turtlegame/src/game.rs

use crate::{
	activities::{house, overworld, Activity},
	State
};
use comfy::{EngineContext, IVec2};
use std::ops::Sub;

#[derive(Debug)]
pub struct Ghost {
	/// current electric charge of the Ghost
	pub charge: f32,
	/// max electric charge of the Ghost
	pub max_charge: f32,
	pub overworld_pos: IVec2,
}

impl Default for Ghost {
	fn default() -> Self {
		Self {
			charge: 1000.0,
			max_charge: 1000.0,
			overworld_pos: IVec2::ZERO,
		}
	}
}
#[repr(i32)]
pub enum ZLayer {
	MapMax = -1,
	Human = 0,
	Ghost = 1
}

impl From<ZLayer> for i32 {
	fn from(value: ZLayer) -> Self {
		// safe because #[repr(i32)]
		value as i32
	}
}

impl Sub<i32> for ZLayer {
	type Output = i32;

	fn sub(self, other: i32) -> Self::Output {
		i32::from(self) - other
	}
}

pub fn update(state: &mut State, engine: &mut EngineContext<'_>) {
	match state.activity {
		Activity::House => house::update(state, engine),
		Activity::Overworld => overworld::update(state, engine)
	}
}

pub fn draw(state: &State, engine: &EngineContext<'_>) {
	match state.activity {
		Activity::House => house::draw(state, engine),
		Activity::Overworld => overworld::draw(state, engine)
	}
	crate::ui::draw(state, engine);
}