From 3ee74cdb1b4fd2bf9eefdf6bcd8439b27cbb7336 Mon Sep 17 00:00:00 2001
From: cflip <cflip@cflip.net>
Date: Fri, 1 Apr 2022 21:23:01 -0600
Subject: Add a game timer

This adds a delta time that ensures that everything moves at the same
speed regardless of framerate or system.
---
 src/train.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/train.cpp')

diff --git a/src/train.cpp b/src/train.cpp
index 43ebe8a..8507af0 100644
--- a/src/train.cpp
+++ b/src/train.cpp
@@ -7,7 +7,7 @@
 
 static const Bitmap SPRITES("res/car.png");
 
-void Train::update()
+void Train::update(float deltaTime)
 {
 	if (m_next) {
 		m_speed = m_next->m_speed;
@@ -20,7 +20,7 @@ void Train::update()
 
 	m_speed *= m_acceleration;
 	if (m_progress < 1.f) {
-		m_progress += m_speed;
+		m_progress += m_speed * deltaTime;
 		return;
 	}
 
-- 
cgit v1.2.3