//RPG_DropFunctions.zlib v0.4 for RPG.zh v0.95

bool NeedsHealth(){
	if ( Link->HP < Link->MaxHP ) {
		return true;
	}
	else {
		return false;
	}
}

bool NeedsMagic(){
	if ( Link->HP < Link->MaxMP && Game->MCounter[CR_MAGIC] > 0 ) {
		return true;
	}
	else {
		return false;
	}
}

bool NeedsBombs(){
	if ( Game->Counter[CR_BOMBS] < Game->MCounter[CR_BOMBS] && Game->MCounter[CR_BOMBS] > 0 ) return true;
}

bool NeedsSuperBombs(){
	if ( Game->Counter[CR_SBOMBS] < Game->MCounter[CR_SBOMBS] && Game->MCounter[CR_SBOMBS] > 0 ) {
		return true;
	}
	else {
		return false;
	}
}

bool NeedsRupees(){
	if ( Game->Counter[CR_RUPEES] < Game->Counter[CR_RUPEES] && Game->MCounter[CR_RUPEES] > 0 ) {
		return true;
	}
	else {
		return false;
	}
}

bool NeedsArrows(){
	if ( Game->Counter[CR_ARROWS] < Game->Counter[CR_ARROWS] && Game->MCounter[CR_ARROWS] > 0 ) {
		return true;
	}
	else {
		return false;
	}
}

bool NeedsDrop(){
	if ( NeedsHealth() || NeedsArrows() || NeedsMagic() || NeedsBombs() || NeedsRupees() ) {
		return true;
	}
	else {
		return false;
	}	
}

bool MayDrop(bool arr, int arr2){
	for ( int i = 0; i < SizeOfArray(arr2); i++) {
		if ( arr[i] == true ) {
			return true;
		}
		else if ( i == SizeOfArray(arr2) ) return false;
	}
}

void DropEnforcer(int chanceOfGoodDrop){ //Original function by Orithan
	for(int i = 1; i <= Screen->NumItems(); i ++){ //Load all items on the screen
		item itm = Screen->LoadItem(i); //Load item i
		int itmx = itm->X;
		int itmy = itm->Y;
		itemdata itmd = GetItemData(itm); //Get the itemdata for item i
		if(((itmd->Family == IC_ARROWAMMO && !NeedsArrows() || itmd->Family == IC_ARROWAMMO && !NeedsArrows() ) && (itm->Pickup | IP_TIMEOUT) ) //Check for wherever Link can hold Arrows and wherever he is full
		|| ((itmd->Family == IC_BOMBAMMO && !NeedsBombs() || itmd->Family == IC_BOMBAMMO && !NeedsBombs() ) && (itm->Pickup | IP_TIMEOUT) ) //Ditto for Bombs
		|| ((itmd->Family == IC_RUPEE && !NeedsRupees() || itmd->Family == IC_RUPEE && !NeedsRupees() ) && (itm->Pickup | IP_TIMEOUT) ) //Ditto for Rupees
		|| ((itmd->Family == IC_SBOMB && !NeedsSuperBombs() || itmd->Family == IC_SBOMB && !NeedsSuperBombs() ) && (itm->Pickup | IP_TIMEOUT) ) //Ditto for Super Bombs
		|| ((itmd->Family == IC_MAGIC && !NeedsMagic() || itmd->Family == IC_MAGIC && !NeedsMagic() ) && (itm->Pickup | IP_TIMEOUT) ) //Check for wherever Link has Magic containers and wherever he is at full magic
		|| ((itmd->Family == IC_HEART && !NeedsHealth() ) && (itm->Pickup | IP_TIMEOUT) )){ //Check for Link being at full health
			Remove(itm); //Remove the item from the screen.
			if ( NeedsDrop() ){
				ReplaceDropWithNeeded(chanceOfGoodDrop, itmx, itmy);
			}
		}
	}
}

void ReplaceDropWithNeeded(int chance, int x, int y){
	int value;
	bool isGoodDrop = false;
	int goodDropChance = Rand(1,100);
	int drops[5]={I_RUPEE1, I_ARROWAMMO1, I_MAGICJAR1, I_HEART, I_BOMBAMMO1};
	int goodDrops[5]={I_RUPEE5, I_ARROWAMMO5, I_MAGICJAR2, I_FAIRY,  I_SBOMB};
	if ( goodDropChance <= chance ) {
		isGoodDrop = true;
	}
	bool MayDropThese[6] = {false,false,false,false,false,false};
	int CanDropThese[6] = {0,0,0,0,0,0};
	bool dropping = true;
	if ( NeedsRupees() ) {
		MayDropThese[0] = true;
		CanDropThese[0] = 1;
	}
	if ( NeedsArrows() ) {
		MayDropThese[1] = true;
		CanDropThese[1] = 1;
	}
	if ( NeedsMagic() ) {
		MayDropThese[2] = true;
		CanDropThese[2] = 1;
	}
	if ( NeedsHealth() ) {
		MayDropThese[3] = true;
		CanDropThese[3] = 1;
	}
	if ( NeedsBombs() ) {
		MayDropThese[4] = true;
		CanDropThese[4] = 1;
	}
	
	if ( MayDrop(MayDropThese,CanDropThese) ) {
		if ( !isGoodDrop ) {
			for ( int i = 0; i < 5; i++) {
				do {
					value = Rand(4);
				}
				while(MayDropThese[i] != true);
			}
			CreateTimeoutItem(drops[value], x, y);
		}
		if ( isGoodDrop ) {
			for ( int i = 0; i < 5; i++) {
				do {
					value = Rand(4);
				}
				while(MayDropThese[i] != false);
			}
			CreateTimeoutItem(goodDrops[value], x, y);
		}
	}
}