Okay, quick lesson about how DROD processes events. This will be from the perspective of regular DROD, but the same should apply to RPG.
When you make a move, a new collection of events that have occurred is created. It starts empty. Then any event that's created is stored in that collection. The collection persists until the end of turn.
Okay, so you have command "
Wait for player to touch me"
. What it does is it asks the event collection something like this:
"
Hello good sir, do you have an event CID_PlayerBump that targets my X and Y position?"
What happens if the answer is no? It waits until the next turn and asks the question again, which repeats until the answer is Yes.
What happens if the answer is yes? It immediately runs the following script commands. Great!
But wait... What happens if in the same turn we encounter
another "
Wait for player to touch me"
? Or
the same? It asks the same collection the same question, and because the collection exists until the end of turn, if the answer was "
Yes"
previously it will be "
Yes"
until the turn ends. This is what creates an infinite loop.
In other words: if an event happened in a turn it happened for all queries about that event until the end of that turn. That can cause infinite loops, so that's why you need to put Wait 0 somewhere, so that DROD has the time to end the turn, and collect new events in the next turn.
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