// Update is called once per frame
void Update()
{
part_near = new List <GameObject> [particles_count];
for (int i = 0; i < _grid_width; i++)
{
for (int j = 0; j < _grid_height; j++)
{
_grid[i, j].Clear();
}
}
for (int i = 0; i < particles_count; i++)
{
int x = (int)((particles[i].transform.position.x + _grid_width / 2));
int y = (int)((particles[i].transform.position.y + _grid_height / 2));
_grid[x, y].Add(particles[i]);
}
for (int i = 0; i < particles_count; i++)
{
Fluid_particle g = particles[i].GetComponent <Fluid_particle>();
g.ro = 0;
g.ro_near = 0;
g.press = 0;
g.press_near = 0;
part_near[i] = near_part(i);
}
foreach (GameObject i in part_near[0])
{
Debug.Log(i.name);
Debug.Log("x" + (int)(i.transform.position.x + _grid_width / 2));
Debug.Log("y" + (int)(i.transform.position.y + _grid_height / 2));
Debug.Log("k" + h);
}
}
// Update is called once per frame
void Update()
{
part_near = new Collider2D[particles_count][];
part_d = new float[particles_count][];
part_q = new float[particles_count][];
for (int i = 0; i < particles_count; i++)
{
Fluid_particle g = particles[i].GetComponent <Fluid_particle>();
g.ro = 0;
g.ro_near = 0;
g.press = 0;
g.press_near = 0;
g.a = Vector2.zero;
g.mass = mass;
}
for (int i = 0; i < particles_count; i++)
{
Fluid_particle p = particles[i].GetComponent <Fluid_particle>();
part_near[i] = (Physics2D.OverlapCircleAll(particles[i].transform.position, h - (scale / 2), 1 << 4 | 1 << 9));
part_d[i] = new float[part_near[i].Length];
part_q[i] = new float[part_near[i].Length];
for (int j = 0; j < part_near[i].Length; j++)
{
part_d[i][j] = Vector2.Distance(particles[i].transform.position, part_near[i][j].transform.position);
part_q[i][j] = 1 - (part_d[i][j] / h);
if (part_d[i][j] > 0)
{
p.ro += (part_q[i][j] * part_q[i][j]);
p.ro_near += (part_q[i][j] * part_q[i][j] * part_q[i][j]);
if (part_near[i][j].gameObject.layer == 9)
{
continue;
}
Fluid_particle q = part_near[i][j].GetComponent <Fluid_particle>();
q.ro += (part_q[i][j] * part_q[i][j]);
q.ro_near += (part_q[i][j] * part_q[i][j] * part_q[i][j]);
}
}
}
for (int i = 0; i < particles_count; i++)
{
Fluid_particle p = particles[i].GetComponent <Fluid_particle>();
p.press = k * (p.ro - rest_ro);
p.press_near = k_near * p.ro_near;
}
for (int i = 0; i < particles_count; i++)
{
Vector2 s = Vector2.zero;
Fluid_particle p = particles[i].GetComponent <Fluid_particle>();
for (int j = 0; j < part_near[i].Length; j++)
{
Fluid_particle q = part_near[i][j].GetComponent <Fluid_particle>();
if (part_near[i][j].gameObject.layer == 4)
{
if (part_d[i][j] > 0)
{
float q1 = part_q[i][j];
float q2 = q1 * q1;
Vector2 tmp = (p.transform.position - q.transform.position) * ((p.press + q.press) * q1 + (p.press_near + q.press_near) * q2) / part_d[i][j];
q.a += tmp;
s += tmp;
}
}
else if (part_near[i][j].gameObject.layer == 9)
{
float q1 = part_q[i][j];
float q2 = q1 * q1;
Vector2 tmp = (part_near[i][j].transform.position - p.transform.position) * ((p.press + 500) * q1 + (p.press_near + 500) * q2) / part_d[i][j];
s += tmp;
}
}
p.a -= s;
}
}
// Update is called once per frame
void FixedUpdate()
{
part_near = new Collider2D[particles_count][];
part_d = new float[particles_count][];
part_q = new float[particles_count][];
for (int i = 0; i < particles_count; i++)
{
if (particles[i] == null)
{
continue;
}
Fluid_particle g = particles[i].GetComponent <Fluid_particle>();
g.ro = 0;
g.ro_near = 0;
g.press = 0;
g.press_near = 0;
g.a = Vector2.zero;
g.mass = mass;
//g.GetComponent<Rigidbody2D>().velocity = Vector2.zero;
g.a += new Vector2(0, -98f * 2);
}
for (int i = 0; i < particles_count; i++)
{
if (particles[i] == null)
{
continue;
}
Fluid_particle p = particles[i].GetComponent <Fluid_particle>();
part_near[i] = (Physics2D.OverlapCircleAll(particles[i].transform.position, h - (scale / 2) - 0.2f, 1 << 4));
part_d[i] = new float[part_near[i].Length];
part_q[i] = new float[part_near[i].Length];
//p.ro_near = 0.05f;
//p.ro = 0.15f;
for (int j = 0; j < part_near[i].Length; j++)
{
if (part_near[i][j] == null)
{
continue;
}
part_d[i][j] = Vector2.Distance(particles[i].transform.position, part_near[i][j].transform.position);
part_q[i][j] = 1 - (part_d[i][j] / h);
if (part_d[i][j] > 0)
{
p.ro += (part_q[i][j] * part_q[i][j]);
p.ro_near += (part_q[i][j] * part_q[i][j] * part_q[i][j]);
if (part_near[i][j].gameObject.layer == 9)
{
continue;
}
Fluid_particle q = part_near[i][j].GetComponent <Fluid_particle>();
q.ro += (part_q[i][j] * part_q[i][j]);
q.ro_near += (part_q[i][j] * part_q[i][j] * part_q[i][j]);
}
}
}
for (int i = 0; i < particles_count; i++)
{
if (particles[i] == null)
{
continue;
}
Fluid_particle p = particles[i].GetComponent <Fluid_particle>();
p.press = k * (p.ro - rest_ro);
p.press_near = k_near * p.ro_near;
}
for (int i = 0; i < particles_count; i++)
{
Vector2 s = Vector2.zero;
if (particles[i] == null)
{
continue;
}
Fluid_particle p = particles[i].GetComponent <Fluid_particle>();
for (int j = 0; j < part_near[i].Length; j++)
{
if (part_near[i][j] == null)
{
continue;
}
Fluid_particle q = part_near[i][j].GetComponent <Fluid_particle>();
if (part_near[i][j].gameObject.layer == 4)
{
if (part_d[i][j] > 0)
{
float q1 = part_q[i][j];
float q2 = q1 * q1;
Vector2 tmp = (p.transform.position - q.transform.position) * ((p.press + q.press) * q1 + (p.press_near + q.press_near) * q2) / part_d[i][j];
q.a += tmp;
s += tmp;
}
}
else if (part_near[i][j].gameObject.layer == 9)
{
float q1 = part_q[i][j];
float q2 = q1 * q1;
Vector2 tmp = (part_near[i][j].transform.position - p.transform.position) * ((p.press) * q1 + (1000 * p.press_near) * q2) / part_d[i][j];
s += tmp;
//Debug.Log("drgd");
}
}
p.a -= s;
}
for (int i = 0; i < particles_count; i++)
{
if (particles[i] == null)
{
continue;
}
Fluid_particle p = particles[i].GetComponent <Fluid_particle>();
Vector2 f = p.a;
//p.a.x = Mathf.Clamp(f.x, -200, 200);
p.a.y = Mathf.Clamp(f.y, -300, 800);
}
}
