2d Isometric Hack and Slash.. right tool?

Majicpanda

[UNITY]

This tool looks amazing, but one problem I can't seem to find any info about is swapping say weapons out during runtime in Unity 3d when equipping different gear.

Being able to swap out the equipped weapon at runtime and have a collider attached that updated when you equip new items is a big concern also as that is the hit detection in the game.

Thanks!

Mitch

Definitely the right tool. Weapon swapping is easy. Colliders might be a little bit more fun, but nothing preventing you from doing it. Take a look at the Unity Examples thread specifically for uses of Skeleton Utility.

Majicpanda

Embarrassed... I totally skipped over the eye video (assuming that's the one) because it didn't look like anything pertaining to what I wanted to do, lol.

The basic idea is that it exposes all the bones for manipulation? I was trying to mess with the Platformer example in Unity and can see where you can expose the color property to adjust those at runtime which is great, but I seem to be missing how to expose the mesh to swap out for the weapon or other. Was I looking at the right example?

I have some clever ideas for animation hit detection instead of using the actual sword, so that won't be the deciding factor.

Thanks again.

Nate

Try this:
http://esotericsoftware.com/spine-using ... ttachments

Majicpanda

Just checked this against the Goblin example and see how it is all working.

Final question for workflow verification and I will force our funds manager to get this because it's simply amazing for what we're going to make.. 😉

If we have 20 weapons and 10 shields as example it seems ideal to put all of these in the Spine animation so that you can just call the SetAttachment method?

skeletonAnimation.skeleton.SetAttachment("chest", "female_plate_chest");
skeletonAnimation.skeleton.SetAttachment("mainhand item", "dagger");

This is way down the line after we get the tool but the final requirement would be to be able to change the animation to Idle_2h, Attack_2h so it would be a completely different set of animation transitioning which I assume we just call after someone equips an item.
skeletonAnimation.skeleton.SetAttachment("mainhand item", "halberd");

Nate

Majicpanda schrieb
it seems ideal to put all of these in the Spine animation

Do you mean put them all in the skeleton? Yes, that is how it is designed.

Playing different animations based on what items your character has equipped is up to you.

Skins can be used to group attachments, eg for items that are multiple attachments (armor might have chest, arm, leg pieces). You can then combine skins at runtime based on the items the character has equipped. You can also just use SetAttachment, but then you need to know that item X is made up of attachments A, B, C.

Majicpanda

One more question to add to this. If we plan to have say 30 enemies attack a player all at once with 4 players in multiplayer is there going to be anything to watch for performance wise on PC/OSX?

We will be using the essential most likely to begin with, but how much a performance increase would there be with meshes on the Pro version and will it be needed for something like this with 30 or so characters on screen at once? I say on screen, but would any off screen be taking up cycles as well?

Mitch

I can't directly speak to the stock version of Spine, but I modded it fairly easily to support 200+ active Spine skeletons on my Nexus 4 android phone. You dont have to worry about OSX/PC.

tonyc

Majicpanda schrieb
One more question to add to this. If we plan to have say 30 enemies attack a player all at once with 4 players in multiplayer is there going to be anything to watch for performance wise on PC/OSX?

We will be using the essential most likely to begin with, but how much a performance increase would there be with meshes on the Pro version and will it be needed for something like this with 30 or so characters on screen at once? I say on screen, but would any off screen be taking up cycles as well?

Hiya.

Just check if off screen and don't process?

You'll more than likely have a screen bounds check anyway yeah?

Majicpanda

I don't know how Unity does management of loading Spine entities but if I have a game world that needs to be fully interactive and dynamic I would need to spawn in the 300-400 monsters running their logic in the background even if they are off screen. I have no idea how much memory this takes up or if it's even a problem. I could possibly not run any animations and only render their current state when on screen, but is that really necessary?

Søren

Majicpanda schrieb
One more question to add to this. If we plan to have say 30 enemies attack a player all at once with 4 players in multiplayer is there going to be anything to watch for performance wise on PC/OSX?

We will be using the essential most likely to begin with, but how much a performance increase would there be with meshes on the Pro version and will it be needed for something like this with 30 or so characters on screen at once? I say on screen, but would any off screen be taking up cycles as well?

Meshes can in some cases perform better than quads on mobile, but it depends on a couple of things.
Fillrate is still the biggest bottleneck on mobile so culling white space is a great way to optimize and this can be done with meshes. However you need to consider the size of the mesh and how many vertices.
Some examples:
A mesh with 3 vertices will always perform better than a quad.
A mesh with 20 vertices might perform better than quad but only if the size of the mesh is relatively large and culls a lot of white space.

A way you can test performance is to just draw a bunch of skeletons with a single attachments first as quads and then as meshes with varying amounts of vertices and varying scale.

I did a test on something related a couple of years ago and in some cases meshes outperformed quads by more than 300% unfortunately I don't have the test online any more.