275 lines
7.0 KiB
Plaintext
275 lines
7.0 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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msgid ""
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msgstr ""
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"Project-Id-Version: PACKAGE VERSION\n"
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"Report-Msgid-Bugs-To: \n"
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"POT-Creation-Date: 2014-07-02 12:51+0200\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: ru\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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"X-Generator: Translate Toolkit 1.11.0\n"
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#. type: One-char language identifier
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#: train402.languagecode: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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#: train402/scene.txt:1
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#, no-wrap
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msgid "train402:Radar"
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msgstr ""
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#. type: Resume-text
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#: train402/scene.txt:2
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#, no-wrap
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msgid "train402:Use the radar to find lots of stupid blue crosses."
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msgstr ""
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#. type: ScriptName-text
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#: train402/scene.txt:3
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#, no-wrap
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msgid "train402:Find"
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msgstr ""
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#. type: \b; header
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#: train402-help/tradar1.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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#: train402-help/tradar1.txt:3
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#, no-wrap
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msgid ""
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"Let the bot find all the <a object|waypoint>blue crosses</a> on the "
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"ground. As soon as the bot passed over one of the crosses, it will "
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"disappear. Here is the general principle that you will apply:"
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msgstr ""
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#. type: Plain text
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#: train402-help/tradar1.txt:5
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#, no-wrap
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msgid "Repeat forever:\n"
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msgstr ""
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#. type: Bullet: 'o'
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#: train402-help/tradar1.txt:5
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#, no-wrap
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msgid "Look for a cross"
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msgstr ""
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#. type: Bullet: 'o'
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#: train402-help/tradar1.txt:6
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#, no-wrap
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msgid "If there is none, stop the program."
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msgstr ""
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#. type: Bullet: 'o'
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#: train402-help/tradar1.txt:7
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#, no-wrap
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msgid "Calculate the direction of the cross."
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msgstr ""
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#. type: Bullet: 'o'
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#: train402-help/tradar1.txt:8
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#, no-wrap
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msgid ""
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"Set the speed of the motors in such a way that they will find their way to "
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"the cross."
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msgstr ""
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#. type: \b; header
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#: train402-help/tradar1.txt:10
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#, no-wrap
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msgid "The program"
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msgstr ""
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#. type: Plain text
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#: train402-help/tradar1.txt:12
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#, no-wrap
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msgid ""
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"Use a <code><a cbot|while>while</a></code> loop in order to repeat several "
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"instructions over and over:"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: train402-help/tradar1.txt:16
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#, no-wrap
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msgid ""
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"<code>while ( true )\n"
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"{\n"
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"\t</code>instructions...<c/>\n"
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"}"
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msgstr ""
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#. type: Plain text
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#: train402-help/tradar1.txt:18
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#, no-wrap
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msgid ""
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"The instruction <code><a cbot|radar>radar</a></code> will detect the blue "
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"crosses and put their description into a variable, for example "
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"<code>spot</code>. In this case, <code><a cbot|radar>radar</a>()</code> "
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"needs only one parameter, i.e. the category of the object that it must look "
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"for:"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: train402-help/tradar1.txt:19
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#, no-wrap
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msgid "<c/>spot = radar(WayPoint);"
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msgstr ""
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#. type: Plain text
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#: train402-help/tradar1.txt:21
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#, no-wrap
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msgid ""
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"Once all the crosses have been found, <code>radar</code> will return the "
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"value <code><a cbot|null>null</a></code>. You will have to test this case "
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"and react accordingly with the instruction <code><a cbot|if>if</a></code>:"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: train402-help/tradar1.txt:26
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#, no-wrap
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msgid ""
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"<c/>if ( spot == null ) // no more ?\n"
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"{\n"
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"\tmotor(0, 0); // stops the motors\n"
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"\tbreak; // stops the loop\n"
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"}"
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msgstr ""
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#. type: Plain text
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#: train402-help/tradar1.txt:27
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#, no-wrap
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msgid ""
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"<n/>The instruction <code><a cbot|break>break</a></code> will stop the "
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"infinite loop <code>while (true)</code>."
