all of the changes

include/FluidSim/Desktop/PedalControl.hpp

@@ -0,0 +1,15 @@
+#pragma once
+#include <algorithm>
+namespace fluidsim::port::desktop {
+// Keyboard input travel is separate from the ECU actuator response.
+class PedalControl {
+public:
+    float value() const {return value_;}
+    void set(float value) {value_=std::clamp(value,0.f,1.f);}
+    void advance(float dt,bool raise,bool lower) {
+        if(dt>0) set(value_+(raise && !lower?2.f:-2.f)*dt);
+    }
+private:
+    float value_{};
+};
+}