Skip to content

Commit

Permalink
Added Chain and Edge shapes to PhysicsFactory
Browse files Browse the repository at this point in the history 
Commented Factory methods for Line Shapes removed.
Support for optional adjacent vertices for smooth collisions of Edges may be added if required.
  • Loading branch information
@ptekchand
ptekchand committed Jul 26, 2012
1 parent 8f98edd commit 6c6b0a6
Showing 1 changed file with 57 additions and 38 deletions.
95 changes: 57 additions & 38 deletions src/org/andengine/extension/physics/box2d/PhysicsFactory.java
View file
Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,9 @@
import com.badlogic.gdx.physics.box2d.Body;
import com.badlogic.gdx.physics.box2d.BodyDef;
import com.badlogic.gdx.physics.box2d.BodyDef.BodyType;
import com.badlogic.gdx.physics.box2d.ChainShape;
import com.badlogic.gdx.physics.box2d.CircleShape;
import com.badlogic.gdx.physics.box2d.EdgeShape;
import com.badlogic.gdx.physics.box2d.Filter;
import com.badlogic.gdx.physics.box2d.Fixture;
import com.badlogic.gdx.physics.box2d.FixtureDef;
Expand Down Expand Up @@ -125,6 +127,34 @@ public static Body createBoxBody(final PhysicsWorld pPhysicsWorld, final float p
return boxBody;
}


public static Body createChainBody(final PhysicsWorld pPhysicsWorld, final Vector2[] vertices, final BodyType pBodyType, final FixtureDef pFixtureDef, final float pPixelToMeterRatio) {
return PhysicsFactory.createChainBody(pPhysicsWorld, 0, 0, vertices, 0, pBodyType, pFixtureDef, pPixelToMeterRatio);
}

public static Body createChainBody(final PhysicsWorld pPhysicsWorld, final float pCenterX, final float pCenterY, final Vector2[] vertices, final float pRotation, final BodyType pBodyType, final FixtureDef pFixtureDef, final float pPixelToMeterRatio) {
final BodyDef chainBodyDef = new BodyDef();
chainBodyDef.type = pBodyType;

chainBodyDef.position.x = pCenterX / pPixelToMeterRatio;
chainBodyDef.position.y = pCenterY / pPixelToMeterRatio;

chainBodyDef.angle = MathUtils.degToRad(pRotation);

final Body chainBody = pPhysicsWorld.createBody(chainBodyDef);

final ChainShape chainPoly = new ChainShape();
pFixtureDef.shape = chainPoly;

chainPoly.createChain(vertices);

chainBody.createFixture(pFixtureDef);

chainPoly.dispose();

return chainBody;
}

public static Body createCircleBody(final PhysicsWorld pPhysicsWorld, final IAreaShape pAreaShape, final BodyType pBodyType, final FixtureDef pFixtureDef) {
return PhysicsFactory.createCircleBody(pPhysicsWorld, pAreaShape, pBodyType, pFixtureDef, PIXEL_TO_METER_RATIO_DEFAULT);
}
Expand Down Expand Up @@ -172,44 +202,33 @@ public static Body createCircleBody(final PhysicsWorld pPhysicsWorld, final floa
return circleBody;
}

// Line types were removed from Box2D 2.2.1 (Must create a box?)
// public static Body createLineBody(final PhysicsWorld pPhysicsWorld, final Line pLine, final FixtureDef pFixtureDef) {
// return PhysicsFactory.createLineBody(pPhysicsWorld, pLine, pFixtureDef, PIXEL_TO_METER_RATIO_DEFAULT);
// }
//
// public static Body createLineBody(final PhysicsWorld pPhysicsWorld, final Line pLine, final FixtureDef pFixtureDef, final float pPixelToMeterRatio) {
// final float[] sceneCoordinates = pLine.convertLocalToSceneCoordinates(0, 0);
// final float x1 = sceneCoordinates[Constants.VERTEX_INDEX_X];
// final float y1 = sceneCoordinates[Constants.VERTEX_INDEX_Y];
//
// pLine.convertLocalToSceneCoordinates(pLine.getX2() - pLine.getX1(), pLine.getY2() - pLine.getY1());
// final float x2 = sceneCoordinates[Constants.VERTEX_INDEX_X];
// final float y2 = sceneCoordinates[Constants.VERTEX_INDEX_Y];
//
// return PhysicsFactory.createLineBody(pPhysicsWorld, x1, y1, x2, y2, pFixtureDef, pPixelToMeterRatio);
// }
//
// public static Body createLineBody(final PhysicsWorld pPhysicsWorld, final float pX1, final float pY1, final float pX2, final float pY2, final FixtureDef pFixtureDef) {
// return PhysicsFactory.createLineBody(pPhysicsWorld, pX1, pY1, pX2, pY2, pFixtureDef, PIXEL_TO_METER_RATIO_DEFAULT);
// }
//
// public static Body createLineBody(final PhysicsWorld pPhysicsWorld, final float pX1, final float pY1, final float pX2, final float pY2, final FixtureDef pFixtureDef, final float pPixelToMeterRatio) {
// final BodyDef lineBodyDef = new BodyDef();
// lineBodyDef.type = BodyType.StaticBody;
//
// final Body boxBody = pPhysicsWorld.createBody(lineBodyDef);
//
// final PolygonShape linePoly = new PolygonShape();
//
// linePoly.setAsEdge(new Vector2(pX1 / pPixelToMeterRatio, pY1 / pPixelToMeterRatio), new Vector2(pX2 / pPixelToMeterRatio, pY2 / pPixelToMeterRatio));
// pFixtureDef.shape = linePoly;
//
// boxBody.createFixture(pFixtureDef);
//
// linePoly.dispose();
//
// return boxBody;
// }
// Line types were removed from Box2D 2.2.1. An Edge might be used instead.
public static Body createEdgeBody(final PhysicsWorld pPhysicsWorld, final Vector2 v1, final Vector2 v2, final BodyType pBodyType, final FixtureDef pFixtureDef, final float pPixelToMeterRatio) {
return PhysicsFactory.createEdgeBody(pPhysicsWorld, 0, 0, v1, v2, 0, pBodyType, pFixtureDef, pPixelToMeterRatio);
}

public static Body createEdgeBody(final PhysicsWorld pPhysicsWorld, final float pCenterX, final float pCenterY, final Vector2 v1, final Vector2 v2, final float pRotation, final BodyType pBodyType, final FixtureDef pFixtureDef, final float pPixelToMeterRatio) {
final BodyDef edgeBodyDef = new BodyDef();
edgeBodyDef.type = pBodyType;

edgeBodyDef.position.x = pCenterX / pPixelToMeterRatio;
edgeBodyDef.position.y = pCenterY / pPixelToMeterRatio;

edgeBodyDef.angle = MathUtils.degToRad(pRotation);

final Body edgeBody = pPhysicsWorld.createBody(edgeBodyDef);

final EdgeShape edgePoly = new EdgeShape();
pFixtureDef.shape = edgePoly;

edgePoly.set(v1, v2);

edgeBody.createFixture(pFixtureDef);

edgePoly.dispose();

return edgeBody;
}

/**
* @param pPhysicsWorld
Expand Down

0 comments on commit 6c6b0a6

Please sign in to comment.