View source for Observe.objs

The '''observe.objs''' command prevents a screen object from moving through other objects.

== Syntax ==

observe.objs([[screen object|obj]] oA);

== Remarks ==

If [[screen object]] '''oA''' was previously set to ignore other objects (using the '''[[ignore.obj]]''' command), the '''observe.objs''' command restores normal behavior.

Use the '''[[ignore.objs]]''' command to allow an object to pass through other [[screen objects]].

== Possible Errors ==

AGI does not check that screen object number '''oA''' is a valid [[screen object]]. If it is not, this command will overwrite other data on the [[memory heap]], which may cause unexpected results, including possibly [[crashing AGI]].

== Example ==

<div class="CodeBlockHeader">Code:</div>
<syntaxhighlight lang="agi">
#define o3 ghost
ignore.objs(ghost);   [ this ghost can move through other objects
...
observe.objs(ghost);  [ now this ghost cannot move through other objects
</syntaxhighlight>

== Technical Information ==

{| border="1" cellpadding="2"
| style="background-color: #efefef" width="200" | '''Required Interpreter Version:'''
| width="175" | Available in all AGI versions.
|-
| style="background-color: #efefef" | '''Byte-Code Value:'''
| 68 (0x44 hex)
|}

== See Also ==

'''[[ignore.objs]]'''<br />
'''[[observe.blocks]]'''<br />
'''[[observe.horizon]]'''<br />
[[Category:Commands]]<br />