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"Project-Id-Version: PACKAGE VERSION\n"
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"POT-Creation-Date: 2014-07-02 12:51+0200\n"
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"X-Generator: Translate Toolkit 1.11.0\n"

#. type: One-char language identifier
#: train701.languagecode:1
#, no-wrap
msgid "E"
msgstr ""

#. type: Title-text
#: train701/scene.txt:1
#, no-wrap
msgid "train701:Remote control #3"
msgstr ""

#. type: Resume-text
#: train701/scene.txt:2
#, no-wrap
msgid ""
"train701:Remote control a bot without using an information exchange post by "
"using a string."
msgstr ""

#. type: ScriptName-text
#: train701/scene.txt:3
#, no-wrap
msgid "train701:Remote3"
msgstr ""

#. type: \b; header
#: train701-help/tremote3.txt:1
#, no-wrap
msgid "Exercice"
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:3
#, no-wrap
msgid ""
"Remote control a slave robot without using an <a object|exchange>information "
"exchange post</a>. The robot should pass over the 6 blue crosses. You must "
"use a <a cbot|string>string</a> to pass the orders to the slave bot. This "
"string contains the order the slave shoud execute, for exemple "
"<code>\"move(20)\"</code>. You can see that this is the same syntax as used "
"in the CBOT language but we could have chosen any other syntax for exemple "
"something like <code>\"advance=20\"</code>. The string will be a <code><a "
"cbot|static>static</a></code> class member that will be used to communicate "
"from the master to the slave."
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:5
#, no-wrap
msgid "The two main actors of this exercise are:\n"
msgstr ""

#. type: Bullet: '1)'
#: train701-help/tremote3.txt:5
#, no-wrap
msgid ""
"The <a object|botgr>wheeled grabber</a> without an energy pack and therefore "
"immobile. This is the master you should program so it will transmit orders "
"to the slave."
msgstr ""

#. type: Bullet: '2)'
#: train701-help/tremote3.txt:6
#, no-wrap
msgid ""
"The slave <a object|bottr>practice bot</a> which is already programmed and "
"just waits for orders from the master."
msgstr ""

#. type: \b; header
#: train701-help/tremote3.txt:8
#, no-wrap
msgid "The slave"
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:10
#, no-wrap
msgid ""
"First of all we must understand how the program of the slave works. The <a "
"cbot|class>class</a> <code>exchange</code> contains the mechanism for "
"exchaning the orders. We declare a <code><a cbot|static>static</a></code> "
"class member <code>m_order</code> which will contain the order to be "
"executed. The word <code>static</code> insures that the member "
"<code>m_order</code> is shared between all instances of the <a "
"cbot|class>class</a> exchange."
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:12
#, no-wrap
msgid "<c/><s/><a cbot|public>public</a> <a cbot|class>class</a> exchange"
msgstr ""

#. type: \s; block (usually verbatim code)
#: train701-help/tremote3.txt:14
#, no-wrap
msgid ""
"{\n"
"\t<a cbot|static>static</a> <a cbot|private>private</a> <a "
"cbot|string>string</a> m_order = \"\";"
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:16
#, no-wrap
msgid ""
"<n/>The <code>put</code> method will be used by the master robot for "
"transmitting an order. As long as the string <code>m_order</code> is not "
"empty, the slave has not finished the order and the <code>put</code> method "
"will return <code>false</code> and will do nothing."
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:18
#, no-wrap
msgid ""
"<c/><s/>\t<a cbot|synchro>synchronized</a> <a cbot|bool>bool</a> put(string "
"order)"
msgstr ""

#. type: \s; block (usually verbatim code)
#: train701-help/tremote3.txt:29
#, no-wrap
msgid ""
"\t{\n"
"\t\tif ( m_order == \"\" )\n"
"\t\t{\n"
"\t\t\tm_order = order;\n"
"\t\t\treturn true;\n"
"\t\t}\n"
"\t\telse\n"
"\t\t{\n"
"\t\t\treturn false;\n"
"\t\t}\n"
"\t}"
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:31
#, no-wrap
msgid ""
"Another method <code>get</code> will be used by the slave to retrieve the "
"orders. This method returns the string contained in <code>m_order</code> and "
"empties it, so a new order can be accepted:"
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:33
#, no-wrap
msgid "<c/><s/>\t<a cbot|synchro>synchronized</a> string get()"
msgstr ""

