opelly/Java-N-Body-Simulation
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opelly27
2021-09-07 17:01:44 -07:00
parent 51da4b5f65
commit 4d625f36c4
4 changed files with 38 additions and 14 deletions
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Space.java
+35 -14
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@@ -4,6 +4,15 @@ import java.io.IOException;
import javax.imageio.ImageIO;
import java.awt.Graphics2D;
// ffmpeg -framerate 60 -i %00d.png -c:v -vf format=yuv420p libx264 output.mp4
// ffmpeg -framerate 60 -start_number 1 -i %00d.png -pix_fmt yuv420p out.mp4
// TODO Add circle render method
// TODO Fix random generation of bodies
// TODO Find good timeslice for annimation
// TODO add out of bounds check to setPixel method
public class Space {
Body[] bodies; // List of body objects that make up the simulation
@@ -59,7 +68,13 @@ public class Space {
Canvas canvas = new Canvas( (int) this.height, (int) this.width, 255,255,255,255);
for(int i = 0; i < this.bodies.length; i ++){
canvas.drawSquare(5, (int) this.bodies[i].getXpos(), (int) this.bodies[i].getYpos(), 255, 255, 255, 255);
if(i ==0){
canvas.drawSquare(10, (int) this.bodies[i].getXpos(), (int) this.bodies[i].getYpos(), 255, 255, 255, 255);
}
else{
canvas.drawSquare(2, (int) this.bodies[i].getXpos(), (int) this.bodies[i].getYpos(), 255, 255, 255, 255);
}
}
File f = null;
@@ -75,27 +90,33 @@ public class Space {
public static void main(String args[]){
Body testBody = new Body(2000000, 375, 375, 0, 0);
Body testBody2 = new Body(2, 500, 400, 0, -.5);
Body testBody3 = new Body(2, 200, 400, 0, .5);
Body testBody4 = new Body(2, 200, 500, .5, 0);
Body testBody5 = new Body(2, 200, 200, -.5, 0);
Body[] bodies = new Body[5];
bodies[0] = testBody;
bodies[1] = testBody2;
bodies[2] = testBody3;
bodies[3] = testBody4;
bodies[4] = testBody5;
Body[] bodies = new Body[1000];
bodies[0] = new Body(2000000, 540, 360, 0, 0);
// bodies[1] = new Body(2, 500, 400, 0, -.5);
// bodies[2] = new Body(2, 200, 400, 0, .5);
// bodies[3] = new Body(2, 200, 500, .5, 0);
// bodies[4] = new Body(2, 200, 200, -.5, 0);
// bodies[5] = new Body(2, 150, 150, -.5, .2);
// bodies[6] = new Body(2, 300, 300, -.5, 0);
// bodies[7] = new Body(2, 450, 450, -.5, -.3);
// bodies[8] = new Body(2, 225, 556, -.5, -.5);
Space space = new Space(bodies, 750, 750, .5);
for(int i = 1; i < 1000; i ++){
bodies[i] = new Body(2, Math.random() * 800, Math.random() * 650, Math.random() - 1, Math.random() -1);
}
Space space = new Space(bodies, 1080, 720, 3);
int counter = 0;
while(true){
for(int i = 0; i < 5000; i ++){
space.updateForces();
space.updateVelocities();
space.updatePositions();
//System.out.println(space);
//space.draw();
space.save(counter);
System.out.println(counter);
counter ++;
}