public ProjectileTracer(Device device, Ray hitRay, IOrderedEnumerable <CollisionModelHit> orderedHits, TestShellInfo testShell)
{
Log.Info("new projectile tracer");
_tracerRay = hitRay;
_hitMeshs = new List <TankMesh>();
_device = device;
_vertexDeclaration = new VertexDeclaration(_device, new[]
{
new VertexElement(0, 0, DeclarationType.Float3, DeclarationMethod.Default, DeclarationUsage.Position, 0),
new VertexElement(0, 12, DeclarationType.Float1, DeclarationMethod.Default, DeclarationUsage.Color, 0),
VertexElement.VertexDeclarationEnd,
});
_orderedHits = orderedHits;
Refresh(testShell);
}
public void Refresh(TestShellInfo testShell)
{
Log.Info("refresh");
_tracerLines = new List <TracerLineVertex>();
_tracerLines.Add(new TracerLineVertex {
Position = _tracerRay.Position, Penetration = 0
});
PenetrationState penetrationState = PenetrationState.NotApplicable;
bool mayRicochet = true;
float equivalentThickness = 0.0f;
float heatExplodedDistance = 0.0f;
bool heatExploded = false;
foreach (var hit in _orderedHits)
{
_hitMeshs.Add(hit.Mesh);
if (!heatExploded)
{
_tracerLines.Add(new TracerLineVertex {
Position = _tracerRay.Position + hit.Distance * _tracerRay.Direction, Penetration = equivalentThickness
});
}
var thisImpactAngle = DxUtils.ConvertRadiansToDegrees(Math.Acos(hit.InjectionCosine));
if (hit.Armor.UseHitAngle && hit.Armor.Value != 0.0)
{
mayRicochet = mayRicochet && hit.Armor.MayRicochet;
double thisNomarlizationAngle = testShell.ShellType.BasicNormalization();
if (testShell.Caliber >= hit.Armor.Value * 3.0)
{
mayRicochet = false;
thisNomarlizationAngle *= 1.4 * testShell.Caliber / hit.Armor.Value;
}
else if (testShell.Caliber >= hit.Armor.Value * 2.0)
{
thisNomarlizationAngle *= 1.4 * testShell.Caliber / hit.Armor.Value;
}
if (mayRicochet && thisImpactAngle > testShell.ShellType.RicochetAngle())
{
penetrationState = PenetrationState.Richochet;
break;
}
if (testShell.ShellType.HasNormalizationEffect())
{
if (thisNomarlizationAngle > thisImpactAngle)
{
thisNomarlizationAngle = thisImpactAngle;
}
thisImpactAngle -= thisNomarlizationAngle;
}
if (!heatExploded)
{
equivalentThickness += (float)(hit.Armor.Value / Math.Cos(DxUtils.ConvertDegreesToRadians(thisImpactAngle)));
}
else
{
var distance = (hit.Distance - heatExplodedDistance);
var attenuation = 1 - distance * 0.5;
if (attenuation < 0)
{
_tracerLines.Add(new TracerLineVertex {
Position = _tracerRay.Position + hit.Distance * _tracerRay.Direction, Penetration = 0
});
penetrationState = PenetrationState.Unpenetratable;
break;
}
equivalentThickness += (float)(hit.Armor.Value / attenuation / Math.Cos(DxUtils.ConvertDegreesToRadians(thisImpactAngle)));
_tracerLines.Add(new TracerLineVertex {
Position = _tracerRay.Position + hit.Distance * _tracerRay.Direction, Penetration = equivalentThickness
});
}
}
else
{
if (!heatExploded)
{
equivalentThickness += (float)hit.Armor.Value;
}
else
{
var distance = (hit.Distance - heatExplodedDistance);
var attenuation = 1 - distance * 0.5;
if (attenuation < 0)
{
_tracerLines.Add(new TracerLineVertex {
Position = _tracerRay.Position + hit.Distance * _tracerRay.Direction, Penetration = 0
});
penetrationState = PenetrationState.Unpenetratable;
break;
}
equivalentThickness += (float)(hit.Armor.Value / attenuation);
_tracerLines.Add(new TracerLineVertex {
Position = _tracerRay.Position + hit.Distance * _tracerRay.Direction, Penetration = equivalentThickness
});
}
}
if (!hit.Armor.IsSpacingArmor)
{
penetrationState = PenetrationState.Penetratable;
break;
}
if (testShell.ShellType == ShellType.HE || testShell.ShellType == ShellType.PremiumHE)
{
penetrationState = PenetrationState.Unpenetratable;
break;
}
if (testShell.ShellType == ShellType.HEAT && !heatExploded)
{
heatExploded = true;
heatExplodedDistance = hit.Distance;
