Very basic inventory

src/inventory.rs

@@ -0,0 +1,130 @@
+use egui_inspect::derive::Inspect;
+
+use crate::{math::IntRect, world::TileId};
+
+/// We won't have more than 65535 different items
+pub type ItemId = u16;
+/// We won't have more than 65535 item quantity in a single slot
+pub type ItemQty = u16;
+
+/// Inventory slot
+#[derive(Debug, Inspect)]
+pub struct Slot {
+    pub id: ItemId,
+    pub qty: ItemQty,
+}
+
+#[derive(Debug, Inspect)]
+pub struct Inventory {
+    pub slots: Vec<Slot>,
+}
+impl Inventory {
+    /// A new inventory filled with some debug items
+    pub(crate) fn new_debug() -> Inventory {
+        Self {
+            slots: vec![
+                Slot {
+                    id: items::WOOD_PICK,
+                    qty: 1,
+                },
+                Slot {
+                    id: items::DIRT_BLOCK,
+                    qty: 100,
+                },
+                Slot {
+                    id: items::TORCH,
+                    qty: 100,
+                },
+                Slot {
+                    id: items::PLATFORM,
+                    qty: 100,
+                },
+            ],
+        }
+    }
+}
+
+#[derive(Debug, Inspect)]
+pub struct ItemDef {
+    pub name: String,
+    pub graphic_name: String,
+    pub tex_rect: IntRect,
+    #[opaque]
+    pub use_action: UseAction,
+    pub consumable: bool,
+}
+
+#[derive(Debug, Inspect, PartialEq)]
+pub enum TileLayer {
+    Bg,
+    Mid,
+    Fg,
+}
+
+#[derive(Debug)]
+pub enum UseAction {
+    PlaceTile { layer: TileLayer, id: TileId },
+    RemoveTile { layer: TileLayer },
+}
+
+#[derive(Debug, Inspect)]
+pub struct ItemDb {
+    pub db: Vec<ItemDef>,
+}
+
+impl Default for ItemDb {
+    fn default() -> Self {
+        Self {
+            db: vec![
+                ItemDef {
+                    name: String::from("Dirt Block"),
+                    graphic_name: String::from("tiles/dirt"),
+                    tex_rect: IntRect::default(),
+                    use_action: UseAction::PlaceTile {
+                        layer: TileLayer::Mid,
+                        id: 3,
+                    },
+                    consumable: true,
+                },
+                ItemDef {
+                    name: String::from("Torch"),
+                    graphic_name: String::from("tiles/torch"),
+                    tex_rect: IntRect::default(),
+                    use_action: UseAction::PlaceTile {
+                        layer: TileLayer::Mid,
+                        id: 4,
+                    },
+                    consumable: true,
+                },
+                ItemDef {
+                    name: String::from("Platform"),
+                    graphic_name: String::from("tiles/platform"),
+                    tex_rect: IntRect::default(),
+                    use_action: UseAction::PlaceTile {
+                        layer: TileLayer::Mid,
+                        id: 5,
+                    },
+                    consumable: true,
+                },
+                ItemDef {
+                    name: String::from("Wood Pick"),
+                    graphic_name: String::from("items/woodpick"),
+                    tex_rect: IntRect::default(),
+                    use_action: UseAction::RemoveTile {
+                        layer: TileLayer::Mid,
+                    },
+                    consumable: true,
+                },
+            ],
+        }
+    }
+}
+
+pub mod items {
+    use super::ItemId;
+
+    pub const DIRT_BLOCK: ItemId = 0;
+    pub const TORCH: ItemId = 1;
+    pub const PLATFORM: ItemId = 2;
+    pub const WOOD_PICK: ItemId = 3;
+}