public double CalculateSpaceBetween(Location2d location2, double size2)
{
double dist = Location2d.Distance(this.location, location2);
dist -= size;
dist -= size2;
return(dist);
}
public double CalculateSpaceBetween(Thing t2)
{
double dist = Location2d.Distance(location, t2.location);
dist -= size;
dist -= t2.size;
return(dist);
}
public Thing(FieldState field, Location2d location, Velocity2d velocity, double size)
{
this.id = idNext++;
this.myField = field;
this.size = size;
this.location = location;
this.velocity = velocity;
// random color
color = Color.FromArgb(r.Next(256), r.Next(256), r.Next(256));
}
public void Test_Thing_ColorForSerialization_Get()
{
Field f = new Field();
Location2d loc = new Location2d();
Velocity2d vel = new Velocity2d();
double size = 14.0;
Thing thing = new Thing(f.CurrentState, loc, vel, size);
Assert.AreEqual(thing.color.R, thing.ColorForSerialization.red);
Assert.AreEqual(thing.color.G, thing.ColorForSerialization.green);
Assert.AreEqual(thing.color.B, thing.ColorForSerialization.blue);
}
public void Test_Thing_OptimalDeltaT2()
{
Field f = new Field();
Location2d loc = new Location2d();
Velocity2d vel = new Velocity2d(0, 28);
double size = 14.0;
Thing thing = new Thing(f.CurrentState, loc, vel, size);
decimal expectedDeltaT = 0.5m;
Assert.AreEqual(expectedDeltaT, thing.CalculateOptimalDeltaT());
}
public void Test_Thing_Mass()
{
Field f = new Field();
Location2d loc = new Location2d();
Velocity2d vel = new Velocity2d();
double size = 14.0;
Thing thing = new Thing(f.CurrentState, loc, vel, size);
double expectedMass = size * size * Math.PI;
Assert.AreEqual(expectedMass, thing.Mass);
}
public Thing2(Field2 field, Location2d location, Velocity2d velocity, double size)
{
this.id = idNext++;
this.myField = field;
this.size = size;
this.location = location;
this.velocity = velocity;
this.rezinochki = new List <Rezinochka>();
// random color
color = Color.FromArgb(r.Next(256), r.Next(256), r.Next(256));
}
public void Test_Thing_CtorMain()
{
Field f = new Field();
Location2d loc = new Location2d();
Velocity2d vel = new Velocity2d();
double size = 14.0;
Thing thing = new Thing(f.CurrentState, loc, vel, size);
Assert.IsTrue(thing.id > -1);
Assert.AreSame(thing.location, loc);
Assert.AreSame(thing.velocity, vel);
Assert.AreEqual(thing.size, size);
}
public static Thing Combine(List <Thing> list)
{
if (list.Count < 2)
{
throw new PhysicsException("Combine called with <2 items. This does not make sense.");
}
AveragerUtil massA = new AveragerUtil();
AveragerUtil colorR = new AveragerUtil();
AveragerUtil colorG = new AveragerUtil();
AveragerUtil colorB = new AveragerUtil();
AveragerUtil locXM = new AveragerUtil();
AveragerUtil locYM = new AveragerUtil();
AveragerUtil velIM = new AveragerUtil();
AveragerUtil velJM = new AveragerUtil();
foreach (Thing t in list)
{
massA.AddMeasurement(t.Mass);
colorR.AddMeasurement(t.color.R);
colorG.AddMeasurement(t.color.G);
colorB.AddMeasurement(t.color.B);
locXM.AddMeasurement(t.location.x * t.Mass);
locYM.AddMeasurement(t.location.y * t.Mass);
velIM.AddMeasurement(t.velocity.i * t.Mass);
velJM.AddMeasurement(t.velocity.j * t.Mass);
}
// mass
double size = Math.Sqrt(massA.Sum / Math.PI);
// color
Color color = Color.FromArgb((int)colorR.Average, (int)colorG.Average, (int)colorB.Average);
// location
Location2d loc = new Location2d(locXM.Sum / massA.Sum, locYM.Sum / massA.Sum);
// velocity
Velocity2d vel = new Velocity2d(velIM.Sum / massA.Sum, velJM.Sum / massA.Sum);
return(new Thing(list[0].myField, loc, vel, size));
}
public Vector2d CalculateForce(Thing2 t)
{
if (t != this.a && t != this.b)
{
return(new Vector2d(0.0, 0.0));
}
double dist = Location2d.Distance(this.a.location, this.b.location);
Thing2 ot = (t == this.a) ? this.b : this.a;
Vector2d force = new Vector2d(t.location, ot.location);
force.Normalize();
force *= dist * k;
return(force);
}
public void Test_Thing_ColorForSerialization_Set()
{
Field f = new Field();
Location2d loc = new Location2d();
Velocity2d vel = new Velocity2d();
double size = 14.0;
Thing thing = new Thing(f.CurrentState, loc, vel, size);
ColorSrz colorSrz = new ColorSrz();
colorSrz.red = 68;
