From c9ec19c3cd15ed666138b11cd12c9efc036cb3b9 Mon Sep 17 00:00:00 2001
From: Bill Thiede <git@xinu.tv>
Date: Thu, 24 Jun 2021 16:43:12 -0700
Subject: [PATCH] eoc2: update with initial values from the book.

---
 rtchallenge/examples/eoc2.rs | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/rtchallenge/examples/eoc2.rs b/rtchallenge/examples/eoc2.rs
index 885af1f..a40b12f 100644
--- a/rtchallenge/examples/eoc2.rs
+++ b/rtchallenge/examples/eoc2.rs
@@ -35,14 +35,12 @@ fn draw_dot(c: &mut Canvas, x: usize, y: usize) {
     c.set(x + 1, y + 1, red);
 }
 fn main() -> Result<()> {
-    let mut p = Projectile {
-        position: point(0., 1., 0.),
-        velocity: 10. * vector(1., 2., 0.).normalize(),
-    };
-    let e = Environment {
-        gravity: vector(0., -0.1, 0.),
-        wind: vector(-0.01, 0., 0.),
-    };
+    let position = point(0., 1., 0.);
+    let velocity = vector(1., 1.8, 0.).normalize() * 11.25;
+    let mut p = Projectile { position, velocity };
+    let gravity = vector(0., -0.1, 0.);
+    let wind = vector(-0.01, 0., 0.);
+    let e = Environment { gravity, wind };
 
     let w = 800;
     let h = 600;