move components to separate file

src/components.rs

@@ -0,0 +1,22 @@
+use rltk::RGB;
+
+use specs::prelude::*;
+
+#[derive(Component)]
+pub struct Position {
+    pub x: i32,
+    pub y: i32,
+}
+
+#[derive(Component)]
+pub struct Renderable {
+    pub glyph: u8,
+    pub fg: RGB,
+    pub bg: RGB,
+}
+
+#[derive(Component)]
+pub struct LeftMover {}
+
+#[derive(Component, Debug)]
+pub struct Player {}

src/main.rs

@@ -5,33 +5,16 @@ mod rect;
 pub use rect::*;
 mod map;
 pub use map::*;
+mod components;
+pub use components::*;
 
 #[macro_use]
 extern crate specs_derive;
 
-#[derive(Component)]
-pub struct Position {
-    x: i32,
-    y: i32,
-}
-
-#[derive(Component)]
-pub struct Renderable {
-    glyph: u8,
-    fg: RGB,
-    bg: RGB,
-}
-
 pub struct State {
     ecs: World,
 }
 
-#[derive(Component)]
-pub struct LeftMover {}
-
-#[derive(Component, Debug)]
-pub struct Player {}
-
 fn try_move_player(delta_x: i32, delta_y: i32, ecs: &mut World) {
     let mut positions = ecs.write_storage::<Position>();
     let mut players = ecs.write_storage::<Player>();