#ifndef __INC_METIN_II_GAME_VECTOR_H__ #define __INC_METIN_II_GAME_VECTOR_H__ typedef struct SVector { float x; float y; float z; } VECTOR; extern void Normalize(VECTOR * pV1, VECTOR * pV2); extern float GetDegreeFromPosition(float x, float y); extern float GetDegreeFromPositionXY(int sx, int sy, int ex, int ey); extern void GetDeltaByDegree(float fDegree, float fDistance, float *x, float *y); extern float GetDegreeDelta(float iDegree, float iDegree2); #endif