/// <summary>
/// set options for fragment rigid bodies and layer
/// </summary>
public void SetFragmentPhysicsOptions(Exploder2DObject.FragmentOption options)
{
if (pool != null)
{
foreach (var fragment in pool)
{
if (fragment)
{
fragment.SetFragmentPhysicsOptions(options);
}
}
}
}
public void SetFragmentPhysicsOptions(Exploder2DObject.FragmentOption opt)
{
if (gameObject)
{
gameObject.layer = LayerMask.NameToLayer(opt.Layer);
// if (spriteRenderer)
// {
// spriteRenderer.sortingLayerName = opt.SortingLayer;
// spriteRenderer.sortingOrder = opt.OrderInLayer;
// }
DisableColliders(opt.DisableColliders);
}
}
/// <summary>
/// apply physical explosion to fragment piece (2D case)
/// </summary>
public void ApplyExplosion2D(Transform meshTransform, Vector2 centroid, Vector2 mainCentroid,
Exploder2DObject.FragmentOption fragmentOption,
bool useForceVector, Vector2 ForceVector, float force, GameObject original,
int targetFragments)
{
var rigid = rigid2D;
// apply fragment mass and velocity properties
var parentVelocity = Vector2.zero;
var parentAngularVelocity = 0.0f;
var mass = fragmentOption.Mass;
var gravityScale = fragmentOption.GravityScale;
// inherit velocity and mass from original object
if (fragmentOption.InheritParentPhysicsProperty)
{
if (original && original.GetComponent <Rigidbody2D>())
{
var parentRigid = original.GetComponent <Rigidbody2D>();
parentVelocity = parentRigid.velocity;
parentAngularVelocity = parentRigid.angularVelocity;
mass = parentRigid.mass / targetFragments;
gravityScale = parentRigid.gravityScale;
}
}
var centroidTransformed = meshTransform.TransformPoint(centroid);
Vector2 forceVector = (new Vector2(centroidTransformed.x, centroidTransformed.y) - mainCentroid).normalized;
float angularVelocity = fragmentOption.AngularVelocity * (fragmentOption.RandomAngularVelocityVector ? Random.insideUnitCircle.x : fragmentOption.AngularVelocityVector.y);
if (useForceVector)
{
forceVector = ForceVector;
}
rigid.velocity = forceVector * force + parentVelocity;
rigid.angularVelocity = angularVelocity + parentAngularVelocity;
rigid.mass = mass;
maxVelocity = fragmentOption.MaxVelocity;
rigid.gravityScale = gravityScale;
}
