cleaned up some api impl, added food + foodgen

src/lib/ai.rs

@@ -7,20 +7,16 @@ use rand::thread_rng;
 
 pub trait AI {
     fn step(&mut self, b: &Screen, w: &mut World) -> BoardCommand;
-    fn get_position(&self) -> Point;
     fn plan(&mut self, w: &World) {}
 }
 
+#[derive(Clone)]
 pub enum AIGoal {
     Reach(Point),
     Idle,
 }
 
 impl AI for Ant {
-    fn get_position(&self) -> Point {
-        self.pos.clone()
-    }
-
     fn plan(&mut self, w: &World) {
         if self.plan.len() == 0 {
             self.plan = match self.goal {
@@ -31,7 +27,7 @@ impl AI for Ant {
                     } else {
                         astar(&self.pos, &target)
                     }
-                },
+                }
                 AIGoal::Idle => vec![],
             }
         }
@@ -41,17 +37,16 @@ impl AI for Ant {
     fn step(&mut self, b: &Screen, w: &mut World) -> BoardCommand {
         let choice = match self.goal {
             AIGoal::Idle => {
-               let valid = w.get_valid_movements(&self.pos, b);
-               let mut rng = thread_rng();
-               valid.choose(&mut rng).cloned()      
-            },
+                let valid = w.get_valid_movements(&self.pos, b);
+                let mut rng = thread_rng();
+                valid.choose(&mut rng).cloned()
+            }
             AIGoal::Reach(_) => {
                 let movement = self.plan.pop();
                 movement
             }
         };
 
-
         if !choice.is_none() {
             let pos = choice.unwrap();
             if w.cleared.contains(&pos) {
@@ -83,16 +78,9 @@ impl AI for Egg {
             BoardCommand::Hatch(self.id, self.queen_id)
         }
     }
-
-    fn get_position(&self) -> Point {
-        self.pos.clone()
-    }
 }
 
 impl AI for Queen {
-    fn get_position(&self) -> Point {
-        self.pos.clone()
-    }
     fn step(&mut self, b: &Screen, w: &mut World) -> BoardCommand {
         let valid: Vec<Point> = w.get_valid_movements(&self.pos, b);
         let mut rng = thread_rng();

src/lib/entity.rs

@@ -1,6 +1,8 @@
-use crate::lib::ai::{AI, AIGoal};
+use crate::lib::ai::{AIGoal, AI};
 use crate::lib::point::Point;
-use crate::lib::screen::Screen;
+use crate::lib::screen::{BoardCommand, Screen};
+use crate::lib::world::World;
+use rand::Rng;
 
 use std::collections::HashMap;
 
@@ -8,28 +10,55 @@ use ncurses::*;
 
 use downcast_rs::{impl_downcast, Downcast};
 
-pub trait Entity: AI + Renderable + Downcast {}
-impl_downcast!(Entity);
+pub trait Entity: AI + Downcast {
+    fn get_position(&self) -> Point;
+    fn get_id(&self) -> u32;
+    fn set_id(&mut self, id: u32);
+}
+
+macro_rules! impl_entity {
+    ($t: ident) => {
+        impl Entity for $t {
+            fn get_position(&self) -> Point {
+                self.pos.clone()
+            }
+
+            fn get_id(&self) -> u32 {
+                self.id
+            }
 
+            fn set_id(&mut self, id: u32) {
+                self.id = id;
+            }
+        }
+    };
+}
+
+impl_downcast!(Renderable);
+
+#[derive(Clone)]
 pub struct Ant {
     pub pos: Point,
     pub id: u32,
     pub goal: AIGoal,
-    pub plan: Vec<Point>
+    pub plan: Vec<Point>,
 }
 
 impl Ant {
-    pub fn new(x: i32, y: i32, id: u32) -> Ant {
+    pub fn new(x: i32, y: i32) -> Ant {
         Ant {
             pos: Point(x, y),
-            id,
+            id: 0,
             plan: vec![],
-            goal: AIGoal::Idle
+            goal: AIGoal::Idle,
         }
     }
 }
-
-impl Entity for Ant {}
+impl_entity!(Ant);
+impl_entity!(Food);
+impl_entity!(FoodGenerator);
+impl_entity!(Egg);
+impl_entity!(Queen);
 
 impl Renderable for Ant {
     fn representation(&self) -> &str {
@@ -44,6 +73,7 @@ impl Renderable for Ant {
     }
 }
 
+#[derive(Clone)]
 pub struct Queen {
     pub pos: Point,
     pub egg_count: u8,
@@ -64,8 +94,10 @@ impl Renderable for Queen {
     }
 }
 
