Here Chris I have the code for trade

package ploxage.scape.players.items;

import ploxage.scape.Engine;
import ploxage.scape.players.Player;
import ploxage.scape.io.*;

public class PlayerTrade {

public void declinePlayer(Player p){
if(p == null || !p.online){
return;
}
for(int i = 0; i < getTradeItemCount(p); i++){
Engine.playerItems.addItem(p,p.tradeItems[i],p.tradeItemsN[i]);
}
p.tradeItems = new int[28];
p.tradeItemsN = new int[28];
p.tradePlayer = 0;
p.tAccept[0] = false;
p.tAccept[1] = false;
p.frames.removeShownInterface(p);
}
public void acceptPlayer(Player p,Player plr){
if(p == null || !p.online){
return;
}
if(plr == null || !plr.online){
return;
}
for(int i = 0; i < getTradeItemCount(plr); i++){
Engine.playerItems.addItem(p,plr.tradeItems[i],plr.tradeItemsN[i]);
}
for(int i = 0; i < getTradeItemCount(p); i++){
Engine.playerItems.addItem(plr,p.tradeItems[i],p.tradeItemsN[i]);
}
p.tradeItems = new int[28];
p.tradeItemsN = new int[28];
p.tradePlayer = 0;
p.tAccept[0] = false;
p.tAccept[1] = false;
p.frames.removeShownInterface(p);
plr.tradeItems = new int[28];
plr.tradeItemsN = new int[28];
plr.tradePlayer = 0;
plr.tAccept[0] = false;
plr.tAccept[1] = false;
plr.frames.removeShownInterface(plr);
}
public void secondScreen(Player p,Player plr){
if(p == null || !p.online){
return;
}
if(plr == null || !plr.online){
return;
}
p.frames.showInterface(p, 334);
http://p.frames.setInventory(p, 16);
p.frames.setInventory(p, 336);
plr.frames.showInterface(plr, 334);
http://plr.frames.setInventory(plr, 16);
p.frames.setInventory(p, 336);
plr.tAccept[0] = true;
p.tAccept[0] = true;
//add string here for items
}
//Sub id's 30 and 31 are your offer and 32 and 33 is Traders offer
public void firstScreen(Player p,Player plr){
if(p == null || !p.online){
return;
}
if(plr == null || !plr.online){
return;
}
p.frames.showInterface(p, 335);
http://p.frames.setInventory(p, 333);
p.frames.setInventory(p, 336);
plr.frames.showInterface(plr, 335);
p.frames.setInventory(p, 336);
http://plr.frames.setInventory(plr, 333);
refreshScreen(p,plr);
refreshScreen(plr,p);
}
public void refreshScreen(Player p,Player plr){
if(p == null || !p.online){
return;
}
if(plr == null || !plr.online){
return;
}
http://p.frames.setItems(p, 335, 30, 28, p.items, p.itemsN);// my items my side
http://plr.frames.setItems(plr, 335, 30, 28, plr.tradeItems, plr.tradeItemsN);//his items his side
http://p.frames.setItems(p, 335, 32, 28, plr.tradeItems, plr.tradeItemsN);//his items on my screen
http://plr.frames.setItems(plr, 335, 32, 28, p.items, p.itemsN);//my items on his screen

