91 lines
2.6 KiB
Plaintext
91 lines
2.6 KiB
Plaintext
-- @include ./wire_component.txt
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-- @include /koptilnya/libs/constants.txt
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require('./wire_component.txt')
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require('/koptilnya/libs/constants.txt')
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Engine = class('Engine', WireComponent)
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function Engine:initialize(config, clutch)
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self.idleRPM = config.IdleRPM
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self.maxRPM = config.MaxRPM
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self.flywheelMass = config.FlywheelMass
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self.flywheelRadius = config.FlywheelRadius
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self.startFriction = config.StartFriction
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self.frictionCoeff = config.FrictionCoeff
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self.torque = 0
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self.rpmFrac = 0
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self.rpm = self.idleRPM
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self.friction = 0
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self.masterThrottle = 0
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self.limiterDuration = config.LimiterDuration
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self.torqueMap = config.TorqueMap or {}
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self._fwInertia = self.flywheelMass * self.flywheelRadius ^ 2 / 2
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self._limiterTime = 0
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self.clutch = clutch
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clutch:linkEngine(self)
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end
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function Engine:getInputs()
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return {
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Throttle = 'number'
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}
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end
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function Engine:getOutputs()
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return {
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Engine_RPM = 'number',
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Engine_Torque = 'number',
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Engine_MasterThrottle = 'number'
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}
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end
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function Engine:updateOutputs()
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wire.ports.Engine_RPM = self.rpm
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wire.ports.Engine_Torque = self.torque
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wire.ports.Engine_MasterThrottle = self.masterThrottle
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end
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function Engine:getThrottle()
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return wire.ports.Throttle
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end
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function Engine:update()
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local throttle = self:getThrottle()
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self.rpmFrac = math.clamp((self.rpm - self.idleRPM) / (self.maxRPM - self.idleRPM), 0, 1)
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self.friction = self.startFriction - self.rpm * self.frictionCoeff
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local tqIdx = math.clamp(math.floor(self.rpmFrac * #self.torqueMap), 1, #self.torqueMap)
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local maxInitialTorque = self.torqueMap[tqIdx] - self.friction
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local idleFadeStart = math.clamp(math.remap(self.rpm, self.idleRPM - 300, self.idleRPM, 1, 0), 0, 1)
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local idleFadeEnd = math.clamp(math.remap(self.rpm, self.idleRPM, self.idleRPM + 600, 1, 0), 0, 1)
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local additionalEnergySupply = idleFadeEnd * (-self.friction / maxInitialTorque) + idleFadeStart
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if self.rpm > self.maxRPM then
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throttle = 0
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self._limiterTime = timer.systime()
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else
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throttle = timer.systime() >= self._limiterTime + self.limiterDuration and throttle or 0
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end
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self.masterThrottle = math.clamp(additionalEnergySupply + throttle, 0, 1)
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local realInitialTorque = maxInitialTorque * self.masterThrottle
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local loadTorque = self.clutch and self.clutch.torque or 0
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self.torque = realInitialTorque + self.friction
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self.rpm = self.rpm + (self.torque - loadTorque) / self._fwInertia * RAD_TO_RPM * TICK_INTERVAL
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self.rpm = math.max(self.rpm, 0)
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end
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