From 1ceacd913d14e10cc6876a2eea82580b58549d3d Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Sat, 6 Oct 2012 21:27:55 -0400
Subject: [PATCH] Shots keep track of their launch time

---
 src/common/Shot.cc | 3 ++-
 src/common/Shot.h  | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/common/Shot.cc b/src/common/Shot.cc
index 1b2f1c2..763bde4 100644
--- a/src/common/Shot.cc
+++ b/src/common/Shot.cc
@@ -44,8 +44,9 @@ Shot::Shot(const Vector2f & origin, double direction, double target_dist)
         / (2 * t * GRAVITY);
 }
 
-Vector3f Shot::get_pos_at_time(double time)
+Vector3f Shot::get_position()
 {
+    float time = m_clock.getElapsedTime().asSeconds();
     float horiz_dist = m_speed * time;
     float z = INITIAL_SHOT_HEIGHT + m_speed * time - GRAVITY * time * time / 2.0;
     Vector2f xy = m_direction * horiz_dist;
diff --git a/src/common/Shot.h b/src/common/Shot.h
index 5421351..f70dbc7 100644
--- a/src/common/Shot.h
+++ b/src/common/Shot.h
@@ -8,11 +8,12 @@ class Shot
 {
     public:
         Shot(const sf::Vector2f & origin, double direction, double target_dist);
-        sf::Vector3f get_pos_at_time(double time);
+        sf::Vector3f get_position();
     protected:
         sf::Vector2f m_origin;
         sf::Vector2f m_direction;
         double m_speed;
+        sf::Clock m_clock;
 };
 
 #endif