add to gui

engine/engine.cpp

@@ -1,4 +1,5 @@
 #include "engine.h"
+#include "iostream"
 
 void Engine::step(double dt, double load_torque_nm) {
     // TODO: replace with real combustion/friction torque model driven
@@ -17,6 +18,16 @@ double Engine::torque_nm() const {
     return m_torque_nm;
 }
 
+void Engine::set_throttle(double throttle) {
+    m_throttle = throttle;
+}
+
+double Engine::get_throttle() {
+    return m_throttle;
+}
+
 void Engine::reset() {
     m_rpm = 0;
+    m_oil_temp = 0;
+    m_coolant_capacity = 0;
 }

engine/engine.h

@@ -11,12 +11,24 @@ public:
     double rpm() const;
     double torque_nm() const; // net torque produced this step
 
+    void set_throttle(double throttle);
+    double get_throttle();
     void reset();
 
 private:
     double m_rpm = 0.0;
     double m_torque_nm = 0.0;
 
-    static constexpr double kIdleRpm = 900.0;
+    // Fluids
+    double m_oil_capacity = 0.0;
+    double m_coolant_capacity = 0.0;
+
+    double m_oil_temp = 0.0;
+    double m_coolant_temp = 0.0;
+
+    // User Input
+    double m_throttle = 0.0;
+
+    static constexpr double kIdleRpm = 1700.0;
     static constexpr double kCrankInertiaKgm2 = 0.15; // placeholder
 };