make variable inventory slots

src/artifacts.rs

@@ -72,15 +72,21 @@ impl Potion {
             was_collected: false,
         }
     }
+
+    pub fn get_health(&self) -> usize {
+        self.health
+    }
 }
 
 impl Artifact for Potion {
     fn get_representation(&self) -> (&str, Color) {
         ("P", Color::Green)
     }
+
     fn get_immutable_position(&self) -> &Position {
         &self.position
     }
+
     fn collect(&mut self, player: &mut Player, messages: &mut Vec<String>) {
         // only consume potion of the player can gain at least one health point
         if !player.is_healthy() {
@@ -105,8 +111,3 @@ impl Artifact for Potion {
         self.was_collected
     }
 }
-impl Potion {
-    pub fn get_health(&self) -> usize {
-        self.health
-    }
-}

src/main.rs

@@ -103,13 +103,14 @@ fn main() -> Result<()> {
                 .style(Style::default().bg(Color::Blue));
             frame.render_widget(
                 Paragraph::new(format!(
-                    "Health: {}/{}\nExp: {}\nGold: {}\nLevel: {}\nInventory: {}/10",
+                    "Health: {}/{}\nExp: {}\nGold: {}\nLevel: {}\nInventory: {}/{}",
                     game.get_player().get_life(),
                     game.get_player().get_max_life(),
                     game.get_player().get_experience(),
                     game.get_player().get_gold(),
                     game.get_player().get_immutable_position().get_level() + 1,
-                    game.get_player().inventory_size(),
+                    game.get_player().inventory_size().0,
+                    game.get_player().inventory_size().1,
                 ))
                 .block(block)
                 .wrap(Wrap { trim: true }),

src/player.rs

@@ -12,6 +12,7 @@ pub struct Player {
     gold: usize,
     experience: usize,
     inventory: Vec<Potion>,
+    inventory_slots: usize,
 }
 
 impl Player {
@@ -24,6 +25,7 @@ impl Player {
             gold: 0,
             experience: 0,
             inventory: vec![],
+            inventory_slots: 2,
         }
     }
     pub fn get_name(&self) -> String {
@@ -70,7 +72,7 @@ impl Player {
     }
 
     pub fn add_to_inventory(&mut self, potion: &Potion) -> bool {
-        if self.inventory.len() < 10 {
+        if self.inventory.len() < self.inventory_slots {
             self.inventory.push(*potion);
             true
         } else {
@@ -78,8 +80,8 @@ impl Player {
         }
     }
 
-    pub fn inventory_size(&self) -> usize {
-        self.inventory.len()
+    pub fn inventory_size(&self) -> (usize, usize) {
+        (self.inventory.len(), self.inventory_slots)
     }
 
     pub fn consume_inventory(&mut self) -> usize {