From ce857ea46ea291010599de7c27987d16cd30952d Mon Sep 17 00:00:00 2001
From: Damian Roszczyk <34535631+buensons@users.noreply.github.com>
Date: Sat, 31 Mar 2018 23:39:39 -0700
Subject: [PATCH 1/3] Update bird.js

Implement gravity
---
 bird.js | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/bird.js b/bird.js
index f6e1098..ad86923 100644
--- a/bird.js
+++ b/bird.js
@@ -12,7 +12,7 @@ class Bird {
     this.x = 64;
 
     this.gravity = 0.6;
-    this.lift = -15;
+    this.delay = 0;
     this.velocity = 0;
 
     this.icon = birdSprite;
@@ -26,12 +26,17 @@ class Bird {
   }
 
   up() {
-    this.velocity += this.lift;
+    if (this.delay > 0)
+        this.delay--;
+
+    if (this.delay <= 0) {
+        this.velocity = -7;
+        this.delay = 1;
+    }
   }
 
   update() {
     this.velocity += this.gravity;
-    this.velocity *= 0.9;
     this.y += this.velocity;
 
     if (this.y >= height - this.height / 2) {

From acef9abffc36f5f91bd48a80ffa9cf9a7eecc889 Mon Sep 17 00:00:00 2001
From: Damian Roszczyk <34535631+buensons@users.noreply.github.com>
Date: Mon, 2 Apr 2018 14:22:38 -0700
Subject: [PATCH 2/3] make delay a boolean

---
 bird.js | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/bird.js b/bird.js
index ad86923..0a2e377 100644
--- a/bird.js
+++ b/bird.js
@@ -12,7 +12,7 @@ class Bird {
     this.x = 64;
 
     this.gravity = 0.6;
-    this.delay = 0;
+    this.delay = false;
     this.velocity = 0;
 
     this.icon = birdSprite;
@@ -26,12 +26,12 @@ class Bird {
   }
 
   up() {
-    if (this.delay > 0)
-        this.delay--;
+    if (this.delay)
+        this.delay = false;
 
-    if (this.delay <= 0) {
+    if (!this.delay) {
         this.velocity = -7;
-        this.delay = 1;
+        this.delay = true;
     }
   }
 

From 58d149fa95dc357435bccbd1b983e3c70910d068 Mon Sep 17 00:00:00 2001
From: Damian Roszczyk <34535631+buensons@users.noreply.github.com>
Date: Tue, 3 Apr 2018 11:16:54 -0700
Subject: [PATCH 3/3] Update bird.js

---
 bird.js | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/bird.js b/bird.js
index 0a2e377..ee6f071 100644
--- a/bird.js
+++ b/bird.js
@@ -12,7 +12,7 @@ class Bird {
     this.x = 64;
 
     this.gravity = 0.6;
-    this.delay = false;
+    this.lift = -7;
     this.velocity = 0;
 
     this.icon = birdSprite;
@@ -26,13 +26,7 @@ class Bird {
   }
 
   up() {
-    if (this.delay)
-        this.delay = false;
-
-    if (!this.delay) {
-        this.velocity = -7;
-        this.delay = true;
-    }
+        this.velocity = this.lift;
   }
 
   update() {