public void UpdateOffsets()
{
for (int s = 0; s < spans.Count; s++)
{
MegaWireSpan span = spans[s];
for (int c = 0; c < span.connections.Count; c++)
{
MegaWireConnection con = span.connections[c];
con.inOffset = connections[c].inOffset;
con.outOffset = connections[c].outOffset;
for (int i = 0; i < con.constraints.Count; i++)
{
MegaWireConstraint cn = con.constraints[i];
if (cn.GetType() == typeof(MegaWirePointConstraint))
{
MegaWirePointConstraint wpc = (MegaWirePointConstraint)cn;
if (wpc.p1 == 0)
{
wpc.offset = con.inOffset;
}
else
{
wpc.offset = con.outOffset;
}
}
}
}
}
}
public Vector3 GetPos(float alpha, int strand, bool snap)
{
alpha = Mathf.Clamp(alpha, 0.0f, 0.9999f);
float fa = alpha * (float)spans.Count;
int sindex = (int)fa; //(alpha * (float)spans.Count);
float aa = fa - (float)sindex;
MegaWireSpan span = spans[sindex];
MegaWireConnection con = span.connections[strand];
// may need to knock 2 of as have sentry masses
float ma1 = aa * (float)(con.masses.Count - 1);
int i = (int)ma1 + 1; //(aa * (float)(con.masses.Count - 2)) + 1;
float u = ma1 - (float)(i - 1);
if (snap)
{
if (u > 0.5f)
{
u = 0.999f;
}
else
{
u = 0.0f;
}
}
Vector3 a = con.masspos[i - 1];
Vector3 b = con.masspos[i];
Vector3 c = con.masspos[i + 1];
Vector3 d = con.masspos[i + 2];
return(0.5f * ((-a + 3.0f * b - 3.0f * c + d) * (u * u * u) + (2.0f * a - 5.0f * b + 4.0f * c - d) * (u * u) + (-a + c) * u + 2.0f * b));
}
public void OnSceneGUI()
{
MegaWire mod = (MegaWire)target;
if ( mod.displayGizmo )
{
Handles.color = mod.gizmoColor;
for ( int i = 0; i < mod.spans.Count; i++ )
{
MegaWireSpan span = mod.spans[i];
for ( int c = 0; c < span.connections.Count; c++ )
{
MegaWireConnection con = span.connections[c];
Vector3 p = con.masspos[1];
Handles.DotCap(0, p, Quaternion.identity, con.radius);
for ( int m = 2; m < con.masspos.Length - 1; m++ )
{
p = con.masspos[m];
Handles.DotCap(0, con.masspos[m], Quaternion.identity, con.radius);
}
// Draw springs
int scount = con.springs.Count;
if ( mod.stiffnessSprings )
scount = con.masses.Count - 1;
for ( int s = 0; s < scount; s++ )
{
Vector3 p1 = con.masses[con.springs[s].p1].pos;
Vector3 p2 = con.masses[con.springs[s].p2].pos;
float w = ((con.springs[s].len - con.springs[s].restlen) / con.springs[s].restlen) * con.springs[s].ks; //con.springs[s].restlen;
if ( w >= 0.0f )
Handles.color = Color.Lerp(Color.green, Color.red, w);
else
Handles.color = Color.Lerp(Color.green, Color.blue, -w);
Handles.DrawLine(p1, p2);
}
}
}
if ( mod.disableOnDistance )
{
Handles.color = mod.gizmoColor;
for ( int s = 0; s < mod.spans.Count; s++ )
{
Vector3 mp = (mod.spans[s].connections[0].masses[0].pos + mod.spans[s].connections[0].masses[mod.spans[s].connections[0].masses.Count - 1].pos) * 0.5f;
Handles.SphereCap(0, mp, Quaternion.identity, mod.disableDist * 2.0f);
}
}
}
}
public void ChangeStretch(float stretch)
{
for (int i = 0; i < spans.Count; i++)
{
MegaWireSpan span = spans[i];
for (int c = 0; c < span.connections.Count; c++)
{
MegaWireConnection con = span.connections[c];
for (int s = 0; s < con.springs.Count; s++)
{
con.springs[s].restlen = con.springs[s].initlen * stretch;
}
}
}
}
void LateUpdate()
{
if (wire == null)
{
if (parent != null)
{
wire = parent.GetComponentInChildren <MegaWire>();
}
}
if (wire)
{
float alpha1 = Mathf.Clamp(alpha, 0.0f, 0.9999f);
float fa = alpha1 * (float)wire.spans.Count;
int sindex = (int)fa;
float aa = fa - (float)sindex;
MegaWireSpan span = wire.spans[sindex];
MegaWireConnection con = span.connections[connection];
Vector3 p = con.Interp(aa);
transform.position = p + offset;
if (align)
{
Vector3 p1 = con.Interp(aa + 0.001f);
Vector3 relativePos = p1 - p;
Quaternion rotation = Quaternion.LookRotation(relativePos, Vector3.up);
locrot = rotation;
wtm.SetTRS(p, rotation, Vector3.one);
