opelly/Java-N-Body-Simulation
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opelly27
2021-09-07 13:04:48 -07:00
parent 51439f6946
commit 14d14aef51
5 changed files with 297 additions and 40 deletions
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Body.java
+25 -20
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@@ -2,7 +2,7 @@
public class Body {
public static final double G = 6.673e-11;
public static final double G = 6.673e-5;
private double mass;
private double px;
private double py;
@@ -50,33 +50,35 @@ public class Body {
double m1 = this.getMass();
double m2 = otherBody.getMass();
double force = G * ((m1 * m2) / distance);
double force = G * ((m1 * m2) / (distance * distance));
return force;
}
public double getAngle(Body otherBody){
double delta_x = otherBody.getXpos() - this.getXpos();
double delta_y = otherBody.getYpos() - this.getYpos();
double theta_radians = Math.atan2(delta_y, delta_x);
return theta_radians;
}
public double getXforce(Body otherBody){
double distance = otherBody.getXpos() - this.getXpos();
double m1 = this.getMass();
double m2 = otherBody.getMass();
double force = G * ((m1 * m2) / distance);
return force;
double scalarForce = this.getForceScalar(otherBody);
double angleDegrees = this.getAngle(otherBody);
double returnDouble = scalarForce * Math.cos(angleDegrees);
return returnDouble;
}
public double getYforce(Body otherBody){
double distance = otherBody.getYpos() - this.getYpos();
double m1 = this.getMass();
double m2 = otherBody.getMass();
double force = G * ((m1 * m2) / distance);
return force;
double scalarForce = this.getForceScalar(otherBody);
double angleDegrees = this.getAngle(otherBody);
double returnDouble = scalarForce * Math.sin(angleDegrees);
return returnDouble;
}
public void calcNetForce(Body[] bodies){
@@ -94,12 +96,15 @@ public class Body {
}
public void updateVelocity(double timeslice){
// TODO: Implament updateVelocity
this.vx = this.vx + ((this.fx / this.mass) * timeslice);
this.vy = this.vy + ((this.fy / this.mass) * timeslice);
}
public void updatePosition(double timeslice){
// TODO: Implament updatePosition
this.px = this.px + (this.vx * timeslice);
this.py = this.py + (this.vy * timeslice);
}