-pub trait Renderable: AI {
-    fn representation(&self) -> &str;
+pub trait Renderable: Entity {
+    fn representation(&self) -> &str {
+        "X"
+    }
     fn before_render(&self) {}
     fn after_render(&self) {}
     fn render(&self, b: &Screen) {
@@ -76,16 +108,16 @@ pub trait Renderable: AI {
 }
 
 impl Queen {
-    pub fn new(x: i32, y: i32, id: u32) -> Queen {
+    pub fn new(x: i32, y: i32) -> Queen {
         Queen {
             pos: Point(x, y),
             egg_count: 0,
-            id,
+            id: 0,
         }
     }
 }
 
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct Egg {
     pub pos: Point,
     pub counter: u8,
@@ -108,21 +140,18 @@ impl Renderable for Egg {
 }
 
 impl Egg {
-    pub fn new(x: i32, y: i32, id: u32, queen_id: u32) -> Egg {
+    pub fn new(x: i32, y: i32, queen_id: u32) -> Egg {
         Egg {
             pos: Point(x, y),
             counter: 10,
-            id,
+            id: 0,
             queen_id,
         }
     }
 }
 
-impl Entity for Queen {}
-impl Entity for Egg {}
-
 pub struct Entities {
-    pub data: HashMap<u32, Box<dyn Entity>>,
+    pub data: HashMap<u32, Box<dyn Renderable>>,
     id_counter: u32,
 }
 
@@ -134,27 +163,77 @@ impl Entities {
         }
     }
 
-    pub fn add_ant(&mut self, x: i32, y: i32) -> u32 {
-        let a = Ant::new(x, y, self.id_counter);
-        let id = a.id;
-        self.data.insert(a.id, Box::new(a));
+    pub fn add_entity<T: Renderable + Clone>(&mut self, e: &T) -> u32 {
+        let mut clone = e.clone();
+        clone.set_id(self.id_counter);
+        let id = clone.get_id();
+        self.data.insert(id, Box::new(clone));
         self.id_counter += 1;
-        id
+        e.get_id()
     }
+}
 
-    pub fn add_queen(&mut self, x: i32, y: i32) -> u32 {
-        let q = Queen::new(x, y, self.id_counter);
-        let id = q.id;
-        self.data.insert(q.id, Box::new(q));
-        self.id_counter += 1;
-        id
+#[derive(Clone)]
+pub struct Food {
+    pos: Point,
+    id: u32,
+}
+
+impl Food {
+    pub fn new(x: i32, y: i32) -> Food {
+        Food {
+            pos: Point(x, y),
+            id: 0,
+        }
+    }
+}
+
+impl AI for Food {
+    fn step(&mut self, b: &Screen, w: &mut World) -> BoardCommand {
+        // perhaps check if we're in target?
+        // implement drag logic?
+        BoardCommand::Noop
     }
+}
 
-    pub fn add_egg(&mut self, x: i32, y: i32, queen_id: u32) -> u32 {
-        let e = Egg::new(x, y, self.id_counter, queen_id);
-        let id = e.id;
-        self.data.insert(e.id, Box::new(e));
-        self.id_counter += 1;
-        id
+impl Renderable for Food {
+    fn representation(&self) -> &str {
+        "f"
+    }
+}
+
+// no position, does not get rendered yet acts per turn
+#[derive(Clone)]
+pub struct FoodGenerator {
+    counter: u32,
+    pos: Point,
+    id: u32
+}
+
+impl FoodGenerator {
+    pub fn new() -> FoodGenerator {
+        FoodGenerator { counter: 0, id: 0, pos: Point(0,0) }
     }
 }
+
+impl AI for FoodGenerator {
+    fn step(&mut self, b: &Screen, w: &mut World) -> BoardCommand {
+        if self.counter % 600 == 0 {
+            // generate random coords, if valid, spawn
+            // if not, try again next step
+            let (min, max) = b.get_dimensions();
+
+            let mut rng = rand::thread_rng();
+            let r_x = rng.gen_range(min.0..max.0 + 1);
+            let r_y = rng.gen_range(min.1..max.1 + 1);
+
+            return BoardCommand::SpawnFood(Point(r_x, r_y));
+        }
+        self.counter += 1;
+        BoardCommand::Noop
+    }
+}
+
+impl Renderable for FoodGenerator {
+    fn render(&self, b: &Screen) {}
+}

src/lib/screen.rs

@@ -47,6 +47,10 @@ impl Screen {
     pub fn render(&self, p: &Point, char: &str) {
         mvprintw(p.1 + self.center.1, p.0 + self.center.0, char);
     }
+
+    pub fn get_dimensions(&self) -> (Point, Point) {
+        (Point(-self.max_x, -self.max_y), Point(self.max_x, self.max_y))    
+    }
 }
 
