diff options
Diffstat (limited to 'doc/classes/PackedByteArray.xml')
| -rw-r--r-- | doc/classes/PackedByteArray.xml | 46 |
1 files changed, 39 insertions, 7 deletions
diff --git a/doc/classes/PackedByteArray.xml b/doc/classes/PackedByteArray.xml index 36372fbe54..efb559522a 100644 --- a/doc/classes/PackedByteArray.xml +++ b/doc/classes/PackedByteArray.xml @@ -5,6 +5,7 @@ </brief_description> <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. </description> <tutorials> </tutorials> @@ -50,7 +51,7 @@ <param index="0" name="value" type="int" /> <param index="1" name="before" type="bool" default="true" /> <description> - 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 [code]before[/code] specifier can be passed. If [code]false[/code], the returned index comes after all existing entries of the value in the array. + 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 [param before] specifier can be passed. If [code]false[/code], the returned index comes after all existing entries of the value in the array. [b]Note:[/b] Calling [method bsearch] on an unsorted array results in unexpected behavior. </description> </method> @@ -78,66 +79,77 @@ <return type="float" /> <param index="0" name="byte_offset" type="int" /> <description> + Decodes a 64-bit floating point number from the bytes starting at [param byte_offset]. Fails if the byte count is insufficient. Returns [code]0.0[/code] if a valid number can't be decoded. </description> </method> <method name="decode_float" qualifiers="const"> <return type="float" /> <param index="0" name="byte_offset" type="int" /> <description> + Decodes a 32-bit floating point number from the bytes starting at [param byte_offset]. Fails if the byte count is insufficient. Returns [code]0.0[/code] if a valid number can't be decoded. </description> </method> <method name="decode_half" qualifiers="const"> <return type="float" /> <param index="0" name="byte_offset" type="int" /> <description> + Decodes a 16-bit floating point number from the bytes starting at [param byte_offset]. Fails if the byte count is insufficient. Returns [code]0.0[/code] if a valid number can't be decoded. </description> </method> <method name="decode_s16" qualifiers="const"> <return type="int" /> <param index="0" name="byte_offset" type="int" /> <description> + Decodes a 16-bit signed integer number from the bytes starting at [param byte_offset]. Fails if the byte count is insufficient. Returns [code]0[/code] if a valid number can't be decoded. </description> </method> <method name="decode_s32" qualifiers="const"> <return type="int" /> <param index="0" name="byte_offset" type="int" /> <description> + Decodes a 32-bit signed integer number from the bytes starting at [param byte_offset]. Fails if the byte count is insufficient. Returns [code]0[/code] if a valid number can't be decoded. </description> </method> <method name="decode_s64" qualifiers="const"> <return type="int" /> <param index="0" name="byte_offset" type="int" /> <description> + Decodes a 64-bit signed integer number from the bytes starting at [param byte_offset]. Fails if the byte count is insufficient. Returns [code]0[/code] if a valid number can't be decoded. </description> </method> <method name="decode_s8" qualifiers="const"> <return type="int" /> <param index="0" name="byte_offset" type="int" /> <description> + Decodes a 8-bit signed integer number from the bytes starting at [param byte_offset]. Fails if the byte count is insufficient. Returns [code]0[/code] if a valid number can't be decoded. </description> </method> <method name="decode_u16" qualifiers="const"> <return type="int" /> <param index="0" name="byte_offset" type="int" /> <description> + Decodes a 16-bit unsigned integer number from the bytes starting at [param byte_offset]. Fails if the byte count is insufficient. Returns [code]0[/code] if a valid number can't be decoded. </description> </method> <method name="decode_u32" qualifiers="const"> <return type="int" /> <param index="0" name="byte_offset" type="int" /> <description> + Decodes a 32-bit unsigned integer number from the bytes starting at [param byte_offset]. Fails if the byte count is insufficient. Returns [code]0[/code] if a valid number can't be decoded. </description> </method> <method name="decode_u64" qualifiers="const"> <return type="int" /> <param index="0" name="byte_offset" type="int" /> <description> + Decodes a 64-bit unsigned integer number from the bytes starting at [param byte_offset]. Fails if the byte count is insufficient. Returns [code]0[/code] if a valid number can't be decoded. </description> </method> <method name="decode_u8" qualifiers="const"> <return type="int" /> <param index="0" name="byte_offset" type="int" /> <description> + Decodes a 8-bit unsigned integer number from the bytes starting at [param byte_offset]. Fails if the byte count is insufficient. Returns [code]0[/code] if a valid number can't be decoded. </description> </method> <method name="decode_var" qualifiers="const"> @@ -145,6 +157,7 @@ <param index="0" name="byte_offset" type="int" /> <param index="1" name="allow_objects" type="bool" default="false" /> <description> + Decodes a [Variant] from the