Quaternion r1 = Quaternion.Euler(rotate);
transform.rotation = locrot * r1;
}
}
}
public void Init()
{
for (int s = 0; s < spans.Count; s++)
{
MegaWireSpan span = spans[s];
span.connections.Clear();
for (int c = 0; c < connections.Count; c++)
{
MegaWireConnection con = new MegaWireConnection();
con.start = span.start;
con.end = span.end;
con.inOffset = connections[c].inOffset;
con.outOffset = connections[c].outOffset;
con.radius = connections[c].radius;
span.connections.Add(con);
con.Init(this);
}
}
}
// each wire length should have a very simple script attached that can do onvisible etc
// to turn off the updates, other than that all updates should be done from MegaWire
static public MegaWire Create(MegaWire wire, List <GameObject> objs, Material mat, string name, MegaWire copyfrom, float wiresize, float str)
{
//MegaWire wire = null;
if (objs != null && objs.Count > 1)
{
GameObject newwire = null;
if (wire == null)
{
newwire = new GameObject();
newwire.name = name;
wire = newwire.AddComponent <MegaWire>();
wire.material = mat;
wire.stretch = str;
}
else
{
newwire = wire.gameObject;
}
wire.poles.Clear();
wire.spans.Clear();
wire.connections.Clear();
wire.poles.Add(objs[0].transform);
bool hide = true;
if (copyfrom)
{
hide = copyfrom.hidespans;
}
// Make the connections, each connection is a new gameobject child of the wire object
for (int i = 0; i < objs.Count - 1; i++)
{
GameObject pole = new GameObject();
if (hide)
{
pole.hideFlags = HideFlags.HideInHierarchy | HideFlags.HideInInspector | HideFlags.NotEditable;
}
pole.name = name + " Span Mesh " + i;
pole.transform.parent = newwire.transform;
MegaWireSpan span = pole.AddComponent <MegaWireSpan>();
span.start = objs[i].transform;
span.end = objs[i + 1].transform;
MeshFilter mf = pole.GetComponent <MeshFilter>();
mf.sharedMesh = new Mesh();
MeshRenderer mr = pole.GetComponent <MeshRenderer>();
Material[] mats = new Material[1];
mats[0] = wire.material;
mr.sharedMaterials = mats;
span.mesh = mf.sharedMesh;
span.mesh.name = name + " Wire Mesh " + i;
span.Init(wire);
wire.spans.Add(span);
wire.poles.Add(objs[i + 1].transform);
}
MegaWireConnectionHelper helper = objs[0].GetComponent <MegaWireConnectionHelper>();
if (copyfrom)
{
wire.Copy(copyfrom, helper);
}
else
{
// Check if any pole has a helper on it, if so use that
if (helper)
{
wire.Copy(wire, helper);
}
else
{
// Add the first connection
MegaWireConnectionDef con = new MegaWireConnectionDef();
wire.connections.Add(con);
}
}
if (wiresize != 1.0f)
{
for (int i = 0; i < wire.connections.Count; i++)
{
wire.connections[i].radius *= wiresize;
}
}
wire.Init();
}
return(wire);
}
public override void BuildMesh(MegaWire rope, MegaWireSpan span)
{
int wires = span.connections.Count;
float lengthuvtile = uvtiley * span.WireLength;
Twist = TwistPerUnit * span.WireLength;
segments = (int)(span.WireLength * SegsPerUnit);
if (segments < 1)
{
segments = 1;
}
int vcount = ((segments + 1) * (sides + 1)) * strands * wires;
int tcount = ((sides * 2) * segments) * strands * wires;
if (span.verts == null || span.verts.Length != vcount)
{
span.verts = new Vector3[vcount];
}
bool buildtris = false;
if ((span.uvs == null || span.uvs.Length != vcount) && genuv)
{
span.uvs = new Vector2[vcount];
rope.builduvs = true;
}
if (span.tris == null || span.tris.Length != tcount * 3)
{
span.tris = new int[tcount * 3];
buildtris = true;
}
if (span.norms == null || span.norms.Length != vcount)
{
span.norms = new Vector3[vcount];
}
int vi = 0;
int ti = 0;
BuildCrossSection(1.0f);
for (int c = 0; c < span.connections.Count; c++)
{
MegaWireConnection con = span.connections[c];
// TODO: inspector should update radius from def, then user can control per span
float off = (rope.connections[c].radius * 0.5f) + offset;
