Package net.phys2d.raw.shapes

Examples of net.phys2d.raw.shapes.Polygon

79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
        float angle = (float) (i* 2 * Math.PI/noVerts);
        circleVerts[i] = new Vector2f(
            (float) (Math.cos(angle) * radius[i%radius.length]),
            (float) (Math.sin(angle) * radius[i%radius.length]));
      }
      Polygon circlePolygon = new Polygon(circleVerts);
      Body circle = new Body("circle", circlePolygon, 2);
      circle.setPosition(250, 150);
      world.add(circle);
     
      BasicJoint joint = new BasicJoint(ground, circle, new Vector2f(circle.getPosition()));
      world.add(joint);
    }
    {
      int outerCircleVerts = 30;
      int noVerts = 120;
      Vector2f[] circleVerts = new Vector2f[outerCircleVerts+1 + noVerts+1];
      for( int i = 0; i <= outerCircleVerts; i++ ) {
        float angle = (float) (i* 2 * Math.PI/outerCircleVerts);
        circleVerts[i] = new Vector2f(
            (float) (Math.cos(angle) * 150),
            (float) (Math.sin(angle) * 150));
      }
      float[] radius = {140, 133, 133, 140};
      for( int i = 0; i <= noVerts; i++ ) {
        float angle = (float) (i* 2 * Math.PI/noVerts);
        circleVerts[outerCircleVerts+1 + noVerts-i] = new Vector2f(
            (float) (Math.cos(angle) * radius[i%radius.length]),
            (float) (Math.sin(angle) * radius[i%radius.length]));
      }
      Polygon circlePolygon = new Polygon(circleVerts);
      Body circle = new Body("circle", circlePolygon, 30);
      circle.setPosition(250, 220);
      world.add(circle);
    }
   
    {
      int noVerts = 20;
      Vector2f[] circleVerts = new Vector2f[noVerts];
      float[] radius = {30,20,20,30};
      for( int i = 0; i < noVerts; i++ ) {
        float angle = (float) (i* 2 * Math.PI/noVerts);
        circleVerts[i] = new Vector2f(
            (float) (Math.cos(angle) * radius[i%radius.length]),
            (float) (Math.sin(angle) * radius[i%radius.length]));
      }
      Polygon circlePolygon = new Polygon(circleVerts);
      Body circle = new Body("circle", circlePolygon, 2);
      circle.setPosition(250, 300);
      world.add(circle);
     
      Vector2f[] nonConvexPoly = {new Vector2f(-20,-10), new Vector2f(20,-10), new Vector2f(10,0), new Vector2f(20,10), new Vector2f(-20,10), new Vector2f(-10,0)};
      Polygon poly = new Polygon(nonConvexPoly);
      Body nonConvexBody = new Body("poly", poly, 25);
      nonConvexBody.setPosition(250, 400);
      world.add(nonConvexBody);
     
      BasicJoint joint = new BasicJoint(circle,nonConvexBody, new Vector2f(circle.getPosition()));
View Full Code Here
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
public class PolygonPolygonCollider implements Collider {
  /**
   * @see net.phys2d.raw.collide.Collider#collide(net.phys2d.raw.Contact[], net.phys2d.raw.Body, net.phys2d.raw.Body)
   */
  public int collide(Contact[] contacts, Body bodyA, Body bodyB) {
    Polygon polyA = (Polygon) bodyA.getShape();
    Polygon polyB = (Polygon) bodyB.getShape();

    Vector2f[] vertsA = polyA.getVertices(bodyA.getPosition(), bodyA.getRotation());
    Vector2f[] vertsB = polyB.getVertices(bodyB.getPosition(), bodyB.getRotation());
   