bytes starting at [param byte_offset]. Returns [code]null[/code] if a valid variant can't be decoded or the value is [Object]-derived and [param allow_objects] is [code]false[/code]. </description> </method> <method name="decode_var_size" qualifiers="const"> @@ -152,6 +165,7 @@ <param index="0" name="byte_offset" type="int" /> <param index="1" name="allow_objects" type="bool" default="false" /> <description> + Decodes a size of a [Variant] from the bytes starting at [param byte_offset]. Requires at least 4 bytes of data starting at the offset, otherwise fails. </description> </method> <method name="decompress" qualifiers="const"> @@ -159,7 +173,7 @@ <param index="0" name="buffer_size" type="int" /> <param index="1" name="compression_mode" type="int" default="0" /> <description> - Returns a new [PackedByteArray] with the data decompressed. Set [code]buffer_size[/code] to the size of the uncompressed data. Set the compression mode using one of [enum File.CompressionMode]'s constants. + Returns a new [PackedByteArray] with the data decompressed. Set [param buffer_size] to the size of the uncompressed data. Set the compression mode using one of [enum File.CompressionMode]'s constants. </description> </method> <method name="decompress_dynamic" qualifiers="const"> @@ -169,7 +183,7 @@ <description> Returns a new [PackedByteArray] with the data decompressed. Set the compression mode using one of [enum File.CompressionMode]'s constants. [b]This method only accepts gzip and deflate compression modes.[/b] This method is potentially slower than [code]decompress[/code], as it may have to re-allocate its output buffer multiple times while decompressing, whereas [code]decompress[/code] knows it's output buffer size from the beginning. - GZIP has a maximal compression ratio of 1032:1, meaning it's very possible for a small compressed payload to decompress to a potentially very large output. To guard against this, you may provide a maximum size this function is allowed to allocate in bytes via [code]max_output_size[/code]. Passing -1 will allow for unbounded output. If any positive value is passed, and the decompression exceeds that amount in bytes, then an error will be returned. + GZIP has a maximal compression ratio of 1032:1, meaning it's very possible for a small compressed payload to decompress to a potentially very large output. To guard against this, you may provide a maximum size this function is allowed to allocate in bytes via [param max_output_size]. Passing -1 will allow for unbounded output. If any positive value is passed, and the decompression exceeds that amount in bytes, then an error will be returned. </description> </method> <method name="duplicate"> @@ -183,6 +197,7 @@ <param index="0" name="byte_offset" type="int" /> <param index="1" name="value" type="float" /> <description> + Encodes a 64-bit floating point number as bytes at the index of [param byte_offset] bytes. The array must have at least 8 bytes of allocated space, starting at the offset. </description> </method> <method name="encode_float"> @@ -190,6 +205,7 @@ <param index="0" name="byte_offset" type="int" /> <param index="1" name="value" type="float" /> <description> + Encodes a 32-bit floating point number as bytes at the index of [param byte_offset] bytes. The array must have at least 4 bytes of space, starting at the offset. </description> </method> <method name="encode_half"> @@ -197,6 +213,7 @@ <param index="0" name="byte_offset" type="int" /> <param index="1" name="value" type="float" /> <description> + Encodes a 16-bit floating point number as bytes at the index of [param byte_offset] bytes. The array must have at least 2 bytes of space, starting at the offset. </description> </method> <method name="encode_s16"> @@ -204,6 +221,7 @@ <param index="0" name="byte_offset" type="int" /> <param index="1" name="value" type="int" /> <description> + Encodes a 16-bit signed integer number as bytes at the index of [param byte_offset] bytes. The array must have at least 2 bytes of space, starting at the offset. </description> </method> <method name="encode_s32"> @@ -211,6 +229,7 @@ <param index="0" name="byte_offset" type="int" /> <param index="1" name="value" type="int" /> <description> + Encodes a 32-bit signed integer number as bytes at the index of [param byte_offset] bytes. The array must have at least 2 bytes of space, starting at the offset. </description> </method> <method name="encode_s64"> @@ -218,6 +237,7 @@ <param index="0" name="byte_offset" type="int" /> <param index="1" name="value" type="int" /> <description> + Encodes a 64-bit signed integer number as bytes at the index of [param byte_offset] bytes. The array must have at least 2 bytes of space, starting at the offset. </description> </method> <method name="encode_s8"> @@ -225,6 +245,7 @@ <param index="0" name="byte_offset" type="int" /> <param index="1" name="value" type="int" /> <description> + Encodes a 8-bit signed integer number (signed byte) at the index of [param byte_offset] bytes. The array must have at least 1 byte of space, starting at the offset. </description> </method> <method name="encode_u16"> @@ -232,6 +253,7 @@ <param