97 lines
2.9 KiB
C++
Executable File
97 lines
2.9 KiB
C++
Executable File
// Filename: CollisionHandlerGravity.h
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// Created by: drose (16Mar02)
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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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#ifndef CollisionHandlerGravity_H
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#define CollisionHandlerGravity_H
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#include "pandabase.h"
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#include "collisionHandlerPhysical.h"
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////////////////////////////////////////////////////////////////////
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// Class : CollisionHandlerGravity
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// Description : A specialized kind of CollisionHandler that sets the
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// Z height of the collider to a fixed linear offset
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// from the highest detected collision point each frame.
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// It's intended to implement walking around on a floor
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// of varying height by casting a ray down from the
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// avatar's head.
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////////////////////////////////////////////////////////////////////
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class EXPCL_PANDA_COLLIDE CollisionHandlerGravity : public CollisionHandlerPhysical {
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PUBLISHED:
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CollisionHandlerGravity();
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virtual ~CollisionHandlerGravity();
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INLINE void set_offset(float offset);
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INLINE float get_offset() const;
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INLINE void set_reach(float reach);
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INLINE float get_reach() const;
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INLINE float get_airborne_height() const;
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INLINE bool is_on_ground() const;
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INLINE float get_impact_velocity() const;
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INLINE const LVector3f &get_contact_normal() const;
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INLINE void add_velocity(float velocity);
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INLINE void set_velocity(float velocity);
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INLINE float get_velocity() const;
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INLINE void set_gravity(float gravity);
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INLINE float get_gravity() const;
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INLINE void set_max_velocity(float max_vel);
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INLINE float get_max_velocity() const;
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protected:
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float set_highest_collision(const NodePath &target_node_path, const NodePath &from_node_path, const Entries &entries);
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virtual bool handle_entries();
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virtual void apply_linear_force(ColliderDef &def, const LVector3f &force);
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private:
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float _offset;
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float _reach;
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float _airborne_height;
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float _impact_velocity;
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float _gravity;
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float _current_velocity;
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float _max_velocity;
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LVector3f _contact_normal;
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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CollisionHandlerPhysical::init_type();
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register_type(_type_handle, "CollisionHandlerGravity",
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CollisionHandlerPhysical::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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};
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#include "collisionHandlerGravity.I"
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#endif
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