Rough dynamic collision setup (#24)

* Rough collider shape setup

* d_a_obj_toD3_stone_figure OK

* Cleanup

* Cleanup 2

include/m/m_angle.h

@@ -2,6 +2,7 @@
 #define M_ANGLE_H
 
 #include <common.h>
+#include <nw4r/math/math_triangular.h>
 
 struct mAng {
     mAng() {}
@@ -12,6 +13,14 @@ struct mAng {
     }
     s32 step(s16 target, s32 steps, s16 max, s16 min);
 
+    inline f32 sin() const {
+        return nw4r::math::SinIdx(*this);
+    }
+
+    inline f32 cos() const {
+        return nw4r::math::CosIdx(*this);
+    }
+
     s16 mVal;
 };
 

include/m/m_vec.h

@@ -61,6 +61,11 @@ public:
         return (Vec *)&x;
     }
 
+    /// @brief Vec cast operator.
+    operator Vec() const {
+        return *(Vec *)&x;
+    }
+
     operator EGG::Vector3f *() {
         return (EGG::Vector3f *)&x;
     }