colorSrz.green = 71;
colorSrz.blue = 14;
thing.ColorForSerialization = colorSrz;
Assert.AreEqual(thing.color.R, thing.color.R);
Assert.AreEqual(thing.color.G, thing.color.G);
Assert.AreEqual(thing.color.B, thing.color.B);
}
public void Test_Thing_MakeCopy()
{
Field f = new Field();
Location2d loc = new Location2d();
Velocity2d vel = new Velocity2d();
double size = 14.0;
Thing thing = new Thing(f.CurrentState, loc, vel, size);
Thing copy = thing.MakeCopy();
Assert.AreEqual(thing.id, copy.id);
//TODO: also need to test Id which includes FieldState's time
Assert.AreEqual(thing.color, copy.color);
Assert.AreEqual(thing.size, copy.size);
Assert.AreEqual(thing.Mass, copy.Mass); // calculated
Assert.AreEqual(thing.location, copy.location);
Assert.AreEqual(thing.velocity, copy.velocity);
Assert.IsNull(copy.gravityNet);
Assert.IsNull(copy.gravityComponents);
}
public void InitItems(int nrThings)
{
Random r = new Random();
int nrThingsDiscarded = 0;
// the sun
Location2d sunLoc = new Location2d(GlobalConfig.viewport.Left + GlobalConfig.viewport.Width / 2, GlobalConfig.viewport.Top + GlobalConfig.viewport.Height / 2);
Velocity2d sunVel = new Velocity2d(0, 0);
Thing sun = new Thing(this, sunLoc, sunVel, 14);
things.Add(sun);
// make things
for (int i = 0; i < nrThings - 1;)
{
// if nrDiscarded is too high, we need to exit
if (nrThingsDiscarded / nrThings > 71)
{
throw new PhysicsException("Please lower Nr Things, they are not fitting");
}
double rr = r.NextDouble();
double thingSize = rr * (GlobalConfig.sizeMax - GlobalConfig.sizeMin) + GlobalConfig.sizeMin;
// location
double left = myField.Viewport.Left + thingSize;
double right = myField.Viewport.Right - thingSize;
double top = myField.Viewport.Top + thingSize;
double bottom = myField.Viewport.Bottom - thingSize;
double x = r.NextDouble() * (right - left) + left;
double y = r.NextDouble() * (bottom - top) + top;
Location2d location = new Location2d(x, y);
// check for overlap with previous things
bool foundOverlap = false;
foreach (Thing t in things)
{
double dist = t.CalculateSpaceBetween(location, thingSize);
if (dist < 0)
{
foundOverlap = true;
break;
}
}
if (foundOverlap)
{
nrThingsDiscarded++;
continue;
}
// velocity: get vector in direction of the sun, and then rotate it left or right
Vector2d vel = new Vector2d(location, sun.location);
vel.Normalize();
vel.Rotate(r.Next() == 0 ? -Math.PI / 2 : Math.PI / 2);
double coeff = r.NextDouble() * GlobalConfig.velocityMax;
vel = vel * coeff;
Velocity2d velocity = new Velocity2d(vel);
// make the thing
Thing thing = new Thing(this, location, velocity, thingSize);
things.Add(thing);
i++;
}
Util.Logger.AddMessage("Nr things discarded: " + nrThingsDiscarded);
} //InitItems()
public void InitItems(int nrThings)
{
Random r = new Random();
int nrThingsDiscarded = 0;
// make things
for (int i = 0; i < nrThings;)
{
double rr = r.NextDouble();
double thingSize = rr * (GlobalConfig.sizeMax - GlobalConfig.sizeMin) + GlobalConfig.sizeMin;
// location
double left = this.Viewport.Left + thingSize;
double right = this.Viewport.Right - thingSize;
double top = this.Viewport.Top + thingSize;
double bottom = this.Viewport.Bottom - thingSize;
double x = r.NextDouble() * (right - left) + left;
double y = r.NextDouble() * (bottom - top) + top;
Location2d location = new Location2d(x, y);
// check for overlap with previous things
bool foundOverlap = false;
foreach (Thing2 t in things)
{
double dist = t.CalculateSpaceBetween(location, thingSize);
if (dist < 0)
{
foundOverlap = true;
break;
}
}
if (foundOverlap)
{
nrThingsDiscarded++;
continue;
}
Velocity2d velocity = new Velocity2d(0.0, 0.0);
// make the thing
Thing2 thing = new Thing2(this, location, velocity, thingSize);
things.Add(thing);
i++;
}
Util.Logger.AddMessage("Nr things discarded: " + nrThingsDiscarded);
// add rezinochki
for (int idThing = 0; idThing < things.Count - 1; idThing += 2)
{
Thing2 ta = this.things[idThing];
Thing2 tb = this.things[idThing + 1];
Rezinochka rez = new Rezinochka(Color.LightYellow, 1.0);
rez.Attach(ta, Rezinochka.Orientation.A);
rez.Attach(tb, Rezinochka.Orientation.B);
this.rezinochki.Add(rez);
}
} //InitItems()
