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PackedByteArray¶
A packed array of bytes.
Description¶
An array specifically designed to hold bytes. Packs data tightly, so it saves memory for large array sizes.
PackedByteArray also provides methods to encode/decode various types to/from bytes. The way values are encoded is an implementation detail and shouldn't be relied upon when interacting with external apps.
備註
There are notable differences when using this API with C#. See C# API 與 GDScript 的不同 for more information.
Constructors¶
PackedByteArray ( ) |
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PackedByteArray ( PackedByteArray from ) |
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PackedByteArray ( Array from ) |
Methods¶
void |
append_array ( PackedByteArray array ) |
void |
clear ( ) |
decode_double ( int byte_offset ) const |
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decode_float ( int byte_offset ) const |
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decode_half ( int byte_offset ) const |
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decode_s16 ( int byte_offset ) const |
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decode_s32 ( int byte_offset ) const |
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decode_s64 ( int byte_offset ) const |
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decode_u16 ( int byte_offset ) const |
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decode_u32 ( int byte_offset ) const |
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decode_u64 ( int byte_offset ) const |
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decode_var ( int byte_offset, bool allow_objects=false ) const |
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decode_var_size ( int byte_offset, bool allow_objects=false ) const |
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decompress ( int buffer_size, int compression_mode=0 ) const |
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decompress_dynamic ( int max_output_size, int compression_mode=0 ) const |
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duplicate ( ) |
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void |
encode_double ( int byte_offset, float value ) |
void |
encode_float ( int byte_offset, float value ) |
void |
encode_half ( int byte_offset, float value ) |
void |
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void |
encode_s16 ( int byte_offset, int value ) |
void |
encode_s32 ( int byte_offset, int value ) |
void |
encode_s64 ( int byte_offset, int value ) |
void |
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void |
encode_u16 ( int byte_offset, int value ) |
void |
encode_u32 ( int byte_offset, int value ) |
void |
encode_u64 ( int byte_offset, int value ) |
encode_var ( int byte_offset, Variant value, bool allow_objects=false ) |
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void |
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get_string_from_ascii ( ) const |
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get_string_from_utf8 ( ) const |
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get_string_from_utf16 ( ) const |
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get_string_from_utf32 ( ) const |
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get_string_from_wchar ( ) const |
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has_encoded_var ( int byte_offset, bool allow_objects=false ) const |
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hex_encode ( ) const |
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is_empty ( ) const |
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void |
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void |
reverse ( ) |
void |
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size ( ) const |
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void |
sort ( ) |
to_float32_array ( ) const |
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to_float64_array ( ) const |
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to_int32_array ( ) const |
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to_int64_array ( ) const |
Operators¶
operator != ( PackedByteArray right ) |
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operator + ( PackedByteArray right ) |
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operator == ( PackedByteArray right ) |
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operator [] ( int index ) |
Constructor Descriptions¶
PackedByteArray PackedByteArray ( )
Constructs an empty PackedByteArray.
PackedByteArray PackedByteArray ( PackedByteArray from )
Constructs a PackedByteArray as a copy of the given PackedByteArray.
PackedByteArray PackedByteArray ( Array from )
Constructs a new PackedByteArray. Optionally, you can pass in a generic Array that will be converted.
Method Descriptions¶
Appends an element at the end of the array (alias of push_back).
void append_array ( PackedByteArray array )
Appends a PackedByteArray at the end of this array.
int bsearch ( int value, bool before=true )
Finds the index of an existing value (or the insertion index that maintains sorting order, if the value is not yet present in the array) using binary search. Optionally, a before
specifier can be passed. If false
, the returned index comes after all existing entries of the value in the array.
Note: Calling bsearch on an unsorted array results in unexpected behavior.
void clear ( )
Clears the array. This is equivalent to using resize with a size of 0
.
PackedByteArray compress ( int compression_mode=0 ) const
Returns a new PackedByteArray with the data compressed. Set the compression mode using one of CompressionMode's constants.
Returns the number of times an element is in the array.
float decode_double ( int byte_offset ) const
Decodes a 64-bit floating point number from the bytes starting at byte_offset
. Fails if the byte count is insufficient. Returns 0.0
if a valid number can't be decoded.
float decode_float ( int byte_offset ) const
Decodes a 32-bit floating point number from the bytes starting at byte_offset
. Fails if the byte count is insufficient. Returns 0.0
if a valid number can't be decoded.
float decode_half ( int byte_offset ) const
Decodes a 16-bit floating point number from the bytes starting at byte_offset
. Fails if the byte count is insufficient. Returns 0.0
if a valid number can't be decoded.
int decode_s8 ( int byte_offset ) const
Decodes a 8-bit signed integer number from the bytes starting at byte_offset
. Fails if the byte count is insufficient. Returns 0
if a valid number can't be decoded.
int decode_s16 ( int byte_offset ) const
Decodes a 16-bit signed integer number from the bytes starting at byte_offset
. Fails if the byte count is insufficient. Returns 0
if a valid number can't be decoded.
int decode_s32 ( int byte_offset ) const
Decodes a 32-bit signed integer number from the bytes starting at byte_offset
. Fails i