void CalculateAsteroidsTask()
{
cubeCount = 0;
Vector3 position;
BoundingFrustum frustum;
lock (_camera) {
position = _camera.Position;
frustum = _camera.Frustum;
}
var close = AsteroidFieldShared.GetCloseCube(cameraPos, field.CubeSize);
int amountCubes = (int)Math.Floor((field.FillDist / field.CubeSize)) + 1;
for (int x = -amountCubes; x <= amountCubes; x++)
{
for (int y = -amountCubes; y <= amountCubes; y++)
{
for (int z = -amountCubes; z <= amountCubes; z++)
{
var center = close + new Vector3(x, y, z) * field.CubeSize;
var closestDistance = (Vector3.Distance(center, position) - cubeRadius);
if (closestDistance >= field.FillDist || closestDistance >= lastFog)
{
continue;
}
if (!field.Zone.Shape.ContainsPoint(center))
{
continue;
}
var cubeSphere = new BoundingSphere(center, cubeRadius);
if (!frustum.Intersects(cubeSphere))
{
continue;
}
float tval;
if (!AsteroidFieldShared.CubeExists(center, field.EmptyCubeFrequency, out tval))
{
continue;
}
if (GetExclusionZone(center) != null)
{
continue;
}
cubes[cubeCount++] = new CalculatedCube(center, field.CubeRotation.GetRotation(tval) * Matrix4x4.CreateTranslation(center));
}
}
}
}
void CalculateAsteroids()
{
Vector3 position;
BoundingFrustum frustum;
lock (_camera) {
position = _camera.Position;
frustum = _camera.Frustum;
}
ZfrustumCulled = ZexistCulled = ZexcludeCulled = ZshapeCulled = 0;
var close = AsteroidFieldShared.GetCloseCube(cameraPos, field.CubeSize);
var cubeRad = new Vector3(field.CubeSize) * 0.5f;
int amountCubes = (int)Math.Floor((field.FillDist / field.CubeSize)) + 1;
for (int x = -amountCubes; x <= amountCubes; x++)
{
for (int y = -amountCubes; y <= amountCubes; y++)
{
for (int z = -amountCubes; z <= amountCubes; z++)
{
var center = close + new Vector3(x * field.CubeSize, y * field.CubeSize, z * field.CubeSize);
if (!field.Zone.Shape.ContainsPoint(center))
{
continue;
}
//var cubeBox = new BoundingBox(center - cubeRad, center + cubeRad);
//if (!frustum.Intersects(cubeBox))
//continue;
var cubeSphere = new BoundingSphere(center, field.CubeSize * 0.5f);
if (!frustum.Intersects(cubeSphere))
{
continue;
}
float tval;
if (!AsteroidFieldShared.CubeExists(center, field.EmptyCubeFrequency, out tval))
{
continue;
}
if (GetExclusionZone(center) != null)
{
continue;
}
cubes[cubeCount++] = new CalculatedCube(center, Matrix4.CreateTranslation(center) * field.CubeRotation.GetRotation(tval));
}
}
}
_asteroidsCalculated = true;
}
public AsteroidFieldRenderer(AsteroidField field, SystemRenderer sys)
{
this.field = field;
this.sys = sys;
//Set up renderDistSq
float rdist = 0f;
if (field.Zone.Shape is ZoneSphere)
{
rdist = ((ZoneSphere)field.Zone.Shape).Radius;
}
else if (field.Zone.Shape is ZoneEllipsoid)
{
var s = ((ZoneEllipsoid)field.Zone.Shape).Size;
rdist = Math.Max(Math.Max(s.X, s.Y), s.Z);
}
else if (field.Zone.Shape is ZoneBox)
{
var s = ((ZoneEllipsoid)field.Zone.Shape).Size;
rdist = Math.Max(Math.Max(s.X, s.Y), s.Z);
}
if (field.BillboardCount != -1)
{
astbillboards = new AsteroidBillboard[field.BillboardCount];
}
rdist += field.FillDist;
