Rename buildings module to structures

src/app/states/skirmish_states/structures/base.rs

@@ -0,0 +1,34 @@
+use ratatui::style::Color;
+
+use crate::app::states::Players;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct BaseBuilding {
+    owner: Players,
+    level: u8,
+}
+
+impl BaseBuilding {
+    pub fn new(owner: Players) -> Self {
+        Self { owner, level: b'1' }
+    }
+
+    pub fn get_tag(&self) -> char {
+        'B'
+    }
+
+    pub fn get_color(&self) -> Color {
+        match self.owner {
+            Players::Player => Color::LightBlue,
+            Players::Enemy => Color::LightRed,
+        }
+    }
+
+    pub fn get_owner(&self) -> Players {
+        self.owner
+    }
+
+    pub fn get_level(&self) -> char {
+        self.level as char
+    }
+}