43 lines
1.6 KiB
Python
43 lines
1.6 KiB
Python
# -*- coding: utf-8 -*-
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from odoo import models, fields, api
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class GameCurrency(models.Model):
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_name = 'game.currency'
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_description = '游戏货币等级'
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_order = 'level asc'
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level = fields.Integer(string='等级', required=True)
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name = fields.Char(string='名称', required=True)
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desc = fields.Text(string='描述')
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rate = fields.Integer(
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string='兑换比例',
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default=1,
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help='多少单位本货币可兑换 1 单位下一等级货币。例如 100 墟铢 = 1 灵币，则墟铢的 rate 为 100。'
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)
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@api.model
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def convert(self, amount, from_level, to_level):
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"""按等级汇率将 amount 从 from_level 换算为 to_level 货币。
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汇率方向：低等级 → 高等级 为除以 rate，高等级 → 低等级 为乘以 rate。
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最高等级货币（元玺）的 rate 固定为 1，仅作占位。
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"""
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if from_level == to_level:
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return amount
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currencies = self.search_read([], ['level', 'rate'], order='level asc')
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rate_map = {c['level']: c['rate'] or 1 for c in currencies}
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if from_level < to_level:
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# 低等级 → 高等级：逐级除以兑换比例
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result = amount
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for lv in range(from_level, to_level):
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result = result / rate_map.get(lv, 1)
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return result
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else:
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# 高等级 → 低等级：逐级乘以兑换比例
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result = amount
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for lv in range(to_level, from_level):
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result = result * rate_map.get(lv, 1)
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return result
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