best way to determine approach/recede

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Wormbo

Wormbo

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Jun 4, 2001
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If AskingActor's movement is irrelevant (ProbedActor is trying to get away) you could use
Code: 
f = Normal(ProbedActor.Location - AskingActor.Location) dot Normal(ProbedActor.Velocity);
Positive values for f -> ProbedActor tries to get closer to AskingActor
Negative values for f -> ProbedActor tries to get away from AskingActor

But if you want to check whether ProbedActor really gets closer to /away from AskingActor use
Code: 
f = Normal(ProbedActor.Location - AskingActor.Location) dot Normal(ProbedActor.Velocity - AskingActor.Velocity);
Positive values for f -> ProbedActor gets away from AskingActor
Negative values for f -> ProbedActor gets closer to AskingActor
 
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