init commit

src/systems.rs

@@ -0,0 +1,15 @@
+use std::collections::HashMap;
+use bevy::prelude::*;
+
+use crate::components::*;
+use crate::util::roll;
+
+pub fn initiate_battle(query: Query<Entity, With<PlayerCharacter>>, mut commands: Commands) {
+    let order: HashMap<u32, Entity> = query.iter().map(|ent| {
+	let (total, _rolls) = roll("1d20");
+	(total, ent)
+    }).collect();
+
+    commands.spawn(Battle(order));
+}
+