60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
// Filename: parabola_src.h
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// Created by: drose (10Oct07)
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//
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////////////////////////////////////////////////////////////////////
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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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////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////
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// Class : Parabola
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// Description : An abstract mathematical description of a parabola,
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// particularly useful for describing arcs of
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// projectiles.
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//
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// The parabolic equation, given parametrically here, is
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// P = At^2 + Bt + C.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA_MATHUTIL FLOATNAME(Parabola) {
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PUBLISHED:
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INLINE_MATHUTIL FLOATNAME(Parabola)();
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INLINE_MATHUTIL FLOATNAME(Parabola)(const FLOATNAME(LVecBase3) &a,
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const FLOATNAME(LVecBase3) &b,
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const FLOATNAME(LVecBase3) &c);
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INLINE_MATHUTIL FLOATNAME(Parabola)(const FLOATNAME(Parabola) ©);
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INLINE_MATHUTIL void operator = (const FLOATNAME(Parabola) ©);
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INLINE_MATHUTIL ~FLOATNAME(Parabola)();
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void xform(const FLOATNAME(LMatrix4) &mat);
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INLINE_MATHUTIL const FLOATNAME(LVecBase3) &get_a() const;
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INLINE_MATHUTIL const FLOATNAME(LVecBase3) &get_b() const;
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INLINE_MATHUTIL const FLOATNAME(LVecBase3) &get_c() const;
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INLINE_MATHUTIL FLOATNAME(LPoint3) calc_point(FLOATTYPE t) const;
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void output(ostream &out) const;
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void write(ostream &out, int indent_level = 0) const;
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public:
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void write_datagram(Datagram &destination) const;
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void read_datagram(DatagramIterator &source);
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private:
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FLOATNAME(LVecBase3) _a, _b, _c;
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};
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inline ostream &
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operator << (ostream &out, const FLOATNAME(Parabola) &p) {
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p.output(out);
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return out;
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}
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#include "parabola_src.I"
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