/* atlantis --- Shows moving 3D sea animals */ #if !defined( lint ) && !defined( SABER ) static const char sccsid[] = "@(#)atlantis.c 1.4 2000/01/28 xlockmore"; #endif /* Copyright (c) E. Lassauge, 1998. */ /* * Permission to use, copy, modify, and distribute this software and its * documentation for any purpose and without fee is hereby granted, * provided that the above copyright notice appear in all copies and that * both that copyright notice and this permission notice appear in * supporting documentation. * * This file is provided AS IS with no warranties of any kind. The author * shall have no liability with respect to the infringement of copyrights, * trade secrets or any patents by this file or any part thereof. In no * event will the author be liable for any lost revenue or profits or * other special, indirect and consequential damages. * * The original code for this mode was written by Mark J. Kilgard * as a demo for openGL programming. * * Porting it to xlock was possible by comparing the original Mesa's morph3d * demo with it's ported version to xlock, so thanks for Marcelo F. Vianna * (look at morph3d.c) for his indirect help. * * Thanks goes also to Brian Paul for making it possible and inexpensive * to use OpenGL at home. * * My e-mail address is lassauge@mail.dotcom.fr * * Eric Lassauge (May-13-1998) * * REVISION HISTORY: * * David A. Bagley - 98/06/17 : Add whalespeed option. Global options to * initialize local variables are now: * XLock.atlantis.cycles: 100 ! SharkSpeed * XLock.atlantis.batchcount: 4 ! SharkNum * XLock.atlantis.whalespeed: 250 ! WhaleSpeed * XLock.atlantis.size: 6000 ! SharkSize * Add random direction for whales/dolphins * * E.Lassauge - 98/06/16: Use the following global options to initialize * local variables : * XLock.atlantis.delay: 100 ! SharkSpeed * XLock.atlantis.batchcount: 4 ! SharkNum * XLock.atlantis.cycles: 250 ! WhaleSpeed * XLock.atlantis.size: 6000 ! SharkSize * Add support for -/+ wireframe (t'was so easy to do!) * * TODO : * - try to add what's called underwater caustics in Mark Kilgard's pages * - add a sort of background image * - better handling of sizes and speeds * - test standalone and module modes * - purify it (!) */ /* Copyright (c) Mark J. Kilgard, 1994. */ /** * (c) Copyright 1993, 1994, Silicon Graphics, Inc. * ALL RIGHTS RESERVED * Permission to use, copy, modify, and distribute this software for * any purpose and without fee is hereby granted, provided that the above * copyright notice appear in all copies and that both the copyright notice * and this permission notice appear in supporting documentation, and that * the name of Silicon Graphics, Inc. not be used in advertising * or publicity pertaining to distribution of the software without specific, * written prior permission. * * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS" * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE, * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR * FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON * GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT, * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION, * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE. * * US Government Users Restricted Rights * Use, duplication, or disclosure by the Government is subject to * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph * (c)(1)(ii) of the Rights in Technical Data and Computer Software * clause at DFARS 252.227-7013 and/or in similar or successor * clauses in the FAR or the DOD or NASA FAR Supplement. * Unpublished-- rights reserved under the copyright laws of the * United States. Contractor/manufacturer is Silicon Graphics, * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311. * * OpenGL(TM) is a trademark of Silicon Graphics, Inc. */ #ifdef STANDALONE #define PROGCLASS "Atlantis" #define HACK_INIT init_atlantis #define HACK_DRAW draw_atlantis #define atlantis_opts xlockmore_opts #define DEFAULTS "*delay: 1000 \n" \ "*count: 