Increase size of a spawned tracer + making it fade away

[Rideg]

Hello. I'm making a bomb were I need to spawn a tracer on a small ball and after that keep the tracer increasing and dading at the same time to give it a shockwave effect. I've tried to reengineer Davidz Howitzer but unsuccessful. I didn't understand how tha code worked and I hate borrowing other scene's codes. Hope You can help me
-Johan

[Kilinich]

Hello. I'm making a bomb were I need to spawn a tracer on a small ball and after that keep the tracer increasing and dading at the same time to give it a shockwave effect. I've tried to reengineer Davidz Howitzer but unsuccessful. I didn't understand how tha code worked and I hate borrowing other scene's codes. Hope You can help me
-Johan

Code: Select all

Scene.my.addSmoke := (sPos, sSize, sColor, sTime)=>{geval("scene.addCircle({pos := " + sPos + "; radius := .1; color := [0,0,0,0]; drawCake := false; collideSet := 0; drawBorder := false; density := {sim.time > " + sim.time + "+" + sTime + " ? 0 : 0.005}}); scene.addPen({pos := " + sPos + "; fadeTime := 0; color := {" + sColor + " - [0,0,0," + sColor(3) + "*(sim.time - " + sim.time + ")/" + sTime + "]} ; size := {0.01+" + sSize + " * (sim.time - " + sim.time + ")/" + sTime + "}}) ")};


[Rideg]

I couldn't get it to work. Could you write me a tutorial?

[Kilinich]

I couldn't get it to work. Could you write me a tutorial?

1. Get last Algodoo.
2. copy code
3. paste code in console and press enter
4. call scene.my.addSmoke(position, max_size, color, fade_time) from your script or console.

[Rideg]

Is it possible to make it without any scene.my.* variables

[Kilinich]

Is it possible to make it without any scene.my.* variables

Sure, just pick my code, replace variables and insert in your events.

[Rideg]

Okay great. Thank you very much