Experimenting with a bigtrak layout

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Re: Experimenting with a bigtrak layout Golden Child #122754 09/27/23 04:07 AM
Joined: Feb 2014 Posts: 1,072 Likes: 148 G Golden Child OP Very Senior Member
OP Golden Child Very Senior Member G Joined: Feb 2014 Posts: 1,072 Likes: 148	There was also a Russian clone of the Big Trak, the Elektronika IM-11. It's kind of cool because it has additional lights on the front and back to show the motor activations, and the OUT command will make a flying disc pop up.

Re: Experimenting with a bigtrak layout Golden Child #122755 09/27/23 02:24 PM
Joined: May 2004 Posts: 1,766 Likes: 33 H Haze Very Senior Member
Haze Very Senior Member H Joined: May 2004 Posts: 1,766 Likes: 33	there's hope for that Bomb Disposal Robot yet http://mamedev.emulab.it/haze/

Re: Experimenting with a bigtrak layout Golden Child #122756 09/27/23 07:58 PM
Joined: Oct 2020 Posts: 35 Likes: 6 MrBogi Member
MrBogi Member Joined: Oct 2020 Posts: 35 Likes: 6	I welcome our robot overlords

Re: Experimenting with a bigtrak layout Golden Child #122758 09/29/23 10:36 PM
Joined: Feb 2014 Posts: 1,072 Likes: 148 G Golden Child OP Very Senior Member
OP Golden Child Very Senior Member G Joined: Feb 2014 Posts: 1,072 Likes: 148	I noticed that there was a driver for the Incredible Brain Buggy aka bcheetah, so why not make a keypad for that as well: What's kind of interesting is that the drive motor starts up for a moment then shuts off before it does a command. In programming mode, you press buttons simultaneously, like fwd + 2 to go forward for 1 second, left + 4 for left turn for 2 seconds. Switching to run mode makes the forward, left and right buttons immediate.

Re: Experimenting with a bigtrak layout Golden Child #122760 09/30/23 10:45 PM
Joined: Feb 2014 Posts: 1,072 Likes: 148 G Golden Child OP Very Senior Member
OP Golden Child Very Senior Member G Joined: Feb 2014 Posts: 1,072 Likes: 148	Found a nice picture of the cheetah control pad at http://www.computercars.de/car/bandai_cheetah

Re: Experimenting with a bigtrak layout Golden Child #122776 10/01/23 06:17 PM
Joined: Feb 2014 Posts: 1,072 Likes: 148 G Golden Child OP Very Senior Member
OP Golden Child Very Senior Member G Joined: Feb 2014 Posts: 1,072 Likes: 148	hap simplified the keypad taking the file size from 9911 to 5915 bytes:

Re: Experimenting with a bigtrak layout Golden Child #122777 10/04/23 02:10 AM
Joined: Feb 2014 Posts: 1,072 Likes: 148 G Golden Child OP Very Senior Member
OP Golden Child Very Senior Member G Joined: Feb 2014 Posts: 1,072 Likes: 148	One way to generate rotation is to use the <g> tag in an <svg> and use the transform="rotate(deg centerx centery)". It doesn't take a lot of lua code to generate the different images for each rotation: Code function tagbegin(b,t,t1) return "<"..b.." "..t.."=\""..t1.."\">" end function tagend(b) return "</"..b..">" end template = [===[ <image state="~state~"><data><![CDATA[ <svg viewBox="-54 -41.5 158 158" xmlns="http://www.w3.org/2000/svg"> <g transform="rotate(~rot~)" fill="white" > <polygon points="0,0 70,0 100,20 100,55 70,75 0,75" /> </g> </svg> ]]></data></image> ]===] dirs=32 out = tagbegin("element","name","bigtrak") for state=0,dirs-1 do out = out..template:gsub("~state~",string.format(state,"%d")):gsub("~rot~",string.format(360/dirs*state,"%d").." 25 37.5") end out = out..tagend("element") print(#out) print(out) so this will make 32 different directional images for 360 degrees, and the output will look like: <element name="bigtrak"><image state="0"><data><![CDATA[ <svg viewBox="-54 -41.5 158 158" xmlns="http://www.w3.org/2000/svg"> <g transform="rotate(0.0 25 37.5)" fill="white" > <polygon points="0,0 70,0 100,20 100,55 70,75 0,75" /> </g> </svg> ]]></data></image> <image state="1"><data><![CDATA[ <svg viewBox="-54 -41.5 158 158" xmlns="http://www.w3.org/2000/svg"> <g transform="rotate(11.25 25 37.5)" fill="white" > <polygon points="0,0 70,0 100,20 100,55 70,75 0,75" /> </g> </svg> ]]></data></image> ...

