public List<Vertex> generateVertices(MeshBuilder builder, Vector3 offset, UVArea area, float v, float yCos, float ySin)
{
List<Vertex> vertices = builder.generateRadialVerticesFlatUVs(offset, faces, radius, height, startAngle, endAngle, v, area, yCos, ySin);
startVector = vertices[0].vertex;
endVector = vertices[vertices.Count - 1].vertex;
return vertices;
}
private void enableRendering()
{
if (HighLogic.LoadedSceneIsEditor || HighLogic.LoadedSceneIsFlight)
{
Transform modelBase = part.transform.FindRecursive("model");
DragCube cube;
GameObject go;
int len = part.DragCubes.Cubes.Count;
Vector3 size;
Vector3 center;
Mesh mesh;
MeshFilter filter;
MeshRenderer render;
for (int i = 0; i < len; i++)
{
cube = part.DragCubes.Cubes[i];
go = new GameObject("DragCubeRenderer");
MeshBuilder mb = new MeshBuilder();
size = cube.Size;
center = cube.Center;
mb.generateCuboid(size, center, Vector2.zero, Vector2.one);
mesh = mb.buildMesh();
filter = go.AddComponent<MeshFilter>();
filter.mesh = mesh;
render = go.AddComponent<MeshRenderer>();
render.enabled = true;
go.transform.NestToParent(modelBase);
}
}
}
public Mesh generateMesh()
{
MeshBuilder builder = new MeshBuilder();
Arc bottomOuterArc = new Arc(bottomRadius, 0, 0, 360, faces);
Arc topOuterArc = new Arc(topRadius, height, 0, 360, faces);
List<Vertex> verts1 = bottomOuterArc.generateVertices(builder, offset, outsideUV, outsideUV.v1, 1, 0);
List<Vertex> verts2 = topOuterArc.generateVertices(builder, offset, outsideUV, outsideUV.v2, 1, 0);
builder.generateQuads(verts1, verts2, false);
if (bottomInnerRadius != 0 || topInnerRadius != 0)
{
Arc bottomInnerArc = new Arc(bottomInnerRadius, 0, 0, 360, faces);
Arc topInnerArc = new Arc(topInnerRadius, height, 0, 360, faces);
float heightDiff = topInnerArc.height - bottomInnerArc.height;
float radiusDiff = bottomInnerArc.radius - topInnerArc.radius;
float sideRadians = Mathf.Atan2(heightDiff, radiusDiff) - 90 * Mathf.Deg2Rad;
float yCos = Mathf.Cos(sideRadians);
float ySin = Mathf.Sin(sideRadians);
verts1 = bottomInnerArc.generateVertices(builder, offset, insideUV, insideUV.v1, -yCos, ySin);
verts2 = topInnerArc.generateVertices(builder, offset, insideUV, insideUV.v2, -yCos, ySin);
builder.generateQuads(verts1, verts2, true);
}
builder.generateCylinderCap(offset, faces, bottomRadius, bottomInnerRadius, 0, 0, 360, bottomUV, true);
builder.generateCylinderCap(offset, faces, topRadius, topInnerRadius, height, 0, 360, topUV, false);
Mesh mesh = builder.buildMesh();
mesh.name = "ProceduralCylinderMesh";
return mesh;
}
private void generateSidewalls(MeshBuilder builder, UVArea caps)
{
int len = outerArcs.Count;
float[] distances = new float[len];
float[] us = new float[len];
float totalLength = 0;
float length;
Vector3 a, b;
for (int i = 0; i < len - 1; i++)
{
a = outerArcs[i].startVector;
b = outerArcs[i + 1].startVector;
length = Vector3.Distance(a, b);
totalLength += length;
distances[i + 1] = length;
}
length = 0;
float percent;
float uDelta = caps.u2 - caps.u1;
for (int i = 0; i < len; i++)
{
length += distances[i];
percent = length / totalLength;
us[i] = caps.u1 + percent * uDelta;
