How to block skill usage if target on Land Protector?

[anacondaq]

Hi, how to do next thing? 

 

Example

 

Player A casting Fire Bolt on Player B, 

If ( player B on the CELL_CHKLANDPROTECTOR ) 
    skill will fail.

Example 2:

if( Player A casting NJ_BAKUENRYU on Player B && Player B on the CELL_CHKLANDPROTECTOR)
  skill will fail

How to do that?

 

NJ_BAKUENRYU = have splash area

Firewall = do not have splash area

 

 

[Yonko]

check this stuff at skill_db.txt

https://github.com/rathena/rathena/blob/master/db/pre-re/skill_db.txt

0x00001- skill ignores land protector (e.g. arrow shower)

[anacondaq]

check this stuff at skill_db.txt

https://github.com/rathena/rathena/blob/master/db/pre-re/skill_db.txt

0x00001- skill ignores land protector (e.g. arrow shower)

[anacondaq]

Problem not solved. Anyone can help me?