New Parabola trajectory

[CrimRecya]

• As the name says, this is a completely reset Arcing with different enhanced functions. Without doubt, It supported linkage with Trajectory=Disperse.
  • Trajectory.Parabola.DetonationDistance controls the maximum distance in cells from intended target (checked at start of each game frame, before the projectile moves) at which the projectile will be forced to detonate. Set to 0 to disable forced detonation.
  • Trajectory.Parabola.TargetSnapDistance controls the maximum distance in cells from intended target the projectile can be at moment of detonation to make the projectile 'snap' on the intended target. Set to 0 to disable snapping.
  • Trajectory.Parabola.OpenFireMode controls how should the projectile be launched. This has the following 6 modes.
  • Speed - Automatic calculation mode with fixed horizontal velocity, using Trajectory.Speed and target coordinates as calculation conditions, i.e. the flight time of the projectile is permanently fixed.
  • Height - Automatic calculation mode with fixed maximum height, useing Trajectory.Parabola.ThrowHeight and target coordinates as calculation conditions, i.e. the detonation time of the projectile is relatively fixed.
  • Angle - Automatic calculation mode with fixed fire angle, useing Trajectory.Parabola.LaunchAngle and target coordinates as calculation conditions. In this mode, the performance consumption is high, and may have no solution. It is not recommended to enable SubjectToCliffs or enable AA with a smaller MinimumRange when using this mode.
  • SpeedAndHeight - Fixed horizontal velocity and maximum height mode, using Trajectory.Speed and Trajectory.Parabola.ThrowHeight as calculation conditions, i.e. the trajectory will only undergo altitude changes with the height of the target.
  • HeightAndAngle - Fixed maximum height and fire angle mode, using Trajectory.Parabola.ThrowHeight and Trajectory.Parabola.LaunchAngle as calculation conditions, i.e. the trajectory will change horizontally with the height of the target.
  • SpeedAndAngle - Fixed horizontal velocity and fire angle mode, using Trajectory.Speed and Trajectory.Parabola.LaunchAngle as calculation conditions, i.e. the trajectory will be permanently fixed.
  • Trajectory.Parabola.ThrowHeight controls the maximum height of the projectile and is only used for modes 1, 3, or 4. The specific height will be determined by taking the larger of the launch height and the target height then increasing this value. Non positive numbers are not supported.
  • Trajectory.Parabola.LaunchAngle controls the fire angle of the projectile and is only used for modes 2, 4, or 5. Only supports -90.0 ~ 90.0 (Cannot use boundary values) in Mode 2 or 5, and 0.0 ~ 90.0 (Cannot use boundary values) in Mode 4.
  • Trajectory.Parabola.LeadTimeCalculate controls whether the projectile need to calculate the lead time of the target when firing. Note that this will not affect the facing of the turret.
  • Trajectory.Parabola.DetonationAngle controls when the angle between the projectile in the current velocity direction and the horizontal plane is less than this value, it will detonate prematurely. Taking effect when the value is at -90.0 ~ 90.0 (Cannot use boundary values).
  • Trajectory.Parabola.DetonationHeight controls when the projectile is in a descending state and below the height of the launch position plus this value, it will detonate prematurely. Taking effect when it is set to non negative value.
  • Trajectory.Parabola.BounceTimes controls how many times can it bounce back when the projectile hits the ground or cliff. Be aware that excessive projectile speed may cause abnormal operation. And Trajectory.Parabola.DetonationDistance do not conflict with this and will take effect simultaneously. So if you want to explode the bullet only after the times of bounces is exhausted, you should set Trajectory.Parabola.DetonationDistance to a non positive value.
  • Trajectory.Parabola.BounceOnWater controls whether it can bounce on the water surface.
  • Trajectory.Parabola.BounceDetonate controls whether it detonates the warhead once extra during each bounce.
  • Trajectory.Parabola.BounceAttenuation controls the attenuation coefficient of projectile bounce damage, that is, how many times the next damage after each bounce is the damage just caused. This will also affect the damage of the final detonation.
  • Trajectory.Parabola.BounceCoefficient controls the attenuation coefficient of projectile bounce elasticity, that is, how many times the speed after each bounce is the speed before bouncing.
  • Trajectory.Parabola.OffsetCoord controls the offsets of the target. Projectile will aim at this position to attack. It also supports Inaccurate=yes and Trajectory.Parabola.LeadTimeCalculate=true on this basis.
  • Trajectory.Parabola.RotateCoord controls whether to rotate the projectile's firing direction within the angle bisector of Trajectory.Parabola.OffsetCoord according to the weapon's Burst. Set to 0 to disable this function.
  • Trajectory.Parabola.MirrorCoord controls whether Trajectory.Parabola.OffsetCoord need to mirror the lateral value to adapt to the current burst index. At the same time, the rotation direction calculated by Trajectory.Parabola.RotateCoord will also be reversed, and the rotation angle between each adjacent projectile on each side will not change as a result.
  • Trajectory.Parabola.UseDisperseBurst controls whether the calculation of Trajectory.Parabola.RotateCoord is based on its superior's Trajectory.Disperse.WeaponBurst of the dispersed trajectory, rather than Burst of the weapon. If this value is not appropriate, it will result in unsatisfactory visual displays.
  • Trajectory.Parabola.AxisOfRotation controls the rotation axis when calculating Trajectory.Parabola.RotateCoord. The axis will rotates with the unit orientation or the vector that from target position to the source position.

In rulesmd.ini:

Trajectory=Parabola                             ; Trajectory type
Trajectory.Parabola.DetonationDistance=0.4      ; floating point value
Trajectory.Parabola.TargetSnapDistance=0.5      ; floating point value
Trajectory.Parabola.OpenFireMode=speed          ; ParabolaFireMode value enumeration (speed|height|angle|speedandheight|heightandangle|speedandangle)
Trajectory.Parabola.ThrowHeight=600             ; integer
Trajectory.Parabola.LaunchAngle=30              ; floating point value
Trajectory.Parabola.LeadTimeCalculate=no        ; boolean
Trajectory.Parabola.DetonationAngle=-90.0       ; floating point value
Trajectory.Parabola.DetonationHeight=-1         ; integer
Trajectory.Parabola.BounceTimes=0               ; integer
Trajectory.Parabola.BounceOnWater=no            ; boolean
Trajectory.Parabola.BounceDetonate=no           ; boolean
Trajectory.Parabola.BounceAttenuation=0.8       ; floating point value
Trajectory.Parabola.BounceCoefficient=0.8       ; floating point value
Trajectory.Parabola.OffsetCoord=0,0,0           ; integer - Forward,Lateral,Height
Trajectory.Parabola.RotateCoord=0               ; floating point value
Trajectory.Parabola.MirrorCoord=yes             ; boolean
Trajectory.Parabola.UseDisperseBurst=no         ; boolean
Trajectory.Parabola.AxisOfRotation=0,0,1        ; integer - Forward,Lateral,Height

- Compared to vanilla `Arcing`, this can also be used for aircrafts and airburst weapon.
- Certainly, `Gravity` can also affect the trajectory.

What is Trajectory=Disperse -> #1295

Trajectory=Disperse + Trajectory=Parabola

[github-actions[bot]]

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[secsome]

Resolve the conflict and we can merge it