historical/toontown-classic.git/panda/include/cMetaInterval.h

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/**
* PANDA 3D SOFTWARE
* Copyright (c) Carnegie Mellon University. All rights reserved.
*
* All use of this software is subject to the terms of the revised BSD
* license. You should have received a copy of this license along
* with this source code in a file named "LICENSE."
*
* @file cMetaInterval.h
* @author drose
* @date 2002-08-27
*/
#ifndef CMETAINTERVAL_H
#define CMETAINTERVAL_H
#include "directbase.h"
#include "cInterval.h"
#include "pointerTo.h"
#include "pdeque.h"
#include "pvector.h"
#include "plist.h"
#include "pset.h"
#include <math.h>
/**
* This interval contains a list of nested intervals, each of which has its
* own begin and end times. Some of them may overlap and some of them may
* not.
*/
class EXPCL_DIRECT_INTERVAL CMetaInterval : public CInterval {
PUBLISHED:
explicit CMetaInterval(const std::string &name);
virtual ~CMetaInterval();
enum RelativeStart {
RS_previous_end,
RS_previous_begin,
RS_level_begin,
};
INLINE void set_precision(double precision);
INLINE double get_precision() const;
void clear_intervals();
int push_level(const std::string &name,
double rel_time, RelativeStart rel_to);
int add_c_interval(CInterval *c_interval,
double rel_time = 0.0f,
RelativeStart rel_to = RS_previous_end);
int add_ext_index(int ext_index, const std::string &name,
double duration, bool open_ended,
double rel_time, RelativeStart rel_to);
int pop_level(double duration = -1.0);
bool set_interval_start_time(const std::string &name, double rel_time,
RelativeStart rel_to = RS_level_begin);
double get_interval_start_time(const std::string &name) const;
double get_interval_end_time(const std::string &name) const;
enum DefType {
DT_c_interval,
DT_ext_index,
DT_push_level,
DT_pop_level
};
INLINE int get_num_defs() const;
INLINE DefType get_def_type(int n) const;
INLINE CInterval *get_c_interval(int n) const;
INLINE int get_ext_index(int n) const;
virtual void priv_initialize(double t);
virtual void priv_instant();
virtual void priv_step(double t);
virtual void priv_finalize();
virtual void priv_reverse_initialize(double t);
virtual void priv_reverse_instant();
virtual void priv_reverse_finalize();
virtual void priv_interrupt();
INLINE bool is_event_ready();
INLINE int get_event_index() const;
INLINE double get_event_t() const;
INLINE EventType get_event_type() const;
void pop_event();
virtual void write(std::ostream &out, int indent_level) const;
void timeline(std::ostream &out) const;
protected:
virtual void do_recompute();
private:
class IntervalDef {
public:
DefType _type;
PT(CInterval) _c_interval;
int _ext_index;
std::string _ext_name;
double _ext_duration;
bool _ext_open_ended;
double _rel_time;
RelativeStart _rel_to;
int _actual_begin_time;
};
enum PlaybackEventType {
PET_begin,
PET_end,
PET_instant
};
class PlaybackEvent {
public:
INLINE PlaybackEvent(int time, int n, PlaybackEventType type);
INLINE bool operator < (const PlaybackEvent &other) const;
int _time;
int _n;
PlaybackEventType _type;
PlaybackEvent *_begin_event;
};
class EventQueueEntry {
public:
INLINE EventQueueEntry(int n, EventType event_type, int time);
int _n;
EventType _event_type;
int _time;
};
typedef pvector<IntervalDef> Defs;
typedef pvector<PlaybackEvent *> PlaybackEvents;
// ActiveEvents must be either a list or a vector--something that preserves
// order--so we can call priv_step() on the currently active intervals in
// the order they were encountered.
typedef plist<PlaybackEvent *> ActiveEvents;
typedef pdeque<EventQueueEntry> EventQueue;
INLINE int double_to_int_time(double t) const;
INLINE double int_to_double_time(int time) const;
void clear_events();
void do_event_forward(PlaybackEvent *event, ActiveEvents &new_active,
bool is_initial);
void finish_events_forward(int now, ActiveEvents &new_active);
void do_event_reverse(PlaybackEvent *event, ActiveEvents &new_active,
bool is_initial);
void finish_events_reverse(int now, ActiveEvents &new_active);
void enqueue_event(int n, CInterval::EventType event_type, bool is_initial,
int time = 0);
void enqueue_self_event(CInterval::EventType event_type, double t = 0.0);
void enqueue_done_event();
bool service_event_queue();
int recompute_level(int n, int level_begin, int &level_end);
int get_begin_time(const IntervalDef &def, int level_begin,
int previous_begin, int previous_end);
void write_event_desc(std::ostream &out, const IntervalDef &def,
int &extra_indent_level) const;
double _precision;
Defs _defs;
int _current_nesting_level;
PlaybackEvents _events;
ActiveEvents _active;
int _end_time;
size_t _next_event_index;
bool _processing_events;
// This is the queue of events that have occurred due to a recent
// priv_initialize(), priv_step(), etc., but have not yet been serviced, due
// to an embedded external (e.g. Python) interval that the scripting
// language must service. This queue should be considered precious, and
// should never be arbitrarily flushed without servicing all of its events.
EventQueue _event_queue;
public:
static TypeHandle get_class_type() {
return _type_handle;
}
static void init_type() {
CInterval::init_type();
register_type(_type_handle, "CMetaInterval",
CInterval::get_class_type());
}
virtual TypeHandle get_type() const {
return get_class_type();
}
virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
private:
static TypeHandle _type_handle;
};
#include "cMetaInterval.I"
#endif