    Vector2f centroidA = new Vector2f(polyA.getCentroid());
    centroidA.add(bodyA.getPosition());
    Vector2f centroidB = new Vector2f(polyB.getCentroid());
    centroidB.add(bodyB.getPosition());
   
    int[][] collEdgeCands = getCollisionCandidates(vertsA, vertsB, centroidA, centroidB);
    Intersection[][] intersections = getIntersectionPairs(vertsA, vertsB, collEdgeCands);   
    return populateContacts(contacts, vertsA, vertsB, intersections);
View Full Code Here
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
  /**
   * @see net.phys2d.raw.collide.Collider#collide(net.phys2d.raw.Contact[], net.phys2d.raw.Body, net.phys2d.raw.Body)
   */
  public int collide(Contact[] contacts, Body bodyA, Body bodyB) {
    Line line = (Line) bodyA.getShape();
    Polygon poly = (Polygon) bodyB.getShape();
   
    // TODO: this can be optimized using matrix multiplications and moving only one shape
    // specifically the line, because it has only two vertices
    Vector2f[] vertsA = line.getVertices(bodyA.getPosition(), bodyA.getRotation());
    Vector2f[] vertsB = poly.getVertices(bodyB.getPosition(), bodyB.getRotation());

    Vector2f pos = poly.getCentroid(bodyB.getPosition(), bodyB.getRotation());
   
    // using the z axis of a 3d cross product we determine on what side B is
    boolean isLeftOf = 0 > (pos.x - vertsA[0].x) * (vertsA[1].y - vertsA[0].y) - (vertsA[1].x - vertsA[0].x) * (pos.y - vertsA[0].y);
   
    // to get the proper intersection pairs we make sure
View Full Code Here
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
  /**
   * @see net.phys2d.raw.collide.Collider#collide(net.phys2d.raw.Contact[], net.phys2d.raw.Body, net.phys2d.raw.Body)
   */
  public int collide(Contact[] contacts, Body bodyA, Body bodyB) {
    Polygon poly = (Polygon) bodyA.getShape();
    Box box = (Box) bodyB.getShape();
   
    // TODO: this can be optimized using matrix multiplications and moving only one shape
    // specifically the box, because it has fewer vertices.
    Vector2f[] vertsA = poly.getVertices(bodyA.getPosition(), bodyA.getRotation());
    Vector2f[] vertsB = box.getPoints(bodyB.getPosition(), bodyB.getRotation());
   
    // TODO: use a sweepline that has the smallest projection of the box
    // now we use just an arbitrary one
    Vector2f sweepline = new Vector2f(vertsB[1]);
View Full Code Here
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
 
  /**
   * @see net.phys2d.raw.collide.Collider#collide(net.phys2d.raw.Contact[], net.phys2d.raw.Body, net.phys2d.raw.Body)
   */
  public int collide(Contact[] contacts, Body bodyA, Body bodyB) {
    Polygon polyA = (Polygon) bodyA.getShape();
    Circle circle = (Circle) bodyB.getShape();
   
    // TODO: this can be optimized using matrix multiplications and moving only the circle
    Vector2f[] vertsA = polyA.getVertices(bodyA.getPosition(), bodyA.getRotation());
   
    Vector2f centroidA = new Vector2f(polyA.getCentroid());
    centroidA.add(bodyA.getPosition());

   
    int[][] collPairs = getCollisionCandidates(vertsA, centroidA, circle.getRadius(), bodyB.getPosition());

