From d3452b01c8aad35e6d55523323247eeb114dc7d1 Mon Sep 17 00:00:00 2001
From: Cate <cate@cate-6sh2.(none)>
Date: Tue, 12 Jul 2011 11:28:33 -0400
Subject: [PATCH] OMG FIXES. Lots of fixes for triangle brush to make sure it
 works, from Cracker. Edited CLST to prevent "popcorning" when its float hits
 weird numbers. Also fixed it so it freezes nicely when cooled. Fingers are
 back! :DDD

---
 src/elements/clst.c | 11 ++++++++++-
 src/graphics.c      | 13 +++++++------
 src/main.c          |  4 ++--
 src/powder.c        |  3 +++
 4 files changed, 22 insertions(+), 9 deletions(-)

diff --git a/src/elements/clst.c b/src/elements/clst.c
index db0eb7c78..15b5624c7 100644
--- a/src/elements/clst.c
+++ b/src/elements/clst.c
@@ -16,7 +16,16 @@ int update_CLST(UPDATE_FUNC_ARGS) {
 				}
 				if ((r&0xFF)==PT_CLST)
 				{
-					parts[i].vx += 0.01*rx; parts[i].vy += 0.01*ry;
+					if(parts[i].temp <195)
+						cxy = 0.05;
+					if(parts[i].temp >= 195 && parts[i].temp <295)
+						cxy = 0.015;
+					if(parts[i].temp >= 295 && parts[i].temp <350)
+						cxy = 0.01;
+					if(parts[i].temp > 350)
+						cxy = 0.005;
+					parts[i].vx += cxy*rx;
+					parts[i].vy += cxy*ry;//These two can be set not to calculate over 350 later. They do virtually nothing over 0.005.
 				}
 			}
 	return 0;
diff --git a/src/graphics.c b/src/graphics.c
index 2013de604..40f57c168 100644
--- a/src/graphics.c
+++ b/src/graphics.c
@@ -4247,13 +4247,14 @@ void render_cursor(pixel *vid, int x, int y, int t, int rx, int ry)
 					}
 		}
 		else if (CURRENT_BRUSH==TRI_BRUSH)
-		{
+ 		{
 			for (j=-ry; j<=ry; j++)
-				for (i=-rx; i<=rx; i++)
-					if ((j <= ry ) && ( j >= (((-2.0*ry)/rx)*i) -ry) && ( j >= (((-2.0*ry)/(-rx))*i)-ry ) && (j+1>ry || (j-1 < (((-2.0*ry)/rx)*i) -ry) || ( j-1 < (((-2.0*ry)/(-rx))*i)-ry )) )
-					{
-						xor_pixel(x+i, y+j, vid);
-					}
+			for (i=-rx; i<=0; i++)
+			if ((j <= ry ) && ( j >= (((-2.0*ry)/(rx))*i)-ry ) && (j+1>ry || ( j-1 < (((-2.0*ry)/(rx))*i)-ry )) )
+				{
+					xor_pixel(x+i, y+j, vid);
+					if (i) xor_pixel(x-i, y+j, vid);
+				}
 		}
 
 	}
diff --git a/src/main.c b/src/main.c
index 9d6846509..075cab0da 100644
--- a/src/main.c
+++ b/src/main.c
@@ -3055,7 +3055,7 @@ int main(int argc, char *argv[])
 						{
 							for (j=-bsy; j<=bsy; j++)
 								for (i=-bsx; i<=bsx; i++)
-									if (lx+i>=0 && ly+j>=0 && lx+i<XRES && ly+j<YRES && ((CURRENT_BRUSH==CIRCLE_BRUSH && pow(i,2)*pow(bsy,2)+pow(j,2)*pow(bsx,2)<=pow(bsx,2)*pow(bsy,2))||(CURRENT_BRUSH==SQUARE_BRUSH&&i*j<=bsy*bsx)))
+									if (x+i>0 && y+j>0 && x+i<XRES && y+j<YRES && InCurrentBrush(i,j,bsx,bsy))
 									{
 										vx[(ly+j)/CELL][(lx+i)/CELL] += (line_x-lx)*0.002f;
 										vy[(ly+j)/CELL][(lx+i)/CELL] += (line_y-ly)*0.002f;
@@ -3075,7 +3075,7 @@ int main(int argc, char *argv[])
 						{
 							for (j=-bsy; j<=bsy; j++)
 								for (i=-bsx; i<=bsx; i++)
-									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)))
+									if (x+i>0 && y+j>0 && x+i<XRES && y+j<YRES && InCurrentBrush(i,j,bsx,bsy))
 									{
 										vx[(y+j)/CELL][(x+i)/CELL] += (x-lx)*0.01f;
 										vy[(y+j)/CELL][(x+i)/CELL] += (y-ly)*0.01f;
diff --git a/src/powder.c b/src/powder.c
index 6bce79055..f83c79008 100644
--- a/src/powder.c
+++ b/src/powder.c
@@ -2791,6 +2791,9 @@ int InCurrentBrush(int i, int j, int rx, int ry)
 		case TRI_BRUSH:
 			return (j <= ry ) && ( j >= (((-2.0*ry)/rx)*i) -ry) && ( j >= (((-2.0*ry)/(-rx))*i)-ry ) ;
 			break;
+		default:
+			return 0;
+			break;
 	}
 }
 void create_line(int x1, int y1, int x2, int y2, int rx, int ry, int c)