How do I spawn a list of sprites randomly?

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Sparsha

- santur
- - Joined 22 Apr, 2020
  - 2 topics • 3 posts
- 1
- 12 May, 2020
- Quote
Hello, I am new to construct and I could use some help.

I have a list of sprites that I want to create in game, and each needs to be created only once. The catch is that I would like for them to be spawned randomly, and I need one of the sprites (randomly chosen) to be spawned at a different spot. What would be the best way to implement this?

My plan was to add the sprites to an array and select a random index to be spawned, creating the other 23 afterwards. However, it does not seem that I can add sprites to an array, as it only allows me to enter info about the sprites.

Thanks for the help.
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- jjc001
- - Joined 12 Aug, 2014
  - 20 topics • 58 posts
- 1
- 12 May, 2020
- Quote
I believe the simplest way is to add them to a family and then

create object- family1

that worked in construct 2
- dop2000
- - Joined 26 May, 2016
  - 139 topics • 12,711 posts
- 1
- 13 May, 2020
- Quote
You need to decide if all these sprites will be separate objects, or if it can be a single sprite object with multiple animations/frames.

If you need to spawn many different objects without duplicates, you can name them like Obj1,Obj2,Obj3... and use "System Create by name" action:
Repeat 20 times : Create by name "Obj"&loopindex at (random(1920), random(1080))

If this will be a single sprite - create this sprite, and then set a frame.

Repeat 20 times : Create Sprite at (random(1920), random(1080)) : Set Spirte animation frame to loopindex

Instead of random position you can use invisible "spawner" sprites - then when creating a new object, pick a random unoccupied spawner.

jjc001 Creating a family instance will pick a random family member, but this method may produce duplicates. And OP said he needs each sprite to be created only once.