124 lines
2.4 KiB
Text
124 lines
2.4 KiB
Text
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file collisionSegment.I
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* @author drose
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* @date 2001-01-30
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*/
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/**
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* Creates an invalid segment. This isn't terribly useful; it's expected that
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* the user will subsequently adjust the segment via
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* set_origin()/set_direction() or set_from_lens().
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*/
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INLINE CollisionSegment::
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CollisionSegment() :
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_a(LPoint3(0.0, 0.0, 0.0)),
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_b(LPoint3(0.0, 0.0, 0.0))
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{
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}
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/**
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*
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*/
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INLINE CollisionSegment::
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CollisionSegment(const LPoint3 &a, const LPoint3 &b) :
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_a(a), _b(b)
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{
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nassertv(_a != _b);
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}
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/**
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*
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*/
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INLINE CollisionSegment::
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CollisionSegment(PN_stdfloat ax, PN_stdfloat ay, PN_stdfloat az,
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PN_stdfloat bx, PN_stdfloat by, PN_stdfloat bz) :
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_a(ax, ay, az), _b(bx, by, bz)
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{
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nassertv(_a != _b);
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}
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/**
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*
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*/
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INLINE CollisionSegment::
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CollisionSegment(const CollisionSegment ©) :
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CollisionSolid(copy),
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_a(copy._a),
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_b(copy._b)
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{
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}
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/**
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*
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*/
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INLINE void CollisionSegment::
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set_point_a(const LPoint3 &a) {
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_a = a;
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mark_internal_bounds_stale();
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mark_viz_stale();
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// We don't assert here that a != b, on the assumption that you might be
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// about to change both at once, and you'll probably start by changing a
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// first.
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}
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/**
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*
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*/
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INLINE void CollisionSegment::
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set_point_a(PN_stdfloat x, PN_stdfloat y, PN_stdfloat z) {
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set_point_a(LPoint3(x, y, z));
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}
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/**
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*
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*/
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INLINE const LPoint3 &CollisionSegment::
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get_point_a() const {
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return _a;
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}
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/**
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*
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*/
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INLINE void CollisionSegment::
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set_point_b(const LPoint3 &b) {
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_b = b;
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mark_internal_bounds_stale();
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mark_viz_stale();
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nassertv(_a != _b);
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}
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/**
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*
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*/
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INLINE void CollisionSegment::
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set_point_b(PN_stdfloat x, PN_stdfloat y, PN_stdfloat z) {
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set_point_b(LPoint3(x, y, z));
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}
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/**
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*
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*/
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INLINE const LPoint3 &CollisionSegment::
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get_point_b() const {
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return _b;
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}
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/**
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* Accepts a LensNode and a 2-d point in the range [-1,1]. Sets the
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* CollisionSegment so that it begins at the LensNode's near plane and extends
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* to the far plane, making it suitable for picking objects from the screen
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* given a camera and a mouse location.
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*/
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INLINE bool CollisionSegment::
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set_from_lens(LensNode *camera, PN_stdfloat px, PN_stdfloat py) {
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return set_from_lens(camera, LPoint2(px, py));
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}
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