Minecraft Code Connection - Currency

// MAKE SURE TO SAVE YOUR CURRENCY BY OVERWRITING THE CURRENCY VARIABLE BELOW THIS LINE BEFORE YOU EXIT MINECRAFT
let currency = 0
let selloff = 0.5 // selling an item is worth this value times the buy value of the item
let boom = 100 // price boom, all prices and value of currency will be mutiplied by this number
let gamble = true // set to true to enable to ability to gamble your earnings (INCREDIBLY UNBALANCED)

player.onChat(";bal", function() {
    chat("§aYou have: §l$"+currency.toString(),false)
})

let marketplace_items = [
    [IRON_INGOT,"iron",1,"iron_ingot"],
    [DIAMOND,"diamond",13,"diamond"],
    [GOLD_INGOT,"gold",2,"gold_ingot"],
    [LOG_OAK,"log",0.05,"log"],
    [STICK,"stick",0.0065,"stick"],
    [PLANKS_OAK,"planks",0.015,"planks"],
    [LAPIS_LAZULI_BLOCK,"lapisblock",0.5*9,"lapis_block"],
    [DIRT,"dirt",0.01,"dirt"],
    [GRASS,"grass",0.025,"grass"],
    [COBBLESTONE,"cobblestone",0.015,"cobblestone"],
    [STONE,"stone",0.03,"stone"],
    [STONE_BRICKS,"stonebricks",0.035,"stone_bricks"],
    [STRING,"string",0.35,"string"],
    [GUNPOWDER,"gunpowder",0.45,"gunpowder"],
    [LEATHER,"leather",0.15,"leather"],
    [LEAD,"lead",0.9,"lead"],
    [BONE,"bone",0.25,"bone"],
    [ROTTEN_FLESH,"rottenflesh",0.015,"rotten_flesh"],
    [INK_SAC,"inksac",0.06,"ink_sac"],
    [BONE,"bone",0.25,"bone"],
    [GOLDEN_APPLE,"goldenapple",17,"golden_apple"],
    [SPIDER_EYE,"spidereye",0.03,"spider_eye"],
    [GRAVEL,"gravel",0.02,"gravel"],
    [FLINT,"flint",0.05,"flint"],
    [IRON_NUGGET,"ironnugget",0.11,"iron_nugget"],
    [GOLD_NUGGET,"goldnugget",0.22,"gold_nugget"],
    [EMERALD,"emerald",6,"emerald"],
    [SHULKER_SHELL,"shulkershell",7,"shulker_shell"],
    [ICE,"ice",0.05,"ice"],
    [PACKED_ICE,"packedice",0.50,"packed_ice"],
    [BLUE_ICE,"blueice",5,"BLUE_ICE"], // may need to rebalance this
    [OAK_SAPLING,"sapling",0.07,"sapling"],
    [OBSIDIAN,"obsidian",1.5,"obsidian"],
    [COAL,"coal",0.25,"coal"],
    [SAND,"sand",0.025,"sand"],
    [SLIMEBALL,"slimeball",0.4,"slimeball"],
    [REDSTONE,"restone",0.25,"redstone"],
    [REDSTONE_BLOCK,"restoneblock",0.27*9,"redstone_block"],
    [WOOL,"wool",0.16,"wool"],
    [FEATHER,"feather",0.15,"feather"],
    [ARROW,"arrow",0.21,"arrow"],
]

let marketplace_mobs = [
    [CHICKEN,0.05,"chicken"],
    [PIG,0.08,"pig"],
    [COW,0.08,"cow"],
    [ZOMBIE,0.15,"zombie"],
    [SKELETON,0.2,"skeleton"],
    [CREEPER,0.15,"creeper"],
    [DONKEY,0.1,"donkey"],
    [HORSE,0.11,"horse"],
    [SHEEP,0.08,"sheep"],
    [DROWNED,0.15,"drowned"],
    [BAT,0.15,"bat"],
    [RABBIT,0.05,"rabbit"],
    [SPIDER,0.1,"spider"],
    [ZOMBIE_VILLAGER,0.2,"zombie villager"],
    [ENDERMAN,0.3,"enderman"],
    [SILVERFISH,0.2,"silverfish"],
    [COD,0.02,"cod fish"],
    [SALMON,0.02,"salmon"],
    [TROPICAL_FISH,0.02,"tropical fish"],
    [PUFFERFISH,0.1,"puffer fish"],
    [SQUID,0.05,"squid"],
    [STRAY,0.25,"stray"],
    [HUSK,0.15,"husk"],
    [BEE,-0.3,"bee"],
    [LLAMA,0.11,"llama"],
    [WANDERING_TRADER,-1,"wandering trader"],
    [PANDA,-0.5,"panda"],
    [PARROT,-0.5,"parrot"],
    [WITHER_SKELETON,0.5,"wither skeleton"],
    [GHAST,0.5,"ghast"],
    [BLAZE,0.6,"blaze"],
    [SLIME,0.3,"slime"],
    [LAVA_SLIME,0.5,"magma cube"],
    [WITHER,-2.5,"iron golem"],
    [WOLF,-0.25,"wolf"],
    [CAT,-0.5,"cat"],
    [OCELOT,-0.5,"ocelot"],
    [FOX,-0.5,"fox"],
    [] // extra space needed for resolving weirdness
]
function chat(str:string,self:boolean) {
    if (self) {
        player.execute('tellraw @s {"rawtext":[{"text":"'+str+'"}]}')
    } else {
        player.execute('tellraw @a {"rawtext":[{"text":"'+str+'"}]}')
    }
}

