elikar 0.1.9

A rust asynchronous ECS game engine
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46

use sdl2_sys::*;
use std::os::raw::c_int;
use xrunits::time::{BuildSecond, Second};

#[derive(Debug, Copy, Clone, Ord, PartialOrd, Eq, PartialEq)]
pub enum PowerState {
    OnBattery,
    NoBattery,
    Charging,
    Charged,
}

pub fn power_state() -> Option<PowerState> {
    let state = unsafe { sdl2_sys::SDL_GetPowerInfo(0 as *mut c_int, 0 as *mut c_int) };
    match state {
        SDL_PowerState::SDL_POWERSTATE_UNKNOWN => Option::None,
        SDL_PowerState::SDL_POWERSTATE_ON_BATTERY => Some(PowerState::OnBattery),
        SDL_PowerState::SDL_POWERSTATE_NO_BATTERY => Some(PowerState::NoBattery),
        SDL_PowerState::SDL_POWERSTATE_CHARGING => Some(PowerState::Charging),
        SDL_PowerState::SDL_POWERSTATE_CHARGED => Some(PowerState::Charged),
    }
}

pub fn battery_time() -> Option<Second> {
    let mut sec: i32 = -1;
    unsafe {
        sdl2_sys::SDL_GetPowerInfo(&mut sec as *mut c_int, 0 as *mut c_int);
    }
    if sec < 0 {
        Option::None
    } else {
        Some(sec.sec())
    }
}

pub fn battery_percentage() -> Option<u32> {
    let mut psc: i32 = -1;
    unsafe {
        sdl2_sys::SDL_GetPowerInfo(0 as *mut c_int, &mut psc as *mut c_int);
    }
    if 0 <= psc && psc <= 100 {
        Some(psc as u32)
    } else {
        Option::None
    }
}