147 lines
3.3 KiB
Plaintext
Executable File
147 lines
3.3 KiB
Plaintext
Executable File
import mathematik.*;
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import teilchen.test.cubicle.*;
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import teilchen.integration.*;
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import verhalten.*;
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import teilchen.*;
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import verhalten.view.*;
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import teilchen.test.particle.behavior.*;
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import teilchen.behavior.*;
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import teilchen.demo.*;
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import teilchen.test.particle.springs.*;
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import teilchen.gestalt.test.*;
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import teilchen.cubicle.*;
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import verhalten.test.*;
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import teilchen.force.flowfield.*;
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import teilchen.test.particle.*;
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import teilchen.gestalt.util.*;
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import teilchen.constraint.*;
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import teilchen.force.vectorfield.*;
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import teilchen.force.*;
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import teilchen.util.*;
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import mathematik.*;
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import teilchen.Physics;
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import teilchen.force.Attractor;
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import teilchen.force.Gravity;
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import teilchen.force.Spring;
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import teilchen.force.ViscousDrag;
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import teilchen.integration.RungeKutta;
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import teilchen.util.Overlap;
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import teilchen.util.StickMan;
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/**
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* this demo shows some advanced use of particles, springs and attractors to create stickmen.
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*/
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Physics mPhysics;
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Attractor mAttractor;
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Gravity mGravity;
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ViscousDrag mViscousDrag;
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StickMan[] mMyStickMan;
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void setup() {
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size(640, 480, OPENGL);
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smooth();
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frameRate(60);
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noFill();
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mPhysics = new Physics();
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mPhysics.setInegratorRef(new RungeKutta());
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mGravity = new Gravity();
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mGravity.force().y = 20;
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mPhysics.add(mGravity);
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mViscousDrag = new ViscousDrag();
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mViscousDrag.coefficient = 0.85f;
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mPhysics.add(mViscousDrag);
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mAttractor = new Attractor();
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mAttractor.radius(500);
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mAttractor.strength(0);
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mAttractor.position().set(width / 2, height / 2);
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mPhysics.add(mAttractor);
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mMyStickMan = new StickMan[20];
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for (int i = 0; i < mMyStickMan.length; i++) {
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mMyStickMan[i] = new StickMan(mPhysics, random(0, width), random(0.3f, 0.6f));
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}
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}
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void draw() {
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mPhysics.step(1f / 60f);
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Overlap.resolveOverlap(mPhysics.particles());
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/* constraint particles */
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for (int i = 0; i < mPhysics.particles().size(); i++) {
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if (mPhysics.particles(i).position().y > height - 10) {
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mPhysics.particles(i).position().y = height - 10;
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}
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if (mPhysics.particles(i).position().x > width) {
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mPhysics.particles(i).position().x = width;
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}
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if (mPhysics.particles(i).position().x < 0) {
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mPhysics.particles(i).position().x = 0;
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}
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}
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/* handle particles */
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if (mousePressed) {
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mAttractor.position().set(mouseX, mouseY);
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if (mouseButton == RIGHT) {
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mAttractor.strength(-500);
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mAttractor.radius(500);
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}
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else {
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mAttractor.strength(500);
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mAttractor.radius(100);
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}
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}
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else {
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mAttractor.strength(0);
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}
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if (keyPressed) {
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mGravity.force().y = -10;
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}
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else {
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mGravity.force().y = 20;
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}
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/* draw */
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background(255);
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/* draw springs */
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stroke(0, 20);
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for (int i = 0; i < mPhysics.forces().size(); i++) {
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if (mPhysics.forces(i) instanceof Spring) {
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Spring mySpring = (Spring)mPhysics.forces(i);
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line(mySpring.a().position().x,
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mySpring.a().position().y,
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mySpring.b().position().x,
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mySpring.b().position().y);
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}
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}
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/* draw particles */
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for (int i = 0; i < mPhysics.particles().size(); i++) {
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ellipse(mPhysics.particles(i).position().x,
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mPhysics.particles(i).position().y, 5, 5);
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}
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/* draw man */
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for (int i = 0; i < mMyStickMan.length; i++) {
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mMyStickMan[i].draw(g);
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}
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}
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