diff options
Diffstat (limited to 'distrib/sdl-1.2.15/Xcode/TemplatesForXcodeTiger/SDL OpenGL Application/atlantis/swim.c')
| -rw-r--r-- | distrib/sdl-1.2.15/Xcode/TemplatesForXcodeTiger/SDL OpenGL Application/atlantis/swim.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/Xcode/TemplatesForXcodeTiger/SDL OpenGL Application/atlantis/swim.c b/distrib/sdl-1.2.15/Xcode/TemplatesForXcodeTiger/SDL OpenGL Application/atlantis/swim.c new file mode 100644 index 0000000..cac7b60 --- /dev/null +++ b/distrib/sdl-1.2.15/Xcode/TemplatesForXcodeTiger/SDL OpenGL Application/atlantis/swim.c @@ -0,0 +1,188 @@ +/** + * (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 + * Unpublished-- rights reserved under the copyright laws of the + * United States.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. + */ +#include <math.h> +#include <stdlib.h> /* For rand(). */ +#include <GLUT/glut.h> +#include "atlantis.h" + +void +FishTransform(fishRec * fish) +{ + + glTranslatef(fish->y, fish->z, -fish->x); + glRotatef(-fish->psi, 0.0, 1.0, 0.0); + glRotatef(fish->theta, 1.0, 0.0, 0.0); + glRotatef(-fish->phi, 0.0, 0.0, 1.0); +} + +void +WhalePilot(fishRec * fish) +{ + + fish->phi = -20.0; + fish->theta = 0.0; + fish->psi -= 0.5; + + fish->x += WHALESPEED * fish->v * cos(fish->psi / RAD) * cos(fish->theta / RAD); + fish->y += WHALESPEED * fish->v * sin(fish->psi / RAD) * cos(fish->theta / RAD); + fish->z += WHALESPEED * fish->v * sin(fish->theta / RAD); +} + +void +SharkPilot(fishRec * fish) +{ + static int sign = 1; + float X, Y, Z, tpsi, ttheta, thetal; + + fish->xt = 60000.0; + fish->yt = 0.0; + fish->zt = 0.0; + + X = fish->xt - fish->x; + Y = fish->yt - fish->y; + Z = fish->zt - fish->z; + + thetal = fish->theta; + + ttheta = RAD * atan(Z / (sqrt(X * X + Y * Y))); + + if (ttheta > fish->theta + 0.25) { + fish->theta += 0.5; + } else if (ttheta < fish->theta - 0.25) { + fish->theta -= 0.5; + } + if (fish->theta > 90.0) { + fish->theta = 90.0; + } + if (fish->theta < -90.0) { + fish->theta = -90.0; + } + fish->dtheta = fish->theta - thetal; + + tpsi = RAD * atan2(Y, X); + + fish->attack = 0; + + if (fabs(tpsi - fish->psi) < 10.0) { + fish->attack = 1; + } else if (fabs(tpsi - fish->psi) < 45.0) { + if (fish->psi > tpsi) { + fish->psi -= 0.5; + if (fish->psi < -180.0) { + fish->psi += 360.0; + } + } else if (fish->psi < tpsi) { + fish->psi += 0.5; + if (fish->psi > 180.0) { + fish->psi -= 360.0; + } + } + } else { + if (rand() % 100 > 98) { + sign = 1 - sign; + } + fish->psi += sign; + if (fish->psi > 180.0) { + fish->psi -= 360.0; + } + if (fish->psi < -180.0) { + fish->psi += 360.0; + } + } + + if (fish->attack) { + if (fish->v < 1.1) { + fish->spurt = 1; + } + if (fish->spurt) { + fish->v += 0.2; + } + if (fish->v > 5.0) { + fish->spurt = 0; + } + if ((fish->v > 1.0) && (!fish->spurt)) { + fish->v -= 0.2; + } + } else { + if (!(rand() % 400) && (!fish->spurt)) { + fish->spurt = 1; + } + if (fish->spurt) { + fish->v += 0.05; + } + if (fish->v > 3.0) { + fish->spurt = 0; + } + if ((fish->v > 1.0) && (!fish->spurt)) { + fish->v -= 0.05; + } + } + + fish->x += SHARKSPEED * fish->v * cos(fish->psi / RAD) * cos(fish->theta / RAD); + fish->y += SHARKSPEED * fish->v * sin(fish->psi / RAD) * cos(fish->theta / RAD); + fish->z += SHARKSPEED * fish->v * sin(fish->theta / RAD); +} + +void +SharkMiss(int i) +{ + int j; + float avoid, thetal; + float X, Y, Z, R; + + for (j = 0; j < NUM_SHARKS; j++) { + if (j != i) { + X = sharks[j].x - sharks[i].x; + Y = sharks[j].y - sharks[i].y; + Z = sharks[j].z - sharks[i].z; + + R = sqrt(X * X + Y * Y + Z * Z); + + avoid = 1.0; + thetal = sharks[i].theta; + + if (R < SHARKSIZE) { + if (Z > 0.0) { + sharks[i].theta -= avoid; + } else { + sharks[i].theta += avoid; + } + } + sharks[i].dtheta += (sharks[i].theta - thetal); + } + } +} |