private void RegenerateMeshes()
{
var asteroids = default(List <SgtBeltAsteroid>);
var pool = default(bool);
CalculateAsteroids(out asteroids, out pool);
if (asteroids != null)
{
// Sort asteroids into groups
for (var i = asteroids.Count - 1; i >= 0; i--)
{
var asteroid = asteroids[i];
if (asteroid != null)
{
var group = GetGroup(asteroid.MainTex, asteroid.HeightTex);
group.Asteroids.Add(asteroid);
}
}
// Pool asteroids?
if (pool == true)
{
SgtClassPool <SgtBeltAsteroid> .Add(asteroids);
}
// Build groups
for (var i = groups.Count - 1; i >= 0; i--)
{
var group = groups[i];
var groupAsteroids = group.Asteroids;
var maxWidth = 0.0f;
var maxHeight = 0.0f;
SgtProceduralMesh.Clear();
for (var j = groupAsteroids.Count - 1; j >= 0; j--)
{
var asteroid = groupAsteroids[j];
var radius = asteroid.Radius;
var distance = asteroid.OrbitDistance;
var height = asteroid.Height;
var uv = SgtHelper.CalculateSpriteUV(asteroid.MainTex);
maxWidth = Mathf.Max(maxWidth, distance + radius);
maxHeight = Mathf.Max(maxHeight, height + radius);
SgtProceduralMesh.PushPosition(asteroid.OrbitAngle, distance, asteroid.OrbitSpeed, 4);
SgtProceduralMesh.PushColor(asteroid.Color, 4);
SgtProceduralMesh.PushNormal(-1.0f, 1.0f, 0.0f);
SgtProceduralMesh.PushNormal(1.0f, 1.0f, 0.0f);
SgtProceduralMesh.PushNormal(-1.0f, -1.0f, 0.0f);
SgtProceduralMesh.PushNormal(1.0f, -1.0f, 0.0f);
SgtProceduralMesh.PushTangent(asteroid.Angle / Mathf.PI, asteroid.Spin / Mathf.PI, 0.0f, 0.0f, 4);
SgtProceduralMesh.PushCoord1(uv.x, uv.y);
SgtProceduralMesh.PushCoord1(uv.z, uv.y);
SgtProceduralMesh.PushCoord1(uv.x, uv.w);
SgtProceduralMesh.PushCoord1(uv.z, uv.w);
SgtProceduralMesh.PushCoord2(radius, height, 4);
}
var bounds = new Bounds(Vector3.zero, new Vector3(maxWidth * 2.0f, maxHeight * 2.0f, maxWidth * 2.0f));
SgtProceduralMesh.SplitQuads(HideFlags.DontSave);
var meshCount = SgtProceduralMesh.Count;
// Copy meshes
for (var j = 0; j < meshCount; j++)
{
var mesh = SgtProceduralMesh.Pop();
var model = group.Models.Count > j ? group.Models[j] : SgtBeltModel.Create(group);
mesh.bounds = bounds;
model.Mesh = mesh;
}
}
}
}
