From 124c89cdeadc53457b016c9f8aa1ba3c4a1aa15d Mon Sep 17 00:00:00 2001
From: Justin Wernick <justin@worthe-it.co.za>
Date: Fri, 10 Apr 2020 22:49:52 +0200
Subject: Victory conditions

---
 src/state.rs | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 51 insertions(+), 9 deletions(-)

diff --git a/src/state.rs b/src/state.rs
index ca18f71..45e39eb 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -1,11 +1,20 @@
 use crate::command::Command;
 use crate::consts::*;
 
+pub enum GameStatus {
+    Continue,
+    PlayerOneWon,
+    PlayerTwoWon,
+    Draw, // Until I add score I guess
+}
+
 pub struct GameState {
+    status: GameStatus,
     players: [Player; 2],
     obstacles: Vec<Position>,
     powerup_oils: Vec<Position>,
     powerup_boosts: Vec<Position>,
+    finish_lines: Vec<Position>,
 }
 
 pub struct Player {
@@ -15,6 +24,7 @@ pub struct Player {
     boost_remaining: usize,
     oils: usize,
     boosts: usize,
+    finished: bool,
 }
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
@@ -29,6 +39,22 @@ impl GameState {
         self.do_command(1, &commands[1]);
         self.update_player_collisions();
         self.update_player_travel();
+
+        self.status = if self.players[0].finished && self.players[1].finished {
+            if self.players[0].speed > self.players[1].speed {
+                GameStatus::PlayerOneWon
+            } else if self.players[0].speed < self.players[1].speed {
+                GameStatus::PlayerTwoWon
+            } else {
+                GameStatus::Draw
+            }
+        } else if self.players[0].finished {
+            GameStatus::PlayerOneWon
+        } else if self.players[1].finished {
+            GameStatus::PlayerTwoWon
+        } else {
+            GameStatus::Continue
+        };
     }
 
     fn do_command(&mut self, player_index: usize, command: &Command) {
@@ -39,8 +65,8 @@ impl GameState {
             Nothing => {}
             Accelerate => self.players[player_index].accelerate(),
             Decelerate => self.players[player_index].decelerate(),
-            TurnLeft => self.players[player_index].turn(false),
-            TurnRight => self.players[player_index].turn(true),
+            TurnLeft => self.players[player_index].turn_left(),
+            TurnRight => self.players[player_index].turn_right(),
             UseBoost => self.players[player_index].boost(),
             UseOil => {
                 self.players[player_index].oils -= 1;
@@ -76,7 +102,12 @@ impl GameState {
 
     fn update_player_travel(&mut self) {
         for player in &mut self.players {
-            player.move_along(&self.obstacles, &self.powerup_oils, &self.powerup_boosts);
+            player.move_along(
+                &self.obstacles,
+                &self.powerup_oils,
+                &self.powerup_boosts,
+                &self.finish_lines,
+            );
         }
     }
 }
@@ -112,12 +143,12 @@ impl Player {
         self.boost_remaining = 0;
     }
 
-    fn turn(&mut self, right: bool) {
-        if right {
-            self.next_position.y = self.position.y + 1;
-        } else {
-            self.next_position.y = self.position.y - 1;
-        }
+    fn turn_left(&mut self) {
+        self.next_position.y = self.position.y - 1;
+    }
+
+    fn turn_right(&mut self) {
+        self.next_position.y = self.position.y + 1;
     }
 
     fn boost(&mut self) {
@@ -126,6 +157,13 @@ impl Player {
         self.boosts -= 1;
     }
 
+    fn tick_boost(&mut self) {
+        self.boost_remaining = self.boost_remaining.saturating_sub(1);
+        if self.boost_remaining == 0 && self.speed == SPEED_BOOST {
+            self.speed = SPEED_4;
+        }
+    }
+
     fn set_next_position_x(&mut self) {
         if self.position.y == self.next_position.y {
             self.next_position.x = self.position.x + self.speed;
@@ -144,6 +182,7 @@ impl Player {
         obstacles: &[Position],
         powerup_oils: &[Position],
         powerup_boosts: &[Position],
+        finish_lines: &[Position],
     ) {
         let start_x = if self.position.y == self.next_position.y {
             self.position.x + 1
@@ -164,6 +203,9 @@ impl Player {
             if powerup_boosts.contains(&position) {
                 self.boosts += 1;
             }
+            if finish_lines.contains(&position) {
+                self.finished = true;
+            }
         }
         self.position = self.next_position;
     }
-- 
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