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msgstr ""
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#. type: Plain text
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#: train402-help/tradar1.txt:29
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#, no-wrap
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msgid ""
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"Use the instruction <code><a cbot|direct>direction</a>()</code> to calculate "
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"the angle of the rotation that the bot must perform in order to turn towards "
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"the blue cross. The coordinates of the object are given by "
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"<code>spot.position</code>. The following line will put the angle of the "
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"necessary rotation into the <a cbot|var>variable</a> <code>dir</code>:"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: train402-help/tradar1.txt:30
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#, no-wrap
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msgid "<c/>dir = direction(spot.position);"
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msgstr ""
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#. type: Plain text
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#: train402-help/tradar1.txt:32
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#, no-wrap
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msgid ""
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"The value of the angle is positive if the blue cross is on your left hand, "
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"and negative if it is on your right hand. If the cross to be reached is on "
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"your left hand, you must set the right-hand motor to full speed, and set the "
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"left-hand motor to a lower speed, according to the angle:"
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msgstr ""
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#. type: Plain text
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#: train402-help/tradar1.txt:38
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#, no-wrap
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msgid ""
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" direction = <code> 0</code> -> speed = <code> 1.0</code>\n"
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" direction = <code> 45</code> -> speed = <code> 0.5</code>\n"
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" direction = <code> 90</code> -> speed = <code> 0.0</code>\n"
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" direction = <code>135</code> -> speed = <code>-0.5</code>\n"
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" direction = <code>180</code> -> speed = <code>-1.0</code>"
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msgstr ""
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#. type: Plain text
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#: train402-help/tradar1.txt:40
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#, no-wrap
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msgid ""
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"The graphic below shows the speed of the left-hand and right-hand motor as "
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"set by the instruction <code><a cbot|motor>motor</a></code>, according to "
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"the angle:"
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msgstr ""
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#. type: Image filename
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#: train402-help/tradar1.txt:41
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#, no-wrap
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msgid "radar2"
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msgstr ""
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#. type: Plain text
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#: train402-help/tradar1.txt:43
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#, no-wrap
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msgid ""
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"If the cross is straight ahead, the angle is 0 degrees. The motors will get "
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"the speeds 1 and 1, which means full speed ahead. If the cross is behind, "
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"the right motor will be set to speed -1: it will turn around. You can use "
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"the <a cbot|expr>expression</a> <code>1+dir/90</code> in order to calculate "
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"the necessary speed of the motors:"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: train402-help/tradar1.txt:47
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#, no-wrap
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msgid ""
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"<c/>if ( dir < 0 ) // on the right side?\n"
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"{\n"
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"\tmotor(1, 1+dir/90); // turns more or less\n"
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"}"
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msgstr ""
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#. type: Plain text
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#: train402-help/tradar1.txt:49
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#, no-wrap
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msgid ""
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"Use the same principle if the angle has got a positive value, ranging "
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"between 0 and 180 degrees. It is up to you to work out the exact "
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"instructions to be performed:"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: train402-help/tradar1.txt:53
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#, no-wrap
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msgid ""
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"<code>else // on the left side?\n"
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"{\n"
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"\t</code>up to you to fill in here...<c/>\n"
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"}"
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msgstr ""
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#. type: Plain text
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#: train402-help/tradar1.txt:55
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#, no-wrap
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msgid ""
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"At the beginning of the program, you must still declare all the "
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"variables. <code>spot</code> is of type <code><a "
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"cbot|object>object</a></code>, whereas <code>dir</code> is of type <code><a "
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"cbot|float>float</a></code>."
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msgstr ""
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#. type: \t; header
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#: train402-help/tradar1.txt:56
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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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#: train402-help/tradar1.txt:57
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#, no-wrap
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msgid ""
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"<a cbot>Programming</a>, <a cbot|type>types</a> and <a "
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"cbot|category>categories</a>."
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msgstr ""
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