Vector2 segpos(int segIdx, float pos, out float direc, out bool beyond)
{
SegData d = m_pathdata[segIdx];
beyond = (pos > d.len);
direc = d.dir;
return(path[segIdx] + d.dirvec * pos);
/*
* Vector2 res;
* float t = pos / d.len;
* if (segIdx >= 1 && segIdx + 2 < path.Count)
* {
* // middle
* res.x = interpolate_lr_xx(path[segIdx-1].x,path[segIdx].x,path[segIdx+1].x,path[segIdx+2].x,t) ;
* res.y = interpolate_lr_xx(path[segIdx-1].y,path[segIdx].y,path[segIdx+1].y,path[segIdx+2].y,t) ;
* }
* else if (segIdx >= 1)
* {
* // right
* res.x = interpolate_l_xx(path[segIdx-1].x,path[segIdx].x,path[segIdx+1].x,t) ;
* res.y = interpolate_l_xx(path[segIdx-1].y,path[segIdx].y,path[segIdx+1].y,t) ;
* }
* else
* {
* // left
* res.x = interpolate_r_xx(path[segIdx].x,path[segIdx+1].x,path[segIdx+2].x,t) ;
* res.y = interpolate_r_xx(path[segIdx].y,path[segIdx+1].y,path[segIdx+2].y,t) ;
* }
* return res;
*/
}
protected override void update_positions()
{
base.update_positions();
m_pos += Time.deltaTime * def_speed;
//Debug.Log("update_pos pos=" + m_pos.ToString()+" memlen = "+m_members.Count.ToString()+" pathlen="+m_pathdata.Count.ToString());
for (int i = 0; i < numberEnemies; i++)
{
float pos = m_pos - (def_speed * def_timespacing) * i;
if (pos < 0.0)
{
continue;
}
CWaveflight.AttachPoint at = m_members[i];
Vector2 xy;
while (true)
{
bool beyond;
float direc;
if (at.phase >= m_pathdata.Count)
{
at.pointState = AttachPoint.PointState.left;
break;
}
SegData d = m_pathdata[at.phase];
xy = segpos(at.phase, pos - d.pos0, out direc, out beyond);
if (beyond)
{
at.phase++; continue;
}
//if(i==1)
// Debug.Log(" xy = " + xy.ToString());
at.loc = xy;
at.rot = direc;
at.pointState = AttachPoint.PointState.inField;
break;
}
}
}
private void process_pathdata()
{
float p;
p = 0.0f;
if (System.Object.ReferenceEquals(def_path, null))
{
def_path = new System.Collections.Generic.List <Vector2>();
def_path.Add(new Vector2(-1.0f, 0.0f));
def_path.Add(new Vector2(1.0f, 0.0f));
}
if (def_path.Count <= 2 || !def_round)
{
// just copy
path = def_path;
}
else
{
// interpolate
int subs = 10;
int i;
float sf = 1.0f / (float)subs;
Vector2 P;
path = new System.Collections.Generic.List <Vector2>();
path.Add(def_path[0]);
for (int j = 1; j < 10; j++)
{
P.x = interpolate_r_xx(def_path[0].x, def_path[1].x, def_path[2].x, sf * j);
P.y = interpolate_r_xx(def_path[0].y, def_path[1].y, def_path[2].y, sf * j);
path.Add(P);
}
for (i = 1; i + 2 < def_path.Count; i++)
{
path.Add(def_path[i]);
for (int j = 1; j < 10; j++)
{
P.x = interpolate_lr_xx(def_path[i - 1].x, def_path[i].x, def_path[i + 1].x, def_path[i + 2].x, sf * j);
P.y = interpolate_lr_xx(def_path[i - 1].y, def_path[i].y, def_path[i + 1].y, def_path[i + 2].y, sf * j);
path.Add(P);
}
}
i = def_path.Count - 2;
path.Add(def_path[i]);
for (int j = 1; j < 10; j++)
{
P.x = interpolate_l_xx(def_path[i - 1].x, def_path[i].x, def_path[i + 1].x, sf * j);
P.y = interpolate_l_xx(def_path[i - 1].y, def_path[i].y, def_path[i + 1].y, sf * j);
path.Add(P);
}
i = def_path.Count - 1;
path.Add(def_path[i]);
}
for (int i = 0; i + 1 < path.Count; i++)
{
SegData d = new SegData();
Vector2 a = path[i];
Vector2 b = path[i + 1] - a;
d.pos0 = p;
d.len = b.magnitude;
b.Normalize();
d.dirvec = b;
d.dir = (float)Math.Atan2(b.y, b.x);
p += d.len;
m_pathdata.Add(d);
}
}