Talk about anything: Page 63 - Godot Community Forums

Talk about anything

some_lame_kid

@duane said: I made a police box from a tutorial once. I was amazed at how pretty it looked when I was done. :)

I was never good at tutorials. I always waste a ton of time experimenting between steps and I successfully turn a 10min long tutorial into 3 hours. The silo was not what the tutorial intended.

Audiobellum

Does anyone know how to use code(GDscript) to make an object rotate between a set numbers of degrees( like between 45 to -45 degrees or 0 to 90 degrees)? I figured out how to use the sine wave function to get the raycast of my enemy to rotate but it goes all the way around and I just want it to bounce between sometime like 0 to 90 degrees for patrolling purposes. Can anybody help? Here is what my code looks like for rotating the raycast right now:

	var sweeping = 0
	sweeping += delta
	raycast.rotate_z(sin(sweeping))

some_lame_kid

this might be a little heavy for a fix but try making a check for it's rotation. If it hits 90, use sweeping -= delta else if it hits 0, use the equation sweeping += delta make a boolean that tells it which equation to use, kind of like

if rotate_z == 90:
	return = true
if rotate_z == 0:
	return = false

if return:
	sweeping  -= delta
else:
	sweeping += delta

I didn't test this at all, it's just an idea for you. I haven't touched gdscript in a while so my syntax is kind of rusty. You can figure it out.

Audiobellum

Anyway, I wish deepfakes were used more in the mainstream. Any technology that can reduce the cost of movie production I think is cool and it's obviously more realistic than traditional types of CGI. It's way better at de-aging actors, it could allow actors to be in films they didn't perform in and it could even allow studios to finish a movie even if one of the actors in it died. I also wish more realistic text-to-speech software was free, open sourced and available offline; the possibilities would be endless where game development is concerned. Sonatic isn't free but, it's amazing what is possible with technology.

DaveTheCoder

it could even allow studios to finish a movie even if one of the actors in it died

That would save them a lot of money on insurance!

Audiobellum

@some_lame_kid

I tried something like this but, despite not getting any errors, it didn't seem to do anything:

 	if raycast.rotation.z == -45:
		sweeping = -90
	elif raycast.rotation.z == 45:
		sweeping = -90

some_lame_kid

I've got nothing. I haven't worked with "AI" much yet.

Audiobellum

@some_lame_kid said: I've got nothing. I haven't worked with "AI" much yet.

Well, thanks for the attempt; it was appreciated. I've managed to get some sort of result when I did this: if raycast.rotation.x < 1.5: raycast.rotate_z(sin(sweeping)) elif raycast.rotation.x > -1.5: raycast.rotate_z(-sin(sweeping)) print(raycast.rotation.x)

However, I think I've ran into other problems and I don't think it's entirely code related. I think I'm on to figuring out.

duane

@Audiobellum said: Here is what my code looks like for rotating the raycast right now:
	var sweeping = 0
	sweeping += delta
	raycast.rotate_z(sin(sweeping))

It sounds like you want the absolute value of the sine.

Bimbam

I imagine you want something like:

raycast.rotate_z(deg2rad(range_lerp(sin(sweeping), -1, 1, -45, 45)))

I've not tested the above, but range_lerp should effectively remap your sin output between -1 and 1, to an angle between -45 and 45.

And because I don't like radians, convert it to radians lol.

duane

@Bimbam said: And because I don't like radians, convert it to radians lol.

Oooo. I love radians. Metric forever!

#IwasMetricBeforeItWasCool

Audiobellum

Thanks @daune and @Bimbam for the replies. I have to say that I've never been very good when it comes to trigonometry but, I'm been trying to teach myself more of it as I try to solve this problem. I'm not sure to what extend using range_lerp helps as all it seems to do is alter the speed at which the raycast rotates. I do want to find the absolute value of the sine wave but, I'm not sure if I'm using the function for that properly; it doesn't seem to make a difference.

	var sweeping = 0
	sweeping += delta
	raycast.rotate_y(deg2rad(range_lerp(abs(sin(sweeping)), 0, 1, -45, 45)))
	print(raycast.rotation.y)

I had to change the axis to fix a problem that was caused by how I arranged the nodes.

Bimbam

This is what range_lerp should be doing.

You pass it the value you want to modify, the range of values it can currently travel between and the new range of values you want it to travel between.

So my idea is you have a sin value currently fluctuating between -1 and 1. The range_lerp above should (not tested) convert :

-1 to 0 into -45 to 0 0 to 1 into 0 to 45

You then just set the rotation to this value every frame. As long as 'sin(sweeping)' is fluctuating between -1 and 1 correctly that should work.

Anyway may be better off posting in the Programming category in the forum.

duane

Copying 6TB over usb is so slow! :s

fire7side

@Audiobellum said:

Well, thanks for the attempt; it was appreciated. I've managed to get some sort of result when I did this: if raycast.rotation.x < 1.5: raycast.rotate_z(sin(sweeping)) elif raycast.rotation.x > -1.5: raycast.rotate_z(-sin(sweeping)) print(raycast.rotation.x)

However, I think I've ran into other problems and I don't think it's entirely code related. I think I'm on to figuring out.

You could probably just use an animation and reverse it. Stop it when the raycast detected a collision.

Audiobellum

@fire7side said: You could probably just use an animation and reverse it. Stop it when the raycast detected a collision.

I'm using the animationplayer for something else at the same.

Audiobellum

Anyway, I found a different solution that is simpler and doesn't involve a sine wave, it's something like this.

		sweep = wrapi(sweep + 1,-sweep_range,sweep_range)
		raycast.rotation_degrees.y = sweep
		raycast.translation.y = -0.5

I didn't get that back and forth motion I wanted but, the movement is still repetitive and I still limited the movement of the raycast across the intended range.

fire7side

@Audiobellum said:

@fire7side said: You could probably just use an animation and reverse it. Stop it when the raycast detected a collision.

I'm using the animationplayer for something else at the same.

You can just add another animation player and set it to the rotation of the transform property. I'm sure what you have works, though.

Audiobellum

@fire7side said: You can just add another animation player and set it to the rotation of the transform property. I'm sure what you have works, though.

I always try to avoid using multiple animation players at the same time but, I still really should have thought about using the animation player to solve this problem; I would have gotten better results. I could have just make the ray cast rotation be apart of the walking animation. Why didn't I think of this before? Oh man! :/

Audiobellum

I've been listening to more rock lately and I felt I had to share this.

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