESA_FX_FULLSCREEN
: XMESA_FX_WINDOW
);
227 glutSetWindow(channel
[1]);
228 XMesaSetFXmode(fullscreen
? XMESA_FX_FULLSCREEN
: XMESA_FX_WINDOW
);
233 joyactive
= (!joyactive
);
246 glDisable(GL_CULL_FACE
);
250 glEnable(GL_CULL_FACE
);
259 fprintf(stderr
, "Deleting textures...\n");
260 glDeleteTextures(1, &t1id
);
261 glDeleteTextures(1, &t2id
);
262 fprintf(stderr
, "Loading textures...\n");
264 fprintf(stderr
, "Done.\n");
270 reshapechannel0(int w
, int h
)
276 glMatrixMode(GL_PROJECTION
);
279 ratio
= 0.5f
* w
/ (float) h
;
281 glFrustum(-2.0, 0.0, -1.0 * ratio
, 1.0 * ratio
, 1.0, 60.0);
283 glMatrixMode(GL_MODELVIEW
);
285 glViewport(0, 0, w
, h
);
289 reshapechannel1(int w
, int h
)
295 glMatrixMode(GL_PROJECTION
);
298 ratio
= 0.5f
* w
/ (float) h
;
300 glFrustum(0.0, 2.0, -1.0 * ratio
, 1.0 * ratio
, 1.0, 60.0);
302 glMatrixMode(GL_MODELVIEW
);
304 glViewport(0, 0, w
, h
);
308 printstring(void *font
, char *string
)
312 len
= (int) strlen(string
);
313 for (i
= 0; i
< len
; i
++)
314 glutBitmapCharacter(font
, string
[i
]);
320 glBlendFunc(GL_SRC_ALPHA
, GL_ONE_MINUS_SRC_ALPHA
);
321 glColor4f(0.0, 0.0, 0.0, 0.5);
322 glRecti(40, 40, 600, 440);
324 glColor3f(1.0, 0.0, 0.0);
325 glRasterPos2i(300, 420);
326 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "Help");
328 glRasterPos2i(60, 390);
329 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "h - Toggle Help");
330 glRasterPos2i(60, 360);
331 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "t - Toggle Textures");
332 glRasterPos2i(60, 330);
333 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "f - Toggle Fog");
334 glRasterPos2i(60, 300);
335 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "m - Toggle strips");
336 glRasterPos2i(60, 270);
337 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "b - Toggle Back face culling");
338 glRasterPos2i(60, 240);
339 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "Arrow Keys - Rotate");
340 glRasterPos2i(60, 210);
341 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "a - Increase velocity");
342 glRasterPos2i(60, 180);
343 printstring(GLUT_BITMAP_TIMES_ROMAN_24
, "z - Decrease velocity");
345 glRasterPos2i(60, 150);
347 printstring(GLUT_BITMAP_TIMES_ROMAN_24
,
348 "j - Toggle jostick control (Joystick control available)");
350 printstring(GLUT_BITMAP_TIMES_ROMAN_24
,
351 "(No Joystick control available)");
358 static UINT max
[2] = { 0, 0 };
359 static UINT min
[2] = { 0xffffffff, 0xffffffff }, center
[2];
363 res
= joyGetPos(JOYSTICKID1
, &joy
);
365 if (res
== JOYERR_NOERROR
) {
368 if (max
[0] < joy
.wXpos
)
370 if (min
[0] > joy
.wXpos
)
372 center
[0] = (max
[0] + min
[0]) / 2;
374 if (max
[1] < joy
.wYpos
)
376 if (min
[1] > joy
.wYpos
)
378 center
[1] = (max
[1] + min
[1]) / 2;
381 if (fabs(center
[0] - (float) joy
.wXpos
) > 0.1 * (max
[0] - min
[0]))
383 2.0 * (center
[0] - (float) joy
.wXpos
) / (max
[0] - min
[0]);
384 if (fabs(center
[1] - (float) joy
.wYpos
) > 0.1 * (max
[1] - min
[1]))
385 beta
+= 2.0 * (center
[1] - (float) joy
.wYpos
) / (max
[1] - min
[1]);
387 if (joy
.wButtons
& JOY_BUTTON1
)
389 if (joy
.wButtons
& JOY_BUTTON2
)
401 static char frbuf
[80] = "";
407 glClear(GL_COLOR_BUFFER_BIT
);
409 glClear(GL_COLOR_BUFFER_BIT
);
