User talk:Jdev - Revision history

Jdev: Kamikadze challenge

2011-06-23T06:33:26Z

Kamikadze challenge

RednaxelaBot: Using .

2010-07-01T08:42:21Z

Using <syntaxhighlight>.

Jdev: robocode API issue

2010-06-22T19:01:54Z

robocode API issue

Jdev: Thank you, Rednaxela!

2010-06-17T19:51:13Z

Thank you, Rednaxela!

Rednaxela: reply

2010-06-17T19:30:22Z

Jdev: Nobody can help me?

2010-06-17T16:49:33Z

Nobody can help me?

Jdev: formatting fix

2010-06-08T15:57:19Z

formatting fix

Jdev: Help request: code review

2010-06-08T15:55:10Z

Help request: code review

Jdev: reply

2010-03-18T12:53:55Z

Rednaxela: reply

2010-03-18T12:19:42Z

← Older revision		Revision as of 06:33, 23 June 2011
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	So be careful and don't repeat my mistakes) --[[User:Jdev\|Jdev]] 19:01, 22 June 2010 (UTC)		So be careful and don't repeat my mistakes) --[[User:Jdev\|Jdev]] 19:01, 22 June 2010 (UTC)
		+
		+	----
		+	'''Kamikadze challenge:)'''
		+
		+	Today while I tweaking my tank movement i've made a bug, so my robot began perfectly catch enemy bullets by his body:) When i seen this, i thought about kamikadze challenge - the goal of challenger is take as many hits as possible:) --[[User:Jdev\|Jdev]] 06:33, 23 June 2011 (UTC)

@@ Line 82: / Line 82: @@
 hi to all. i have a bug in my radar code and cannot fix it.
 Code:
-<pre>
+<syntaxhighlight>
              LXXPoint enemyPos = lastUpdated.getPosition();
              double radarTurnDirection = signum(Utils.normalRelativeAngle((angleTo(enemyPos) - getRadarHeadingRadians())));
@@ Line 102: / Line 102: @@
              lastRadarTurnDirection = (int) radarTurnDirection;
-</pre>
+</syntaxhighlight>
 log:

← Older revision		Revision as of 19:01, 22 June 2010
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	Thank you very much! It's the answer. I read it in javadocs, but because my english skill dont understood it correctly:) --[[User:Jdev\|Jdev]] 19:51, 17 June 2010 (UTC)		Thank you very much! It's the answer. I read it in javadocs, but because my english skill dont understood it correctly:) --[[User:Jdev\|Jdev]] 19:51, 17 June 2010 (UTC)
		+
		+	----
		+
		+	Just collaboration:
		+	Method Rules.getTurnRateRadians(velocity) return correct values (real possible turn rates), only if the velocity is in interval [0, 8] and it returns incorrect values for arguments like -16, -8, -2, 10, 15 etc.
		+
		+	So be careful and don't repeat my mistakes) --[[User:Jdev\|Jdev]] 19:01, 22 June 2010 (UTC)

← Older revision		Revision as of 19:51, 17 June 2010
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	Hm, sorry I didn't look at this close enough before but I think I see the problem. Robocode is behaving correctly, however one must realize that Rules.RADAR_TURN_RATE_RADIANS is the maxiumum radar turning rate ''relative'' to the gun turret, and the max gun turret rotation is relative to the body rotation. Even if you use setAdjustGunForRobotTurn(true) and setAdjustRadarForGunTurn(true), the maximum turn still depends on how much the gun and body are moving. One quick note, is to my knowledge very few bots take advantage of this. One of the few being my melee bot [[Glacier]], which uses gun turning when not firing in order to boost how wide a radar arc it can make. --[[User:Rednaxela\|Rednaxela]] 19:30, 17 June 2010 (UTC)		Hm, sorry I didn't look at this close enough before but I think I see the problem. Robocode is behaving correctly, however one must realize that Rules.RADAR_TURN_RATE_RADIANS is the maxiumum radar turning rate ''relative'' to the gun turret, and the max gun turret rotation is relative to the body rotation. Even if you use setAdjustGunForRobotTurn(true) and setAdjustRadarForGunTurn(true), the maximum turn still depends on how much the gun and body are moving. One quick note, is to my knowledge very few bots take advantage of this. One of the few being my melee bot [[Glacier]], which uses gun turning when not firing in order to boost how wide a radar arc it can make. --[[User:Rednaxela\|Rednaxela]] 19:30, 17 June 2010 (UTC)
		+
		+	Thank you very much! It's the answer. I read it in javadocs, but because my english skill dont understood it correctly:) --[[User:Jdev\|Jdev]] 19:51, 17 June 2010 (UTC)

