private void HandleCameraDraw(Camera camera)
{
if (SgtHelper.CanDraw(gameObject, camera) == false)
{
return;
}
if (orbit != null)
{
var floatingCamera = default(SgtFloatingCamera);
if (SgtFloatingCamera.TryGetInstance(ref floatingCamera) == true)
{
if (visualMesh == null)
{
visualMesh = SgtHelper.CreateTempMesh("Orbit Visual");
}
meshPositions.Clear();
meshCoords.Clear();
meshColors.Clear();
meshIndices.Clear();
var position = floatingCamera.CalculatePosition(orbit.ParentPoint.Position);
var rotation = orbit.ParentPoint.transform.rotation * Quaternion.Euler(orbit.Tilt);
var r1 = orbit.Radius;
var r2 = orbit.Radius * (1.0f - orbit.Oblateness);
var i1 = r1 - thickness * 0.5;
var i2 = r2 - thickness * 0.5;
var o1 = i1 + thickness;
var o2 = i2 + thickness;
var step = 360.0 / points;
var stepI = 1.0f / (points - 1);
for (var i = 0; i < points; i++)
{
var angle = (orbit.Angle - i * step) * Mathf.Deg2Rad;
var sin = System.Math.Sin(angle);
var cos = System.Math.Cos(angle);
// Inner
{
var point = position;
var offsetX = orbit.Offset.x + sin * i1;
var offsetY = orbit.Offset.y + 0.0;
var offsetZ = orbit.Offset.z + cos * i2;
SgtFloatingOrbit.Rotate(rotation, ref offsetX, ref offsetY, ref offsetZ);
point.x += (float)offsetX;
point.y += (float)offsetY;
point.z += (float)offsetZ;
point = transform.InverseTransformPoint(point);
meshPositions.Add(point);
}
// Outer
{
var point = position;
var offsetX = orbit.Offset.x + sin * o1;
var offsetY = orbit.Offset.y + 0.0;
var offsetZ = orbit.Offset.z + cos * o2;
SgtFloatingOrbit.Rotate(rotation, ref offsetX, ref offsetY, ref offsetZ);
point.x += (float)offsetX;
point.y += (float)offsetY;
point.z += (float)offsetZ;
point = transform.InverseTransformPoint(point);
meshPositions.Add(point);
}
var u = stepI * i;
var color = colors.Evaluate(u);
meshCoords.Add(new Vector2(u, 0.0f));
meshCoords.Add(new Vector2(u, 1.0f));
meshColors.Add(color);
meshColors.Add(color);
}
for (var i = 0; i < points; i++)
{
var indexA = i * 2 + 0;
var indexB = i * 2 + 1;
var indexC = i * 2 + 2; indexC %= points * 2;
var indexD = i * 2 + 3; indexD %= points * 2;
meshIndices.Add(indexA);
meshIndices.Add(indexB);
meshIndices.Add(indexC);
meshIndices.Add(indexD);
meshIndices.Add(indexC);
meshIndices.Add(indexB);
}
visualMesh.SetVertices(meshPositions);
visualMesh.SetTriangles(meshIndices, 0);
visualMesh.SetUVs(0, meshCoords);
visualMesh.SetColors(meshColors);
visualMesh.RecalculateBounds();
}
if (visualMesh != null)
{
Graphics.DrawMesh(visualMesh, transform.localToWorldMatrix, material, gameObject.layer, camera);
}
}
}
public void Draw(SgtFloatingOrbit orbit)
{
if (cachedMeshFilterSet == false)
{
cachedMeshFilter = GetComponent <MeshFilter>();
cachedMeshFilterSet = true;
}
if (visualMesh == null)
{
visualMesh = cachedMeshFilter.sharedMesh = SgtHelper.CreateTempMesh("Orbit Visual");
}
positions.Clear();
coords.Clear();
colors.Clear();
indices.Clear();
foreach (var floatingCamera in SgtFloatingCamera.Instances)
{
var position = floatingCamera.CalculatePosition(ref orbit.ParentPoint.Position);
var rotation = orbit.ParentPoint.transform.rotation * Quaternion.Euler(orbit.Tilt);
var r1 = orbit.Radius;
var r2 = orbit.Radius * (1.0f - orbit.Oblateness);
var i1 = r1 - Thickness * 0.5;
var i2 = r2 - Thickness * 0.5;
var o1 = i1 + Thickness;
var o2 = i2 + Thickness;
var step = 360.0 / Points;
var stepI = 1.0f / (Points - 1);
for (var i = 0; i < Points; i++)
{
var angle = (orbit.Angle - i * step) * Mathf.Deg2Rad;
var sin = System.Math.Sin(angle);
var cos = System.Math.Cos(angle);
// Inner
{
var point = position;
var offsetX = sin * i1;
var offsetY = 0.0;
var offsetZ = cos * i2;
SgtFloatingOrbit.Rotate(rotation, ref offsetX, ref offsetY, ref offsetZ);
point.x += (float)offsetX;
point.y += (float)offsetY;
point.z += (float)offsetZ;
point = transform.InverseTransformPoint(point);
positions.Add(point);
}
// Outer
{
var point = position;
var offsetX = sin * o1;
var offsetY = 0.0;
var offsetZ = cos * o2;
SgtFloatingOrbit.Rotate(rotation, ref offsetX, ref offsetY, ref offsetZ);
point.x += (float)offsetX;
point.y += (float)offsetY;
point.z += (float)offsetZ;
point = transform.InverseTransformPoint(point);
positions.Add(point);
}
var u = stepI * i;
var color = Colors.Evaluate(u);
coords.Add(new Vector2(u, 0.0f));
coords.Add(new Vector2(u, 1.0f));
colors.Add(color);
colors.Add(color);
}
for (var i = 0; i < Points; i++)
{
var indexA = i * 2 + 0;
var indexB = i * 2 + 1;
var indexC = i * 2 + 2; indexC %= Points * 2;
var indexD = i * 2 + 3; indexD %= Points * 2;
indices.Add(indexA);
indices.Add(indexB);
indices.Add(indexC);
indices.Add(indexD);
indices.Add(indexC);
indices.Add(indexB);
}
visualMesh.SetVertices(positions);
visualMesh.SetTriangles(indices, 0);
visualMesh.SetUVs(0, coords);
visualMesh.SetColors(colors);
visualMesh.RecalculateBounds();
return;
}
}