}
Vector3 leftNorm = new Vector3();
leftNorm.x = outerArcs[0].startVector.z;
leftNorm.z = -outerArcs[0].startVector.x;
leftNorm.Normalize();
Vector3 rightNorm = new Vector3();
rightNorm.x = outerArcs[0].endVector.z;
rightNorm.z = -outerArcs[0].endVector.x;
rightNorm.Normalize();
rightNorm = -rightNorm;//as faces get inverted for this side, so norms get inverted as well
//left
List<Vertex> outerStartVerts = new List<Vertex>();
List<Vertex> innerStartVerts = new List<Vertex>();
//right
List<Vertex> outerEndVerts = new List<Vertex>();
List<Vertex> innerEndVerts = new List<Vertex>();
len = outerArcs.Count;
Vector3 outer, inner;
Vector2 uv;
for (int i = 0; i < len; i++)
{
outer = outerArcs[i].startVector;
uv = new Vector2(us[i], caps.v1);
outerStartVerts.Add(builder.addVertex(outer, leftNorm, uv));
inner = innerArcs[i].startVector;
uv = new Vector2(us[i], caps.v2);
innerStartVerts.Add(builder.addVertex(inner, leftNorm, uv));
outer = outerArcs[i].endVector;
uv = new Vector2(us[i], caps.v1);
outerEndVerts.Add(builder.addVertex(outer, rightNorm, uv));
inner = innerArcs[i].endVector;
uv = new Vector2(us[i], caps.v2);
innerEndVerts.Add(builder.addVertex(inner, rightNorm, uv));
}
builder.generateQuads(outerStartVerts, innerStartVerts, false);
builder.generateQuads(outerEndVerts, innerEndVerts, true);
}
private void generatePanelSegment(MeshBuilder builder, Vector3 pos, Arc arcA, Arc arcB, UVArea area, bool invertFaces, bool invertNormalY, bool invertNormalXZ)
{
float heightDiff = arcB.height - arcA.height;
float offset = arcA.radius - arcB.radius;
float sideRadians = Mathf.Atan2(heightDiff, offset) - 90 * Mathf.Deg2Rad;
float yCos = Mathf.Cos(sideRadians);
float ySin = Mathf.Sin(sideRadians);
if (invertNormalY) { ySin *= -1; }
if (invertNormalXZ) { yCos *= -1; }
List<Vertex> verts1 = new List<Vertex>();
List<Vertex> verts2 = new List<Vertex>();
verts1.AddRange(arcA.generateVertices(builder, pos, area, area.v1, yCos, ySin));
verts2.AddRange(arcB.generateVertices(builder, pos, area, area.v2, yCos, ySin));
builder.generateQuads(verts1, verts2, invertFaces);
}
public Mesh generatePanels(Vector3 pos, UVArea outer, UVArea inner, UVArea caps)
{
int len = outerArcs.Count;
MeshBuilder builder = new MeshBuilder();
for (int i = 0; i < len - 1; i++)
{
generatePanelSegment(builder, pos, outerArcs[i], outerArcs[i + 1], outer, false, true, false);//outside panels
generatePanelSegment(builder, pos, innerArcs[i], innerArcs[i + 1], inner, true, false, true);//inside panels
}
generatePanelSegment(builder, pos, outerArcs[0], innerArcs[0], caps, true, false, false);//bottom cap
generatePanelSegment(builder, pos, outerArcs[outerArcs.Count - 1], innerArcs[innerArcs.Count - 1], caps, false, false, false);//top cap
if (shouldGenerateSidewalls)
{
generateSidewalls(builder, caps);
}
return builder.buildMesh();
}
public GameObject[] generateColliders(Vector3 center, int facesPerCollider)
{
float totalAngle = endAngle - startAngle;
float anglePerFace = 360f / (float)faces;
int localFaces = (int)Math.Round(totalAngle / anglePerFace);
localFaces /= facesPerCollider;