mayRicochet = false;
}
_tracerLines.Add(new TracerLineVertex {
Position = _tracerRay.Position + hit.Distance * _tracerRay.Direction, Penetration = equivalentThickness
});
}
if (penetrationState == PenetrationState.Penetratable)
{
for (int i = 0; i != _tracerLines.Count; ++i)
{
_tracerLines[i] = new TracerLineVertex {
Position = _tracerLines[i].Position, Penetration = (equivalentThickness - _tracerLines[i].Penetration) * 0.5f
};
}
}
else if (penetrationState == PenetrationState.Richochet ||
penetrationState == PenetrationState.Unpenetratable ||
penetrationState == PenetrationState.NotApplicable)
{
for (int i = 0; i != _tracerLines.Count; ++i)
{
_tracerLines[i] = new TracerLineVertex {
Position = _tracerLines[i].Position, Penetration = -1.0f
};
}
}
BuildCollision();
}
public ShootTestResult GetShootTestResult(TestShellInfo testShell)
{
PenetrationState penetrationState = PenetrationState.NotApplicable;
double equivalentThickness = 0.0;
double impactAngle = 0.0;
double nomarlizationAngle = 0.0;
bool is2X = false;
bool is3X = false;
bool mayRicochet = true;
bool heatExploded = false;
double heatExplodedDistance = 0.0;
bool isFirstHit = true;
var orderedHits = Hits.OrderBy((h) => h.Distance);
foreach (var hit in orderedHits)
{
var thisImpactAngle = DxUtils.ConvertRadiansToDegrees(Math.Acos(hit.InjectionCosine));
if (isFirstHit)
{
impactAngle = thisImpactAngle;
}
if (hit.Armor.UseHitAngle && hit.Armor.Value != 0.0)
{
mayRicochet = mayRicochet && hit.Armor.MayRicochet;
double thisNomarlizationAngle = testShell.ShellType.BasicNormalization();
if (testShell.Caliber >= hit.Armor.Value * 3.0 && testShell.ShellType.HasNormalizationEffect())
{
is3X = true;
is2X = true;
mayRicochet = false;
thisNomarlizationAngle *= 1.4 * testShell.Caliber / hit.Armor.Value;
}
else if (testShell.Caliber >= hit.Armor.Value * 2.0 && testShell.ShellType.HasNormalizationEffect())
{
is3X = false;
is2X = testShell.ShellType.HasNormalizationEffect();
thisNomarlizationAngle *= 1.4 * testShell.Caliber / hit.Armor.Value;
}
if (mayRicochet && thisImpactAngle > testShell.ShellType.RicochetAngle())
{
penetrationState = PenetrationState.Richochet;
break;
}
if (isFirstHit && testShell.ShellType.HasNormalizationEffect())
{
if (thisNomarlizationAngle > thisImpactAngle)
{
thisNomarlizationAngle = thisImpactAngle;
}
thisImpactAngle -= thisNomarlizationAngle;
nomarlizationAngle = thisNomarlizationAngle;
}
if (!heatExploded)
{
equivalentThickness += hit.Armor.Value / Math.Cos(DxUtils.ConvertDegreesToRadians(thisImpactAngle));
}
else
{
var distance = (hit.Distance - heatExplodedDistance);
var attenuation = 1 - distance * 0.5;
if (attenuation < 0)
{
penetrationState = PenetrationState.Unpenetratable;
break;
}
equivalentThickness += hit.Armor.Value / attenuation / Math.Cos(DxUtils.ConvertDegreesToRadians(thisImpactAngle));
}
}
else
{
if (!heatExploded)
{
equivalentThickness += hit.Armor.Value;
}
else
{
var distance = (hit.Distance - heatExplodedDistance);
var attenuation = 1 - distance * 0.5;
if (attenuation < 0)
{
penetrationState = PenetrationState.Unpenetratable;
break;
}
equivalentThickness += hit.Armor.Value / attenuation;
}
}
if (!hit.Armor.IsSpacingArmor)
{
if (equivalentThickness < 999.0)
{
penetrationState = PenetrationState.Penetratable;
}
else
{
penetrationState = PenetrationState.Unpenetratable;
}
break;
}
if (testShell.ShellType == ShellType.He || testShell.ShellType == ShellType.PremiumHe)
{
penetrationState = PenetrationState.Unpenetratable;
break;
}
if (testShell.ShellType == ShellType.Heat && isFirstHit)
{
heatExploded = true;
heatExplodedDistance = hit.Distance;
mayRicochet = false;
}
isFirstHit = false;
}
return(new ShootTestResult(penetrationState, equivalentThickness, impactAngle, nomarlizationAngle, is2X, is3X));
}
