fix typos (#2291)

Source/engine.cpp

@@ -2627,7 +2627,7 @@ void mem_free_dbg(void *p)
 }
 
 /**
- * @brief Load a file in to a buffer
+ * @brief Load a file into a buffer
  * @param pszName Path of file
  * @param pdwFileLen Will be set to file size if non-NULL
  * @return Buffer with content of file
@@ -2656,7 +2656,7 @@ BYTE *LoadFileInMem(const char *pszName, DWORD *pdwFileLen)
 }
 
 /**
- * @brief Load a file in to the given buffer
+ * @brief Load a file into the given buffer
  * @param pszName Path of file
  * @param p Target buffer
  * @return Size of file

Source/pack.cpp

@@ -135,12 +135,12 @@ void PackPlayer(PkPlayerStruct *pPack, int pnum, BOOL manashield)
 }
 
 /**
- * Expand a PkItemStruct in to a ItemStruct
+ * Expand a PkItemStruct into an ItemStruct
  *
  * Note: last slot of item[MAXITEMS+1] used as temporary buffer
  * find real name reference below, possibly [sizeof(item[])/sizeof(ItemStruct)]
  * @param is The source packed item
- * @param id The distination item
+ * @param id The destination item
  */
 #ifndef HELLFIRE
 static

structs.h

@@ -582,7 +582,7 @@ typedef struct MonsterStruct { // note: missing field _mAFNum
 	int _mxvel;             // Pixel X-velocity while walking. Applied to _mxoff
 	int _myvel;             // Pixel Y-velocity while walking. Applied to _myoff
 	int _mdir;              // Direction faced by monster (direction enum)
-	int _menemy;            // The current target of the mosnter. An index in to either the plr or monster array based on the _meflag value.
+	int _menemy;            // The current target of the monster. An index into either the plr or monster array based on the _meflag value.
 	unsigned char _menemyx; // X-coordinate of enemy (usually correspond's to the enemy's futx value)
 	unsigned char _menemyy; // Y-coordinate of enemy (usually correspond's to the enemy's futy value)
 	short falign_52;        // probably _mAFNum (unused)