From 2feb1d98b3d925f78fa196961019344be37873a8 Mon Sep 17 00:00:00 2001
From: Xevion <xevioni@yandex.com>
Date: Mon, 20 Apr 2020 21:43:07 -0500
Subject: [PATCH] add new debug config, create and implement FPSCounter class

---
 triple-dungeon/config.py |  3 +++
 triple-dungeon/main.py   | 28 ++++++++++++++++++++++++++--
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/triple-dungeon/config.py b/triple-dungeon/config.py
index 0b82a37..a395e94 100644
--- a/triple-dungeon/config.py
+++ b/triple-dungeon/config.py
@@ -42,6 +42,9 @@ class Config(object):
     BOTTOM_VIEWPORT_MARGIN = 50
     TOP_VIEWPORT_MARGIN = 100
 
+    # All debug statements and renderings should use this
+    DEBUG = True
+
 
 class Enums(Enum):
     """
diff --git a/triple-dungeon/main.py b/triple-dungeon/main.py
index ac5d45b..5c2b2a2 100644
--- a/triple-dungeon/main.py
+++ b/triple-dungeon/main.py
@@ -3,7 +3,9 @@ main.py
 The main class used to load the game.
 Holds the main game window, as well as manages basic functions for organizing the game.
 """
+import collections
 import random
+import time
 
 import arcade
 
@@ -12,6 +14,25 @@ from map import Dungeon
 from mobs import Player
 
 
+class FPSCounter:
+    def __init__(self):
+        self.time = time.perf_counter()
+        self.frame_times = collections.deque(maxlen=60)
+
+    def tick(self):
+        t1 = time.perf_counter()
+        dt = t1 - self.time
+        self.time = t1
+        self.frame_times.append(dt)
+
+    def get_fps(self):
+        total_time = sum(self.frame_times)
+        if total_time == 0:
+            return 0
+        else:
+            return len(self.frame_times) / sum(self.frame_times)
+
+
 class Game(arcade.Window):
     """
     Main application class.
@@ -45,9 +66,10 @@ class Game(arcade.Window):
         # Create the Sprite lists
 
         self.enemy_list = arcade.SpriteList()
+        self.fps = FPSCounter()
 
         # Create the dungeon
-        self.dungeon = Dungeon(0, 3)
+        self.dungeon = Dungeon(0, 5)
 
         # Set up the player, specifically placing it at these coordinates.
         self.player = Player()
@@ -74,7 +96,6 @@ class Game(arcade.Window):
     def on_draw(self):
         """ Render the screen. """
         try:
-
             # Clear the screen to the background color
             arcade.start_render()
 
@@ -86,6 +107,9 @@ class Game(arcade.Window):
             self.player.draw_hit_box()
             x, y = self.player.center_x, self.player.center_y
             arcade.draw_text(str((x, y)), x - 40, y + 50, arcade.color.WHITE, 15)
+            arcade.draw_text(f"FPS: {self.fps.get_fps():3.0f}", self.view_left + 50, self.view_bottom + 30,
+                             arcade.color.WHITE, 16)
+            self.fps.tick()
         except Exception:
             import traceback
             traceback.print_exc()