Firework

[Josh]

In this tutorial, I'm going to show how to make firework. You don't need any graphics because the particles are defined in code.

Code: Select all

[
  {
    "id":"$firework30","type":"animation","frames":[{"steal":"$anim_firework00","frame":2}],
    "meta":{"tags":{"firework":{
      "alpha":0.5, 
      "speed":15,
      "speed variation":0,
      "n":1,
      "time":2500,
      "time variation":0,
      "next":[
          {"id":"$firework31",  "always":true}, 
          {"id":"$firework32"}
       ]
    }}}
  },
  {
    "id":"$firework31","type":"animation","frames":[{"steal":"$anim_firework00","frame":2}],
    "meta":{"tags":{"firework":{
      "alpha":100, 
      "speed":5,
      "speed variation":1,
      "n":1000,
      "time":750,
      "time variation":1
    }}}
  },
  {
    "id":"$firework32","type":"animation","frames":[{"steal":"$anim_firework00","frame":3}],
    "meta":{"tags":{"firework":{
      "alpha":100, 
      "speed":5,
      "speed variation":1,
      "n":1000,
      "time":750,
      "time variation":1
    }}}
  },
  {
    "id":"$syl_spawner03",
    "type":"decoration",
    "category":"$category_firework00",
    "title":"Willow",
    "text":"A big willow.",
    "width":1,
    "height":1,
    "frames":[{"x":960,"y":524,"w":32,"h":20,"offset x":1024,"offset y":1024}],
    "on click fun":[
      {
        "actions":[{"type":"firework","id":"$firework30","z":1}]
      }
    ],
    "fun":[
      {
        "condition":{"type":"or","inner":[
          {"type":"building","id":"$on","x":1},
          {"type":"building","id":"$on","y":1},
          {"type":"building","id":"$on","x":-1},
          {"type":"building","id":"$on","y":-1}
        ]},
        "actions":[{"type":"firework","id":"$firework30","z":1}]
      }
    ],
    "requirements":[{"type":"FEATURE","id":"$feature_firework00"}]
  }
]

The frames are from this picture called $anim_firework00, from left to right (0-14)

$anim_firework00.png (660 Bytes) Viewed 6986 times

The whole code for the huge willow. Let's go through it!

"alpha" - The direction of the particle(s).
"speed" - The speed of a particle(s).
"speed variation" - If there should be variation in speed of the particle(s).
"n" - The number of particles to spawn.
"time" - The duration of the particle(s).
"time variation" - If there should be variation in the duration of the particle(s).
"next" - The id of the particle(s) that should spawn after the lifetime of the current particle(s) expired.

Feel free to ask questions about it

[Lobby]

Cool, thank you
So firework is basically a description of how to spawn particles and what to do when they're at the end of their life time (e.g. spawning new ones).

[Josh]

I forgot to mension about the frames, added it

[Lakan Haraya]

@Josh

Please give us more details about those attributes :/ like these following:
How integers on alpha translate on cardinal directions, if it is?
And those variation thingy?

I wonder how...
My fireworks explode immediately on ground and all particles spreads out to the entire city's cake •_• and... beyond :/

[PetrovMaksYt]

Making fireworks soooooooooooooooo hard...

v.png (25.33 KiB) Viewed 5236 times

[Suull13]

[NotPFA]

Please don't reply to old threads next time, unless they are unanswered, also check the date and year when the last post was posted before replying. If the thread helped you, react to the post instead of replying.‎@Suull13^[Posts][PM]