public void Draw(Renderer renderer)
{
if (renderer.DrawWireframe)
{
return;
}
Profiler.Begin("Skybox Draw");
Shaders.Skybox.Set(renderer);
Atmosphere a = StarSystem.ActiveSystem.GetCurrentAtmosphere(renderer.ActiveCamera.Position);
if (a != null && a.Planet.WasDrawnLastFrame)
{
a.SetConstantBuffer(renderer);
}
else
{
renderer.Context.PixelShader.SetConstantBuffer(3, null);
}
renderer.Context.Rasterizer.State = renderer.rasterizerStateSolidNoCull;
renderer.Context.OutputMerger.SetDepthStencilState(renderer.depthStencilStateNoDepth);
renderer.Context.InputAssembler.SetVertexBuffers(0, new D3D11.VertexBufferBinding(Resources.QuadVertexBuffer, Utilities.SizeOf <float>() * 5, 0));
renderer.Context.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleList;
renderer.Context.InputAssembler.SetIndexBuffer(Resources.QuadIndexBuffer, SharpDX.DXGI.Format.R16_UInt, 0);
Vector3 lightDir = Vector3d.Normalize(renderer.ActiveCamera.Position - StarSystem.ActiveSystem.GetStar().Position);
for (int i = 0; i < 6; i++)
{
Matrix m = sides[i];
float[] buffer = new float[] {
m.M11, m.M12, m.M13, m.M14,
m.M21, m.M22, m.M23, m.M24,
m.M31, m.M32, m.M33, m.M34,
m.M41, m.M42, m.M43, m.M44,
lightDir.X, lightDir.Y, lightDir.Z, 0
};
renderer.Context.PixelShader.SetShaderResource(1, TextureViews[i]);
renderer.Context.UpdateSubresource(buffer, constBuffer);
renderer.Context.VertexShader.SetConstantBuffer(1, constBuffer);
renderer.Context.DrawIndexed(6, 0, 0);
}
renderer.Context.Rasterizer.State = renderer.DrawWireframe ? renderer.rasterizerStateWireframeCullBack : renderer.rasterizerStateSolidCullBack;
renderer.Context.OutputMerger.SetDepthStencilState(renderer.depthStencilStateDefault);
Profiler.End();
}
public Planet(string name, Vector3d pos, double radius, double mass, double terrainHeight, Atmosphere atmosphere = null) : base(pos, radius, mass)
{
Name = name;
Radius = radius;
TerrainHeight = terrainHeight;
Atmosphere = atmosphere;
BoundingRadius = radius + terrainHeight;
if (atmosphere != null)
{
atmosphere.Planet = this;
}
OceanHeight = .5;
OceanColor = new Color(35, 90, 200);
}
public virtual void UpdateForces(double deltaTime)
{
if (DisablePhysics)
{
return;
}
// gravity
foreach (PhysicsBody cb in PhysicsSystem.bodies)
{
if (cb is CelestialBody && this != cb && !cb.DisablePhysics)
{
AddForce(Physics.Gravity(this, cb, deltaTime), Vector3.Zero);
}
}
// drag
if (!(this is CelestialBody) && Drag > 0)
{
Atmosphere a = StarSystem.ActiveSystem.GetCurrentAtmosphere(Position);
if (a != null)
{
Vector3d dir = (Position - a.Planet.Position);
double h = dir.Length();
dir /= h;
if (h < a.Radius)
{
Vector3d airspeed = (Velocity - a.Planet.Velocity) - a.Planet.VelocityOnPoint(Position - a.Planet.Position);
double v = airspeed.LengthSquared();
if (v > .1)
{
double temp;
double pressure;
double density;
double c;
a.MeasureProperties(dir, h, out pressure, out density, out temp, out c);
double drag = .5 * density * v * Drag;
AddForce(Vector3d.Normalize(-airspeed) * drag, Vector3.Zero);
}
}
}
}
}
public void DrawHUD(Renderer renderer)
{
// time warp rect
renderer.D2DContext.FillRectangle(
new RawRectangleF(0, 0, 100, 40),
renderer.Brushes["White"]);
// time warp
renderer.D2DContext.DrawText("x" + TimeWarp.ToString("N0"), renderer.SegoeUI24,
new RawRectangleF(10, 0, 100, 40),
renderer.Brushes["Black"]);
// center rect
float xmid = renderer.ResolutionX * .5f;
renderer.D2DContext.FillRectangle(
new RawRectangleF(xmid - 150, 0, xmid + 150, 50),
renderer.Brushes["White"]);
renderer.SegoeUI24.TextAlignment = SharpDX.DirectWrite.TextAlignment.Leading;
renderer.SegoeUI14.TextAlignment = SharpDX.DirectWrite.TextAlignment.Leading;
// get nearest body/star
CelestialBody cb = StarSystem.ActiveSystem.GetCurrentSOI(player.Position);
Vector3d dir = cb.Position - player.Position;
double h = dir.Length();
dir /= h;
if (h > cb.SOI)
{
cb = StarSystem.ActiveSystem.GetStar();
}
Vector3d relative = cb.Velocity;
