feat!: Item processing

- Added try_insert_item system
- Added rotated field on Item
- Implemented UI item drawing with scale and rotation

BREAKING CHANGE: Item.swap_size renamed to Item.rotate
    Item.clone_swapped renamed to Item.clone_rotated

src/inventory/item.rs

@@ -2,19 +2,20 @@ use std::mem::swap;
 
 use bevy::prelude::*;
 
-#[derive(Component, Clone)]
+#[derive(Component, Clone, Debug)]
 pub struct Item {
     pub size: UVec2,
     pub position: Option<UVec2>,
+    pub rotated: bool,
 }
 
 impl Item {
     pub fn new(size: UVec2) -> Self {
-        Self { size, position: None }
+        Self { size, position: None, rotated: false }
     }
 
     pub fn new_positioned(size: UVec2, position: UVec2) -> Self {
-        Self { size, position: Some(position) }
+        Self { size, position: Some(position), rotated: false }
     }
 
     pub fn rect(&self) -> Option<URect> {
@@ -36,14 +37,15 @@ impl Item {
     }
 
     /// Swap size.x with size.y
-    pub fn swap_size(&mut self) {
+    pub fn rotate(&mut self) {
         swap(&mut self.size.x, &mut self.size.y);
+        self.rotated = !self.rotated;
     }
 
     /// Get clone of item with swapped size
-    pub fn clone_swapped(&self) -> Self {
+    pub fn clone_rotated(&self) -> Self {
         let mut new = self.clone();
-        new.swap_size();
+        new.rotate();
         new
     }
 }