GameObject[] colliders = new GameObject[localFaces];
float localStart, localEnd, startY, height, topRadius, bottomRadius, thickness;
Mesh colliderMesh;
MeshFilter mf;
//MeshRenderer mr;
MeshCollider mc;
thickness = outerArcs[0].radius - innerArcs[0].radius;
MeshBuilder builder = new MeshBuilder();
for (int i = 0; i < localFaces; i++)
{
localStart = startAngle + (float)i * anglePerFace;
localEnd = localStart + (anglePerFace * facesPerCollider);
for (int k = 0; k < innerArcs.Count - 1; k++)
{
startY = innerArcs[k].height;
height = innerArcs[k+1].height - startY;
bottomRadius = outerArcs[k].radius;
topRadius = outerArcs[k+1].radius;
builder.generatePanelCollider(center, localStart, localEnd, startY, height, bottomRadius, topRadius, thickness);
colliderMesh = builder.buildMesh();
builder.clear();
colliders[i] = new GameObject("PanelCollider"+i+"-"+k);
mf = colliders[i].AddComponent<MeshFilter>();
//mr = colliders[i].AddComponent<MeshRenderer>();
mc = colliders[i].AddComponent<MeshCollider>();
mf.mesh = colliderMesh;
//mr.enabled = true;
mc.sharedMesh = colliderMesh;
mc.enabled = mc.convex = true;
}
}
return colliders;
}
public GameObject[] generateColliders()
{
GameObject[] colliders = new GameObject[faces];
float anglePerFace = 360f / (float)faces;
float start = 0;
float end = start + anglePerFace;
float thickness = topRadius - topInnerRadius;
Mesh mesh;
MeshFilter mf;
MeshCollider mc;
MeshBuilder builder = new MeshBuilder();
GameObject collider;
for (int i = 0; i < faces; i++)
{
collider = new GameObject("ProceduralCylinderCollider-" + i);
colliders[i] = collider;
start = (float)i * anglePerFace;
end = start + anglePerFace;
builder.generatePanelCollider(offset, start, end, 0, height, bottomRadius, topRadius, thickness);
mesh = builder.buildMesh();
mf = collider.AddComponent<MeshFilter>();
mf.mesh = mesh;
mc = collider.AddComponent<MeshCollider>();
mc.sharedMesh = mesh;
mc.convex = true;
builder.clear();
}
return colliders;
}
private Mesh generatePanelCollider(Vector3 center, float startAngle, float endAngle, float height, float bottomRadius, float topRadius, float thickness)
{
MeshBuilder builder = new MeshBuilder();
float bottomInnerRadius = bottomRadius - thickness;
float topInnerRadius = topRadius - thickness;
float startRads = Mathf.Deg2Rad * startAngle;
float endRads = Mathf.Deg2Rad * endAngle;
float startXSin = -Mathf.Sin(startRads);
float startZCos = Mathf.Cos(startRads);
float endXSin = -Mathf.Sin(endRads);
float endZCos = Mathf.Cos(endRads);
Vector3 frontBottomLeft = new Vector3(center.x + bottomRadius * startXSin, center.y, center.z + bottomRadius * startZCos);
Vector3 frontBottomRight = new Vector3(center.x + bottomRadius * endXSin, center.y, center.z + bottomRadius * endZCos);
Vector3 frontTopLeft = new Vector3(center.x + topRadius * startXSin, center.y + height, center.z + topRadius * startZCos);
Vector3 frontTopRight = new Vector3(center.x + topRadius * endXSin, center.y + height, center.z + topRadius * endZCos);
Vector3 rearBottomLeft = new Vector3(center.x + bottomInnerRadius * startXSin, center.y, center.z + bottomInnerRadius * startZCos);
