ch ch ch ch changes! big ol overhaul:

- Hidpi support
- Display & edit both sticks individually
- Clearer distinction between raw & filtered position
- Param editing & preview for digital
- Digital has an angle parameter
- Touched up CMakeLists.txt
- gitignore

maths.h

@@ -1,5 +1,15 @@
-#ifndef VECTOR_H
-#define VECTOR_H
+#ifndef MATHS_H
+#define MATHS_H
+
+#include <math.h>
+
+#define PI  3.141592653589793238462643383279502884L
+#define TAU 6.283185307179586476925286766559005768L
+
+#define MAX(LHS, RHS) ((LHS > RHS) ? (LHS) : (RHS))
+#define MIN(LHS, RHS) ((LHS < RHS) ? (LHS) : (RHS))
+#define CLAMP(X, A, B) (MIN(B, MAX(A, X)))
+#define SATURATE(X) (CLAMP(X, 0, 1))
 
 typedef double vec_t;
 typedef struct {vec_t x, y;} vector;
@@ -14,4 +24,14 @@ static inline vector VecScale(vector v, vec_t x)
 	return (vector){v.x * x, v.y * x};
 }
 
-#endif//VECTOR_H
+static inline double pfmod(double x, double d)
+{
+	return fmod(fmod(x, d) + d, (d));
+}
+
+static inline double AccelCurve(double x, double y)
+{
+	return (x * (x + y)) / (1.0 + y);
+}
+
+#endif//MATHS_H