From 1266307070b6fc8d234e90744c436253399d9f24 Mon Sep 17 00:00:00 2001
From: mniip <mniip@mniip.com>
Date: Thu, 30 Jan 2014 22:55:55 +0400
Subject: [PATCH] stop neut from dragging particles inside energy walls, fixes
 jacob#18

---
 src/simulation/Simulation.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/simulation/Simulation.cpp b/src/simulation/Simulation.cpp
index cee906873..01d6c5c57 100644
--- a/src/simulation/Simulation.cpp
+++ b/src/simulation/Simulation.cpp
@@ -2345,6 +2345,8 @@ int Simulation::try_move(int i, int x, int y, int nx, int ny)
 			if (s && !(elements[s&0xFF].Properties&PROP_NEUTPENETRATE))
 				return 1; // if the element currently underneath neutron isn't NEUTPENETRATE, don't move anything except the neutron
 			// if nothing is currently underneath neutron, only move target particle
+			if(bmap[y/CELL][x/CELL] == WL_ALLOWENERGY)
+				return 1; // do not drag target particle into an energy only wall
 			if (s)
 			{
 				pmap[ny][nx] = (s&~(0xFF))|parts[s>>8].type;