index="0" name="byte_offset" type="int" /> <param index="1" name="value" type="int" /> <description> + Encodes a 16-bit unsigned integer number as bytes at the index of [param byte_offset] bytes. The array must have at least 2 bytes of space, starting at the offset. </description> </method> <method name="encode_u32"> @@ -239,6 +261,7 @@ <param index="0" name="byte_offset" type="int" /> <param index="1" name="value" type="int" /> <description> + Encodes a 32-bit unsigned integer number as bytes at the index of [param byte_offset] bytes. The array must have at least 4 bytes of space, starting at the offset. </description> </method> <method name="encode_u64"> @@ -246,6 +269,7 @@ <param index="0" name="byte_offset" type="int" /> <param index="1" name="value" type="int" /> <description> + Encodes a 64-bit unsigned integer number as bytes at the index of [param byte_offset] bytes. The array must have at least 8 bytes of space, starting at the offset. </description> </method> <method name="encode_u8"> @@ -253,6 +277,7 @@ <param index="0" name="byte_offset" type="int" /> <param index="1" name="value" type="int" /> <description> + Encodes a 8-bit unsigned integer number (byte) at the index of [param byte_offset] bytes. The array must have at least 1 byte of space, starting at the offset. </description> </method> <method name="encode_var"> @@ -261,6 +286,7 @@ <param index="1" name="value" type="Variant" /> <param index="2" name="allow_objects" type="bool" default="false" /> <description> + Encodes a [Variant] at the index of [param byte_offset] bytes. A sufficient space must be allocated, depending on the encoded variant's size. If [param allow_objects] is [code]false[/code], [Object]-derived values are not permitted and will instead be serialized as ID-only. </description> </method> <method name="fill"> @@ -306,7 +332,7 @@ <return type="bool" /> <param index="0" name="value" type="int" /> <description> - Returns [code]true[/code] if the array contains [code]value[/code]. + Returns [code]true[/code] if the array contains [param value]. </description> </method> <method name="has_encoded_var" qualifiers="const"> @@ -314,6 +340,7 @@ <param index="0" name="byte_offset" type="int" /> <param index="1" name="allow_objects" type="bool" default="false" /> <description> + Returns [code]true[/code] if a valid [Variant] value can be decoded at the [param byte_offset]. Returns [code]false[/code] othewrise or when the value is [Object]-derived and [param allow_objects] is [code]false[/code]. </description> </method> <method name="hex_encode" qualifiers="const"> @@ -400,9 +427,9 @@ <param index="0" name="begin" type="int" /> <param index="1" name="end" type="int" default="2147483647" /> <description> - Returns the slice of the [PackedByteArray], from [code]begin[/code] (inclusive) to [code]end[/code] (exclusive), as a new [PackedByteArray]. - The absolute value of [code]begin[/code] and [code]end[/code] will be clamped to the array size, so the default value for [code]end[/code] makes it slice to the size of the array by default (i.e. [code]arr.slice(1)[/code] is a shorthand for [code]arr.slice(1, arr.size())[/code]). - If either [code]begin[/code] or [code]end[/code] are negative, they will be relative to the end of the array (i.e. [code]arr.slice(0, -2)[/code] is a shorthand for [code]arr.slice(0, arr.size() - 2)[/code]). + Returns the slice of the [PackedByteArray], from [param begin] (inclusive) to [param end] (exclusive), as a new [PackedByteArray]. + The absolute value of [param begin] and [param end] will be clamped to the array size, so the default value for [param end] makes it slice to the size of the array by default (i.e. [code]arr.slice(1)[/code] is a shorthand for [code]arr.slice(1, arr.size())[/code]). + If either [param begin] or [param end] are negative, they will be relative to the end of the array (i.e. [code]arr.slice(0, -2)[/code] is a shorthand for [code]arr.slice(0, arr.size() - 2)[/code]). </description> </method> <method name="sort"> @@ -449,24 +476,29 @@ <return type="bool" /> <param index="0" name="right" type="PackedByteArray" /> <description> + Returns [code]true[/code] if contents of the arrays differ. </description> </operator> <operator name="operator +"> <return type="PackedByteArray" /> <param index="0" name="right" type="PackedByteArray" /> <description> + Returns a new [PackedByteArray] with contents of [param right] added at the end of this array. For better performance, consider using [method append_array] instead. </description> </operator> <operator name="operator =="> <return type="bool" /> <param index="0" name="right" type="PackedByteArray" /> <description> + Returns [code]true[/code] if contents of both arrays are the same, i.e. they have all equal bytes at the corresponding indices. </description> </operator> <operator name="operator []"> <return type="int" /> <param index="0" name="index" type="int" /> <description> + Returns the byte at index [param index]. Negative indices can be used to access the elements starting from the end. Using index out of array's bounds will result in an error. + Note that the byte is returned as a 64-bit [int]. </description> </operator> </operators> |