feat(entity): Entity state, queues (#5)

* feat(entity): entity actions queue, state machine

* chore(entity): cago fmt

* remove useless functions

* cargo fmt

* Rename EntityCommand to EntityAction

.gitignore

@@ -1,4 +1,4 @@
 target
 Cargo.lock
-.idea
-logs/
+.idea/
+logs/

bdi_game/src/simulation/entity.rs

@@ -0,0 +1,23 @@
+use super::entity_actions_queue::EntityAction;
+use super::entity_actions_queue::EntityActionsQueue;
+use super::entity_state::EntityState;
+use super::grid::GridPoint;
+
+pub struct Entity {
+    pub position: GridPoint,
+    pub actions: EntityActionsQueue,
+    pub state: EntityState,
+}
+
+impl Entity {
+    pub fn new(position: GridPoint) -> Entity {
+        Entity {
+            position,
+            actions: EntityActionsQueue::new(),
+            state: EntityState::Idle,
+        }
+    }
+    pub fn add_action(&mut self, action: EntityAction) {
+        self.actions.push_back(action);
+    }
+}

bdi_game/src/simulation/entity_actions_queue.rs

@@ -0,0 +1,7 @@
+use super::grid::GridPoint;
+use std::collections::VecDeque;
+pub enum EntityAction {
+    GoTo { destination: GridPoint },
+}
+
+pub type EntityActionsQueue = VecDeque<EntityAction>;

bdi_game/src/simulation/entity_state.rs

@@ -0,0 +1,5 @@
+#[derive(PartialEq, Copy, Clone, Debug)]
+pub enum EntityState {
+    Idle,
+    Moving,
+}

bdi_game/src/simulation/mod.rs

@@ -1,3 +1,6 @@
+pub mod entity;
+pub mod entity_actions_queue;
+pub mod entity_state;
 pub mod grid;
 pub mod simulation;
 pub mod world_grid;