Difference between revisions of "317:Construct map region"
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=== Description === | === 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 | ||
| + | |- | ||
| + | | [[Data_Types#Standard_data_types|Short]] [[Data_Types#Non_Standard_Data_Types|Special A]] | ||
| + | | The region Y coordinate (absolute Y coordinate / 8), plus 6. | ||
| + | |- | ||
| + | | [[#Bit block|Bit block]] | ||
| + | | See below. | ||
| + | |- | ||
| + | | [[Data_Types#Standard_data_types|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 | ||
Latest revision as of 19:23, 11 October 2009
| Construct map region 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
| Data type | Description |
|---|---|
| Short Special 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