renderDistSq = rdist * rdist;
cubes = new CalculatedCube[1000];
_asteroidsCalculation = CalculateAsteroids;
if (field.Cube.Count > 0)
{
CreateBufferObject();
}
//Set up band
if (field.Band == null)
{
return;
}
if (bandShader == null)
{
bandShader = ShaderCache.Get("AsteroidBand.vs", "AsteroidBand.frag");
_bsTexture = bandShader.Shader.GetLocation("Texture");
_bsCameraPosition = bandShader.Shader.GetLocation("CameraPosition");
_bsColorShift = bandShader.Shader.GetLocation("ColorShift");
_bsTextureAspect = bandShader.Shader.GetLocation("TextureAspect");
}
Vector3 sz;
if (field.Zone.Shape is ZoneSphere)
{
sz = new Vector3(((ZoneSphere)field.Zone.Shape).Radius);
}
else if (field.Zone.Shape is ZoneEllipsoid)
{
sz = ((ZoneEllipsoid)field.Zone.Shape).Size;
}
else
{
return;
}
sz.Xz -= new Vector2(field.Band.OffsetDistance);
lightingRadius = Math.Max(sz.X, sz.Z);
renderBand = true;
bandTransform = (
Matrix4.CreateScale(sz.X, field.Band.Height / 2, sz.Z) *
field.Zone.RotationMatrix *
Matrix4.CreateTranslation(field.Zone.Position)
);
bandCylinder = new OpenCylinder(SIDES);
bandNormal = bandTransform;
bandNormal.Invert();
bandNormal.Transpose();
}
public AsteroidFieldRenderer(AsteroidField field, SystemRenderer sys)
{
this.field = field;
this.sys = sys;
//Set up renderDistSq
float rdist = 0f;
if (field.Zone.Shape is ZoneSphere)
{
rdist = ((ZoneSphere)field.Zone.Shape).Radius;
}
else if (field.Zone.Shape is ZoneEllipsoid)
{
var s = ((ZoneEllipsoid)field.Zone.Shape).Size;
rdist = Math.Max(Math.Max(s.X, s.Y), s.Z);
}
else if (field.Zone.Shape is ZoneBox)
{
var s = ((ZoneEllipsoid)field.Zone.Shape).Size;
rdist = Math.Max(Math.Max(s.X, s.Y), s.Z);
}
if (field.BillboardCount != -1)
{
billboardCube = new AsteroidBillboard[field.BillboardCount];
for (int i = 0; i < field.BillboardCount; i++)
{
billboardCube[i].Spawn(this);
}
calculatedBillboards = new AsteroidBillboard[field.BillboardCount];
}
rdist += field.FillDist;
renderDistSq = rdist * rdist;
cubes = new CalculatedCube[4000];
_asteroidsCalculation = CalculateAsteroidsTask;
if (field.Cube.Count > 0)
{
CreateBufferObject();
}
//Set up band
if (field.Band == null)
{
return;
}
if (bandShader == null)
{
bandShader = Shaders.AsteroidBand.Get();
_bsTexture = bandShader.Shader.GetLocation("Texture");
_bsCameraPosition = bandShader.Shader.GetLocation("CameraPosition");
_bsColorShift = bandShader.Shader.GetLocation("ColorShift");
_bsTextureAspect = bandShader.Shader.GetLocation("TextureAspect");
}
Vector3 sz;
if (field.Zone.Shape is ZoneSphere)
{
sz = new Vector3(((ZoneSphere)field.Zone.Shape).Radius);
}
else if (field.Zone.Shape is ZoneEllipsoid)
{
sz = ((ZoneEllipsoid)field.Zone.Shape).Size;
}
else
{
return;
}
sz.X -= field.Band.OffsetDistance;
sz.Z -= field.Band.OffsetDistance;
lightingRadius = Math.Max(sz.X, sz.Z);
renderBand = true;
bandTransform = (
Matrix4x4.CreateScale(sz.X, field.Band.Height / 2, sz.Z) *
field.Zone.RotationMatrix *
Matrix4x4.CreateTranslation(field.Zone.Position)
);
bandCylinder = sys.ResourceManager.GetOpenCylinder(SIDES);
}
