Talk:Circular Targeting - Revision history

RednaxelaBot: Using .

2010-07-01T08:33:24Z

Using <syntaxhighlight>.

Robobot: Robobot 0.1 : correcting user page links

2009-05-22T07:40:07Z

Robobot 0.1 : correcting user page links

Miked0801 at 04:54, 2 May 2009

2009-05-02T04:54:00Z

Awesomeness: Nano Circular targeting

2009-05-02T00:26:04Z

Nano Circular targeting

Voidious: moving Circular Targeting comments to a section here

2007-11-11T22:36:15Z

moving Circular Targeting comments to a section here

New page

== General discussion ==

Does anyone have a good way to put the iterative predicitive stuff (ala the NCLP) into an ExtendsRobot bot? --[[Alphax]]

FOR loops --[[UnderDark]]

Thank you, Captain Obvious.

The problem is that it's useful to have scans on consecutive ticks for that. You could either stop your bot and try and get two consecutive scans, or if the other bot is really moving in a roughly even curve, you can find the change in heading and divide it by the number of ticks between observations.

Of course, you should probably just use an AdvancedRobot, or not do circular targeting - if you're trying to enter it into a competition where only [[ExtendsRobot]] is allowed, none of your opponents will be moving in curves. -- [[Kawigi]]

<pre>double TurnRate = (Math.abs(Heading1-Heading2))/(Math.abs(TimeOfHeading1-TimeOfHeading2));</pre>
Hope this helps --[[UnderDark]]

Here is a play on Circular Targeting, it uses math only, its the Orbit gun from my nanobot Orbit (expanded of course, which wasn't an easy task). This piece of code could maybe be changed into a circle gun by putting something into the aimAngle calculation. (and calculating where that center is).

Orbit's Gun
<pre>
double absoluteBearing = e.getBearingRadians() + getHeadingRadians();
double lateralVelocity = e.getVelocity() * Math.sin(e.getHeadingRadians() - absoluteBearing);
double bulletSpeed = (20 - 3 * bulletPower);
double distance = e.getDistance();
double circularTravel = absoluteBearing + lateralVelocity / bulletSpeed;
double aimAngle = Math.atan2(distance * Math.sin(circularTravel), distance * Math.cos(circularTravel));
turnGunRightRadians(Utils.normalRelativeAngle(-getGunHeadingRadians() + aimAngle));
</pre>

* I'm pretty sure this is just linear targeting. In this equation, aimAngle will always equal circularTravel. -- [[Simonton]]
** Hrm dang, I reversed a equation of a circle to help get that. There must be a way to deloop the loop in a circle gun, its just math! But again simonton is far better at delooping things then I am. --[[Chase-san]]

@@ Line 9: / Line 9: @@
 The problem is that it's useful to have scans on consecutive ticks for that.  You could either stop your bot and try and get two consecutive scans, or if the other bot is really moving in a roughly even curve, you can find the change in heading and divide it by the number of ticks between observations.
-Of course, you should probably just use an AdvancedRobot, or not do circular targeting - if you're trying to enter it into a competition where only [[ExtendsRobot]] is allowed, none of your opponents will be moving in curves. -- [[Kawigi]]
+Of course, you should probably just use an AdvancedRobot, or not do circular targeting - if you're trying to enter it into a competition where only [[ExtendsRobot]] is allowed, none of your opponents will be moving in curves. -- [[User:Kawigi|Kawigi]]
 <pre>double TurnRate = (Math.abs(Heading1-Heading2))/(Math.abs(TimeOfHeading1-TimeOfHeading2));</pre>
@@ Line 27: / Line 27: @@
 </pre>
-* I'm pretty sure this is just linear targeting.  In this equation, aimAngle will always equal circularTravel.  -- [[Simonton]]
+* I'm pretty sure this is just linear targeting.  In this equation, aimAngle will always equal circularTravel.  -- [[User:Simonton|Simonton]]
-** Hrm dang, I reversed a equation of a circle to help get that. There must be a way to deloop the loop in a circle gun, its just math! But again simonton is far better at delooping things then I am. --[[Chase-san]]
+** Hrm dang, I reversed a equation of a circle to help get that. There must be a way to deloop the loop in a circle gun, its just math! But again simonton is far better at delooping things then I am. --[[User:Chase-san|Chase-san]]
 Are there any super-small noniterative nanobotish circular targeting methods?  [[User:Awesomeness|Awesomeness]] 00:26, 2 May 2009 (UTC)
 : Sort of.  With a little care, you can get circle like aim off a linear cannon if you nudge the lead value based on distance and a sin/cos value.  Not 100% accurate, but should hit fairly often.  This was done way long ago when we had a nano challenge to hit spinbot.  Turns out pattern matching makes it obsolete anyways. --[[User:Miked0801|Miked0801]] 04:54, 2 May 2009 (UTC)

