note
	description: "[
		vertex_t from r_defs.h
		
		Your plain vanilla vertex.
		Note: transformed values not buffered locally,
		like some DOOM-alikes ("wt", "WebView") did.
	]"
	license: "[
				Copyright (C) 1993-1996 by id Software, Inc.
				Copyright (C) 2005-2014 Simon Howard
				Copyright (C) 2021 Ilgiz Mustafin
		
				This program is free software; you can redistribute it and/or modify
				it under the terms of the GNU General Public License as published by
				the Free Software Foundation; either version 2 of the License, or
				(at your option) any later version.
		
				This program is distributed in the hope that it will be useful,
				but WITHOUT ANY WARRANTY; without even the implied warranty of
				MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
				GNU General Public License for more details.
		
				You should have received a copy of the GNU General Public License along
				with this program; if not, write to the Free Software Foundation, Inc.,
				51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
	]"

class 
	VERTEX_T

create 
	default_create,
	from_pointer

feature 

	x: FIXED_T

	y: FIXED_T
	
feature 

	from_pointer (m: MANAGED_POINTER; offset: INTEGER_32)
		do
			x := create {FIXED_T}.from_integer (m.read_integer_16_le (0 + offset).to_integer_32 |<< {M_FIXED}.fracbits)
			y := create {FIXED_T}.from_integer (m.read_integer_16_le (2 + offset).to_integer_32 |<< {M_FIXED}.fracbits)
		end

	Structure_size: INTEGER_32 = 4
			-- sizeof(mapvertex_t)
	
end -- class VERTEX_T

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