Python Roguelike Help - Making Circular Rooms

Hi there!

I've been making games for a while with free non-programmy tools (Construct and the like) and wanted to move to programming, but NOT right into C++ since I don't have any experience and want to learn an easier language first.

Other than general reading and some books I bought, my first project was going through this Python Libtcod tutorial, coding everything by hand (no copy pasting) and resolving all the errors. I've gotten through it, and made some changes of my own and am looking to expand this project and make it my own. Here's the tutorial:

Python Libtcod Tutorial

One change I've wanted to make is to come up with circular rooms instead of square rooms that every roguelike seems to use.

This tutorial uses a list called "map" to store what tiles are what. My first thought was to use two loops, one for the left side of the circle and one for the right, and have them go through the map object at the appropriate coordinates and change the tiles to not be blocked. It would shift down each time this happened, creating a circle

I've read more threads on Stack Overflow then I can remember and a whole bunch of the Python Documentation but wasn't able to find a way to do this. There is also a python libtcod forum, which seems to be all but abandoned.

The best I've managed to come up with is a cross and 4 lines connecting each arm of the cross so I have an outline of a circle(it looks more like a diamond actually.) But I still have 4 crops of blocked tiles, and worse my methods seem cumbersome and the one to draw the outline has a gazillion variables.


Here's a few things to hopefully make this easier

Circle is a class with x1,y1,x2,y2 and r attributes.

x,y and r are randomly generated.

x1 and y1 represent the top corner (think of it like a rectangle), and x2 and y2 the bottom right corner.

R represents "radius" or how big I want the circle to be.



Code for the "cross":

if room_type == Circ:
		
	#start the circle by making a giant cross
		for x in range(room.x1, room.x2):
			map[x][room.y1+room.r].blocked = False
			map[x][room.y1+room.r].block_sight = False
		for y in range(room.y1, room.y2):
			map[room.x1+room.r][y].blocked = False
			map[room.x1][y].block_sight = False
		

Code for the outline:

	count = room.r 
		r2 =room.x1 + room.r 
		r3 = room.x2 - room.r
		r4 = room.x2 
		r5 = room.x1
		roomy1 = room.y1
		roomy2 = room.y1 +room.r
		roomy3 = room.y1
		roomy4 = room.y1 + room.r
		roomy5 = room.y1 + room.r
		roomy6 = room.y2
		roomy7 = room.y1 + room.r
		roomy8 = room.y2
		while (count > 0):
			
			for y in range(roomy1, roomy2):
				map[r2][y].blocked = False
				map[r2][y].block_sight = False
				roomy1 = roomy1-1
				roomy2 = roomy2-1
				r2 = r2 - 1
				count = count - 1
				
			
			for y in range(roomy3, roomy4):
				map[r3][y].blocked = False
				map[r3][y].block_sight = False
				r3 = r3 +1
				roomy3 = roomy3-1
				roomy4 = roomy4-1
				
			
			for y in range(roomy5, roomy6):
				map[r4][y].blocked = False
				map[r4][y].block_sight = False
				r4 = r4 -1
				roomy5 = roomy5+1
				roomy6 = roomy6+1
				
			for y in range(roomy7,roomy8):
				map[r5][y].blocked = False
				map[r5][y].blocked = False
				r5 = r5+1
				roomy7 =roomy7 + 1
				roomy8 = roomy8 +1
	

I know it's awful code, so as well as helping me with my problem, any tips or good sites to read are also much appreciated!