Color according to density

[monstertje3]

I have a cannon wich takes away density from the target, is it also possible to see a different color according to density?

i tried {e.this.density} at the color in the script menu, but it just turns red (the script box, not the target)

[hiltropper]

thats because the color hsas 4 values (as colrHSVA has too)
so if you give the color just one value (what density is) , it wont work right
make an oncollide script where you let it act like

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density==2?{color=color}:{color=[what,ever,you,want]}

if its default (set to density 2) it will stay in its color but if you change the density (like trough a projectile) it will change to what color you want

[monstertje3]

but then it is color A or B, isn't it possible to make it a gradual change?

[bozbez]

That would look more like this: color = [{e.this.density/2}, something, something, something]. The /2 is to get the value between 1 and 0.

[Someone Else]

I think this is closer to the script you want (at least the script I'd want):

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(e.other) -> {
    drawBorder = false;
    drawCake = false;
    controllerAcc = sim.time;
    density = {(sim.time - controllerAcc) + 0.00010000000000000000};
    color = {[density, density - 8, density - 16, 10] / 10}
}

An odd syntax, I know, but it works. Credit to Gear97.

It initially sets density to very low, then gradually increases it over time. Color is bound to this in that as density increases, color fades from black to red to orange to yellow to white. This simulates the object heating up, as far as color goes.

[monstertje3]

yay this works, when i put this in the color place, it still turns red (scriptbox), but the target does too, en on lower density it turns black!

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{[density, density - 8, density - 16, 10] / 10}

Thank you guys!

Edit: it turns red because i selected tracers too (fail)

[Someone Else]

Hmm... The code in my post is intended to be an onCollide script.

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(scene.addCircle({pos := e.pos})) -> {
    drawBorder = false;
    drawCake = false;
    controllerAcc = sim.time;
    density = {(sim.time - controllerAcc) + 0.00010000000000000000};
    color = {[density, density - 8, density - 16, 10] / 10}
}

This would be used in spawning. Note that it spawns a circle in the actual code.
This, however, does not work:

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scene.addCircle({
    pos := e.pos;
    drawBorder := false;
    drawCake := false;
    controllerAcc := sim.time;
    density := {(sim.time - controllerAcc) + 0.00010000000000000000};
    color := {[density, density - 8, density - 16, 10] / 10}})


When you use this code, the color and density stop changing as soon as you spawn a new circle.

Also, I suggest you fool around with my code to see how it works- the color bit anyway.

Keep this in mind: the color array is composed of four parts: [red, blue, green, alpha/transparency].

Each value ranges between 0 and 1. Examples:
[0, 0, 0, 1] = black
[1, 1, 1, 1] = white
[0.5, 0.5, 0.5, 1] = gray
[1, 0, 0, 1] = red
[0.5, 0, 0, 1] = dark red
[1, 0.5, 0.5, 1] = light red