function doDing() {
    loops.runInBackground(function() {
        player.execute("playsound note.pling @s ~ ~ ~ 1 2")
        player.execute("playsound note.pling @s ~ ~ ~ 1 2.5")
    })
}

for (let i = 0; i < marketplace_mobs.length; i++) {
    if (i != marketplace_mobs.length-1) {
        let li = i
        loops.runInBackground(function() {
            loops.forever(function() { // because we're only allowed to use let and const, and not var, we have to reset variables using while loops (var would of been really nice to use here )
                let tig = false        // we also could just reuse a mob event, but for some reason they fire twice, once upon mob death, and another after the code inside the event has finished running.
                let an:any = marketplace_mobs[li][0]
                let an1:any = marketplace_mobs[li][1]
                let an2:any = marketplace_mobs[li][2]
                mobs.onMobKilled(mobs.monster(an), function() {
                    if (tig == false) {
                        tig = true
                        let worth = an1*boom
                        if (worth > 0) {
                            chat("§a§l+$"+worth.toString()+" §r§afor killing a §g§l"+an2,true)
                            currency+=worth
                        } else {
                            worth = worth *-1
                            chat("§4You were fined §l$"+worth.toString()+"§r§4 for killing a §g§l"+an2,true)
                            currency-=worth
                        }
                    }
                })
                while (tig == false) {
                    loops.pause(100)
                }
            })
       })
    } else {
        break
    }
}

function isItem(num:number) {
    for (let i = 0; i < marketplace_items.length; i++) {
        if (num == marketplace_items[i][0]) {
            let re:number = i
            return i
        }
    }
    return null
}

function findItem(str:string) {
    for (let i = 0; i < marketplace_items.length; i++) {
        if (str.toLowerCase() == marketplace_items[i][1]) {
            return i
        }
    }
    return null
}

player.onChat(";tp", function() {
    chat("§gAgent has been teleported to your position",false)
    agent.teleportToPlayer()
})

