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Supa-Monky — Physics test 1
Published: 2006-09-21 15:07:13 +0000 UTC; Views: 5598; Favourites: 20; Downloads: 89
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Description
Test of multiple collisions against particlesRelated content
Comments: 32
Oh ok, do you have a newgrounds account?
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Cool special FX!
It would make a great rain/snow/hail effect with the right graphics!
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This very very cool...If I knew how to use this code *I saw your formula and I don't know...pretty advanced stuff for me personally* but if I could do it...i would use this effect to have the cursor as a movie clip of Pegasus and turn the blocks into droppings and have the circles as frowning heads...I apologize for that visual but my small mind thinks like that 
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You do know that im gonna have to make that now
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DUDE I thought of a great name for it...if you do this Pegasus + Fiber = FUNNN XD!!!
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So when are you gonna do teh gfx?
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lemme do the Pegasus real quick and I will ...er...what Flash version are you using?
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ok...lemme make it and then I can upload the parent file and you can work your magic with it
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Ok, but you want be able to see it till tommorow or later today or somthin depending where you live... its 1:08AM in australia... and i need sleep
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ok no rush...i just hope you can make it happen cuz if you can it will be soooo friggin cool
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Well i do make alot of pointless game
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well im not much of a thinker but if i get an idea i will for sure send it your way
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YOU NEED TO!!!! oh man that would rock...I am telling you!
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Would you be willing to do the gfx?
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what you mean the Pegasus and the frowning people? sure! But your a good enough artist...you did your own avatar right?
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yeah, but i dont know how draw a pegasus, and it would be a change to get somone else to do gfx for a while
yeah its my avatar, it rocks
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yes see your avatar is a great example of your drawing ability...ok so you want a cartoony Pegasus MovieClip?
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damn that's cool..mindif i ask how you went about coding it?
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Well for starters i like to test basic collision between the particles useing hitTest then after that you need to get the x and y distance
xd = particle._x - circle._x
yd = particle._y - circle._y
after that you can get the distance and direction
distance = Math.sqrt(xd*xd+yd*yd)
direction = -Math.atan2(xd,yd)/(Math.PI/180)
then you ask if the distance is less then the radius of the circle (if circle on circle collision use both radius's combined)
if the distance is less or equal (<
particle._x = circle._x+(Math.cos((direction+90)*(Math.PI/180))*radius
particle._y = circle._y+(Math.sin((direction+90)*(Math.PI/180))*radius
the code above makes it so the particle cant pass through the circle, so it sets its position relitive to its direction
then you have to set new velocities to the particles
(i useually have to stuff around for a while to get what i want because i dont learn physics at school yet :[ )
for this i made the particles y velocity just bounce
yv = -yv*0.5+2 // y velocity = -y velocity * bounce + weight
and i tryed to make some of the y vecocity transfer into x velocity
xv = (Math.cos(dir+90)*yv)*0.5
if you need more help just ask, i know alot of formulas
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That's how I figured you did it...so I assume each particle is running a for..in loop, cycling through alll the circles on the map? Or is it the circles that are running the loop (if the loop even exists)?
Oh, and: AS2, right?
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yeah this ones only AS2 one of the first physics things i ever made, each particle just cycles though a list of all the collidable objects and test collisions
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ARRRRRGHHHH.. genius code 8D
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wow...lol..that's a long reply
thanks
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