project_files/HedgewarsMobile/Classes/CGPointUtils.h
author unc0rr
Sun, 02 Dec 2012 01:25:11 +0400 (2012-12-01)
changeset 8178 8bd087478b48
parent 6908 896ed2afcfb8
child 10108 c68cf030eded
permissions -rw-r--r--
Fix QSettings problems: - Reopen file in ReadOnly mode if it was open in ReadWrite mode and is being read. This is needed for stupid QSettings which opens file in ReadWrite mode just to call readAll() on it. - Implement setSize(0)
/*
 * Hedgewars-iOS, a Hedgewars port for iOS devices
 * Copyright (c) 2009-2012 Vittorio Giovara <vittorio.giovara@gmail.com>
 *
 * 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; version 2 of the License
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */


#include <CoreGraphics/CoreGraphics.h>


#define degreesToRadians(x) ( M_PI * x / 180.0)
#define radiansToDegrees(x) (180.0 * x / M_PI )

#define HWX(x) (int)(x-screen.size.width/2)/HW_zoomFactor()
#define HWY(x) (int)(screen.size.height-x)/HW_zoomFactor()+(IS_IPAD()?40:17.5)*HW_zoomLevel()/HW_zoomFactor()

#define HWXZ(x) (int)(x-screen.size.width/2)
#define HWYZ(x) (int)(screen.size.height-x)

CGFloat distanceBetweenPoints (CGPoint first, CGPoint second);
CGFloat angleBetweenPoints(CGPoint first, CGPoint second);
CGFloat angleBetweenLines(CGPoint line1Start, CGPoint line1End, CGPoint line2Start, CGPoint line2End);

CGFloat CGPointDot(CGPoint a, CGPoint b);
CGFloat CGPointLen(CGPoint a);
CGPoint CGPointSub(CGPoint a, CGPoint b);
CGFloat CGPointDist(CGPoint a, CGPoint b);
CGPoint CGPointNorm(CGPoint a);