float sradius = 0.0f;
if (strands == 1)
{
off = offset;
sradius = rope.connections[c].radius;
}
else
{
sradius = (rope.connections[c].radius * 0.5f) + strandRadius;
}
Vector2 uv = Vector2.zero;
Vector3 soff = Vector3.zero;
int vo;
for (int s = 0; s < strands; s++)
{
if (strands == 1)
{
vo = vi;
if (linInterp)
{
for (int i = 0; i <= segments; i++)
{
float alpha = ((float)i / (float)segments);
float uvt = alpha * uvtwist;
wtm = con.GetDeformMatLin(alpha);
for (int v = 0; v <= cross.Length; v++)
{
Vector3 p = cross[v % cross.Length];
span.verts[vi] = wtm.MultiplyPoint3x4(p * sradius);
span.norms[vi] = wtm.MultiplyVector(p);
if (genuv && rope.builduvs)
{
uv.y = alpha * lengthuvtile;
uv.x = (((float)v / (float)cross.Length) * uvtilex) + uvt;
span.uvs[vi] = uv;
}
vi++;
}
}
}
else
{
for (int i = 0; i <= segments; i++)
{
float alpha = ((float)i / (float)segments);
float uvt = alpha * uvtwist;
wtm = con.GetDeformMat(alpha);
for (int v = 0; v <= cross.Length; v++)
{
Vector3 p = cross[v % cross.Length];
span.verts[vi] = wtm.MultiplyPoint3x4(p * sradius);
span.norms[vi] = wtm.MultiplyVector(p);
if (genuv && rope.builduvs)
{
uv.y = alpha * lengthuvtile;
uv.x = (((float)v / (float)cross.Length) * uvtilex) + uvt;
span.uvs[vi] = uv;
}
vi++;
}
}
}
}
else
{
float ang = ((float)s / (float)strands) * Mathf.PI * 2.0f;
soff.x = Mathf.Sin(ang) * off;
soff.z = Mathf.Cos(ang) * off;
vo = vi;
if (linInterp)
{
for (int i = 0; i <= segments; i++)
{
float alpha = ((float)i / (float)segments);
float uvt = alpha * uvtwist;
float tst = (alpha * Twist * Mathf.PI * 2.0f);
soff.x = Mathf.Sin(ang + tst) * off;
soff.z = Mathf.Cos(ang + tst) * off;
wtm = con.GetDeformMatLin(alpha);
for (int v = 0; v <= cross.Length; v++)
{
Vector3 p = cross[v % cross.Length];
span.verts[vi] = wtm.MultiplyPoint3x4((p * sradius) + soff);
span.norms[vi] = wtm.MultiplyVector(p);
if (genuv && rope.builduvs)
{
uv.y = alpha * lengthuvtile;
uv.x = (((float)v / (float)cross.Length) * uvtilex) + uvt;
span.uvs[vi] = uv;
}
vi++;
}
}
}
else
{
for (int i = 0; i <= segments; i++)
{
float alpha = ((float)i / (float)segments);
float uvt = alpha * uvtwist;
float tst = (alpha * Twist * Mathf.PI * 2.0f);
soff.x = Mathf.Sin(ang + tst) * off;
soff.z = Mathf.Cos(ang + tst) * off;
wtm = con.GetDeformMat(alpha);
for (int v = 0; v <= cross.Length; v++)
{
Vector3 p = cross[v % cross.Length];
span.verts[vi] = wtm.MultiplyPoint3x4((p * sradius) + soff);
span.norms[vi] = wtm.MultiplyVector(p);
if (genuv && rope.builduvs)
{
uv.y = alpha * lengthuvtile;
uv.x = (((float)v / (float)cross.Length) * uvtilex) + uvt;
span.uvs[vi] = uv;
}
vi++;
}
}
}
}
if (buildtris)
{
int sc = sides + 1;
for (int i = 0; i < segments; i++)
{
for (int v = 0; v < cross.Length; v++)
{
int v1 = ((i + 1) * sc) + v + vo;
int v2 = ((i + 1) * sc) + ((v + 1) % sc) + vo;
int v3 = (i * sc) + v + vo;
int v4 = (i * sc) + ((v + 1) % sc) + vo;
span.tris[ti++] = v1; //((i + 1) * sc) + v + vo;
span.tris[ti++] = v2; //((i + 1) * sc) + ((v + 1) % sc) + vo;
span.tris[ti++] = v3; //(i * sc) + v + vo;
span.tris[ti++] = v2; //((i + 1) * sc) + ((v + 1) % sc) + vo;
span.tris[ti++] = v4; //(i * sc) + ((v + 1) % sc) + vo;
span.tris[ti++] = v3; //(i * sc) + v + vo;
}
}
}
}
}
if ((!genuv && rope.builduvs) || buildtris)
{
#if UNITY_3_5
span.mesh.Clear();
#else
span.mesh.Clear(false);
#endif
}
span.mesh.vertices = span.verts;
if (genuv && rope.builduvs)
{
span.mesh.uv = span.uvs;
}
if ((!genuv && rope.builduvs) || buildtris)
{
span.mesh.triangles = span.tris;
}
if (calcBounds)
{
span.mesh.RecalculateBounds();
}
span.mesh.normals = span.norms;
if (calcTangents && genuv)
{
BuildTangents(span.mesh, span.verts, span.uvs, span.mesh.normals, span.tris);
}
span.vcount = vcount;
}
public virtual void BuildMesh(MegaWire rope, MegaWireSpan span)
{
}