[Script] hide sprite without flag?

[Dinisk]

I want to create a script. The guard who won't let you in until you talk to Oak. After talking with the professor, the guard disappears. If there is no way, to use the clear flag(with its subsequent use), and this will result in a failed guard. if you can write a script?don't want to use flags for such little things.

 

[DrFuji]

There are really only two ways to easily remove NPCs from their original positions: flags and variables. Flags are simple to use and make them disappear while variables can be checked in a level script that moves the NPC's position. For example, if you set variable 0x4011 to 0x1 while speaking to Professor Oak, you could put a type 03 or 05 level script in the map with the guard that looks like this:

#dynamic 0x800000

#org @start
checkvar 0x4011 0x1 // Checks the value of variable 0x4011
if 0x4 goto @Guard // If the value is greater than or equal to 0x1, go to @Guard
end

#org @Guard
movesprite2 0x1 0xFF 0xFF // Moves the OW to map coordinates 0xFF, 0xFF
end

The beautiful part of this script is that since you're checking if the variable is greater than or equal to 0x1, you can reuse the variable so long as it is never set back to 0x0. For example, there may be another guard that only disappears when 0x4011 is equal to 0x2. When you set the variable to 0x2 to get past the second guard, this first guard will still remain invisible.

 

[Dinisk]

There are really only two ways to easily remove NPCs from their original positions: flags and variables. Flags are simple to use and make them disappear while variables can be checked in a level script that moves the NPC's position. For example, if you set variable 0x4011 to 0x1 while speaking to Professor Oak, you could put a type 03 or 05 level script in the map with the guard that looks like this:

#dynamic 0x800000

#org @start
checkvar 0x4011 0x1 // Checks the value of variable 0x4011
if 0x4 goto @Guard // If the value is greater than or equal to 0x1, go to @Guard
end

#org @Guard
movesprite2 0x1 0xFF 0xFF // Moves the OW to map coordinates 0xFF, 0xFF
end

The beautiful part of this script is that since you're checking if the variable is greater than or equal to 0x1, you can reuse the variable so long as it is never set back to 0x0. For example, there may be another guard that only disappears when 0x4011 is equal to 0x2. When you set the variable to 0x2 to get past the second guard, this first guard will still remain invisible.

Thanks for the information. I will use a safe var.