Hi guys. I have a question/request I would like to try to make sure that when I take a power-up of the same type 2 times from level 1 it goes to level 2 with the same power which however at level 2 varies its abilities.
EX: If I take the explosive powerup 2 times it goes up to level 2 and the blast radius is wider and the damage increases. And so on if I take 3 and go to level 3 the blast radius is wider and the damage increases.
How can I do it?
There are quite a few ways to do this.
I would probably recommend using objects as the powerups.
You can have an actor that acts as a pickup for the powerups instead of having that logic on the individual powerups. Whenever picking up a powerup, you check whether that already exists. If it does, increment. If it doesn’t, create it and add it to the map (which is just a powerup class to powerup object map)
The levelup function itself can simply be an increment node:
You can then just get the individual damage by using a get function:
You’ll probably want to make it pure:
and then you can simply use that function instead of a direct variable (this exact explosion function wouldn’t be in the parent powerup class- the parent powerup class should only have functions that every single powerup uses):
To create different powerups, simply create children of this powerup.
You can then override any method you need in those children classes- such as a OnPowerupUsed function. This way you can use a powerup without knowing what it specifically is.
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Ok, but in the first image how did you do the first step with the purple link with a function?
Because in general, it is clear to me how to make the second level of the power-up. It is not clear to me how to make that if the player takes the power-up 2 times the logic signals that you have 2 power-ups of the same type and when it is taken 2 times it goes directly to level 2 of the power-up
I’m not sure what you mean by this. There are no delay nodes or anything, so you can just implement this into a function with no changes. The class of new powerup should be a variable you take from the pickup you just picked up.
It doesn’t strictly signal you have two powerups of the same type.
That’s the purpose of this section:
If you already have the powerup, you level it up (ie from level 1 to 2 or 2 to 3 using the levelup function).
Let’s take the example “you pick up three speed powerups”.
Each time you pick up a speed powerup, the section in the first image will play, so let’s go through it one pickup at a time.
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For the first pickup, we get to the branch node and realize that we don’t already have a speed powerup. Because of this, we go out false on that branch. False leads us to create/record a new powerup object.
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For the second pickup, we get to the branch node and notice we DO already have a speed powerup. This leads to true on the branch. We want our speed powerup to be level 2 now. The true pin on the branch leads to a node that levels up our original powerup. Our speed powerup is now level 2.
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The same thing happens with the third pickup as the second. The powerup exists, so we level it up- resulting in a powerup that’s now level 3.
Whenever you use the powerup, you simply remove it from the map, and the cycle repeats whenever you pick up another powerup.