fix typos (#914)

Source/scrollrt.cpp

@@ -622,7 +622,7 @@ static void DrawItem(int x, int y, int sx, int sy, BOOL pre)
 }
 
 /**
- * @brief Check if and how a mosnter should be rendered
+ * @brief Check if and how a monster should be rendered
  * @param y dPiece coordinate
  * @param x dPiece coordinate
  * @param oy dPiece Y offset

SourceX/controls/plrctrls.cpp

@@ -187,7 +187,7 @@ bool CanTargetMonster(int mi)
 
 	const int mx = monst._mx;
 	const int my = monst._my;
-	if (!(dFlags[mx][my] & BFLAG_LIT)) // not visable
+	if (!(dFlags[mx][my] & BFLAG_LIT)) // not visible
 		return false;
 	if (dMonster[mx][my] == 0)
 		return false;

SourceX/storm/storm.cpp

@@ -771,7 +771,7 @@ BOOL SVidPlayContinue(void)
 
 	double now = SDL_GetTicks() * 1000;
 	if (now < SVidFrameEnd) {
-		SDL_Delay((SVidFrameEnd - now) / 1000); // wait with next frame if the system is to fast
+		SDL_Delay((SVidFrameEnd - now) / 1000); // wait with next frame if the system is too fast
 	}
 
 	return SVidLoadNextFrame();