Inventory backend

src/comps/core/any_inventory.rs

@@ -0,0 +1,61 @@
+use bevy::{prelude::*, ecs::component::SparseStorage};
+
+use super::{item::Item, inventory_item::InventoryItem, grid::UGrid};
+
+#[derive(Component)]
+pub struct AnyInventory {
+    size: UGrid,
+    items: Vec<InventoryItem>
+}
+
+#[allow(unused)]
+impl AnyInventory {
+    pub fn new(size: UGrid) -> Self {
+        Self { size, items: Vec::new() }
+    }
+    pub fn add_item_at(
+        &mut self,
+        position: UGrid,
+        item: impl Item<Storage = SparseStorage>,
+    ) {
+        // Is Item bigger than inventory?
+        // Does position + item size exceed bounds?
+        if !self.valid_item_and_size_for_inventory(position, &item) {
+            return;
+        }
+        // Is there an item in any of those places already?
+        if !self.item_fits_at(position, &item) {
+            return;
+        }
+        let spots_to_occupy = Self::get_spots_from_item_at_pos(position, &item);
+        self.items.push(InventoryItem::new(item, spots_to_occupy));
+    }
+    // Is there any items in inventory that are in any of the spots that this new item will be in
+    pub fn item_fits_at(&self, position: UGrid, item: &impl Item<Storage = SparseStorage>) -> bool {
+        let spots_to_occupy = Self::get_spots_from_item_at_pos(position, item);
+        for inventory_item in self.items.iter() {
+            if inventory_item.is_in_range(&spots_to_occupy) {
+                return false
+            }
+        }
+        true
+    }
+    pub fn get_spots_from_item_at_pos(position: UGrid, item: &impl Item<Storage = SparseStorage>) -> Vec<UGrid> {
+        let end_position = position + item.inventory_size();
+        let mut spots = Vec::new();
+        for pos_width in position.width..end_position.width {
+            for pos_height in position.height..end_position.height {
+                spots.push(UGrid { width: pos_width, height: pos_height });
+            }
+        }
+        spots
+    }
+    pub fn valid_item_and_size_for_inventory(
+        &self,
+        position: UGrid,
+        item: &impl Item<Storage = SparseStorage>,
+    ) -> bool {
+        let item_bounds = position + item.inventory_size();
+        !(item_bounds.width > self.size.width || item_bounds.height > self.size.height)
+    }
+}

src/comps/core/grid.rs

@@ -0,0 +1,22 @@
+
+#[derive(Copy, Clone, Default, Debug, PartialEq, Eq, PartialOrd, Ord)]
+pub struct UGrid {
+    pub width: u32,
+    pub height: u32,
+}
+
+impl std::ops::Add for UGrid {
+    type Output = UGrid;
+
+    fn add(self, rhs: Self) -> Self::Output {
+        Self { width: self.width + rhs.width, height: self.height + rhs.height }
+    }
+}
+
+impl std::ops::Sub for UGrid {
+    type Output = UGrid;
+
+    fn sub(self, rhs: Self) -> Self::Output {
+        Self { width: self.width - rhs.width, height: self.height - rhs.height }
+    }
+}

src/comps/core/inventory_item.rs

@@ -0,0 +1,39 @@
+use bevy::ecs::component::SparseStorage;
+
+use super::{item::Item, grid::UGrid};
+
+
+//#[derive()]
+pub struct InventoryItem {
+    item: Box<dyn Item<Storage = SparseStorage>>,
+    /// Coordinates that this InventoryItem occupies inside an AnyInventory
+    occupied_spots: Vec<UGrid>,
+    rotated: Option<bool>,
+}
+
+#[allow(unused)]
+impl InventoryItem {
+    pub fn item(&self) -> &dyn Item<Storage = SparseStorage> {
+        self.item.as_ref()
+    }
+    pub fn rotated(&self) -> Option<bool> {
+        self.rotated
+    }
+    pub fn new(
+        item: impl Item<Storage = SparseStorage>,
+        occupied_spots: Vec<UGrid>,
+    ) -> Self {
+        let size = item.inventory_size();
+        let rotated = item.inventory_rotatable().then(|| false);
+        Self { item: Box::new(item), occupied_spots, rotated }
+    }
+    /// Returns true if there is overlap between both
+    pub fn is_in_range(&self, spots_to_occupy: &Vec<UGrid>) -> bool {
+        for occupied_spot in self.occupied_spots.iter() {
+            if spots_to_occupy.contains(occupied_spot) {
+                return true
+            }
+        }
+        false
+    }
+}

