Actionscript 3 :: Shooting Projectiles Given An Angle And Power?
Dec 31, 2011
I'm doing a prototype game like Worms and I would like not only to shot, but also see the whole projection curve where my shot will travel before it hit the ground. The only information given by the player is an angle and a power. There is also some level elements like wind and gravity.
Can I have a code for the projection curve? its like a parabola I think. I research about parabola but I had some difficult to apply these math formulas into the programming code.
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Nov 28, 2011
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Sep 24, 2010
So I've set myself a little project to build a bowman game. Everythings working smashing until the math at the point where the computer needs to figure out the power and angle to shoot the arrow back at you. What I've been working off is my knowledge from applied-math classes in school. I've been using the following formula where g is gravity, t is time (this would be in frames for flash), sx is the distance between the players, u is the initial force of the arrow and a is the angle we need to find. With a bit of moving around to seperate the angle, this becomes For my AS3 this translates to:
[Code]...
What happens is that it always fires the projectile at a very low angle that doesnt change to match the correct circumstances and I can't figure out how to get around this. Changing the force doesnt make any difference and the program will need to get around changing distances between the player so this math is pretty necessary (I think). Any math heads out there know what I should change?
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Sep 4, 2011
I want my spaceship shoot two shots at once. So I used my first array of projectiles and placed them at the right side of the ship (one shot on the left and one on the right). So far so good. But when I shoot with my spaceship and I turn around the rotations of the projectiles look very strange. It's hard to describe so here's an image that shows the error in action. [URL] I have huge problems rotating the projectiles ALONG with the spaceship so that it looks really good. Currently there is one single shot only. My shooting gets screwed up when I rotate and fire at once. The goal is to create a dual firing cannon like in the picture shown. Here is some code that places the projectile at the left of the ship (that doesn't really work):
[Code]....
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Jul 8, 2011
I am wracking my brain over how to figure this out and it is REALLY frustrating me. If we have a cannon on a castle wall that shoots a cannonball from (0,0) toward an enemy that sits below on the ground off to the right at (50,-10) and we want the cannonball to always reach 20 units in the air, how do I make a line function where I can plug x in (which will be 0-50) to calculate y out?
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is the equation for this where (h,k) is the vertex. This means k will always be 20. I know to keep 'a' negative because that will give an upside down U parabola. But how do I figure out what 'h' and 'a' are? Systems of equations? How on EARTH would I write a function to do that in Actionscript?
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Mar 27, 2009
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[Code]...
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function keyPressed(event:KeyboardEvent):void[code].....
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//----->
stop();
var monstersAlive:uint;
[code].....
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Feb 15, 2010
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Code:
stop();//add a stop function too!
enemyspeed =1
life=3
var gameOver:Boolean = false;
[Code]..
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I'm having trouble getting my character to fire. it seems to fire when he jumps, but not while standing. I have attached my code to the zip file below:This is the code I used:
onClipEvent (load) {
var gravity:Number = 0;
var speed:Number = 5;
[code]....
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