Difference between revisions of "317:Construct map region"
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{{packet|name=Construct map region|description=Constructs a new map region from a palette of 8x8 tiles.|opcode=241|type=Variable Short|length=N/A}} | {{packet|name=Construct map region|description=Constructs a new map region from a palette of 8x8 tiles.|opcode=241|type=Variable Short|length=N/A}} | ||
+ | == Construct Map Region == | ||
+ | |||
+ | === Description === | ||
+ | |||
+ | The construct map region packet sends a dynamic map region that is constructed by using groups of 8*8 tiles. It is generally used for instanced areas, such as fight caves, and in later revisions, player owned houses. | ||
+ | |||
+ | === Packet Structure === | ||
+ | |||
+ | {| border=2 | ||
+ | ! Data type | ||
+ | ! Description | ||
+ | |- | ||
+ | | Short A | ||
+ | | The region Y coordinate (absolute Y coordinate / 8), plus 6. | ||
+ | |- | ||
+ | | Bit block | ||
+ | | See below. | ||
+ | |- | ||
+ | | Short | ||
+ | | The region X coordinate (absolute X coordinate / 8), plus 6. | ||
+ | |} | ||
+ | |||
+ | ==== Bit block ==== | ||
+ | |||
+ | The bit block actually contains the 'palette' of map regions to make up the new region. | ||
+ | |||
+ | There is a loop, like this, used to construct it: | ||
+ | |||
+ | for(int z = 0; z < 4; z++) { | ||
+ | for(int x = 0; x < 13; x++) { | ||
+ | for(int y = 0; y < 13; y++) { | ||
+ | // data for this region | ||
+ | } | ||
+ | } | ||
+ | } | ||
+ | |||
+ | The individual format in each iteration of the loop is: | ||
+ | |||
+ | * '''1 bit''' - set to 0 to indicate to display nothing, 1 to display a region | ||
+ | * '''26 bits''' - if the flag above is set to 1 - region x << 14 | region y << 3 |
Revision as of 08:41, 14 August 2009
Construct map region Constructs a new map region from a palette of 8x8 tiles. | |
Opcode | 241 |
---|---|
Type | Variable Short |
Length | N/A |
[[Category:Packet:{{{revision}}}]]
Construct Map Region
Description
The construct map region packet sends a dynamic map region that is constructed by using groups of 8*8 tiles. It is generally used for instanced areas, such as fight caves, and in later revisions, player owned houses.
Packet Structure
Data type | Description |
---|---|
Short A | The region Y coordinate (absolute Y coordinate / 8), plus 6. |
Bit block | See below. |
Short | The region X coordinate (absolute X coordinate / 8), plus 6. |
Bit block
The bit block actually contains the 'palette' of map regions to make up the new region.
There is a loop, like this, used to construct it:
for(int z = 0; z < 4; z++) { for(int x = 0; x < 13; x++) { for(int y = 0; y < 13; y++) { // data for this region } } }
The individual format in each iteration of the loop is:
- 1 bit - set to 0 to indicate to display nothing, 1 to display a region
- 26 bits - if the flag above is set to 1 - region x << 14 | region y << 3