// Copy-constructor
public ShiftVecReport(ShiftVecReport report)
{
this.target = report.target;
this.aimEfficiency = report.aimEfficiency;
this.aimingAccuracy = report.aimingAccuracy;
this.circularMissRadius = report.circularMissRadius;
this.indirectFireShift = report.indirectFireShift;
this.lightingShift = report.lightingShift;
this.shotSpeed = report.shotSpeed;
this.shotDist = report.shotDist;
this.isAiming = report.isAiming;
this.swayDegrees = report.swayDegrees;
this.spreadDegrees = report.spreadDegrees;
this.cover = report.cover;
}
/// <summary>
/// Fires a projectile using the new aiming system
/// </summary>
/// <returns>True for successful shot, false otherwise</returns>
protected override bool TryCastShot()
{
ShootLine shootLine;
if (!base.TryFindShootLineFromTo(this.caster.Position, this.currentTarget, out shootLine))
{
return(false);
}
if (this.projectilePropsCR.pelletCount < 1)
{
Log.Error(this.ownerEquipment.LabelBaseCap + " tried firing with pelletCount less than 1.");
return(false);
}
for (int i = 0; i < this.projectilePropsCR.pelletCount; i++)
{
Vector3 casterExactPosition = this.caster.DrawPos;
ProjectileCR projectile = (ProjectileCR)ThingMaker.MakeThing(projectileDef, null);
GenSpawn.Spawn(projectile, shootLine.Source);
float lengthHorizontalSquared = (this.currentTarget.Cell - this.caster.Position).LengthHorizontalSquared;
//New aiming algorithm
projectile.canFreeIntercept = true;
ShiftVecReport report = this.ShiftVecReportFor(this.currentTarget);
Vector3 targetVec3 = this.ShiftTarget(report);
projectile.shotAngle = this.shotAngle;
projectile.shotHeight = this.shotHeight;
projectile.shotSpeed = this.shotSpeed;
if (this.currentTarget.Thing != null)
{
projectile.Launch(this.caster, casterExactPosition, new TargetInfo(this.currentTarget.Thing), targetVec3, this.ownerEquipment);
}
else
{
projectile.Launch(this.caster, casterExactPosition, new TargetInfo(shootLine.Dest), targetVec3, this.ownerEquipment);
}
}
this.numShotsFired++;
return(true);
}
protected override bool TryCastShot()
{
ArtilleryMarker marker = ThingMaker.MakeThing(ThingDef.Named(ArtilleryMarker.MarkerDef)) as ArtilleryMarker;
ShiftVecReport report = ShiftVecReportFor(currentTarget);
marker.aimEfficiency = report.aimEfficiency;
marker.aimingAccuracy = report.aimingAccuracy;
marker.lightingShift = report.lightingShift;
marker.weatherShift = report.weatherShift;
GenSpawn.Spawn(marker, this.currentTarget.Cell, caster.Map);
// Check for something to attach marker to
if (this.currentTarget.HasThing)
{
CompAttachBase comp = this.currentTarget.Thing.TryGetComp <CompAttachBase>();
if (comp != null)
{
marker.AttachTo(this.currentTarget.Thing);
}
}
return(true);
}
/// <summary>
/// Shifts the original target position in accordance with target leading, range estimation and weather/lighting effects
/// </summary>
protected virtual Vector3 ShiftTarget(ShiftVecReport report)
{
// ----------------------------------- STEP 0: Actual location
Vector3 targetLoc = report.targetPawn != null?Vector3.Scale(report.targetPawn.DrawPos, new Vector3(1, 0, 1)) : report.target.Cell.ToVector3Shifted();
Vector3 sourceLoc = this.CasterPawn != null?Vector3.Scale(this.CasterPawn.DrawPos, new Vector3(1, 0, 1)) : this.caster.Position.ToVector3Shifted();
// ----------------------------------- STEP 1: Shift for visibility
Vector2 circularShiftVec = report.GetRandCircularVec();
Vector3 newTargetLoc = targetLoc;
newTargetLoc.x += circularShiftVec.x;
newTargetLoc.z += circularShiftVec.y;
// ----------------------------------- STEP 2: Estimated shot to hit location
// On first shot of burst do a range estimate
if (this.estimatedTargDist < 0)
{
this.estimatedTargDist = report.GetRandDist();
}
newTargetLoc = sourceLoc + (newTargetLoc - sourceLoc).normalized * this.estimatedTargDist;
// Lead a moving target
newTargetLoc += report.GetRandLeadVec();
// ----------------------------------- STEP 3: Recoil, Skewing, Skill checks, Cover calculations
Vector2 skewVec = new Vector2(0, 0);
skewVec += this.GetSwayVec();
skewVec += this.GetRecoilVec();
// Height difference calculations for ShotAngle
float heightDifference = 0;
float targetableHeight = 0;
// Projectiles with flyOverhead target the ground below the target and ignore cover
if (!projectileDef.projectile.flyOverhead)
{
targetableHeight = Utility.GetCollisionHeight(this.currentTarget.Thing);
if (report.cover != null)
{
targetableHeight += Utility.GetCollisionHeight(report.cover);
}
heightDifference += targetableHeight * 0.5f; //Optimal hit level is halfway
}
this.shotHeight = Utility.GetCollisionHeight(this.caster);
if (this.CasterPawn != null)
{
this.shotHeight *= shotHeightFactor;
}
heightDifference -= this.shotHeight;
skewVec += new Vector2(0, GetShotAngle(this.shotSpeed, (newTargetLoc - sourceLoc).magnitude, heightDifference) * (180 / (float)Math.PI));
// ----------------------------------- STEP 4: Mechanical variation
// Get shotvariation
Vector2 spreadVec = report.GetRandSpreadVec();
skewVec += spreadVec;
// Skewing - Applied after the leading calculations to not screw them up
float distanceTraveled = GetDistanceTraveled(this.shotSpeed, (float)(skewVec.y * (Math.PI / 180)), this.shotHeight);
newTargetLoc = sourceLoc + ((newTargetLoc - sourceLoc).normalized * distanceTraveled);
newTargetLoc = sourceLoc + (Quaternion.AngleAxis(skewVec.x, Vector3.up) * (newTargetLoc - sourceLoc));
this.shotAngle = (float)(skewVec.y * (Math.PI / 180));
return(newTargetLoc);
}