#. type: \s; block (usually verbatim code)
#: train701-help/tremote3.txt:39
#, no-wrap
msgid ""
"\t{\n"
"\t\tstring ret = m_order;\n"
"\t\tm_order = \"\";\n"
"\t\treturn ret;\n"
"\t}\n"
"}"
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:41
#, no-wrap
msgid ""
"The main program of the slave contains an instance of the class "
"<code>exchange</code> called <code>list</code>."
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:43
#, no-wrap
msgid "<c/><s/><a cbot|extern>extern</a> void object::Slave3( )"
msgstr ""

#. type: \s; block (usually verbatim code)
#: train701-help/tremote3.txt:46
#, no-wrap
msgid ""
"{\n"
"\texchange list();\n"
"\tstring   todo;"
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:48
#, no-wrap
msgid ""
"The outer <code>while</code> loop lasts for ever. The inner "
"<code>while</code> loop waits for an order by using the <code>get</code> "
"method of the <code>exchange</code> class. As soon as <code>get</code> "
"returns a non empty string, the while loop stops."
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:50
#, no-wrap
msgid "<c/><s/>\t<a cbot|while>while</a> ( true )"
msgstr ""

#. type: \s; block (usually verbatim code)
#: train701-help/tremote3.txt:57
#, no-wrap
msgid ""
"\t{\n"
"\t\t<a cbot|while>while</a> ( true )\n"
"\t\t{\n"
"\t\t\ttodo = list.get();\n"
"\t\t\tif ( todo != \"\" )  break;\n"
"\t\t\twait(1);\n"
"\t\t}"
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:59
#, no-wrap
msgid ""
"Now we have received the order in the <code>todo</code> variable. All we "
"have to do is execute it:"
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:61
#, no-wrap
msgid "<c/><s/>\t\tif ( <a cbot|strfind>strfind</a>(todo, \"move\") == 0 )"
msgstr ""

#. type: \s; block (usually verbatim code)
#: train701-help/tremote3.txt:70
#, no-wrap
msgid ""
"\t\t{\n"
"\t\t\tmove(<a cbot|strval>strval</a>(<a cbot|strmid>strmid</a>(todo,5)));\n"
"\t\t}\n"
"\t\tif ( strfind(todo, \"turn\") == 0 )\n"
"\t\t{\n"
"\t\t\tturn(strval(strmid(todo,5)));\n"
"\t\t}\n"
"\t}\n"
"}"
msgstr ""

#. type: \b; header
#: train701-help/tremote3.txt:71
#, no-wrap
msgid "The master"
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:73
#, no-wrap
msgid ""
"In the master we write an function called <code>SendOrder</code> which will "
"send an order to the slave:"
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:75
#, no-wrap
msgid "<c/><s/>void object::SendOrder(string order)"
msgstr ""

#. type: \s; block (usually verbatim code)
#: train701-help/tremote3.txt:83
#, no-wrap
msgid ""
"{\n"
"\texchange list();\n"
"\t\n"
"\twhile ( list.put(order) == false )\n"
"\t{\n"
"\t\twait(1);\n"
"\t}\n"
"}"
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:86
#, no-wrap
msgid ""
"The <code>while</code> loop waits until a pending order has been terminated, "
"that is the slaved has exited from the <code>get</code> method.\n"
"Now the main program of the master is very simple:"
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:88
#, no-wrap
msgid "<c/><s/>extern void object::Remote3( )"
msgstr ""

#. type: \s; block (usually verbatim code)
#: train701-help/tremote3.txt:99
#, no-wrap
msgid ""
"{\n"
"\tSendOrder(\"move(20)\");\n"
"\tSendOrder(\"turn(90)\");\n"
"\tSendOrder(\"move(20)\");\n"
"\tSendOrder(\"turn(90)\");\n"
"\tSendOrder(\"move(10)\");\n"
"\tSendOrder(\"turn(90)\");\n"
"\tSendOrder(\"move(10)\");\n"
"\tSendOrder(\"turn(-90)\");\n"
"\tSendOrder(\"move(10)\");\n"
"}"
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:101
#, no-wrap
msgid "<format key><key help/></format> show these instruction at any time."
msgstr ""

#. type: \t; header
#: train701-help/tremote3.txt:102
#, no-wrap
msgid "See also"
msgstr ""

#. type: Plain text
#: train701-help/tremote3.txt:103
#, no-wrap
msgid "<a command>Controls</a> and <a cbot>programming</a>."
msgstr ""