pelya
64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
//Copyright Paul Reiche, Fred Ford. 1992-2002
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef _COLLIDE_H
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#define _COLLIDE_H
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#include "element.h"
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#define COLLISION_TURN_WAIT 1
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#define COLLISION_THRUST_WAIT 3
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#define SKIP_COLLISION (NONSOLID | DISAPPEARING)
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#define CollidingElement(e) \
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(!((e)->state_flags & SKIP_COLLISION))
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#define CollisionPossible(e0,e1) \
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(CollidingElement (e0) \
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&& (!(((e1)->state_flags & (e0)->state_flags) & COLLISION) \
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&& ((!(((e1)->state_flags & (e0)->state_flags) & IGNORE_SIMILAR) \
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|| (e1)->pParent != (e0)->pParent)) \
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&& ((e1)->mass_points || (e0)->mass_points)))
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#define InitIntersectStartPoint(eptr) \
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{ \
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(eptr)->IntersectControl.IntersectStamp.origin.x = \
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WORLD_TO_DISPLAY ((eptr)->current.location.x); \
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(eptr)->IntersectControl.IntersectStamp.origin.y = \
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WORLD_TO_DISPLAY ((eptr)->current.location.y); \
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}
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#define InitIntersectEndPoint(eptr) \
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{ \
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(eptr)->IntersectControl.EndPoint.x = \
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WORLD_TO_DISPLAY ((eptr)->next.location.x); \
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(eptr)->IntersectControl.EndPoint.y = \
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WORLD_TO_DISPLAY ((eptr)->next.location.y); \
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}
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#define InitIntersectFrame(eptr) \
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{ \
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(eptr)->IntersectControl.IntersectStamp.frame = \
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SetEquFrameIndex ((eptr)->next.image.farray[0], \
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(eptr)->next.image.frame); \
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}
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extern void collide (ELEMENT *ElementPtr0, ELEMENT *ElementPtr1);
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#endif /* _COLLIDE_H */
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