4 \n" \ "*cycles: 100 \n" \ "*size: 6000 \n" \ "*whalespeed: 250\n" #include "xlockmore.h" /* from the xscreensaver distribution */ #else /* !STANDALONE */ #include "xlock.h" /* from the xlockmore distribution */ #include "vis.h" #endif /* !STANDALONE */ #ifdef MODE_atlantis #include "atlantis.h" #include #define DEF_WHALESPEED "250" static int whalespeed; static XrmOptionDescRec opts[] = { {(char *) "-whalespeed", (char *) ".atlantis.whalespeed", XrmoptionSepArg, (caddr_t) NULL} }; static argtype vars[] = { {(caddr_t *) & whalespeed, (char *) "whalespeed", (char *) "WhaleSpeed", (char *) DEF_WHALESPEED, t_Int} }; static OptionStruct desc[] = { {(char *) "-whalespeed num", (char *) "speed of whales and the dolphin"} }; ModeSpecOpt atlantis_opts = {sizeof opts / sizeof opts[0], opts, sizeof vars / sizeof vars[0], vars, desc}; #ifdef USE_MODULES ModStruct atlantis_description = {"atlantis", "init_atlantis", "draw_atlantis", "release_atlantis", "refresh_atlantis", "change_atlantis", NULL, &atlantis_opts, 1000, NUM_SHARKS, SHARKSPEED, SHARKSIZE, 64, 1.0, "", "Shows moving sharks/whales/dolphin", 0, NULL}; #endif static atlantisstruct *atlantis = NULL; static void InitFishs(atlantisstruct * ap) { int i; for (i = 0; i < ap->num_sharks; i++) { ap->sharks[i].x = 70000.0 + NRAND(ap->sharksize); ap->sharks[i].y = NRAND(ap->sharksize); ap->sharks[i].z = NRAND(ap->sharksize); ap->sharks[i].psi = NRAND(360) - 180.0; ap->sharks[i].v = 1.0; } /* Random whae direction */ ap->whaledir = LRAND() & 1; ap->dolph.x = 30000.0; ap->dolph.y = 0.0; ap->dolph.z = (float) (ap->sharksize); ap->dolph.psi = (ap->whaledir) ? 90.0 : -90.0; ap->dolph.theta = 0.0; ap->dolph.v = 6.0; ap->momWhale.x = 70000.0; ap->momWhale.y = 0.0; ap->momWhale.z = 0.0; ap->momWhale.psi = (ap->whaledir) ? 90.0 : -90.0; ap->momWhale.theta = 0.0; ap->momWhale.v = 3.0; ap->babyWhale.x = 60000.0; ap->babyWhale.y = -2000.0; ap->babyWhale.z = -2000.0; ap->babyWhale.psi = (ap->whaledir) ? 90.0 : -90.0; ap->babyWhale.theta = 0.0; ap->babyWhale.v = 3.0; } static void Init(atlantisstruct * ap) { static float ambient[] = {0.1, 0.1, 0.1, 1.0}; static float diffuse[] = {1.0, 1.0, 1.0, 1.0}; static float position[] = {0.0, 1.0, 0.0, 0.0}; static float mat_shininess[] = {90.0}; static float mat_specular[] = {0.8, 0.8, 0.8, 1.0}; static float mat_diffuse[] = {0.46, 0.66, 0.795, 1.0}; static float mat_ambient[] = {0.0, 0.1, 0.2, 1.0}; static float lmodel_ambient[] = {0.4, 0.4, 0.4, 1.0}; static float lmodel_localviewer[] = {0.0}; float fblue, fgreen; glFrontFace(GL_CW); glDepthFunc(GL_LEQUAL); glEnable(GL_DEPTH_TEST); glLightfv(GL_LIGHT0, GL_AMBIENT, ambient); glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse); glLightfv(GL_LIGHT0, GL_POSITION, position); glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lmodel_ambient); glLightModelfv(GL_LIGHT_MODEL_LOCAL_VIEWER, lmodel_localviewer); glEnable(GL_LIGHTING); glEnable(GL_LIGHT0); glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, mat_shininess); glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, mat_specular); glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, mat_diffuse); glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, mat_ambient); InitFishs(ap); /* Add a little randomness */ fblue = ((float) (NRAND(50)) / 100.0) + 0.50; fgreen = fblue * 0.56; glClearColor(0.0, fgreen, fblue, 0.0); } static void Reshape(ModeInfo * mi, int width, int height) { atlantisstruct *ap = &atlantis[MI_SCREEN(mi)]; glViewport(0, 0, ap->WinW = (GLint) width, ap->WinH = (GLint) height); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(400.0, (GLdouble) width / (GLdouble) height, 1.0, 2000000.0); glMatrixMode(GL_MODELVIEW); } static void Animate(atlantisstruct * ap) { int i; for (i = 0; i < ap->num_sharks; i++) { SharkPilot(&(ap->sharks[i]), ap->sharkspeed); SharkMiss(ap, i); } WhalePilot(&(ap->dolph), ap->whalespeed, ap->whaledir); ap->dolph.phi++; WhalePilot(&(ap->momWhale), ap->whalespeed, ap->whaledir); ap->momWhale.phi++; WhalePilot(&(ap->babyWhale), ap->whalespeed, ap->whaledir); ap->babyWhale.phi++; } static