From aed9ad18c72c016da7894328710e9996c5629c0a Mon Sep 17 00:00:00 2001
From: Tom Barrett <tombarrett@siu.edu>
Date: Thu, 23 Nov 2017 04:35:03 -0600
Subject: -added giving a destination to units

---
 src/character.rs | 47 ++++++++++++++++++++++++++---------------------
 src/list.rs      |  6 ++++++
 src/main.rs      | 20 +++++++++++++-------
 3 files changed, 45 insertions(+), 28 deletions(-)

(limited to 'src')

diff --git a/src/character.rs b/src/character.rs
index c8101f5..e2e2af0 100644
--- a/src/character.rs
+++ b/src/character.rs
@@ -23,10 +23,10 @@ impl Character {
         Character {
             symbol              : symbol,
             color               : color,
-            order               : Orders::Move as u8,
+            order               : Orders::Wander as u8,
             location            : location,
-            desired_location    : Some(Location(200,200)),
             needs_path          : false,
+            desired_location    : None,
             path                : None,
         }
     }
@@ -37,16 +37,38 @@ impl Character {
             self.wander(free_spaces);
         }
         else if self.order == Orders::Move as u8 {
-            self.move_toward_desired(free_spaces);
+            self.move_along_path(free_spaces);
         }
     }
 
+    pub fn calculate_path(&mut self, impassable : Vec<(Location, usize)>) {
+        match self.desired_location {
+            None => self.order = Orders::Wander as u8,
+            Some(target) => {
+                let location = self.location;
+                let result = astar(&location,
+                                       |l| l.neighbours(impassable.clone()),
+                                       |l| l.distance(&target),
+                                       |l| *l == target);
+                let mut result = result.expect("No way to get to target.").0;
+                result.reverse();
+                result.pop();
+                self.path = Some(result);
+            }
+        }
+    }
+
+    pub fn give_destination(&mut self, destination : Location) {
+        self.desired_location = Some(destination);
+        self.order = Orders::Move as u8;
+    }
+
     fn wander(&mut self, free_spaces : Vec<(Location, usize)>) {
         let direction = rand::thread_rng().gen_range(0, free_spaces.len());
         self.location = free_spaces[direction].0;
     }
 
-    fn move_toward_desired(&mut self, free_spaces : Vec<(Location, usize)>) {
+    fn move_along_path(&mut self, free_spaces : Vec<(Location, usize)>) {
         let mut moved = false;
         match self.path {
             None => self.needs_path = true,
@@ -71,21 +93,4 @@ impl Character {
             self.path = None;
         }
     }
-
-    pub fn calculate_path(&mut self, impassable : Vec<(Location, usize)>) {
-        match self.desired_location {
-            None => (),
-            Some(target) => {
-                let location = self.location;
-                let result = astar(&location,
-                                       |l| l.neighbours(impassable.clone()),
-                                       |l| l.distance(&target),
-                                       |l| *l == target);
-                let mut result = result.expect("zz").0;
-                result.reverse();
-                result.pop();
-                self.path = Some(result);
-            }
-        }
-    }
 }
diff --git a/src/list.rs b/src/list.rs
index a429ab2..c22c229 100644
--- a/src/list.rs
+++ b/src/list.rs
@@ -34,6 +34,12 @@ impl List {
         }
     }
 
+    pub fn give_destination(&mut self, destination : Location) {
+        for i in 0..self.men.len() {
+            self.men[i].give_destination(destination)
+        }
+    }
+
     fn get_free_locations(&mut self, location : Location) -> Vec<(Location, usize)> {
         let mut potential_locations = location.neighbours(Vec::new());
 
diff --git a/src/main.rs b/src/main.rs
index 7044467..f847253 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -41,18 +41,24 @@ fn main() {
     let mut list = List::new(map.impassable.to_vec());
 
     loop{
-        match main.getch() {
+        let order = match main.getch() {
             Some(Input::Character(c)) => {
                 match c {
-                    'h' => cursor.location.1 -= 1,
-                    'l' => cursor.location.1 += 1,
-                    'k' => cursor.location.0 -= 1,
-                    'j' => cursor.location.0 += 1,
+                    'h' => {cursor.location.1 -= 1; None}
+                    'l' => {cursor.location.1 += 1; None}
+                    'k' => {cursor.location.0 -= 1; None}
+                    'j' => {cursor.location.0 += 1; None}
                     'q' => break,
-                    _ => (),
+                    'o' => Some(cursor.location),
+                    _ => None,
                 }
             },
-            _ => ()
+            _ => None
+        };
+
+        match order {
+            None => (),
+            Some(location) => (list.give_destination(location)),
         }
 
         list.action();
-- 
cgit v1.2.3