56 lines
1.6 KiB
Plaintext
56 lines
1.6 KiB
Plaintext
@lazyglobal off.
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// Returns the throttle value you should use to achieve the
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// target TWR. If TWR can't be achieved, returns 1.0. (full throttle)
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function ThrottleToTWR {
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parameter twr is 1.5.
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local m is SHIP:MASS.
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local g is 9.81.
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if HAS_GRAV_SENSOR = true {
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set g to SHIP:SENSORS:GRAV:MAG.
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}
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return min((twr*m*g)/SHIP:AVAILABLETHRUST, 1.0).
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}
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// Calculates the ship's current TWR.
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function TWR {
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local m is ship:mass.
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local g is 9.81. // fallback to this approximation that doesn't deal with
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// altitude change.
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if HAS_GRAV_SENSOR = true {
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set g to SHIP:SENSORS:GRAV:MAG.
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}
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local t is THROTTLE * SHIP:AVAILABLETHRUST.
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return t/(m*g).
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}
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// Check for various sensors and set appropriate global constants.
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// Currently only checks for grav sensor, as that's the only one used by this library.
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global HAS_GRAV_SENSOR is false.
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function SensorCheck {
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local SensorList is 0.
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list SENSORS in SensorList.
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for s in SensorList {
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if s:type = "grav" {
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print "Gravometric sensor detected".
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set HAS_GRAV_SENSOR to true.
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return.
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}
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}
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set HAS_GRAV_SENSOR to false.
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}
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// adapted from https://github.com/sporadisk/KSP-KOS-scripts/blob/master/modules/GravityTurn.ks
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// todo: I don't think I actually like this code...
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function GravityTurn {
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parameter TargetDirection is 90.
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parameter TargetApoapsis is 80000.
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parameter Factor is 1.
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local remFactor is (2 / Factor).
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local remHeight is (SHIP:APOAPSIS/TargetApoapsis).
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local angle is (90 * (1 - (remHeight ^ remFactor))).
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return heading(TargetDirection, angle, 90).
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}
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