"Add a model for player positions"

"Create a Position model with player as key and x, y coordinates"

#[derive(Drop, Serde)]
#[dojo::model]
struct Moves {
    #[key]
    player: ContractAddress,
    remaining: u8,
}

#[derive(Drop, Serde)]
#[dojo::model]
struct Position {
    #[key]
    player: ContractAddress,
    vec: Vec2,
}

#[derive(Drop, Copy, Serde, Introspect)]
struct Vec2 {
    x: u32,
    y: u32,
}

#[derive(Copy, Drop, Serde)]
#[dojo::model]
struct GameResource {
    #[key]
    player: ContractAddress,
    #[key]
    location: ContractAddress,
    balance: u8,
}

let resource: GameResource = world.read_model((player, location));

const RESPAWN_DELAY: u128 = 9999999999999;

#[derive(Copy, Drop, Serde)]
#[dojo::model]
struct GameSetting {
    #[key]
    setting_id: u128,
    setting_value: felt252,
}

// Usage
world.write_model(@GameSetting {
    setting_id: RESPAWN_DELAY,
    setting_value: (10 * 60).into()
});

#[derive(Copy, Drop, Serde)]
#[dojo::model]
struct Position {
    #[key]
    id: u32,
    x: u32,
    y: u32,
}

#[derive(Copy, Drop, Serde)]
#[dojo::model]
struct Health {
    #[key]
    id: u32,
    health: u8,
}

// Human has Position + Health + Potions
// Orc has Position + Health (no Potions)

use dojo::model::{ModelStorage, ModelValueStorage};

let mut world = self.world(@"my_namespace");

world.write_model(@Position { player, vec: Vec2 { x: 0, y: 0 } });

let position: Position = world.read_model(player);

let resource: GameResource = world.read_model((player, location));

let entity_id = world.uuid();
world.write_model(@Health { id: entity_id, health: 100 });