Source code of Windows XP (NT5)
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3.3 KiB

#include <windows.h>
#include <stdlib.h>
#include <math.h>
#include <GL/gl.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);
}
}
}