Continuing rewriting engine

koptilnya/engine_remastered/clutch.txt

@@ -0,0 +1,57 @@
+-- @include ./wire_component.txt
+-- @include ./enums/gearbox.txt
+require('./wire_component.txt')
+local gearboxTypes = require('./enums/gearbox.txt')
+
+Clutch = class('Clutch', WireComponent)
+
+function Clutch:initialize(config)
+    self.stiffness = config.Stiffness
+    self.damping = config.Damping
+    self.maxTorque = config.MaxTorque
+
+    self.press = 0
+    self.slip = 0
+    self.targetTorque = 0
+    self.torque = 0
+
+    self._engine = nil
+    self._gearbox = nil
+end
+
+function Clutch:linkEngine(eng)
+    self._engine = eng
+end
+
+function Clutch:linkGearbox(gbox)
+    self._gearbox = gbox
+end
+
+function Clutch:getInputs()
+    return {}
+end
+
+function Clutch:getOutputs()
+    return {
+        ClutchTorque = 'number',
+        ClutchSlip = 'number'
+    }
+end
+
+function Clutch:update()
+    if self._gearbox.type == gearboxTypes.MANUAL then
+        self.press = wire.ports.Clutch
+    end
+
+    local someConversionCoeff = 0.10472
+
+    local engRPM = self._engine and self._engine.rpm or 0
+    local gboxRPM = self._gearbox and self._gearbox.rpm or 0
+    local gboxRatio = self._gearbox and self._gearbox.ratio or 0
+    local gboxRatioNotZero = gboxRatio ~= 0 and 1 or 0
+
+    self.slip = ((engRPM - gboxRPM) * someConversionCoeff) * gboxRatioNotZero / 2
+    self.targetTorque = math.clamp(self.slip * self.stiffness * (1 - self.press), -self.maxTorque, self.maxTorque)
+
+    self.torque = math.lerp(self.damping, self.torque, self.targetTorque)
+end