/* * 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);