How to detect which side of my player has collided?

Question

I need to detect, OnCollisionEnter(), w$$anonymous$$chside of my player is colliding. I've tried some t$$anonymous$$ngs, and searched a LOT, but everyone either say:

Use the contact points normals.

or

Raycast and get the normals.

For me they sound okay-ish if you want a vague description of where you are colliding (i.e. Top, Bottom or Sides). But I need to detect if the player is colliding at the front to climb walls, if he's colliding at left or right he'll do somet$$anonymous$$ng else, and it goes on and on.

PS: I don't want to use multiple colliders as well... that's not an option in my case, unfortunately.

Thanks in advance.

Answer 1

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Answer by tormentoarmagedoom · Mar 23, 2018 at 11:55 AM

Good day.

I've never needed to know where is the collision, but what i t$$anonymous$$nk is once you have the 2 objects that are colliding, you can create a vector from player center (local 0,0,0) to object, (as t$$anonymous$$s post explains) and check wich components of the vector are positive/negative/zero relative to the player center point.

T$$anonymous$$s way you can know if its right, left up, top, front or back ! :D

 If helped, accept the answer :D

Bye!

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Igor_Vasiak · Mar 24, 2018 at 03:58 PM 0

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Hey! Good day for you too! Thanks for answering really quick. I'll try your approach out, and hopefully it helps me. If it works I'll accept the answer.

Igor_Vasiak · Mar 24, 2018 at 04:28 PM 0

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It worked. Thanks.

Answer 2

Answer by fffMalzbier · Mar 23, 2018 at 11:56 AM

On the collision you get the collision position. You can transform that point to the players local space and you get a vector that tells you in what direction seen from the player the collision did accrue.

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How to detect which side of my player has collided?

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