Panda3D
Loading...
Searching...
No Matches
lwoLayer.cxx
Go to the documentation of this file.
1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file lwoLayer.cxx
10 * @author drose
11 * @date 2001-04-24
12 */
13
14#include "lwoLayer.h"
15#include "lwoInputFile.h"
16
17#include "dcast.h"
18#include "indent.h"
19
20TypeHandle LwoLayer::_type_handle;
21
22/**
23 * Resets the layer's parameters to initial defaults for a generic layer
24 * created implicitly.
25 */
28 _number = -1;
29 _flags = 0;
30 _pivot.set(0.0, 0.0, 0.0);
31 _name = "Generic";
32 _parent = -1;
33}
34
35/**
36 * Reads the data of the chunk in from the given input file, if possible. The
37 * ID and length of the chunk have already been read. stop_at is the byte
38 * position of the file to stop at (based on the current position at
39 * in->get_bytes_read()). Returns true on success, false otherwise.
40 */
42read_iff(IffInputFile *in, size_t stop_at) {
43 LwoInputFile *lin = DCAST(LwoInputFile, in);
44
45 _number = lin->get_be_uint16();
46 _flags = lin->get_be_uint16();
47 _pivot = lin->get_vec3();
48 _name = lin->get_string();
49
50 if (lin->get_bytes_read() >= stop_at) {
51 _parent = -1;
52 } else {
53 _parent = lin->get_be_uint16();
54 if (_parent == 0xffff) {
55 _parent = -1;
56 }
57 }
58
59 return true;
60}
61
62/**
63 *
64 */
65void LwoLayer::
66write(std::ostream &out, int indent_level) const {
67 indent(out, indent_level)
68 << get_id() << " { number = " << _number << ", flags = 0x"
69 << std::hex << _flags << std::dec << ", pivot = " << _pivot
70 << ", _name = \"" << _name << "\", _parent = " << _parent << " }\n";
71}
IffId get_id() const
Returns the ID associated with this chunk.
Definition iffChunk.I:25
A wrapper around an istream used for reading an IFF file.
uint16_t get_be_uint16()
Extracts an unsigned 16-bit big-endian integer.
size_t get_bytes_read() const
Returns the number of bytes read so far from the input file.
std::string get_string()
Extracts a null-terminated string.
A specialization of IffInputFile to handle reading a Lightwave Object file.
LVecBase3 get_vec3()
Reads a three-component vector of floats.
void make_generic()
Resets the layer's parameters to initial defaults for a generic layer created implicitly.
Definition lwoLayer.cxx:27
virtual bool read_iff(IffInputFile *in, size_t stop_at)
Reads the data of the chunk in from the given input file, if possible.
Definition lwoLayer.cxx:42
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
std::ostream & indent(std::ostream &out, int indent_level)
A handy function for doing text formatting.
Definition indent.cxx:20
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.