422 lines
11 KiB
Plaintext
422 lines
11 KiB
Plaintext
# SOME DESCRIPTIVE TITLE
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# Copyright (C) YEAR Free Software Foundation, Inc.
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# This file is distributed under the same license as the PACKAGE package.
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# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
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#
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#, fuzzy
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msgid ""
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msgstr ""
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"Project-Id-Version: PACKAGE VERSION\n"
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"POT-Creation-Date: DATE\n"
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"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
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"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
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"Language-Team: LANGUAGE <LL@li.org>\n"
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"Language: \n"
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"MIME-Version: 1.0\n"
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"Content-Type: text/plain; charset=UTF-8\n"
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"Content-Transfer-Encoding: 8bit\n"
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#. type: One-char language identifier
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#: levels-po/exercises/chapter007/level002/scene_langchar.txt:1
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#, no-wrap
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msgid "E"
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msgstr ""
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#. type: Title-text
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#: levels/exercises/chapter007/level002/scene.txt:1
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#, no-wrap
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msgid "Remote control #4"
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msgstr ""
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#. type: Resume-text
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#: levels/exercises/chapter007/level002/scene.txt:2
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#, no-wrap
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msgid ""
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"Remote control a bot without using an information exchange post by defining "
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"a class for the orders."
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msgstr ""
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#. type: ScriptName-text
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#: levels/exercises/chapter007/level002/scene.txt:3
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#, no-wrap
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msgid "Remote4"
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msgstr ""
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#. type: \b; header
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#: levels/exercises/chapter007/level002/help/help.E.txt:1
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#, no-wrap
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msgid "Exercise"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:3
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#, no-wrap
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msgid ""
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"Remote control a slave robot without using an <a object|exchange>information "
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"exchange post</a>. The robot should pass over the 6 blue crosses. You must "
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"use a <code><a cbot|static>static</a></code> variable to pass the orders to "
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"the slave bot."
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:5
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#, no-wrap
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msgid "The two main actors of this exercise are:\n"
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msgstr ""
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#. type: Bullet: '1)'
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#: levels/exercises/chapter007/level002/help/help.E.txt:5
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#, no-wrap
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msgid ""
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"The <a object|botgr>wheeled grabber</a> without an energy pack and therefore "
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"immobile. This is the master you should program so it will transmit orders "
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"to the slave."
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msgstr ""
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#. type: Bullet: '2)'
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#: levels/exercises/chapter007/level002/help/help.E.txt:6
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#, no-wrap
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msgid ""
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"The slave <a object|bottr>practice bot</a> which is already programmed and "
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"just waits for orders from the master."
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msgstr ""
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#. type: \b; header
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#: levels/exercises/chapter007/level002/help/help.E.txt:8
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#, no-wrap
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msgid "The slave"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:10
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#, no-wrap
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msgid ""
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"First of all we must understand how the program of the slave works. The <a "
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"cbot|class>class</a> <code>order</code> contains two members: "
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"<code>m_type</code> is the order to execute (move or turn) and "
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"<code>m_param</code> is the distance to move or the rotation angle¦:"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:12
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#, no-wrap
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msgid "<c/><s/><a cbot|public>public</a> <a cbot|class>class</a> order"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter007/level002/help/help.E.txt:16
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#, no-wrap
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msgid ""
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"{\n"
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"\t<a cbot|int>int</a> m_type = <a cbot|nan>nan</a>;\n"
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"\t<a cbot|float>float</a> m_param;\n"
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"}"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:18
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#, no-wrap
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msgid ""
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"A second <a cbot|class>class</a> <code>exchange</code> contains the "
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"mechanism for exchanging the orders. We declare a <code><a "
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"cbot|static>static</a></code> class member <code>m_order</code> which will "
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"contain the order to be executed. The word <code>static</code> insures that "
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"the member <code>m_order</code> is shared between all instances of the <a "
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"cbot|class>class</a> exchange."
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:20
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#, no-wrap
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msgid "<c/><s/><a cbot|public>public</a> <a cbot|class>class</a> exchange"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter007/level002/help/help.E.txt:22
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#, no-wrap
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msgid ""
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"{\n"
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"\t<a cbot|static>static</a> <a cbot|private>private</a> order m_order = new "
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"order;"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:24
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#, no-wrap
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msgid ""
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"<n/>The <code>put</code> method will be used by the master robot for "
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"transmitting an order. As long as <code>m_order</code> is different from "
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"<code><a cbot|nan>nan</a></code>, the slave has not finished the order and "
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"the <code>put</code> method will return <code>false</code> and will do "
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"nothing¦:"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:26
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#, no-wrap
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msgid ""
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"<c/><s/>\t<a cbot|synchro>synchronized</a> <a cbot|bool>bool</a> put(order "
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"a)"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter007/level002/help/help.E.txt:37
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#, no-wrap
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msgid ""
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"\t{\n"
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"\t\tif ( m_order.m_type == nan )\n"
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"\t\t{\n"
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"\t\t\tm_order = a;\n"
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"\t\t\treturn true;\n"
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"\t\t}\n"
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"\t\telse\n"
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"\t\t{\n"
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"\t\t\treturn false;\n"
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"\t\t}\n"
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"\t}"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:39
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#, no-wrap
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msgid ""
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"Another method <code>get</code> will be used by the slave to retrieve the "
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"orders. This method returns the order to be executed:"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:41
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#, no-wrap
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msgid "<c/><s/>\t<a cbot|synchro>synchronized</a> order get()"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter007/level002/help/help.E.txt:44
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#, no-wrap
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msgid ""
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"\t{\n"
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"\t\treturn m_order;\n"
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"\t}"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:46
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#, no-wrap
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msgid ""
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"A third method <code>delete</code> will be used by the slave to indicate "
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"that the order has been executed:"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:48
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#, no-wrap
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msgid "<c/><s/>\t<a cbot|synchro>synchronized</a> void delete()"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter007/level002/help/help.E.txt:52
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#, no-wrap
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msgid ""
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"\t{\n"
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"\t\tm_order.m_type = nan;\n"
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"\t}\n"
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"}"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:54
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#, no-wrap
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msgid ""
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"The main program of the slave contains an instance of the class "
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"<code>exchange</code> called <code>list</code>. We put () after the word "
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"<code>list</code> in order to create an instance of the class "
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"<code>exchange</code>."
