int physics_fixture_create(int world)
{
get_worldr(sb2dworld, world, -1);
int i = fixtures.size();
fixtureInstance* fixture = new fixtureInstance();
b2BodyDef bodyDef;
bodyDef.type = b2_dynamicBody;
fixture->body = sb2dworld->world->CreateBody(&bodyDef);
fixtures.push_back(fixture);
fixtures[i]->world = world;
return i;
}
int b2d_joint_create_mouse(int world, int bodya, int bodyb, bool collide, double x, double y)
{
get_worldr(b2dworld, world, -1);
b2MouseJointDef jointDef;
jointDef.bodyA = b2dbodies[bodya]->body;
jointDef.bodyB = b2dbodies[bodyb]->body;
jointDef.target.Set(x, y);
jointDef.maxForce = 30000;
jointDef.collideConnected = collide;
B2DJoint* b2djoint = new B2DJoint();
b2djoint->joint = b2dworld->world->CreateJoint(&jointDef);
b2djoint->worldid = world;
b2djoints.push_back(b2djoint);
return b2djoints.size() - 1;
}
int b2d_joint_create_distance(int world, int bodya, int bodyb, bool collide)
{
get_worldr(b2dworld, world, -1);
b2DistanceJointDef jointDef;
jointDef.bodyA = b2dbodies[bodya]->body;
jointDef.bodyB = b2dbodies[bodyb]->body;
jointDef.collideConnected = collide;
jointDef.frequencyHz = 4.0f;
jointDef.dampingRatio = 0.5f;
B2DJoint* b2djoint = new B2DJoint();
b2djoint->joint = b2dworld->world->CreateJoint(&jointDef);
b2djoint->worldid = world;
b2djoints.push_back(b2djoint);
return b2djoints.size() - 1;
}
int b2d_joint_create_revolute(int world, int bodya, int bodyb, bool limit, double lower, double upper)
{
get_worldr(b2dworld, world, -1);
get_bodyr(b2dbodya, bodya, -1);
get_bodyr(b2dbodyb, bodyb, -1);
b2RevoluteJointDef jointDef;
jointDef.bodyA = b2dbodya->body;
jointDef.bodyB = b2dbodyb->body;
jointDef.lowerAngle = cs_angular_degrees(lower);
jointDef.upperAngle = cs_angular_degrees(upper);
jointDef.localAnchorA = b2Vec2(0,0);
jointDef.localAnchorB =b2Vec2(1,1);
jointDef.enableLimit = limit;
B2DJoint* b2djoint = new B2DJoint();
b2djoint->joint = b2dworld->world->CreateJoint(&jointDef);
b2djoint->worldid = world;
b2djoints.push_back(b2djoint);
return b2djoints.size() - 1;
}