src/comps/core/item.rs

@@ -0,0 +1,20 @@
+use bevy::prelude::*;
+
+use super::grid::UGrid;
+
+
+pub enum ItemType {
+    Holdable,
+    Equippable,
+    Consumable,
+}
+
+pub trait Item: Component {
+    fn get_type(&self) -> ItemType;
+    fn asset_path(&self) -> &str;
+    /// Optional Stackable. If value is Some(x) x is the max quantity per stack
+    fn stackable(&self) -> Option<u32>;
+    fn inventory_size(&self) -> UGrid;
+    fn inventory_rotatable(&self) -> bool;
+    fn inventory_title(&self) -> String;
+}

src/comps/core/markers/interactable.rs

@@ -0,0 +1,10 @@
+use bevy::prelude::Component;
+
+
+
+#[allow(unused)]
+#[derive(Component)]
+pub enum Interactable {
+    Holdable,
+    Lootable,
+}

src/comps/core/markers/mod.rs

@@ -4,3 +4,4 @@ pub mod holdable;
 pub mod player;
 pub mod muzzle_flash;
 pub mod bullet;
+pub mod interactable;

src/comps/core/mod.rs

@@ -1,2 +1,6 @@
 pub mod controller;
 pub mod markers;
+pub mod any_inventory;
+pub mod item;
+pub mod grid;
+pub mod inventory_item;

src/logic/core/player/hands.rs

@@ -2,7 +2,7 @@ use bevy::prelude::*;
 
 use crate::{
     comps::core::markers::{firearm::{FirearmData, MagazineData}, holdable::InPlayerHands, player::{PlayerHand, Player}},
-    logic::core::guns::{player_firing::PlayerFiringInfo, firearm::Firearm, shoot::shoot_bullet}, utils::rad_deg::radians_from_degrees, setup::{animations::AllFirearmAnimations, load_state::GameLoadState, equipment::{EquipmentChangeEvent, Equipment}}, ui::game::settings::SettingsScreenUIConfiguration,
+    logic::core::guns::{player_firing::PlayerFiringInfo, shoot::shoot_bullet}, utils::rad_deg::radians_from_degrees, setup::{animations::AllFirearmAnimations, load_state::GameLoadState, equipment::{EquipmentChangeEvent, Equipment}}, ui::game::settings::SettingsScreenUIConfiguration,
 };
 
 pub fn capture_hand_usage(
@@ -23,7 +23,7 @@ pub fn capture_hand_usage(
     animation_clips: Res<Assets<AnimationClip>>,
 
     game_load_state: Res<GameLoadState>,
-
+    #[allow(unused)]
     mut equipment_change_event_writer: EventWriter<EquipmentChangeEvent>,
     settings_screen_config: Res<SettingsScreenUIConfiguration>,
 
@@ -36,7 +36,23 @@ pub fn capture_hand_usage(
     if player_query.iter().len() == 0 {
         return;
     }
-    if let Some(player_firearm) = player_query.single().0.equipment.primary_firearm.clone() {
+
+    // Equipping stuff
+
+
+    // Equipping gun
+    /*if !settings_screen_config.settings_menu_shown {
+        if keyboard_input.just_pressed(KeyCode::Key1) {
+            equipment_change_event_writer.send(EquipmentChangeEvent(Equipment { primary_firearm: Some(Firearm::M4A1) } ));
+        } else if keyboard_input.just_pressed(KeyCode::Key2) {
+            equipment_change_event_writer.send(EquipmentChangeEvent(Equipment { primary_firearm: Some(Firearm::Glock17) } ));
+        } else if keyboard_input.just_pressed(KeyCode::Key3) {
+            equipment_change_event_writer.send(EquipmentChangeEvent(Equipment { primary_firearm: None } ));
+        }
+    }*/
+    
+    // Firearm stuff
+    if let Equipment::Firearm(player_firearm) = player_query.single().0.equipment.clone() {
         for mut player_firing_info in player_firing_info_query.iter_mut() {
             player_firing_info.full_auto_timer.tick(time.delta());
 
@@ -87,12 +103,7 @@ pub fn capture_hand_usage(
                                 (time.delta_seconds() / firearm_data.rebound_time_seconds).clamp(0.0, 1.0),
                             );
                         }
-                        // Equipping gun
+                        
-                        if keyboard_input.just_pressed(KeyCode::Key1) && !settings_screen_config.settings_menu_shown {
-                            equipment_change_event_writer.send(EquipmentChangeEvent(Equipment{ primary_firearm: Some(Firearm::M4A1) }));
-                        } else if keyboard_input.just_pressed(KeyCode::Key2) && !settings_screen_config.settings_menu_shown {
-                            equipment_change_event_writer.send(EquipmentChangeEvent(Equipment{ primary_firearm: Some(Firearm::Glock17) }));
-                        }
                         // SHOOTING & RECOIL
                         if mouse_buttons.pressed(MouseButton::Left) && !settings_screen_config.settings_menu_shown {
                             if player_firing_info.full_auto_timer.finished() {
@@ -149,3 +160,12 @@ pub fn capture_hand_usage(
     }
 