 #[test]
@@ -75,6 +79,7 @@ fn test_get_valid_movements_board() {
 pub enum BoardCommand {
     Dig(Point),
     LayEgg(Point, u32),
+    SpawnFood(Point),
     Hatch(u32, u32),
     Noop,
 }

src/lib/world.rs

@@ -1,12 +1,13 @@
 use crate::lib::screen::{Screen, BoardCommand};
 use crate::lib::point::Point;
-use crate::lib::entity::{Entities, Queen};
+use crate::lib::entity::{Entities, Queen, Egg, Ant, Food};
 use std::collections::HashSet;
 
 #[derive(Clone)]
 pub struct World {
     pub cleared: HashSet<Point>,
     pub occupied: HashSet<Point>,
+    pub food: HashSet<u32>
 }
 
 impl World {
@@ -14,6 +15,7 @@ impl World {
         World {
             cleared: HashSet::new(),
             occupied: HashSet::new(),
+            food: HashSet::new()
         }
     }
 
@@ -66,7 +68,8 @@ pub fn simulate(e: &mut Entities, w: &mut World, b: &mut Screen) {
                 w.clear(pos);
             }
             BoardCommand::LayEgg(pos, id) => {
-                e.add_egg(pos.0, pos.1, id);
+                let egg = Egg::new(pos.0, pos.1, id);
+                e.add_entity(&egg);
             }
             BoardCommand::Hatch(egg_id, queen_id) => {
                 let egg = e.data.remove(&egg_id);
@@ -75,7 +78,12 @@ pub fn simulate(e: &mut Entities, w: &mut World, b: &mut Screen) {
                 let q = e.data.get_mut(&queen_id).unwrap();
                 let queen: &mut Queen = q.downcast_mut::<Queen>().unwrap();
                 queen.egg_count -= 1;
-                e.add_ant(pos.0, pos.1);
+                let ant = Ant::new(pos.0, pos.1);
+                e.add_entity(&ant);
+            }
+            BoardCommand::SpawnFood(pos) => {
+                let food = Food::new(pos.0, pos.1);
+                e.add_entity(&food); 
             }
             BoardCommand::Noop => {}
         }

src/main.rs

@@ -17,14 +17,15 @@ mod lib {
 use lib::point::Point;
 use lib::screen::init_screen;
 use lib::world::{World, simulate, render};
-use lib::entity::Entities;
+use lib::entity::{Entities, Queen};
 
 fn main() {
     let mut board = init_screen(); 
     let mut world = World::new();
 
     let mut entities = Entities::new();
-    entities.add_queen(0,0);
+    let q = Queen::new(0,0);
+    entities.add_entity(&q);
 
     for i in -3..3 {
         for j in -3..3 {

tests/ai_test.rs

@@ -2,19 +2,23 @@ use antf::lib::screen::init_screen;
 use antf::lib::point::Point;
 use antf::lib::ai::AIGoal;
 use antf::lib::world::{World, simulate, render};
-use antf::lib::entity::{Entities, Ant};
+use antf::lib::entity::{Entities, Ant, FoodGenerator};
 
 use ncurses::*;
 use std::thread::sleep;
 use std::time;
 
+// make sure to run with --test-threads 1! otherwise output will be bugged
+
 #[test]
-fn test_astar() {
+fn test_reach_astar() {
     let mut board = init_screen(); 
     let mut world = World::new();
 
     let mut entities = Entities::new();
-    let id = entities.add_ant(0,0);
+    
+    let a = Ant::new(0,0);
+    let id = entities.add_entity(&a);
 
     let a = entities.data.get_mut(&id).unwrap();
     let ant: &mut Ant = a.downcast_mut::<Ant>().unwrap(); 
@@ -27,6 +31,26 @@ fn test_astar() {
         sleep(time::Duration::from_millis(100));
         refresh();
     }
+    clear();
     endwin();
 }
 
+#[test]
+fn test_foodgen() {
+    let mut board = init_screen(); 
+    let mut world = World::new();
+
+    let mut entities = Entities::new();
+    let fg = FoodGenerator::new();
+    entities.add_entity(&fg);
+
+    for _ in 0..60 {
+        // TODO: add way to break out of the loop by hitting a random key
+        simulate(&mut entities, &mut world, &mut board);
+        render(&entities, &world, &board);
+        sleep(time::Duration::from_millis(100));
+        refresh();
+    }
+    clear();
+    endwin();
+}