string vlbl = "Orbit";
double r = cb.Radius;
double radarAltitude = h - cb.GetHeight(dir);
if (radarAltitude < 10000)
{
vlbl = "Surface";
relative = cb.VelocityOnPoint(player.Position - cb.Position) + cb.Velocity;
}
if (cb is Planet)
{
Planet p = cb as Planet;
r = p.Radius + p.OceanHeight * p.TerrainHeight;
#region surface info
double temp = p.GetTemperature(dir);
double humid = p.GetHumidity(dir) * 100;
renderer.D2DContext.FillRectangle(
new RawRectangleF(xmid + 155, 0, xmid + 260, 80),
renderer.Brushes["White"]);
renderer.D2DContext.DrawText("Surface: ", renderer.SegoeUI14,
new RawRectangleF(xmid + 155, 3, xmid + 240, 10),
renderer.Brushes["Black"]);
renderer.D2DContext.DrawText(temp.ToString("F1") + "°C", renderer.SegoeUI14,
new RawRectangleF(xmid + 165, 15, xmid + 240, 30),
renderer.Brushes["Black"]);
renderer.D2DContext.DrawText(humid.ToString("F1") + "%", renderer.SegoeUI14,
new RawRectangleF(xmid + 165, 30, xmid + 240, 45),
renderer.Brushes["Black"]);
#endregion
#region atmosphere info
Atmosphere a = p.Atmosphere;
if (a != null && h < a.Radius * 1.5)
{
double atemp;
double pressure;
double density;
double c;
a.MeasureProperties(dir, h, out pressure, out density, out atemp, out c);
if (pressure > .1)
{
renderer.D2DContext.FillRectangle(
new RawRectangleF(xmid - 260, 0, xmid - 155, 80),
renderer.Brushes["White"]);
renderer.D2DContext.DrawText("Atmosphere: ", renderer.SegoeUI14,
new RawRectangleF(xmid - 250, 3, xmid - 155, 10),
renderer.Brushes["Black"]);
renderer.D2DContext.DrawText(atemp.ToString("F1") + "°C", renderer.SegoeUI14,
new RawRectangleF(xmid - 240, 15, xmid - 155, 30),
renderer.Brushes["Black"]);
renderer.D2DContext.DrawText(pressure.ToString("F1") + " kPa", renderer.SegoeUI14,
new RawRectangleF(xmid - 240, 30, xmid - 155, 45),
renderer.Brushes["Black"]);
renderer.D2DContext.DrawText(density.ToString("F1") + " kg/m^3", renderer.SegoeUI14,
new RawRectangleF(xmid - 240, 45, xmid - 155, 60),
renderer.Brushes["Black"]);
renderer.D2DContext.DrawText("Mach " + (player.Velocity.Length() / c).ToString("F2"), renderer.SegoeUI14,
new RawRectangleF(xmid - 240, 60, xmid - 155, 75),
renderer.Brushes["Black"]);
}
}
#endregion
}
// altitude
renderer.D2DContext.DrawText(Physics.FormatDistance(h - r), renderer.SegoeUI24,
new RawRectangleF(xmid, 0, xmid + 150, 40),
renderer.Brushes["Black"]);
// body label
renderer.D2DContext.DrawText(cb.Name, renderer.SegoeUI14,
new RawRectangleF(xmid, 30, xmid + 150, 50),
renderer.Brushes["Black"]);
Orbit o = new Orbit(player.Position - cb.Position, player.Velocity - cb.Velocity, cb);
renderer.SegoeUI14.ParagraphAlignment = SharpDX.DirectWrite.ParagraphAlignment.Far;
renderer.SegoeUI14.TextAlignment = SharpDX.DirectWrite.TextAlignment.Leading;
renderer.D2DContext.DrawText(o.ToString(), renderer.SegoeUI14,
new RawRectangleF(renderer.ResolutionX * .5f, renderer.ResolutionY, renderer.ResolutionX * .5f, renderer.ResolutionY),
renderer.Brushes["White"]);
// TODO: fix keplerian orbits
//List<Vector3d> pts = new List<Vector3d>();
//Vector3d op, ov;
//for (double t = 0; t < o.T; t += o.T * .05) {
// o.ToCartesian(cb, t, out op, out ov);
// pts.Add(cb.Position + op);
//}
//o.ToCartesian(cb, o.T, out op, out ov);
//pts.Add(cb.Position + op);
//Debug.DrawLine(Color.CornflowerBlue, pts.ToArray());
//
//foreach (Vector3d p in pts) {
// Vector3d pos;
// double scale;
// renderer.Camera.GetScaledSpace(p + cb.Position, out pos, out scale);
// Debug.DrawBox(Color.Green, new OrientedBoundingBox(pos - (Vector3d)Vector3.One * 10000 * scale, pos + (Vector3d)Vector3.One * 10000 * scale));
//}
// velocity
renderer.D2DContext.DrawText(Physics.FormatSpeed((player.Velocity - relative).Length()), renderer.SegoeUI24,
new RawRectangleF(xmid - 130, 0, xmid, 40),
renderer.Brushes["Black"]);
renderer.D2DContext.DrawText(vlbl, renderer.SegoeUI14,
new RawRectangleF(xmid - 130, 35, xmid, 50),
renderer.Brushes["Black"]);
}