 }
+
+#[allow(unused)]
+/// Method that is run when player hits interact button. 
+/// Should raycast where the player is looking and scan for interactable
+pub fn interact_action(
+
+) {
+
+}

src/main.rs

@@ -1,3 +1,4 @@
+#![feature(step_trait)]
 use bevy::prelude::*;
 use bevy_rapier3d::prelude::*;
 use scenes::scene1;

src/scenes/scene1/spawn_points.rs

@@ -1,8 +1,8 @@
 use bevy::prelude::*;
 
-use crate::{setup::{spawn::SpawnPoint, equipment::Equipment}, comps::core::markers::player::{Player, PlayerData}, logic::core::guns::firearm::Firearm};
+use crate::{setup::{spawn::SpawnPoint, equipment::Equipment}, comps::core::markers::player::{Player, PlayerData}};
 
 pub fn set_spawn_points(mut commands: Commands) {
-    commands.spawn(SpawnPoint { at: Transform::from_xyz(3.0, 5.0, 2.0), what: Player(PlayerData{ equipment: Equipment { primary_firearm: Some(Firearm::Glock17) }}) });
+    commands.spawn(SpawnPoint { at: Transform::from_xyz(3.0, 5.0, 2.0), what: Player(PlayerData { equipment: Equipment::Nothing }) });
 
 }

src/setup/equipment.rs

@@ -9,9 +9,11 @@ use super::assets::{GltfAssets, GltfAssetType};
 #[derive(Event)]
 pub struct EquipmentChangeEvent(pub Equipment);
 /// Foundation for inventory System.
-#[derive(Component, Clone, Default, Reflect)]
+#[derive(Component, Clone, Default, Reflect, PartialEq, PartialOrd)]
-pub struct Equipment {
+pub enum Equipment {
-    pub primary_firearm: Option<Firearm>,
+    Firearm(Firearm),
+    #[default]
+    Nothing,
 }
 
 /// Called whenever player wants to change equipment
@@ -25,22 +27,21 @@ pub fn change_equipment(
     loaded_gltf_assets: Res<Assets<Gltf>>,
 ) {
     for equipment_change_event in equipment_change_event_reader.read() {
-        // TODO: Equipment change
         let Ok((mut player, player_firing_info)) = player_query.get_single_mut() else {
             return;
         } ;
         // Primary firearm change
-        if equipment_change_event.0.primary_firearm != player.0.equipment.primary_firearm {
+        if equipment_change_event.0 != player.0.equipment {
             
             let player_hands = player_hands_query.single_mut();
             
-            commands.entity(player_hands).despawn_descendants(); // Don't do this without keeping the state from the last mag
+            commands.entity(player_hands).despawn_descendants(); // TODO: Don't do this without keeping the state from the last mag
-            if let Some(new_firearm) = equipment_change_event.0.primary_firearm.clone() {
+            if let Equipment::Firearm(new_firearm) = equipment_change_event.0.clone() {
                 spawn_firearm_on_player_hands(&mut commands, player_firing_info, player_hands, &assets_gltf, &loaded_gltf_assets, new_firearm);
             }
 
             // Set the player's equipment to the newly spawned equipment
-            player.0.equipment.primary_firearm = equipment_change_event.0.primary_firearm.clone();
+            player.0.equipment = equipment_change_event.0.clone();
             println!("Equipment change done");
         }
         

src/ui/game/inventory/menu.rs

@@ -0,0 +1,12 @@
+use bevy::prelude::*;
+
+//use crate::comps::core::any_inventory::AnyInventory;
+
+
+#[allow(unused)]
+pub fn setup_inventory_screen(
+    mut commands: Commands,
+
+) {
+    
+}

src/ui/game/inventory/mod.rs

@@ -0,0 +1 @@
+pub mod menu;

src/ui/game/mod.rs

@@ -3,3 +3,4 @@ pub mod plugin;
 pub mod fps_counter;
 pub mod settings;
 pub mod settings_screen;
+pub mod inventory;

src/ui/game/plugin.rs

@@ -2,7 +2,7 @@ use bevy::prelude::*;
 
 use crate::ui::game::settings::GameConfiguration;
 
-use super::{fps_counter, settings_screen, settings::SettingsScreenUIConfiguration};
+use super::{fps_counter, settings_screen, settings::SettingsScreenUIConfiguration, inventory};
 
 pub struct MainGameUIPlugin;
 
@@ -12,7 +12,9 @@ impl Plugin for MainGameUIPlugin {
         app.insert_resource(SettingsScreenUIConfiguration::default());
         app.add_systems(Startup, (
             settings_screen::setup_settings_screen,
-            fps_counter::setup_fps_counter));
+            fps_counter::setup_fps_counter,
+            inventory::menu::setup_inventory_screen,
+        ));
         app.add_systems(Update, (
             settings_screen::toggle_settings_screen,
             settings_screen::handle_settings_button_click,