Re: Experimenting with a bigtrak layout Golden Child #122778 10/04/23 03:30 AM
Joined: Feb 2014 Posts: 1,072 Likes: 148 G Golden Child OP Very Senior Member
OP Golden Child Very Senior Member G Joined: Feb 2014 Posts: 1,072 Likes: 148	32 directions just isn't enough for smooth rotational motion. I went back to 360 directions, and experimenting with some values for speed and turnrate makes it turn.

Re: Experimenting with a bigtrak layout Golden Child #122788 10/07/23 11:52 AM
Joined: Feb 2014 Posts: 1,072 Likes: 148 G Golden Child OP Very Senior Member
OP Golden Child Very Senior Member G Joined: Feb 2014 Posts: 1,072 Likes: 148	So I thought it'd be interesting to be able to do a repeat inside of an element tag so you could do something like the following, and it took me quite a while to figure out how that all worked: The way it's structured is that you can do a repeat outside of an element tag, but not a repeat inside of an element. Inside of an element, it only expects to see layout components like image, rect, text, etc. Since the processing for the element happens inside the constructor layout_element::layout_element, I made another routine to handle the repeat so when it sees this repeat tag it calls this repeat routine and handles the components inside (mainly just a copy of the regular constructor code, but processing the param tags). Then I just use the environment expand routine on the get_data of the svg, and it will do the parameter expansion. The hardest part was getting it to work was in the little details, since set_repeat_parameter takes a boolean and effectively doesn't do anything if that boolean is false. So on the first pass of the repeat this boolean should be true and then false for the succeeding passes since the increment routine does all the updating. Code <element name="bigtrak"> <repeat count="360"> <param name="angle" start="0" increment="1"/> <param name="rotang" start="0.0" increment="1"/> <image state="~angle~"><data><![CDATA[ <svg viewBox="-54 -41.5 158 158" xmlns="http://www.w3.org/2000/svg"> <g transform="rotate(~rotang~ 25 37.5)" fill="white" > <polygon points="0,0 70,0 100,20 100,55 70,75 0,75" /> </g> </svg> ]]></data></image> </repeat> </element> Now to experiment and see if I can make my idea of a parameter list work.

Re: Experimenting with a bigtrak layout

Golden Child #122789 10/08/23 03:06 PM

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Golden Child Online Content

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Golden Child

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So if I use commas as a delimiter and break them into pieces, then I can increment a counter to get the next piece every time it gets accessed.

So my original concept was to just be able to do a replacement of a single variable, but that didn't work as expected.

Due to the pattern of constructor order, the linear order of ~a~ in the file gets jumbled. So inputmask will get processed before inputtag and they get out of order.

So this won't work.

Code

<param name="a" value="keyproref,IN.0,0x2,6,0,12,8,keygoref,IN.1,0x8,30,0,8,8,keyleftref,IN.1,0x1,0,10,8,8,keyfwdref,IN.1,0x2,10,10,8,8,
keyrightref,IN.1,0x4,20,10,8,8,keystopref,IN.2,0x8,30,10,8,8,key1ref,IN.3,0x2,0,20,8,8,key2ref,IN.3,0x8,10,20,8,8,
key3ref,IN.4,0x2,20,20,8,8,key4ref,IN.4,0x8,30,20,8,8" />
<repeat count="10">
	<element ref="~a~" inputtag="~a~" inputmask="~a~">
		<bounds x="~a~" y="~a~" width="~a~" height="~a~" />
	</element>
  </repeat>

So the solution is to use different parameter variables which will only get accessed once per pass of the repeat:

It's probably better in that the value string gets quite long otherwise.

Code


<param name="aref" value="keyproref,keygoref,keyleftref,keyfwdref,keyrightref,keystopref,key1ref,key2ref,key3ref,key4ref"/>
<param name="atag" value="IN.0,IN.1,IN.1,IN.1,IN.1,IN.2,IN.3,IN.3,IN.4,IN.4"/>
<param name="amask" value="0x2,0x8,0x1,0x2,0x4,0x8,0x2,0x8,0x2,0x8"/>
<param name="ax" value="6,30,0,10,20,30,0,10,20,30"/>
<param name="ay" value="0,0,10,10,10,10,20,20,20,20"/>
<param name="awidth" value="12,8,8,8,8,8,8,8,8,8"/>
<param name="aheight" value="8"/>

<repeat count="10">
<element ref="~aname~" inputtag="~atag~" inputmask="~amask~">
	<bounds x="~ax~" y="~ay~" width="~awidth~" height="~aheight~" />
</element>
 </repeat>

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