Add on_generated_sprite_mesh signal

[Joy-less]

This is useful if you want to connect your own tool script to modify the material after it's generated.

[98teg]

Not sure of the use case of this one, could you provide an example?

[Joy-less]

Not sure of the use case of this one, could you provide an example?

In my own project, I created a wrapper tool script that further customises the SpriteMesh on top of what customization the SpriteMesh is able to provide.

SpriteMeshInstance.Connect(StringName("on_generated_sprite_mesh"), Callable.From(CustomizeMaterial));

public void CustomizeMaterial() {
    StandardMaterial3D StandardMaterial = (StandardMaterial3D)SpriteMeshInstance.GetSurfaceOverrideMaterial(0);
    StandardMaterial.DiffuseMode = BaseMaterial3D.DiffuseModeEnum.Toon;
    StandardMaterial.SpecularMode = BaseMaterial3D.SpecularModeEnum.Toon;
    StandardMaterial.RimEnabled = true;
    StandardMaterial.Rim = 1.0f;
}

Since the SpriteMesh is generated after a delay, it's not simple to do this without a signal.

[98teg]

I think this should be at inside
func _generate_sprite_mesh()

[Joy-less]

I think this should be at inside func _generate_sprite_mesh()

You are right, unfortunately C# classes can't extend GDScript classes.

[98teg]

I meant that the emitted signal should be inside func _generate_sprite_mesh() in order for this change to be merged, sorry for the confusion

[Joy-less]

Sorry, GitHub made a mess out of this.
I will open a new pull request.