void AllDisplay(atlantisstruct * ap) { int i; glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); for (i = 0; i < ap->num_sharks; i++) { glPushMatrix(); FishTransform(&(ap->sharks[i])); DrawShark(&(ap->sharks[i]), ap->wire); glPopMatrix(); } glPushMatrix(); FishTransform(&(ap->dolph)); DrawDolphin(&(ap->dolph), ap->wire); glPopMatrix(); glPushMatrix(); FishTransform(&(ap->momWhale)); DrawWhale(&(ap->momWhale), ap->wire); glPopMatrix(); glPushMatrix(); FishTransform(&(ap->babyWhale)); glScalef(0.45, 0.45, 0.3); DrawWhale(&(ap->babyWhale), ap->wire); glPopMatrix(); } /* *----------------------------------------------------------------------------- *----------------------------------------------------------------------------- * Xlock hooks. *----------------------------------------------------------------------------- *----------------------------------------------------------------------------- */ /* *----------------------------------------------------------------------------- * Initialize atlantis. Called each time the window changes. *----------------------------------------------------------------------------- */ void init_atlantis(ModeInfo * mi) { int screen = MI_SCREEN(mi); atlantisstruct *ap; Display *display = MI_DISPLAY(mi); Window window = MI_WINDOW(mi); if (atlantis == NULL) { if ((atlantis = (atlantisstruct *) calloc(MI_NUM_SCREENS(mi), sizeof (atlantisstruct))) == NULL) return; } ap = &atlantis[screen]; ap->num_sharks = MI_COUNT(mi); if (ap->sharks == NULL) { if ((ap->sharks = (fishRec *) calloc(ap->num_sharks, sizeof (fishRec))) == NULL) { /* free everything up to now */ (void) free((void *) atlantis); atlantis = NULL; return; } } ap->sharkspeed = MI_CYCLES(mi); /* has influence on the "width" of the movement */ ap->sharksize = MI_SIZE(mi)?MI_SIZE(mi):SHARKSIZE; /* has influence on the "distance" of the sharks */ ap->whalespeed = whalespeed; ap->wire = MI_IS_WIREFRAME(mi); if (MI_IS_DEBUG(mi)) { (void) fprintf(stderr, "%s:\n\tnum_sharks=%d\n\tsharkspeed=%.1f\n\tsharksize=%d\n\twhalespeed=%.1f\n\twireframe=%s\n", MI_NAME(mi), ap->num_sharks, ap->sharkspeed, ap->sharksize, ap->whalespeed, ap->wire ? "yes" : "no" ); } if ((ap->glx_context = init_GL(mi)) != NULL) { Reshape(mi, MI_WIDTH(mi), MI_HEIGHT(mi)); glDrawBuffer(GL_BACK); Init(ap); AllDisplay(ap); glXSwapBuffers(display, window); } else { MI_CLEARWINDOW(mi); } } /* *----------------------------------------------------------------------------- * Called by the mainline code periodically to update the display. *----------------------------------------------------------------------------- */ void draw_atlantis(ModeInfo * mi) { atlantisstruct *ap = &atlantis[MI_SCREEN(mi)]; Display *display = MI_DISPLAY(mi); Window window = MI_WINDOW(mi); MI_IS_DRAWN(mi) = True; if (!ap->glx_context) return; glXMakeCurrent(display, window, *(ap->glx_context)); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix(); AllDisplay(ap); Animate(ap); glXSwapBuffers(display, window); } /* *----------------------------------------------------------------------------- * The display is being taken away from us. Free up malloc'ed * memory and X resources that we've alloc'ed. Only called * once, we must zap everything for every screen. *----------------------------------------------------------------------------- */ void release_atlantis(ModeInfo * mi) { int screen; if (atlantis != NULL) { for (screen = 0; screen < MI_NUM_SCREENS(mi); screen++) { atlantisstruct *ap = &atlantis[screen]; if (ap->sharks) (void) free((void *) ap->sharks); } (void) free((void *) atlantis); atlantis = NULL; } FreeAllGL(mi); } void refresh_atlantis(ModeInfo * mi) { } void change_atlantis(ModeInfo * mi) { atlantisstruct *ap = &atlantis[MI_SCREEN(mi)]; if (!ap->glx_context) return; glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *(ap->glx_context)); Init(ap); } #endif /* MODE_atlantis */