From 1d8b33d7ae4b3b44cad6820f795cb79338c1f73d Mon Sep 17 00:00:00 2001
From: Thomas Harte <thomas.harte@gmail.com>
Date: Mon, 13 May 2024 22:26:36 -0400
Subject: [PATCH] Attempt to improve trajectory.

---
 Machines/Acorn/Archimedes/Archimedes.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Machines/Acorn/Archimedes/Archimedes.cpp b/Machines/Acorn/Archimedes/Archimedes.cpp
index 25156ebc0..18e06df62 100644
--- a/Machines/Acorn/Archimedes/Archimedes.cpp
+++ b/Machines/Acorn/Archimedes/Archimedes.cpp
@@ -322,10 +322,10 @@ class ConcreteMachine:
 
 						if(abs(y_diff) > MaxStep || abs(x_diff) > MaxStep) {
 							if(abs(y_diff) > abs(x_diff)) {
-								x_diff = (x_diff * MaxStep + abs(y_diff) - 1) / abs(y_diff);
+								x_diff = (x_diff * MaxStep + (abs(y_diff) >> 1)) / abs(y_diff);
 								y_diff = std::clamp(y_diff, -MaxStep, MaxStep);
 							} else {
-								y_diff = (y_diff * MaxStep + abs(x_diff) - 1) / abs(x_diff);
+								y_diff = (y_diff * MaxStep + (abs(x_diff) >> 1)) / abs(x_diff);
 								x_diff = std::clamp(x_diff, -MaxStep, MaxStep);
 							}
 						}