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Contents 1 Definition 2 Parameters 3 Returns 4 Example

[edit] Definition

INT Exists ( <INT processID|processTypeID> )

Checks if a process is alive, using its processID or checks if there is a process alive of a certain processType, using its processTypeID.

[edit] Parameters

INT processID|processTypeID

- The ProcessID of the process or the ProcessTypeID of the type of processes to be checked.

[edit] Returns

INT : The result of the check

0 (false)	- The process with given processID is not alive or there are no processes alive of the given processTypeID.
1 (true)	- The process with given processID is alive or there is at least one process alive of the given processTypeID.

[edit] Example

Program example;
Begin

    Proc();

    if(exists(id))
        say("I exist!");
    end
    if(exists(type main))
        say("I exist!");
    end
    if(exists(0))
        say("0 doesn't exist");
    end
    if(exists(type proc))
        say("Proc exists!");
    else
        say("Proc doesn't exist!");
    end

    Loop
        frame;
    End
End

Process Proc()
Begin
    Loop
        frame;
    End
End

Used in example: Say()

Processinteraction Functions

• Advance() • Collision() • Exists() • Get_angle() • Get_dist() • Get_id() • Let_me_alone() • Signal() • Xadvance() •