Use modified atrributes to calculate final skills

Calculating the final "Object knowledge" and "Projectile" skill values
used raw attribute values while all other skills used the modified
attributes.

This commit changes it so that all skills use the modified attribute
values.

Fixes bug #302

src/game/Player.cpp

@@ -664,10 +664,11 @@ float ARX_PLAYER_Get_Skill_Object_Knowledge(long type)
 	{
 		if (type == 0)
 			return (float)player.Skill_Object_Knowledge
-			       + ((player.Attribute_Mind * 3.f + player.Attribute_Dexterity + player.Attribute_Strength) * ( 1.0f / 2 ));
+			       + ((player.Attribute_Mind * 3.f + player.Attribute_Dexterity + player.Attribute_Strength) * 0.5f);
 
 		return (float)player.Skill_Object_Knowledge + player.Mod_Skill_Object_Knowledge
-		       + ((player.Attribute_Mind * 3.f + player.Attribute_Dexterity + player.Attribute_Strength) * ( 1.0f / 2 ));
+		       + ((player.Full_Attribute_Mind * 3.f + player.Full_Attribute_Dexterity
+		           + player.Full_Attribute_Strength) * 0.5f);
 	}
 
 	if (type == 0)
@@ -717,7 +718,7 @@ float ARX_PLAYER_Get_Skill_Projectile(long type)
 			       + player.Attribute_Dexterity * 2.f + player.Attribute_Strength;
 
 		return (float)player.Skill_Projectile + player.Mod_Skill_Projectile
-		       + player.Attribute_Dexterity * 2.f + player.Attribute_Strength;
+		       + player.Full_Attribute_Dexterity * 2.f + player.Full_Attribute_Strength;
 	}
 
 	if (type == 0)