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:56
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#, no-wrap
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msgid "<c/><s/><a cbot|extern>extern</a> void object::Slave3( )"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter007/level002/help/help.E.txt:59
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#, no-wrap
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msgid ""
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"{\n"
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"\texchange list();\n"
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"\torder todo;"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:61
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#, no-wrap
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msgid ""
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"The outer <code>while</code> loop lasts for ever. The inner "
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"<code>while</code> loop waits for an order by using the <code>get</code> "
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"method of the <code>exchange</code> class. As soon as <code>get</code> "
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"returns a value different from <code>nan</code>, the while loop stops."
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:63
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#, no-wrap
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msgid "<c/><s/>\t<a cbot|while>while</a> ( true )"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter007/level002/help/help.E.txt:70
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#, no-wrap
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msgid ""
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"\t{\n"
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"\t\t<a cbot|while>while</a> ( true )\n"
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"\t\t{\n"
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"\t\t\ttodo = list.get();\n"
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"\t\t\tif ( todo.m_type != nan ) break;\n"
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"\t\t\twait(1);\n"
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"\t\t}"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:72
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#, no-wrap
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msgid ""
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"Now we have received the order in the <code>todo</code> variable. All we "
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"have to do is execute it:"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:74
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#, no-wrap
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msgid "<c/><s/>\t\tif ( todo.m_type == 1 )"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter007/level002/help/help.E.txt:85
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#, no-wrap
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msgid ""
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"\t\t{\n"
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"\t\t\tmove(todo.m_param);\n"
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"\t\t}\n"
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"\t\telse if ( todo.m_type == 2 )\n"
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"\t\t{\n"
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"\t\t\tturn(todo.m_param);\n"
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"\t\t}\n"
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"\t\telse\n"
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"\t\t{\n"
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"\t\t\tmessage(\"Unknown order\");\n"
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"\t\t}"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:87
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#, no-wrap
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msgid ""
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"As soon as the execution of the order is finished, we must call the "
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"<code>delete</code> method so the master knows that another order can be "
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"sent¦:"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:89
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#, no-wrap
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msgid "<c/><s/>\t\tlist.delete();"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter007/level002/help/help.E.txt:91
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#, no-wrap
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msgid ""
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"\t}\n"
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"}"
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msgstr ""
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#. type: \b; header
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#: levels/exercises/chapter007/level002/help/help.E.txt:92
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#, no-wrap
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msgid "The master"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:94
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#, no-wrap
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msgid ""
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"In the master we write an function called <code>SendOrder</code> which will "
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"send an order to the slave:"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:96
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#, no-wrap
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msgid "<c/><s/>void object::SendOrder(float order, float param)"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter007/level002/help/help.E.txt:108
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#, no-wrap
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msgid ""
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"{\n"
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"\texchange list();\n"
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"\torder todo();\n"
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"\t\n"
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"\ttodo.m_type = order;\n"
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"\ttodo.m_param = param;\n"
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"\t\n"
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"\twhile ( list.put(todo) == false )\n"
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"\t{\n"
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"\t\twait(1);\n"
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"\t}\n"
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"}"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:111
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#, no-wrap
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msgid ""
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"The <code>while</code> loop waits until a pending order has been terminated, "
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"that is the slaved has exited from the <code>get</code> method and the "
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"<code>delete</code> method has been called.\n"
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"Now the main program of the master is very simple:"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:113
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#, no-wrap
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msgid "<c/><s/>extern void object::Remote4( )"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter007/level002/help/help.E.txt:124
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#, no-wrap
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msgid ""
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"{\n"
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"\tSendOrder(1, 20); // move(20);\n"
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"\tSendOrder(2, 90); // turn(90);\n"
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"\tSendOrder(1, 20); // move(20);\n"
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"\tSendOrder(2, 90); // turn(90);\n"
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"\tSendOrder(1, 10); // move(10);\n"
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"\tSendOrder(2, 90); // turn(90);\n"
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"\tSendOrder(1, 10); // move(10);\n"
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"\tSendOrder(2,-90); // turn(-90);\n"
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"\tSendOrder(1, 10); // move(10);\n"
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"}"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:126
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#, no-wrap
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msgid "<format key><key help/></format> show these instruction at any time."
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msgstr ""
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#. type: \t; header
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#: levels/exercises/chapter007/level002/help/help.E.txt:128
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#, no-wrap
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msgid "See also"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter007/level002/help/help.E.txt:129
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#, no-wrap
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msgid "<a command>Controls</a> and <a cbot>programming</a>."
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msgstr ""
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