From 7018e46fac29ba41398dc49b069aa9aeaa37b04d Mon Sep 17 00:00:00 2001
From: Simon Robertshaw <simon@hardwired.org.uk>
Date: Sat, 18 Aug 2012 17:08:24 +0100
Subject: Remove disabled elements when simulating. Fix crash when kill_part is
 run on elements with invalid types


diff --git a/src/simulation/Simulation.cpp b/src/simulation/Simulation.cpp
index 1eb7ed9..ebc0fed 100644
--- a/src/simulation/Simulation.cpp
+++ b/src/simulation/Simulation.cpp
@@ -2477,7 +2477,7 @@ void Simulation::kill_part(int i)//kills particle number i
 	if (parts[i].type == PT_NONE)
 		return;
 
-	if(elementCount[parts[i].type] && parts[i].type)
+	if(parts[i].type > 0 && parts[i].type < PT_NUM && elementCount[parts[i].type] && parts[i].type)
 		elementCount[parts[i].type]--;
 	if (parts[i].type == PT_STKM)
 	{
@@ -3352,7 +3352,7 @@ void Simulation::update_particles_i(int start, int inc)
 		if (parts[i].type)
 		{
 			t = parts[i].type;
-			if (t<0 || t>=PT_NUM)
+			if (t<0 || t>=PT_NUM || !elements[i].Enabled)
 			{
 				kill_part(i);
 				continue;
@@ -4588,11 +4588,14 @@ Simulation::Simulation():
 	memcpy(platent, platentT, latentCount * sizeof(unsigned int));
 	free(platentT);
 	
-	elements = new Element[PT_NUM];
+	//elements = new Element[PT_NUM];
 	std::vector<Element> elementList = GetElements();
-	for(int i = 0; i < elementList.size(); i++)
+	for(int i = 0; i < PT_NUM; i++)
 	{
-		elements[i] = elementList[i];
+		if(i < elementList.size())
+			elements[i] = elementList[i];
+		else
+			elements[i] = Element_NONE();
 	}
 	
 	tools = GetTools();
diff --git a/src/simulation/Simulation.h b/src/simulation/Simulation.h
index 48e06d9..dad9e3e 100644
--- a/src/simulation/Simulation.h
+++ b/src/simulation/Simulation.h
@@ -20,11 +20,11 @@
 #include "WallType.h"
 #include "GOLMenu.h"
 #include "MenuSection.h"
+#include "elements/Element.h"
 
 #define CHANNELS ((int)(MAX_TEMP-73)/100+2)
 
 class Snapshot;
-class Element;
 class SimTool;
 class Brush;
 struct SimulationSample;
@@ -47,7 +47,8 @@ public:
 	Air * air;
 
 	std::vector<sign> signs;
-	Element * elements;
+	Element elements[PT_NUM];
+	//Element * elements;
 	std::vector<SimTool*> tools;
 	unsigned int * platent;
 	wall_type wtypes[UI_WALLCOUNT];
--
cgit v0.9.2-21-gd62e