← Older revision		Revision as of 19:30, 17 June 2010
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	Just update --[[User:Jdev\|Jdev]] 16:49, 17 June 2010 (UTC)		Just update --[[User:Jdev\|Jdev]] 16:49, 17 June 2010 (UTC)
	----		----
		+
		+	Hm, sorry I didn't look at this close enough before but I think I see the problem. Robocode is behaving correctly, however one must realize that Rules.RADAR_TURN_RATE_RADIANS is the maxiumum radar turning rate ''relative'' to the gun turret, and the max gun turret rotation is relative to the body rotation. Even if you use setAdjustGunForRobotTurn(true) and setAdjustRadarForGunTurn(true), the maximum turn still depends on how much the gun and body are moving. One quick note, is to my knowledge very few bots take advantage of this. One of the few being my melee bot [[Glacier]], which uses gun turning when not firing in order to boost how wide a radar arc it can make. --[[User:Rednaxela\|Rednaxela]] 19:30, 17 June 2010 (UTC)

← Older revision		Revision as of 16:49, 17 June 2010
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	--[[User:Jdev\|Jdev]] 15:55, 8 June 2010 (UTC)		--[[User:Jdev\|Jdev]] 15:55, 8 June 2010 (UTC)

		+	Just update --[[User:Jdev\|Jdev]] 16:49, 17 June 2010 (UTC)
	----		----

@@ Line 120: / Line 120: @@
 </pre>
-it seems like bug in robocode, but i think, if it was so, then this bug was already fixed
+it seems like bug in robocode, but i think, if it was so, then this bug was already fixed.
 Most part of time, this code works fine, but in rare and unknown envorinment it's produce log like upper
 Any suggestions?:)
 --[[User:Jdev|Jdev]] 15:55, 8 June 2010 (UTC)
 ----

