Stuff

#include "spn_functions"
#include "inc_item_props"

//script cleans speed modifications based on equipped items

const int ITEM_PROPERTY_SPEED_INCREASE = 134;
const int ITEM_PROPERTY_SPEED_DECREASE = 135;

const string PLAYER_SPEED_INCREASE = "player_speed_increase";
const string PLAYER_SPEED_DECREASE = "player_speed_decrease";

void CleanSpeedProperties(object oPC);

void main()
{
   object oPC = GetEnteringObject();
   object oSkin = GetPCSkin(oPC);
   AssignCommand(oSkin, CleanSpeedProperties(oPC));
}

void CleanSpeedProperties(object oPC)
{
    //clean existing modification
    effect eTest = GetFirstEffect(oPC);
    object oSkin = GetPCSkin(oPC);
    while(GetIsEffectValid(eTest))
    {
        if(GetEffectCreator(eTest) == OBJECT_SELF &&
           GetEffectType(eTest) == (EFFECT_TYPE_MOVEMENT_SPEED_DECREASE ||
           EFFECT_TYPE_MOVEMENT_SPEED_INCREASE)
           )
            RemoveEffect(oPC, eTest);
        eTest = GetNextEffect(oPC);
    }
}