import org.andengine.util.algorithm.collision.LineCollisionChecker; //导入依赖的package包/类
@Override
public boolean collidesWith(final IEntity pOtherEntity) {
	if (pOtherEntity instanceof Line) {
		final Line otherLine = (Line) pOtherEntity;
		return LineCollisionChecker.checkLineCollision(this.mX, this.mY, this.mX2, this.mY2, otherLine.mX, otherLine.mY, otherLine.mX2, otherLine.mY2);
	} else {
		return super.collidesWith(pOtherEntity);
	}
}
 

import org.andengine.util.algorithm.collision.LineCollisionChecker; //导入依赖的package包/类
@Override
public boolean collidesWith(final IShape pOtherShape) {
	if(pOtherShape instanceof Line) {
		final Line otherLine = (Line) pOtherShape;
		return LineCollisionChecker.checkLineCollision(this.mX, this.mY, this.mX2, this.mY2, otherLine.mX, otherLine.mY, otherLine.mX2, otherLine.mY2);
	} else if(pOtherShape instanceof RectangularShape) {
		return RectangularShapeCollisionChecker.checkCollision((RectangularShape) pOtherShape, this);
	} else {
		return false;
	}
}