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Trade: Fully working buy and sell offers.

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Improvements to prices and price-related mechanisms.
NPC: Improved get_item_name and get_item_count methods.
This commit is contained in:
zorman2000
2016-12-17 12:01:35 -05:00
parent 72ab610cd8
commit c15e8232d5
4 changed files with 167 additions and 36 deletions
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69
trade/prices.lua
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@ -4,21 +4,46 @@
npc.trade.prices = {}
-- Define default currency (based on lumps from default)
npc.trade.prices.currency = {
tier1 = "default:gold_lump",
tier2 = "default:copper_lump",
tier3 = "default:iron_lump"
}
-- TODO: Set the currency depending on available mods
-- Table that contains the prices
npc.trade.prices.table = {}
-- Default definitions for in-game items
npc.trade.prices.table["default:apple"] = {item = "default:iron_ingot", count = 1}
npc.trade.prices.table["default:stone"] = {item = "default:wood_planks", count = 1}
npc.trade.prices.table["default:cobble"] = {item = "default:iron_ingot", count = 1}
npc.trade.prices.table["farming:cotton"] = {item = "default:iron_ingot", count = 1}
npc.trade.prices.table["farming:bread"] = {item = "default:gold_ingot", count = 1}
npc.trade.prices.table["default:sword_stone"] = {item = "default:iron_ingot", count = 2}
npc.trade.prices.table["default:pick_stone"] = {item = "default:iron_ingot", count = 1}
npc.trade.prices.table["default:shovel_stone"] = {item = "default:iron_ingot", count = 2}
npc.trade.prices.table["default:axe_stone"] = {item = "default:iron_ingot", count = 1}
npc.trade.prices.table["default:hoe_stone"] = {item = "default:iron_ingot", count = 1}
-- Tier 3 items: cheap items
npc.trade.prices.table["default:cobble"] = {tier = npc.trade.prices.currency.tier3, count = 0.1}
npc.trade.prices.table["flowers:geranium"] = {tier = npc.trade.prices.currency.tier3, count = 0.5}
npc.trade.prices.table["default:apple"] = {tier = npc.trade.prices.currency.tier3, count = 1}
npc.trade.prices.table["default:tree"] = {tier = npc.trade.prices.currency.tier3, count = 2}
npc.trade.prices.table["flowers:rose"] = {tier = npc.trade.prices.currency.tier3, count = 2}
npc.trade.prices.table["default:stone"] = {tier = npc.trade.prices.currency.tier3, count = 2}
npc.trade.prices.table["farming:seed_cotton"] = {tier = npc.trade.prices.currency.tier3, count = 3}
npc.trade.prices.table["farming:seed_wheat"] = {tier = npc.trade.prices.currency.tier3, count = 3}
npc.trade.prices.table["default:clay_lump"] = {tier = npc.trade.prices.currency.tier3, count = 3}
npc.trade.prices.table["mobs:meat_raw"] = {tier = npc.trade.prices.currency.tier3, count = 4}
npc.trade.prices.table["default:sapling"] = {tier = npc.trade.prices.currency.tier3, count = 5}
npc.trade.prices.table["mobs:meat"] = {tier = npc.trade.prices.currency.tier3, count = 5}
npc.trade.prices.table["mobs:leather"] = {tier = npc.trade.prices.currency.tier3, count = 6}
npc.trade.prices.table["default:sword_stone"] = {tier = npc.trade.prices.currency.tier3, count = 6}
npc.trade.prices.table["default:shovel_stone"] = {tier = npc.trade.prices.currency.tier3, count = 6}
npc.trade.prices.table["default:axe_stone"] = {tier = npc.trade.prices.currency.tier3, count = 6}
npc.trade.prices.table["default:hoe_stone"] = {tier = npc.trade.prices.currency.tier3, count = 6}
npc.trade.prices.table["default:pick_stone"] = {tier = npc.trade.prices.currency.tier3, count = 7}
npc.trade.prices.table["farming:cotton"] = {tier = npc.trade.prices.currency.tier3, count = 15}
npc.trade.prices.table["farming:bread"] = {tier = npc.trade.prices.currency.tier3, count = 20}
-- Tier 2 items: medium priced items
-- Tier 1 items: expensive items
npc.trade.prices.table["default:diamond"] = {tier = npc.trade.prices.currency.tier1, count = 90}
npc.trade.prices.table["advanced_npc:marriage_ring"] = {tier = npc.trade.prices.currency.tier1, count = 100}
-- Functions
function npc.trade.prices.update(item_name, price)
@ -50,4 +75,28 @@ end
function npc.trade.prices.remove(item_name)
npc.trade.prices.table[item_name] = nil
end
-- Gets all the item for a specified budget
function npc.trade.prices.get_items_for_currency_count(tier, count)
local result = {}
for item_name, price in pairs(npc.trade.prices.table) do
-- Check price currency is of the same tier
if price.tier == tier and price.count <= count then
result[item_name] = price
end
end
return result
end
-- This methods will compare the given item string to the
-- currencies set in the currencies table. Returns true if
-- itemstring is a currency.
function npc.trade.prices.is_item_currency(itemstring)
if npc.get_item_name(itemstring) == npc.trade.prices.currency.tier3
or npc.get_item_name(itemstring) == npc.trade.prices.currency.tier2
or npc.get_item_name(itemstring) == npc.trade.prices.currency.tier1 then
return true
end
return false
end