412 glEnable(GL_TEXTURE_2D
);
414 glDisable(GL_TEXTURE_2D
);
421 glShadeModel(GL_SMOOTH
);
425 gluLookAt(obs
[0], obs
[1], obs
[2],
426 obs
[0] + dir
[0], obs
[1] + dir
[1], obs
[2] + dir
[2],
431 base
= obs
[0] - fmod(obs
[0], 8.0);
435 base
= obs
[0] + (8.0 - fmod(obs
[0], 8.0));
439 glTranslatef(base
- offset
/ 2.0, 0.0, 0.0);
440 for (i
= 0; i
< NUMBLOC
; i
++) {
441 glTranslatef(offset
, 0.0, 0.0);
442 glBindTexture(GL_TEXTURE_2D
, t1id
);
443 drawobjs(striplength_skin_11
, stripdata_skin_11
);
444 glBindTexture(GL_TEXTURE_2D
, t2id
);
445 drawobjs(striplength_skin_12
, stripdata_skin_12
);
446 drawobjs(striplength_skin_9
, stripdata_skin_9
);
447 drawobjs(striplength_skin_13
, stripdata_skin_13
);
452 glDisable(GL_TEXTURE_2D
);
454 glShadeModel(GL_FLAT
);
456 glMatrixMode(GL_PROJECTION
);
459 glOrtho(-0.5, 639.5, -0.5, 479.5, -1.0, 1.0);
461 glMatrixMode(GL_MODELVIEW
);
464 glColor3f(1.0, 0.0, 0.0);
465 glRasterPos2i(10, 10);
466 printstring(GLUT_BITMAP_HELVETICA_18
, frbuf
);
467 glRasterPos2i(350, 470);
468 printstring(GLUT_BITMAP_HELVETICA_10
,
469 "Tunnel2 V1.0 Written by David Bucciarelli (tech.hmw@plus.it)");
474 glMatrixMode(GL_PROJECTION
);
476 glMatrixMode(GL_MODELVIEW
);
480 GLint t
= glutGet(GLUT_ELAPSED_TIME
);
481 if (t
- T0
>= 2000) {
482 GLfloat seconds
= (t
- T0
) / 1000.0;
483 GLfloat fps
= Frames
/ seconds
;
484 sprintf(frbuf
, "Frame rate: %f", fps
);
494 glutSetWindow(channel
[0]);
502 glutSetWindow(channel
[1]);
510 glutSetWindow(channel
[0]);
512 glutSetWindow(channel
[1]);
515 glutSetWindow(channel
[0]);
517 glutSetWindow(channel
[1]);
524 float fogcolor
[4] = { 0.7, 0.7, 0.7, 1.0 };
526 glShadeModel(GL_SMOOTH
);
527 glDisable(GL_DEPTH_TEST
);
528 glEnable(GL_CULL_FACE
);
529 glEnable(GL_TEXTURE_2D
);
532 glFogi(GL_FOG_MODE
, GL_EXP2
);
533 glFogfv(GL_FOG_COLOR
, fogcolor
);
535 glFogf(GL_FOG_DENSITY
, 0.06);
536 glHint(GL_FOG_HINT
, GL_NICEST
);
540 glBlendFunc(GL_SRC_ALPHA_SATURATE, GL_ONE);
541 glEnable(GL_POLYGON_SMOOTH);
544 glClearColor(fogcolor
[0], fogcolor
[1], fogcolor
[2], fogcolor
[3]);
545 glClear(GL_COLOR_BUFFER_BIT
);
549 main(int ac
, char **av
)
552 "Tunnel2 V1.0\nWritten by David Bucciarelli (tech.hmw@plus.it)\n");
554 glutInitWindowPosition(0, 0);
555 glutInitWindowSize(WIDTHC0
, HEIGHTC0
);
558 glutInitDisplayMode(GLUT_RGB
| GLUT_DOUBLE
);
561 if (fxMesaSelectCurrentBoard(0) < 0) {
562 fprintf(stderr
, "The first Voodoo Graphics board is missing !?!?\n");
566 if (!(channel
[0] = glutCreateWindow("Channel 0"))) {
567 fprintf(stderr
, "Error, couldn't open window\n");
571 reshapechannel0(WIDTHC0
, HEIGHTC0
);
574 glutDisplayFunc(drawchannel0
);
575 glutReshapeFunc(reshapechannel0
);
576 glutKeyboardFunc(key
);
577 glutSpecialFunc(special
);
580 if (fxMesaSelectCurrentBoard(1) < 0) {
581 fprintf(stderr
, "The second Voodoo Graphics board is missing !\n");
585 glutInitWindowPosition(WIDTHC0
, 0);
586 glutInitWindowSize(WIDTHC1
, HEIGHTC1
);
587 if (!(channel
[1] = glutCreateWindow("Channel 1"))) {
588 fprintf(stderr
, "Error, couldn't open window\n");
592 reshapechannel1(WIDTHC1
, HEIGHTC1
);
595 glutDisplayFunc(drawchannel1
);
596 glutReshapeFunc(reshapechannel1
);
597 glutKeyboardFunc(key
);
598 glutSpecialFunc(special
);
600 glutIdleFunc(drawall
);