Vector3 rearBottomRight = new Vector3(center.x + bottomInnerRadius * endXSin, center.y, center.z + bottomInnerRadius * endZCos);
Vector3 rearTopLeft = new Vector3(center.x + topInnerRadius * startXSin, center.y + height, center.z + topInnerRadius * startZCos);
Vector3 rearTopRight = new Vector3(center.x + topInnerRadius * endXSin, center.y + height, center.z + topInnerRadius * endZCos);
Vector3 normFront = Vector3.forward;
Vector3 normRear = Vector3.back;
Vector3 normLeft = Vector3.left;
Vector3 normRight = Vector3.right;
Vector3 normUp = Vector3.up;
Vector3 normDown = Vector3.down;
Vector2 uv1 = new Vector2(0, 0);
Vector2 uv2 = new Vector2(1, 0);
Vector2 uv3 = new Vector2(0, 1);
Vector2 uv4 = new Vector2(1, 1);
List<Vertex> v1 = new List<Vertex>();
List<Vertex> v2 = new List<Vertex>();
//generate front face
v1.Add(builder.addVertex(frontBottomLeft, normFront, uv1));
v1.Add(builder.addVertex(frontBottomRight, normFront, uv2));
v2.Add(builder.addVertex(frontTopLeft, normFront, uv3));
v2.Add(builder.addVertex(frontTopRight, normFront, uv4));
builder.generateQuads(v1, v2, false);
v1.Clear();
v2.Clear();
//generate rear face
v1.Add(builder.addVertex(rearBottomLeft, normRear, uv2));
v1.Add(builder.addVertex(rearBottomRight, normRear, uv1));
v2.Add(builder.addVertex(rearTopLeft, normRear, uv4));
v2.Add(builder.addVertex(rearTopRight, normRear, uv3));
builder.generateQuads(v1, v2, true);
v1.Clear();
v2.Clear();
//generate left face
v1.Add(builder.addVertex(frontBottomLeft, normLeft, uv2));
v1.Add(builder.addVertex(rearBottomLeft, normLeft, uv1));
v2.Add(builder.addVertex(frontTopLeft, normLeft, uv4));
v2.Add(builder.addVertex(rearTopLeft, normLeft, uv3));
builder.generateQuads(v1, v2, true);
v1.Clear();
v2.Clear();
//generate right face
v1.Add(builder.addVertex(frontBottomRight, normRight, uv1));
v1.Add(builder.addVertex(rearBottomRight, normRight, uv2));
v2.Add(builder.addVertex(frontTopRight, normRight, uv3));
v2.Add(builder.addVertex(rearTopRight, normRight, uv4));
builder.generateQuads(v1, v2, false);
v1.Clear();
v2.Clear();
//generate top face
v1.Add(builder.addVertex(frontTopRight, normUp, uv2));
v1.Add(builder.addVertex(frontTopLeft, normUp, uv1));
v2.Add(builder.addVertex(rearTopRight, normUp, uv4));
v2.Add(builder.addVertex(rearTopLeft, normUp, uv3));
builder.generateQuads(v1, v2, true);
v1.Clear();
v2.Clear();
//generate bottom face
v1.Add(builder.addVertex(frontBottomRight, normUp, uv1));
v1.Add(builder.addVertex(frontBottomLeft, normUp, uv2));
v2.Add(builder.addVertex(rearBottomRight, normUp, uv3));
v2.Add(builder.addVertex(rearBottomLeft, normUp, uv4));
builder.generateQuads(v1, v2, false);
v1.Clear();
v2.Clear();
return builder.buildMesh();
}
//TODO
private Mesh generatePanelCollider(Vector3 pos, float start, float end, float bottomRad, float topRad, float y1, float y2)
{
MeshBuilder builder = new MeshBuilder();
List<Vertex> verts1 = new List<Vertex>();
List<Vertex> verts2 = new List<Vertex>();
Vector3 outerBottomStart;
throw new NotImplementedException();
builder.generateQuads(verts1, verts2, false);
return builder.buildMesh();
}
