From 7baa6cde8a4f6db03356fa692f0afbd992013e6b Mon Sep 17 00:00:00 2001
From: tom barrett <spalf0@gmail.com>
Date: Mon, 22 Jul 2019 02:35:27 -0500
Subject: wandering enabled

---
 src/npc.rs | 78 ++++++++++++++++++++++++++++++++++++--------------------------
 1 file changed, 46 insertions(+), 32 deletions(-)

(limited to 'src/npc.rs')

diff --git a/src/npc.rs b/src/npc.rs
index 316908b..ad2a750 100644
--- a/src/npc.rs
+++ b/src/npc.rs
@@ -1,10 +1,12 @@
 use ggez::graphics::spritebatch::SpriteBatch;
-use ggez::nalgebra::Point2;
+use ggez::nalgebra::{distance, Point2};
 use rand::Rng;
 use std::f32::consts::PI;
+use std::time::Instant;
 
 use crate::animations::Animations;
-use crate::entity::{Entity, Operable};
+use crate::constants;
+use crate::entity::{Action, Entity, Operable};
 use crate::map::Map;
 use crate::tileset::Tileset;
 
@@ -21,12 +23,11 @@ impl Operable for NPC {
     }
 
     fn update(&mut self) {
-        /*
         match self.behavior {
             Behavior::Wandering(destination) => self.wandering(destination),
-            Behavior::Waiting(time) => (),
+            Behavior::Waiting(time) => self.waiting(time),
         }
-        */
+        self.entity.update();
         self.animations.update(&self.entity.action);
     }
 }
@@ -35,39 +36,52 @@ impl NPC {
     pub fn new(tileset: &Tileset, spawn: Point2<f32>, map_dimensions: (f32, f32)) -> NPC {
         NPC {
             entity: Entity::new(spawn, map_dimensions),
-            behavior: Behavior::Wandering(None),
+            behavior: Behavior::Wandering(random_nearby_point(spawn, constants::WANDER_DISTANCE)),
             animations: Animations::new(tileset),
         }
     }
 
-    /*fn wandering(&mut self, destination: Option<Point2<f32>>) {
-        match destination {
-            Some(destination) => {
-                if distance(&self.position, &destination) < constants::GOAL_DISTANCE {
-                    self.behavior = Behavior::Waiting(Instant::now())
-                } else {
-                    if self.position.x < destination.x {
-                        self.position.x += constants::ENTITY_SPEED;
-                    } else {
-                        self.position.x -= constants::ENTITY_SPEED;
-                    }
-                    if self.position.y < destination.y {
-                        self.position.y += constants::ENTITY_SPEED;
-                    } else {
-                        self.position.y -= constants::ENTITY_SPEED;
-                    }
-                }
+    fn wandering(&mut self, destination: Point2<f32>) {
+        let position = self.entity.position;
+
+        if distance(&position, &destination) < constants::GOAL_DISTANCE {
+            self.entity.action = Action::IdleRight;
+            self.behavior = Behavior::Waiting(Instant::now());
+        } else if (position.x - destination.x).abs() < constants::GOAL_DISTANCE {
+            if position.y > destination.y {
+                self.entity.action = Action::MovingUp;
+            } else {
+                self.entity.action = Action::MovingDown;
+            }
+        } else if (position.y - destination.y).abs() < constants::GOAL_DISTANCE {
+            if position.x > destination.x {
+                self.entity.action = Action::MovingLeft;
+            } else {
+                self.entity.action = Action::MovingRight;
+            }
+        } else if position.x > destination.x {
+            if position.y > destination.y {
+                self.entity.action = Action::MovingUpLeft;
+            } else {
+                self.entity.action = Action::MovingDownLeft;
             }
-            None => {
-                self.behavior = Behavior::Wandering(Some(random_nearby_point(
-                    self.spawn,
-                    constants::WANDER_DISTANCE,
-                )))
+        } else if position.x < destination.x {
+            if position.y > destination.y {
+                self.entity.action = Action::MovingUpRight;
+            } else {
+                self.entity.action = Action::MovingDownRight;
             }
         }
-    }*/
+    }
 
-    //fn waiting(&mut self) {}
+    fn waiting(&mut self, start: Instant) {
+        if start.elapsed().as_secs() > constants::WAIT_TIME {
+            self.behavior = Behavior::Wandering(random_nearby_point(
+                self.entity.spawn,
+                constants::WANDER_DISTANCE,
+            ));
+        }
+    }
 
     pub fn build_npcs(tileset: &Tileset, map: &Map) -> Vec<NPC> {
         let mut npcs = Vec::new();
@@ -82,8 +96,8 @@ impl NPC {
 
 #[derive(Clone)]
 enum Behavior {
-    //Waiting(Instant),
-    Wandering(Option<Point2<f32>>),
+    Waiting(Instant),
+    Wandering(Point2<f32>),
 }
 
 pub fn random_nearby_point(origin: Point2<f32>, within_radius: f32) -> Point2<f32> {
-- 
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