Merge pull request #267 from robojumper/degree

Degree WIP

include/c/c_math.h

@@ -8,6 +8,8 @@
 
 namespace cM {
 s16 atan2s(f32, f32);
+f32 atan2f(f32, f32);
+
 void initRnd(s32);
 f32 rnd();
 int rndInt(int max);

include/m/m_angle.h

@@ -98,8 +98,12 @@ struct mAng {
         return rad * sRadToAng;
     }
 
-    static f32 ang2deg_c(f32 rad) {
-        return rad * sAngToDeg;
+    static f32 ang2deg_c(f32 ang) {
+        return ang * sAngToDeg;
+    }
+
+    static f32 rad2deg_c(f32 rad) {
+        return rad * sRadToDeg;
     }
 
     static f32 rad2deg(f32 rad) {
@@ -124,6 +128,10 @@ struct mAng {
         return rad * (65536.0f / (2.f * M_PI));
     }
 
+    static f32 deg2rad_c(f32 deg) {
+        return deg * sDegToRad;
+    }
+
     s16 mVal;
 
 private:

include/toBeSorted/deg_angle_util.h

@@ -0,0 +1,65 @@
+#ifndef TOBESORTED_DEG_ANGLE_UTIL_H
+#define TOBESORTED_DEG_ANGLE_UTIL_H
+
+#include "common.h"
+#include "m/m_vec.h"
+
+struct dDegree {
+public:
+    /** Wraps a degree angle so that value is within [-180.0f; 180.0f] */
+    static f32 adjust(f32 value);
+    /** Canonicalizes a degree angle so that value is within [-180.0f; 180.0f) */
+    static f32 canonicalize(f32 value);
+
+    f32 rotate180F() const;
+    void rotate180();
+    f32 abs() const;
+
+    f32 sin() const;
+    f32 cos() const;
+    f32 tan() const;
+    f32 tan2() const;
+    f32 toRad() const;
+    s16 toIdx(); // can't be const...
+
+    void Set(f32 v) {
+        value = adjust(v);
+    }
+
+    f32 operator-(const dDegree &other) const {
+        return value - other.value;
+    }
+
+    f32 operator+(const dDegree &other) const {
+        return value + other.value;
+    }
+
+    dDegree() : value(0.0f) {}
+    dDegree(f32 value) : value(adjust(value)) {}
+    dDegree(const dDegree &other) : value(other.value) {}
+
+    /* 0x0 */ f32 value;
+};
+
+struct dPolar {
+public:
+    dPolar(f32 r, f32 u, f32 v);
+    dPolar(const mVec3_c &v);
+
+    dPolar *canonicalize();
+
+    void Set(f32 r, f32 u, f32 v);
+
+    void setCartesian(const mVec3_c &v);
+    mVec3_c toCartesian() const;
+
+    f32 SetR(f32 r);
+    f32 SetU(f32 u);
+    f32 SetV(f32 v);
+
+    /* 0x0 */ f32 R;
+    /* 0x4 */ dDegree U;
+    /* 0x8 */ dDegree V;
+};
+
+#endif