← Older revision		Revision as of 15:55, 8 June 2010
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	ok, let's it will be so - i'm not sure in it so much, to disput about it) --[[User:Jdev\|Jdev]] 12:53, 18 March 2010 (UTC)		ok, let's it will be so - i'm not sure in it so much, to disput about it) --[[User:Jdev\|Jdev]] 12:53, 18 March 2010 (UTC)
		+
		+
		+	----
		+
		+	hi to all. i have a bug in my radar code and cannot fix it.
		+	Code:
		+	<pre>
		+	LXXPoint enemyPos = lastUpdated.getPosition();
		+	double radarTurnDirection = signum(Utils.normalRelativeAngle((angleTo(enemyPos) - getRadarHeadingRadians())));
		+	if (Utils.isNear(radarTurnDirection, 0)) {
		+	radarTurnDirection = 1;
		+	}
		+	System.out.println("===========================");
		+	System.out.println("[DEBUG]: radar turn direction = " + radarTurnDirection);
		+	System.out.println("[DEBUG]: Angle to enemyPos = " + toDegrees(angleTo(enemyPos)));
		+	System.out.println("[DEBUG]: radar heading = " + toDegrees(getRadarHeadingRadians()));
		+	double radarTurnAngle = Utils.normalRelativeAngle((angleTo(enemyPos) + (Rules.RADAR_TURN_RATE_RADIANS / 2) * radarTurnDirection) -
		+	getRadarHeadingRadians());
		+	System.out.println("[DEBUG]: radarTurnAngle = " + toDegrees(radarTurnAngle));
		+	if (abs(radarTurnAngle) > Rules.RADAR_TURN_RATE_RADIANS) {
		+	radarTurnAngle = Rules.RADAR_TURN_RATE_RADIANS * radarTurnDirection * 0.99;
		+	System.out.println("[DEBUG]: radarTurnAngle = " + toDegrees(radarTurnAngle));
		+	}
		+	setTurnRadarRightRadians(radarTurnAngle);
		+
		+	lastRadarTurnDirection = (int) radarTurnDirection;
		+	</pre>
		+
		+	log:
		+	<pre>
		+
		+	===========================
		+	radar turn direction = -1.0
		+	Angle to p = 237.94483339133959
		+	radar heading = 260.4730460891953
		+	angle = -45.02821269785571
		+	angle = -44.550000000000004 - turn radar on 44 degrees
		+	===========================
		+	radar turn direction = 1.0
		+	Angle to p = 237.95354219349272
		+	radar heading = 235.44087274677435 - but in fact 260.47304608919535 - 235.44087274677435 = 25 degrees
		+	angle = 25.012669446718338
		+	</pre>
		+
		+	it seems like bug in robocode, but i think, if it was so, then this bug was already fixed
		+	Most part of time, this code works fine, but in rare and unknown envorinment it's produce log like upper
		+	Any suggestions?:)
		+	--[[User:Jdev\|Jdev]] 15:55, 8 June 2010 (UTC)
		+
		+	----

← Older revision		Revision as of 12:53, 18 March 2010
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	If you're talking about against random movers, that IS the gambler's fallacy. If you're talking about bots with varied but non-random (or poorly randomized) movement, then yes it could work out in some scenarios but not because of why you said. If you flip a coin, and by luck get 'heads' 5 times in a row, your chance of getting 'tails' next is still 50/50, no higher. --[[User:Rednaxela\|Rednaxela]] 12:19, 18 March 2010 (UTC)		If you're talking about against random movers, that IS the gambler's fallacy. If you're talking about bots with varied but non-random (or poorly randomized) movement, then yes it could work out in some scenarios but not because of why you said. If you flip a coin, and by luck get 'heads' 5 times in a row, your chance of getting 'tails' next is still 50/50, no higher. --[[User:Rednaxela\|Rednaxela]] 12:19, 18 March 2010 (UTC)
		+
		+
		+	ok, let's it will be so - i'm not sure in it so much, to disput about it) --[[User:Jdev\|Jdev]] 12:53, 18 March 2010 (UTC)

← Older revision		Revision as of 12:19, 18 March 2010
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	I'm not complectly agree. For example you have HOT and Circular guns. One will hit enemy in corners, while another in else situations. so if you hit by one gun some times, it's time to switch gun. But may be there're too much trivial example. Any way, i think that it's better to share an idea) --[[User:Jdev\|Jdev]] 07:53, 18 March 2010 (UTC)		I'm not complectly agree. For example you have HOT and Circular guns. One will hit enemy in corners, while another in else situations. so if you hit by one gun some times, it's time to switch gun. But may be there're too much trivial example. Any way, i think that it's better to share an idea) --[[User:Jdev\|Jdev]] 07:53, 18 March 2010 (UTC)
		+
		+	If you're talking about against random movers, that IS the gambler's fallacy. If you're talking about bots with varied but non-random (or poorly randomized) movement, then yes it could work out in some scenarios but not because of why you said. If you flip a coin, and by luck get 'heads' 5 times in a row, your chance of getting 'tails' next is still 50/50, no higher. --[[User:Rednaxela\|Rednaxela]] 12:19, 18 March 2010 (UTC)