if (gamble) {
    player.onChat(";gamble", function(num:number) {
        let arg = player.getChatArg(0)
        let pars = parseFloat(arg)
        if (isNaN(pars) == true || pars < 0) {
            chat("§4Value must be a valid number.",false)
        } else {
            if (pars > currency) {
                chat("§4You do not have §l$"+pars.toString()+"§r§4. You have: §l$"+currency.toString(),false)
            } else {
                let r = randint(0,1)
                if (r == 0) {
                    let botroll = randint(1, 12)
                    let yourroll = randint(1, 12)
                    if (botroll == yourroll || botroll > yourroll) {
                        currency -= pars
                        chat("§4§l------------------------\n§r§cYou lost: §l$"+pars.toString()+"\n§r§cYour roll: §l"+yourroll.toString()+"§r§c | Bot roll: §l"+botroll.toString()+"§r§4§l\n------------------------",false)
                    } else {
                        let winpercentage = randint(50, 150)
                        let w = winpercentage/100
                        pars = pars*w
                        currency += pars
                        chat("§2§l------------------------\n§r§aYou won: §l$"+pars.toString()+"\n§r§aYour roll: §l"+yourroll.toString()+"§r§a | Bot roll: §l"+botroll.toString()+"\n§r§aYou won §l"+winpercentage.toString()+"%§r§a of your bet"+"§r§2§l\n------------------------",false)
                    }
                } else if(r == 1) {
                    let pos1 = positions.groundPosition(pos(1, 100, 2).toWorld())
                    let pos2 = positions.groundPosition(pos(1, 100, 0).toWorld())
                    let pos3 = positions.groundPosition(pos(1, 100, -2).toWorld())
                    let bet = randint(1, 3)
                    let tochoose:number = 0
                    let mult = randint(2, 4)
                    chat("§gIn front of you are 3 dirt piles.  Within one of them contains your bet. If you choose correctly you will earn §l"+mult.toString()+"x§r§g your bet.", false)
                    blocks.place(COARSE_DIRT, pos1.add(pos(0,-1,0)))
                    player.execute("summon splash_potion "+pos1.add(pos(0,1,0)))
                    blocks.place(COARSE_DIRT, pos2.add(pos(0,-1,0)))
                    player.execute("summon splash_potion "+pos2.add(pos(0,1,0)))
                    blocks.place(COARSE_DIRT, pos3.add(pos(0,-1,0)))
                    player.execute("summon splash_potion "+pos3.add(pos(0,1,0)))
                    loops.runInBackground(function() {
                        while (blocks.testForBlock(COARSE_DIRT, pos1.add(pos(0,-1,0))) && tochoose == 0) {
                            loops.pause(100)
                        }
                        if (tochoose == 0) {
                            tochoose = 1
                        }
                    })
                    loops.runInBackground(function() {
                        while (blocks.testForBlock(COARSE_DIRT, pos2.add(pos(0,-1,0))) && tochoose == 0) {
                            loops.pause(100)
                        }
                        if (tochoose == 0) {
                            tochoose = 2
                        }
                    })
                    loops.runInBackground(function() {
                        while (blocks.testForBlock(COARSE_DIRT, pos3.add(pos(0,-1,0))) && tochoose == 0) {
                            loops.pause(100)
                        }
                        if (tochoose == 0) {
                            tochoose = 3
                        }
                    })
                    while (tochoose == 0) {
                        loops.pause(500)
                    }
                    blocks.place(GRASS, pos1.add(pos(0,-1,0)))
                    blocks.place(GRASS, pos2.add(pos(0,-1,0)))
                    blocks.place(GRASS, pos3.add(pos(0,-1,0)))
                    if (tochoose == bet) {
                        doDing()
                        let earnings = pars*mult
                        currency += earnings
                        chat("§a§lYou got it! §r§aYou have won: §l$"+earnings.toString(), false)
                    } else {
                        player.execute("playsound ambient.weather.lightning.impact @s ~ ~ ~ 5 0.4")
                        player.execute("playsound block.bell.hit @s ~ ~ ~ 5 0.2")
                        currency -= pars
                        chat("§4§lOops!§r §4Wrong one, you have lost: §l$"+pars.toString(),false)
                    }
                }
            }
        }
    })
}
player.onChat(";sell", function() {
    if (agent.getItemCount(1) > 0) {
        let tab = []
        let i = 1
        let ongo = true
        while (ongo) {
            if (i != 27) {
                let itemcount = agent.getItemCount(i)
                if (itemcount == 0) {
                    ongo = false
                    break
                } else {
                    let itemtype = agent.getItemDetail(i)
                    tab.push([itemtype,itemcount,i])
                    i += 1
                }
            } else {
                let itemcount = agent.getItemCount(i)
                if (itemcount != 0) {
                    let itemtype = agent.getItemDetail(i)
                    tab.push([itemtype,itemcount,i])
                    i += 1
                    ongo = false
                    break
                } else {
                    ongo = false
                    break
                }
            }
        }
        let selltab = []
        let amount = 0
        for (let i = 0; i < tab.length; i++) {
            let h:number = isItem(tab[i][0])
            let hh:(string | number)[] = marketplace_items[h]
            if (h != null) {
                let d:any = (marketplace_items[h][2])
                d = parseFloat(d)
                let num = d
                currency += ((num*boom)*tab[i][1])*selloff
                amount += ((num*boom)*tab[i][1])*selloff
                selltab.push([hh[1],tab[i][1].toString()])
                agent.setItem(AIR, 0, tab[i][2])
            }
        }
        if (amount == 0) {
            chat("§4§lNothing was sold.",false)
        } else {
            let str = "§aYou've sold: "
            for (let i = 0; i < selltab.length; i++) {
                str = "§l"+str+selltab[i][0]+"§r§lx"+selltab[i][1]+"§a, "
            }
            str = str.substr(0,str.length-2)
            chat(str,false)
            chat("§a§l+$"+amount.toString(),false)
        }
    } else {
        chat("§4Please put in items into the agent starting from the first slot. Say ;tp to bring your agent to you.",false)
    }
})

player.onChat(";buy", function(n:number,n2:number) {
    let item = player.getChatArg(0)
    let num = findItem(item)
    if (num != null) {
        let it = marketplace_items[num]
        let price:any = it[2]
        let itemid = it[3]
        let amount = parseFloat(player.getChatArg(1))
        price = parseFloat(price) * boom
        let setprice:number = price*amount
        if (item != null && amount != null) {
            if (setprice > currency) {
                chat("§4Insufficient funds; Funds needed: §l$"+setprice.toString()+"§r§4, You have: §l"+currency.toString()+"",false)
            } else {
                if (amount > 0) {
                    currency -= setprice
                    player.execute("give @s "+itemid+" "+amount)
                    chat("§aYou have bought: §l§g"+item+"§fx"+amount.toString()+"§r§a for §l$"+setprice.toString(),false)
                } else {
                    chat("§4You cannot buy a negative amount of an item.",false)
                }
            }
        } else {
            chat("§4Arguments are incorrect; Correct usage: ;buy string integer. For example: ;buy iron 5",false)
        }
    } else {
        chat("§4No item named '"+item+"'. Please check your spelling.",false)
    }
})