调用方式
addon:GetConditionHealthForecast(unit, healthTarget, percentage, mode, cache)
可直接通过 addon 使用,无需依赖项。
作用
估算距离达到所选生命值的时间。每个评估轮次缓存完整的原生身份和惰性标量观测,而提供者、历史、窗口、时钟和预测保持实时。目标完全相等时,会在处理历史之前返回零。对于零速率或反向速率,保留刻意设计的“无估算”false 结果和初始化的零结果;所需信息无效、溢出或 4096 单位工作量耗尽时为不可用。绝不修改历史或编造部分估算。
参数
| 名称 | 类型 | 作用 |
|---|---|---|
self | RMAddon | Rotation Master 插件实例(使用冒号调用时隐含传入)。 |
unit | string | 所选的单位标识,在观测中保持不变。 |
healthTarget | number | 绝对生命值目标(负数表示缺口)或百分比小数。 |
percentage | boolean | 为 true 时选择百分比目标以及可选的全新提供者信息。 |
mode | any | noheals 只选择伤害;nodmg 只选择治疗;其他可读的值会同时选择两者。 |
cache | table | nil | 评估轮次的原生观测缓存;为 nil 时重新查询。 |
返回值
| 1 | number | boolean | nil | 有限的预计时间(包括零);已知不存在/无估算时为 false,不可用时为 nil。 |
|---|---|---|
| 2 | string | nil | 观测、历史、工作量上限或运算的可用性原因。 |
版本
内置辅助函数在每个版本上都会注册。不同的是它们读取的游戏 API;某个 API 缺失时,辅助函数会改用后备方案,或返回 nil 并附上原因。
它不直接读取任何游戏 API。
秘密值(正式服和永久服)
在正式服和永久服上,游戏交给插件的是秘密值。此辅助函数会检查它读取的内容(addon.Platform:CanReadValue),遇到无法比较的秘密值时返回 nil 并附上原因(例如 restricted-value),而不是返回该秘密值。请将 nil 视为不可用,而不是假。
插件如何调用它
- 距离生命值达到所需时间 (evaluate)
local eta,reason=addon:GetConditionHealthForecast(value.unit,value.health,false,value.mode,cache) - 距离生命值百分比达到所需时间 (evaluate)
local eta,reason=addon:GetConditionHealthForecast(value.unit,value.health,true,value.mode,cache)
依赖项
finite→Core.health_forecast_conditions.finitenativeValue→Core.health_forecast_conditions.nativeValuereadField→Core.health_forecast_conditions.readField
源码
Core/health_forecast_conditions.lua,第 78 行。在游戏中为只读;“复制”会生成一份可编辑的副本。
Core.health_forecast_conditions.GetConditionHealthForecast(self, unit, healthTarget, percentage, mode, cache)
local platform=self.Platform
local policy=platform:GetCombatDataPolicy()
if policy~='probe' and policy~='restricted' then return nil,'unsupported-policy' end
if not platform:CanReadValue(unit) or not platform:CanReadValue(percentage) or not platform:CanReadValue(cache) then return nil,'restricted-value' end
if type(unit)~='string' or unit=='' or type(percentage)~='boolean' then return nil,'invalid-health-forecast-query' end
if cache~=nil and type(cache)~='table' then return nil,'invalid-health-forecast-cache' end
if type(platform.GetHealthForecastIdentityObservation)~='function' then return nil,'missing-api' end
local guid,identityReason=addon.Functions.cache.getCached(cache,platform.GetHealthForecastIdentityObservation,platform,unit)
if not platform:CanReadValue(guid) then return nil,'restricted-value' end
if guid==nil then return nil,identityReason or 'unit-guid-unavailable' end
if guid==false then return false end
if type(guid)~='string' or guid=='' then return nil,'invalid-health-forecast-identity' end
local current,maximum
if percentage then
if type(platform.GetHealthForecastProviderObservation)~='function' then return nil,'missing-api' end
local provider,why=platform:GetHealthForecastProviderObservation(unit)
if not platform:CanReadValue(provider) then return nil,'restricted-value' end
if provider==nil then return nil,why or 'health-provider-unavailable' end
current,why=readField(platform,provider,'current')
if why then return nil,why end
maximum,why=readField(platform,provider,'maximum')
if why then return nil,why end
if current==nil or current==false then current,why=nativeValue(self,unit,'current',cache);if current==nil then return nil,why end end
if maximum==nil or maximum==false then maximum,why=nativeValue(self,unit,'maximum',cache);if maximum==nil then return nil,why end end
else
local why;current,why=nativeValue(self,unit,'current',cache)
if current==nil then return nil,why end
end
local valid,reason=finite(platform,current)
if not valid then return nil,reason end
if current<0 then return nil,'invalid-health-forecast-number' end
valid,reason=finite(platform,healthTarget)
if not valid then return nil,reason end
local target=healthTarget
if percentage then
valid,reason=finite(platform,maximum)
if not valid then return nil,reason end
if maximum<0 then return nil,'invalid-health-forecast-number' end
target=maximum*healthTarget
elseif healthTarget<0 then
local why;maximum,why=nativeValue(self,unit,'maximum',cache)
if maximum==nil then return nil,why end
target=target+maximum
end
valid,reason=finite(platform,target)
if not valid then return nil,reason end
if current==target then return 0 end
local history,why=readField(platform,self.damageHistory,guid)
if why then return nil,why end
if history==nil or history==false then return false end
if type(history)~='table' then return nil,'invalid-forecast-history' end
if not platform:CanReadValue(mode) then return nil,'restricted-value' end
local noheals,nodmg=mode=='noheals',mode=='nodmg'
local profile,profileReason=readField(platform,self.db,'profile')
if profileReason then return nil,profileReason end
local window,windowReason=readField(platform,profile,'damage_history')
if windowReason then return nil,windowReason end
valid,reason=finite(platform,window)
if not valid then return nil,reason end
if type(platform.GetHealthForecastTimeObservation)~='function' then return nil,'missing-api' end
local now,timeReason=platform:GetHealthForecastTimeObservation()
if not platform:CanReadValue(now) then return nil,'restricted-value' end
if now==nil then return nil,timeReason or 'forecast-time-unavailable' end
valid,reason=finite(platform,now)
if not valid then return nil,reason end
local functions=self.Functions.forecast
if type(functions)~='table' or type(functions.calculate)~='function' then return nil,'forecast-kernel-unavailable' end
local ok,rate,seconds,forecastReason=pcall(functions.calculate,platform,history,window,noheals,nodmg,now)
if not ok then return nil,'forecast-kernel-error' end
if not platform:CanReadValue(forecastReason) then return nil,'restricted-value' end
if forecastReason~=nil then return nil,forecastReason end
if not platform:CanReadValue(rate) then return nil,'restricted-value' end
if rate==nil or rate==false then return false end
valid,reason=finite(platform,rate)
if not valid then return nil,reason end
valid,reason=finite(platform,seconds)
if not valid then return nil,reason end
if seconds<=2 then return false end
local eta=0
local distance,divisor
if rate<0 and target<current then distance=current-target;divisor=-rate
elseif rate>0 and target>current then distance=target-current;divisor=rate end
if distance~=nil then
valid,reason=finite(platform,distance)
if not valid then return nil,reason end
eta=distance/divisor
end
valid,reason=finite(platform,eta)
if not valid then return nil,reason end
return eta