http://p.frames.setItems(p, 336, 0, 93, p.items, p.itemsN);
//frames here for refreshing first screen
}
public void declineTrade(Player p){
if(p == null || !p.online){
return;
}
declinePlayer(p);
Player plr = Engine.players[p.tradePlayer];
if(plr == null || !plr.online){
return;
}
declinePlayer(plr);
}
public void checkStage(Player p){
if(p == null || !p.online){
return;
}
Player plr = Engine.players[p.tradePlayer];
if(plr == null || !plr.online){
return;
}
if(plr.tradePlayer != p.playerId || p.tradePlayer != plr.playerId){
return;
}
if(plr.tAccept[1] && p.tAccept[1] && plr.tAccept[0] && p.tAccept[0]){
acceptPlayer(p,plr);
}//final trade screen accepted by both
else if(plr.tAccept[0] && p.tAccept[0]){
secondScreen(p,plr);
} else if(!plr.tAccept[0] && !p.tAccept[0]){
firstScreen(p,plr);
}
}
public void tradeItem(Player p,int itemId, int amount){
if(p== null || !p.online){
return;
}
Player plr = Engine.players[p.tradePlayer];
if(plr == null || !plr.online){
return;
}
if(p.tradePlayer != plr.playerId || plr.tradePlayer != p.playerId){
return;
}
if(!Engine.playerItems.haveItem(p,itemId,amount)){
amount = Engine.playerItems.invItemCount(p,itemId);
}
if(getTradeItemCount(p) < 28){
if(Engine.items.itemLists[itemId].itemStackable || Engine.items.itemLists[itemId].itemIsNote){
if(Engine.playerItems.deleteItem(p,itemId,amount)) {
int freeSlot = getFreeSlots(p);
if(freeSlot < 0){
return;
}
p.tradeItems[freeSlot] = itemId;
p.tradeItemsN[freeSlot] += amount;
}
} else {
if(Engine.playerItems.deleteItem(p,itemId,amount)) {
for(int i = 0; i < amount; i++){
int freeSlot = getFreeSlots(p);
if(freeSlot < 0){
return;
}
p.tradeItems[freeSlot] = itemId;
p.tradeItemsN[freeSlot] = 1;
}
}
}
p.tAccept[0] = false;
plr.tAccept[0] = false;
refreshScreen(p,plr);
//add screen refresh frames here
}
}
public void removeItem(Player p,int itemId, int amount){
if(amount <= 0 || amount > 999999999){
return;
}
if(p == null || !p.online){
return;
}
Player plr = Engine.players[p.tradePlayer];
if(plr == null || !plr.online){
return;
}
if(p.tradePlayer != plr.playerId || plr.tradePlayer != p.playerId){
return;
}
int itemSlot = getTradeItemslot(p,itemId);
if(p.tradeItemsN[itemSlot] > 0){
//this is for noted items etc
//int itemSlot = getTradeItemslot(p,itemId);
if(itemSlot < 0){
return;
}
if(p.tradeItemsN[itemSlot] > amount){
amount = p.tradeItemsN[itemSlot];
Engine.playerItems.addItem(p,itemId,amount);
p.tradeItems[itemSlot] = -1;
p.tradeItemsN[itemSlot] = -1;
} else if(amount < p.tradeItemsN[itemSlot]){
Engine.playerItems.addItem(p,itemId,amount);
p.tradeItemsN[itemSlot] -= amount;
}
} else {
for(int i = 0; i < amount; i++){
int itemSlot2 = getTradeItemslot(p,itemId);
if(itemSlot2 < 0){
return;
}
Engine.playerItems.addItem(p,itemId,1);
p.tradeItems[itemSlot2] = -1;
p.tradeItemsN[itemSlot2] = -1;
}
}
p.tAccept[0] = false;
plr.tAccept[0] = false;
refreshScreen(p,plr);
//add screen refresh frames here
}

public int getTradeItemslot(Player p, int itemId) {
for (int i = 0; i < 28; i++) {
if (p.tradeItems[i] == itemId) {
return i;
}
}
return -1;
}
public int getTradeItemCount(Player p) {
int count = 0;
for (int i = 0; i < 28; i++) {
if (p.tradeItems[i] > 0) {
count++;
}
}
return count;
}

public int getFreeSlots(Player p) {
for (int i = 0; i < 28; i++) {
if (p.tradeItems[i] == -1) {
return i;
}
}
return -1;
}
}

p.frames.setPlayerOption(p, "Trade", 2);

p.frames.setPlayerOption(p, "Trade", 3);