#Spawn help

1 messages · Page 1 of 1 (latest)

vale pike
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Oh my bad. It says it in the message. I guess this is a function. So you need to use it like Perpendicular().

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Just add brackets so that it calls the function

ornate ingot
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yeah I tried that but still doesn't like it 😦

vale pike
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Oh wait

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Second

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Oh it's a static function. Sorry, I haven't used it before.

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So

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Vector2 v = new Vector2 Perpendicular(firePoint.transform.forward.x, firePoint.transform.forward.z); This was almost correct

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But add a dot before Perpendicular

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and remove new

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So we are just calling a stataic function on Vector2

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It's just a function call, but it is in the Vector2 class

ornate ingot
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Then it tells me that it doesn't exist haha

vale pike
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So we do Vector2 v = Vector2.Perpendicular(firePoint.transform.forward.x, firePoint.transform.forward.z);

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Does that work?

ornate ingot
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it does not

vale pike
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??

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What does it say

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Oh

ornate ingot
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I think I know why one sec

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lol yeah

vale pike
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When we look at the documentation we see public static Vector2 Perpendicular(Vector2 inDirection);

ornate ingot
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Vector2 v = Vector2.Perpendicular(firePoint.transform.forward);

vale pike
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So I guess we need to pass in a vector

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Okay then we need to do Vector2 v = Vector2.Perpendicular(new Vector2(firePoint.transform.forward.x, firePoint.transform.forward.z));

ornate ingot
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that works

vale pike
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yay

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Sorry, I misread the documentation several times, my bad

ornate ingot
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ok so now we have a Vector2 that is perpendicular to my firePoint position

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which as I am understanding it would mean it looks like this

vale pike
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Uhh, well... It's better to represent v as an arrow.

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So

warm escarp
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what are we trying to solve here?

vale pike
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It is perpendicular to the forward vector. So v should be perpendicular to the direction that the gun is pointing.

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I draw ugly, but imagine it like this

unknown.png
ornate ingot
vale pike
ornate ingot
warm escarp
vale pike
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Oh, I guess that is a quicker way of getting the perpendicular vector 😄

warm escarp
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is that all cases or a unspecified amount of projectiles?

ornate ingot
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so you can upgrade the projectile type to spawn more projectiles in the game and before I was just spawning them all on top of each other and letting unity physics push them apart but it causes unpredictability

warm escarp
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so we have 2 "major" cases here: even amount of projectiles meaning nothing goes straight forward and uneven with 1 going forward and the others to the side

ornate ingot
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that's right yeah

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which is where var offset = i - (0.5f * projectileAmount); comes into play

warm escarp
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that would offset the first projectile by -0.5 if projectileamount is 1. doesnt sound right

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is the problem just the position or also the rotation?

ornate ingot
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yeah sorry, I add one to the end because it's a for loop

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no wait

ornate ingot
warm escarp
ornate ingot
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the total can vary

ornate ingot
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then it would solve the problem when it is at 1

vale pike
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If the gap between the bullets is gap, then var range = (i - 1) * gap; and var offset = firePoint.position - range/2 + i * gap;?

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By range, I mean the length from the leftmost to the rightmost bullet.

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But I wrote it like an idea, we need to change it for the direction

warm escarp
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but direction is same idea, have an angle similiar to gap and instead of having the position as a starting point you use the forward and rotate it by a calculated angle dependend on index

ornate ingot
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one of my main hurdles here is I am unsure how to add to the position

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how do I add a float to a Vector3

vale pike
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Isn't is just with +?

ornate ingot
warm escarp
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just make it a vector3 with the other parts 0

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at least i assume you want to move on 1 axis?

ornate ingot
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well the issue is that this happens

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If that makes any sense at all

warm escarp
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honestly not really^^

ornate ingot
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lol when it is rotated it seems like the axis are in world space not local

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even though the transform is a child of the gun

warm escarp
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firePos.TransformPoint(Vector3.right * offset);

vale pike
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var gap = firePoint.right.normalized;
var startingPos = firePoint.position - gap*(bulletsCount-1)/2;

for(int i = 0; i < bulletsCount; i++) {
  var spawnPos = startingPos + i*gap;
}

This should be pretty close to the final code for the position. And it looks pretty clean if it works.

warm escarp
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oh its a child?

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then you would just use localPosition

ornate ingot
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ok so I can just manipulate it on the z-axis in localPosition?

vale pike
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Oh wait, the bullets are children of the gun?

ornate ingot
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no the firepoint is a child of the weapon

vale pike
ornate ingot
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now they're just spawning in the middle of the world lol

ornate ingot
vale pike
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Yayy

ornate ingot
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thanks a ton