View Full Code Here
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
public class PolygonPolygonCollider
  implements Collider
{
  public int collide(Contact[] paramArrayOfContact, Body paramBody1, Body paramBody2)
  {
    Polygon localPolygon1 = (Polygon)paramBody1.getShape();
    Polygon localPolygon2 = (Polygon)paramBody2.getShape();
    Vector2f[] arrayOfVector2f1 = localPolygon1.getVertices(paramBody1.getPosition(), paramBody1.getRotation());
    Vector2f[] arrayOfVector2f2 = localPolygon2.getVertices(paramBody2.getPosition(), paramBody2.getRotation());
    Vector2f localVector2f1 = new Vector2f(localPolygon1.getCentroid());
    localVector2f1.add(paramBody1.getPosition());
    Vector2f localVector2f2 = new Vector2f(localPolygon2.getCentroid());
    localVector2f2.add(paramBody2.getPosition());
    int[][] arrayOfInt = getCollisionCandidates(arrayOfVector2f1, arrayOfVector2f2, localVector2f1, localVector2f2);
    Intersection[][] arrayOfIntersection = getIntersectionPairs(arrayOfVector2f1, arrayOfVector2f2, arrayOfInt);
    return populateContacts(paramArrayOfContact, arrayOfVector2f1, arrayOfVector2f2, arrayOfIntersection);
  }
View Full Code Here
11
12
13
14
15
16
17
18
19
20
21
22
23
24
public class LinePolygonCollider extends PolygonPolygonCollider
{
  public int collide(Contact[] paramArrayOfContact, Body paramBody1, Body paramBody2)
  {
    Line localLine = (Line)paramBody1.getShape();
    Polygon localPolygon = (Polygon)paramBody2.getShape();
    Vector2f[] arrayOfVector2f1 = localLine.getVertices(paramBody1.getPosition(), paramBody1.getRotation());
    Vector2f[] arrayOfVector2f2 = localPolygon.getVertices(paramBody2.getPosition(), paramBody2.getRotation());
    Vector2f localVector2f1 = localPolygon.getCentroid(paramBody2.getPosition(), paramBody2.getRotation());
    int i = 0.0F > (localVector2f1.x - arrayOfVector2f1[0].x) * (arrayOfVector2f1[1].y - arrayOfVector2f1[0].y) - (arrayOfVector2f1[1].x - arrayOfVector2f1[0].x) * (localVector2f1.y - arrayOfVector2f1[0].y) ? 1 : 0;
    if (i != 0)
    {
      localVector2f2 = arrayOfVector2f1[0];
      arrayOfVector2f1[0] = arrayOfVector2f1[1];
View Full Code Here
8
9
10
11
12
13
14
15
16
17
18
19
20
public class PolygonBoxCollider extends PolygonPolygonCollider
{
  public int collide(Contact[] paramArrayOfContact, Body paramBody1, Body paramBody2)
  {
    Polygon localPolygon = (Polygon)paramBody1.getShape();
    Box localBox = (Box)paramBody2.getShape();
    Vector2f[] arrayOfVector2f1 = localPolygon.getVertices(paramBody1.getPosition(), paramBody1.getRotation());
    Vector2f[] arrayOfVector2f2 = localBox.getPoints(paramBody2.getPosition(), paramBody2.getRotation());
    Vector2f localVector2f = new Vector2f(arrayOfVector2f2[1]);
    localVector2f.sub(arrayOfVector2f2[2]);
    EdgeSweep localEdgeSweep = new EdgeSweep(localVector2f);
    localEdgeSweep.addVerticesToSweep(true, arrayOfVector2f1);
View Full Code Here
10
11
12
13
14
15
16
17
18
19
20
21
22
23
public class PolygonCircleCollider extends PolygonPolygonCollider
{
  public int collide(Contact[] paramArrayOfContact, Body paramBody1, Body paramBody2)
  {
    Polygon localPolygon = (Polygon)paramBody1.getShape();
    Circle localCircle = (Circle)paramBody2.getShape();
    Vector2f[] arrayOfVector2f = localPolygon.getVertices(paramBody1.getPosition(), paramBody1.getRotation());
    Vector2f localVector2f1 = new Vector2f(localPolygon.getCentroid());
    localVector2f1.add(paramBody1.getPosition());
    int[][] arrayOfInt = getCollisionCandidates(arrayOfVector2f, localVector2f1, localCircle.getRadius(), paramBody2.getPosition());
    int i = 0;
    for (int j = 0; j < arrayOfInt.length; j++)
    {
View Full Code Here
TOP

Related Classes of net.phys2d.raw.shapes.Polygon

  • net.phys2d.math.Vector2f
  • net.phys2d.raw.collide.LinePolygonCollider
  • net.phys2d.raw.collide.PolygonBoxCollider
  • net.phys2d.raw.collide.PolygonCircleCollider
  • net.phys2d.raw.collide.PolygonPolygonCollider
  • net.phys2d.raw.test.GearDemo
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.