From 6ef9f0300ed36c7583db996c8ce0f5ea87a96f11 Mon Sep 17 00:00:00 2001
From: Cracker64 <cracker642@gmail.com>
Date: Mon, 7 Mar 2011 00:32:04 -0500
Subject: [PATCH] check bounds for wind, causes some funny glitches though.

---
 src/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main.c b/src/main.c
index 78f4414fe..f16ba1c9d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -2417,7 +2417,7 @@ int main(int argc, char *argv[])
 						{
 							for (j=-bsy; j<=bsy; j++)
 								for (i=-bsx; i<=bsx; i++)
-									if ((CURRENT_BRUSH==CIRCLE_BRUSH && (pow(i,2))/(pow(bsx,2))+(pow(j,2))/(pow(bsy,2))<=1)||(CURRENT_BRUSH==SQUARE_BRUSH&&i*j<=bsy*bsx))
+									if (x+i>0 && y+j>0 && x+i<XRES && y+j<YRES && ((CURRENT_BRUSH==CIRCLE_BRUSH && (pow(i,2))/(pow(bsx,2))+(pow(j,2))/(pow(bsy,2))<=1)||(CURRENT_BRUSH==SQUARE_BRUSH&&i*j<=bsy*bsx)))
 									{
 										vx[(y+j)/CELL][(x+i)/CELL] += (x-lx)*0.01f;
 										vy[(y+j)/CELL][(x+i)/CELL] += (y-ly)*0.01f;