← Older revision		Revision as of 04:54, 2 May 2009
Line 31:		Line 31:

	Are there any super-small noniterative nanobotish circular targeting methods? [[User:Awesomeness\|Awesomeness]] 00:26, 2 May 2009 (UTC)		Are there any super-small noniterative nanobotish circular targeting methods? [[User:Awesomeness\|Awesomeness]] 00:26, 2 May 2009 (UTC)
		+
		+	: Sort of. With a little care, you can get circle like aim off a linear cannon if you nudge the lead value based on distance and a sin/cos value. Not 100% accurate, but should hit fairly often. This was done way long ago when we had a nano challenge to hit spinbot. Turns out pattern matching makes it obsolete anyways. --[[User:Miked0801\|Miked0801]] 04:54, 2 May 2009 (UTC)

← Older revision		Revision as of 00:26, 2 May 2009
Line 29:		Line 29:
	* I'm pretty sure this is just linear targeting. In this equation, aimAngle will always equal circularTravel. -- [[Simonton]]		* I'm pretty sure this is just linear targeting. In this equation, aimAngle will always equal circularTravel. -- [[Simonton]]
	** Hrm dang, I reversed a equation of a circle to help get that. There must be a way to deloop the loop in a circle gun, its just math! But again simonton is far better at delooping things then I am. --[[Chase-san]]		** Hrm dang, I reversed a equation of a circle to help get that. There must be a way to deloop the loop in a circle gun, its just math! But again simonton is far better at delooping things then I am. --[[Chase-san]]
		+
		+	Are there any super-small noniterative nanobotish circular targeting methods? [[User:Awesomeness\|Awesomeness]] 00:26, 2 May 2009 (UTC)

@@ Line 11: / Line 11: @@
 Of course, you should probably just use an AdvancedRobot, or not do circular targeting - if you're trying to enter it into a competition where only [[ExtendsRobot]] is allowed, none of your opponents will be moving in curves. -- [[User:Kawigi|Kawigi]]
-<pre>double TurnRate = (Math.abs(Heading1-Heading2))/(Math.abs(TimeOfHeading1-TimeOfHeading2));</pre>
+<syntaxhighlight>double TurnRate = (Math.abs(Heading1-Heading2))/(Math.abs(TimeOfHeading1-TimeOfHeading2));</syntaxhighlight>
 Hope this helps --[[UnderDark]]
@@ Line 17: / Line 17: @@
 Orbit's Gun
-<pre>
+<syntaxhighlight>
 double absoluteBearing = e.getBearingRadians() + getHeadingRadians();
 double lateralVelocity = e.getVelocity() * Math.sin(e.getHeadingRadians() - absoluteBearing);
@@ Line 25: / Line 25: @@
 double aimAngle = Math.atan2(distance * Math.sin(circularTravel), distance * Math.cos(circularTravel));
 turnGunRightRadians(Utils.normalRelativeAngle(-getGunHeadingRadians() + aimAngle));
-</pre>
+</syntaxhighlight>
 * I'm pretty sure this is just linear targeting.  In this equation, aimAngle will always equal circularTravel.  -- [[User:Simonton|Simonton]]