public override void UpdateBehavior(FluidSimulation sim, FluidSimulation.PhysicObject physicObject)
{
// PARAMS FOR OBJECTS
// How much they are in the water
// How fast they rotate
float y;
Vector3 normal = sim.GetYNormal(physicObject.gao.transform.position.x, physicObject.gao.transform.position.z, out y);
var rigidBody = physicObject.gao.GetComponent <Rigidbody>();
if (rigidBody)
{
/*
* rigidBody.isKinematic = true;
* physicObjects[i].transform.position = new Vector3(physicObjects[i].transform.position.x, y, physicObjects[i].transform.position.z);
* physicObjects[i].transform.rotation = Quaternion.FromToRotation(Vector3.up, normal);
*/
if (y > 0.0f)
{
float mv = physicObject.volume / rigidBody.mass;
float height = 0.0f;
var objCollider = physicObject.gao.GetComponent <Collider>();
if (objCollider)
{
height = objCollider.bounds.size.y;
}
//Debug.Log("Mass=" + rigidBody.mass + ", volume=" + physicObjects[i].volume + ", mv=" + mv + ", height = " + height);
float PercentageInFluid = 1.0f - (physicObject.gao.transform.position.y - y + (height / 2.0f)) / height;
float Ratio = 1.0f - physicObject.gao.transform.position.y / y;
//Debug.Log("pos = " + physicObjects[i].gao.transform.position.y + ", y=" + y + ", Ratio = " + Ratio + ", Height=" + PercentageInFluid);
// compute mass in fluid
float massInsideFluid = PercentageInFluid * physicObject.volume; //1.0 = liquid vm
float massOutsideFluid = (1.0f - PercentageInFluid) * rigidBody.mass;
float archimedRatio = massInsideFluid / (massInsideFluid + massOutsideFluid);
// Update submerged volume
float newSubmergedVolume = PercentageInFluid * physicObject.volume;
float deltaSubmergedVolume = newSubmergedVolume - physicObject.submergedVolume;
physicObject.submergedVolume = newSubmergedVolume;
//Debug.Log("Mass in fluid=" + massInsideFluid + ", Mass outside fluid= " + massOutsideFluid + ", ArchiRatio=" + archimedRatio + ", Volume=" + physicObjects[i].volume);
// submerge volume effect
int index = sim.GetArrayIndexFromPos(physicObject.gao.transform.position);
/*
* if (index >= 0)
* speedY[index] += deltaSubmergedVolume * 2.0f;
*/
/* physic effect temporarily removed
* if(index >= 0)
* simulation.SetSpeed(index, simulation.GetSpeed(index) + deltaSubmergedVolume * 2.0f);
*
* rigidBody.AddForce((0.2f * archimedRatio * mv * normal * Physics.gravity.magnitude), ForceMode.Force);
* if (rigidBody.velocity.y < 0.0f)
* rigidBody.velocity = rigidBody.velocity * 0.98f;
*/
/*
* if (Ratio > 0.0f)
* {
* rigidBody.AddForce(mv * normal * Physics.gravity.magnitude * (0.25f + Ratio * 0.25f), ForceMode.Force);
* if (rigidBody.velocity.y < 0.0f)
* rigidBody.velocity = rigidBody.velocity * 0.98f;
* }
*/
}
/*
* objectsSpeed[i] = (objectsSpeed[i] + normal) * 0.95f;
* Vector3 Dest = floatingObjects[i].transform.position + objectsSpeed[i] * Time.deltaTime;
* Dest.y = y;
* floatingObjects[i].transform.position = Vector3.Lerp(floatingObjects[i].transform.position, Dest, 0.3f);
* floatingObjects[i].transform.rotation = Quaternion.RotateTowards(floatingObjects[i].transform.rotation, Quaternion.FromToRotation(Vector3.up, normal), 0.3f);
*/
}
else
{
physicObject.gao.transform.position = new Vector3(physicObject.gao.transform.position.x, y, physicObject.gao.transform.position.z);
physicObject.gao.transform.rotation = Quaternion.FromToRotation(Vector3.up, normal);
}
}
