How to call a common event with a variable?

[vgde01mb]

Hello! How can I set up my game so that when a game variable gets to 0, a common event activate? I tried setting it up where I have an autorun event that activates when a variable hits 0 but it lags out my game so much its hard to move. i tried the same thing with a parallel process and it lagged out again. Please help!

 

[CT_Bolt]

I've created a demo for you. Download link below.
Here's the break down:

Spoiler: Create "Setup" event on the Main Map. This is used to set the "Check Variables" switch to ON.

Spoiler: If the value is less than or equal to 0 subtract 1 Set Variable #1 to a value greater than 0, If the value is greater than 0 subtract 1

Spoiler: Check the Variables while the "Check Variables" Switch is 0N using a parallel process in a Common Event

Spoiler: When the value of Game Variable #1 is caught at value 0 run a common event

Variable Checking Demo: Click Here to Download
This demo should help solve your problem.

Please let me know how the demo works for you, it does use parallel process and an initial auto-run as a "setup" event but I don't experience any lag.