生死衰旺 (Sheng-Si Shuai-Wang)

Source: src/shengsi.rs

生死衰旺 (Sheng-Si Shuai-Wang) is just a combination of 4 Chinese characters, each being:

(1) Growing --> 生 (Sheng)
(2) Deadly --> 死 (Si)
(3) Perishing --> 衰 (Shuai)
(4) Prosperous --> 旺 (Wang)

They are often used in 四柱命理学 (The Four Pillars of Destiny), but used in Feng-Shui as well. It simply suggests that there are 4 states to the energy occupying the space. In 玄空飞星風水 (Xuan-Kong Fei-Xing Feng-Shui), it describes the state for the target year in 三元九運 (Sang-Yuan Jiu-Yun), especially, for its 向星 (Xiang-Xing).

shengsi::ShengSi

A struct representing 生死衰旺 (Sheng-Si Shuai-Wang). key would be: "sheng", "si", "shuai", or "wang".

#[derive(Debug, Clone, Deserialize, Serialize)]
pub struct ShengSi<'a> {
    pub key: &'a str,
    pub kanji: &'a str,
    pub meaning: &'a str,
}

shengsi::ShengSiYearlyAlloc

A struct holding allocations of 生死衰旺 (Sheng-Si Shuai-Wang) for the given year. For usize (in Vec<usize>) is 九星 (Jiu-Xing) index.

#[derive(Debug, Clone)]
pub struct ShengSiYearlyAlloc {
    pub wang: Vec<usize>,
    pub sheng: Vec<usize>,
    pub shuai: Vec<usize>,
    pub si: Vec<usize>,
}

shengsi::SHENG_SI

HashMap<&str, ShengSi>

A HashMap for 生死衰旺 (Sheng-Si Shuai-Wang) by key (for each holds ShengSi).

shengsi::SHENG_SI_ALLOC

Vec<ShengSiYearlyAlloc>

For every year, some 九星 (Jiu-Xing) maybe in 旺 (Wang = Prospering) phase, but some maybe in 死 (Si = Dying). 生死衰旺 (Sheng-Si Shuai-Wang) for 九星 (Jiu-Xing) is no random, but has certain patterns, and is repeated every 9 years. This cycle is called 三元九運 (Sang-Yuan Jiu-Yun), and given the 運盤星 (Un-Pan Xing) index for the specific year, you can tell of 生死衰旺 (Sheng-Si Shuai-Wang) for all the other 九星 (Jiu-Xing). Here, it is constructing the patterns for 9 years, and making them into a static vector for which each index being the 運盤星 (Un-Pan Xing) index. If you know the 運盤星 (Un-Pan Xing) index for the year, this static vector will tell you 生死衰旺 (Sheng-Si Shuai-Wang) for all 九星 (Jiu-Xing).

shengsi::get_shengsi_mapping

Given 運盤 (Un-Pan) index and given a layout for the current 運盤 (Un-Pan) positions (&[usize; 9]), returns the corresponding 生死衰旺 (Sheng-Si Shuai-Wang) situation.

Example:

use std::convert::TryInto;
use mikaboshi::shengsi::{get_shengsi_mapping, ShengSi};
use mikaboshi::test_mods::ShengSiParams;
use wasm_bindgen::prelude::*;

#[wasm_bindgen]
pub fn xx(params: &JsValue) -> JsValue {
    let params: ShengSiParams = params.into_serde().unwrap();
    let unpan_id: usize = params.unpan_id;
    let chart: [usize; 9] = params
        .unpan_xing_chart
        .try_into()
        .unwrap_or_else(|v: Vec<usize>| {
            panic!("Expected a Vec of length 9 but it was {}", v.len())
        });
    let mapping: Vec<Option<&ShengSi>> = get_shengsi_mapping(unpan_id, &chart);
    JsValue::from_serde(&mapping).unwrap()
}

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