310 lines
7.5 KiB
Plaintext
310 lines
7.5 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: pl\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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#: train401.languagecode:1
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#, no-wrap
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msgid "E"
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msgstr ""
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#. type: ScriptName-text
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#: train401/scene.txt:1 train401/scene.txt:3
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#, no-wrap
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msgid "train401:Dragster"
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msgstr ""
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#. type: Resume-text
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#: train401/scene.txt:2
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#, no-wrap
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msgid ""
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"train401:Program a progressive deceleration in order to avoid the mines "
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"right behind the goal."
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msgstr ""
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#. type: \b; header
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#: train401-help/tdragst.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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#: train401-help/tdragst.txt:3
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#, no-wrap
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msgid ""
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"Reach the finishing pad (25m in front of you) as fast as possible, using the "
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"instruction <code>motor( , )</code>. You will have to slow down "
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"progressively at the end of the move, otherwise the bot will get blown up on "
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"the <a object|mine>mines</a>."
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msgstr ""
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#. type: Plain text
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#: train401-help/tdragst.txt:5
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#, no-wrap
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msgid ""
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"You could very well write no more than <c/><a cbot|move>move</a>(25);<n/>, "
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"this would work perfectly well. However, the aim of this exercise is to "
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"learn how to use the instruction <code><a cbot|motor>motor</a></code>."
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msgstr ""
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#. type: Plain text
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#: train401-help/tdragst.txt:7
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#, no-wrap
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msgid "This instruction asks for two values:\n"
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msgstr ""
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#. type: Bullet: '1)'
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#: train401-help/tdragst.txt:7
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#, no-wrap
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msgid "The speed of the left-hand motor."
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msgstr ""
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#. type: Bullet: '2)'
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#: train401-help/tdragst.txt:8
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#, no-wrap
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msgid "The speed of the right-hand motor."
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: train401-help/tdragst.txt:11
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#, no-wrap
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msgid "<c/>\tmotor( left, right );"
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msgstr ""
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#. type: Plain text
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#: train401-help/tdragst.txt:13
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#, no-wrap
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msgid "The values must range between -1 and 1:\n"
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msgstr ""
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#. type: Bullet: '-'
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#: train401-help/tdragst.txt:13
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#, no-wrap
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msgid "1 = full throttle backward"
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msgstr ""
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#. type: Plain text
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#: train401-help/tdragst.txt:16
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#, no-wrap
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msgid ""
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" 0 = stop\n"
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" 1 = full throttle forward"
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msgstr ""
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#. type: Plain text
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#: train401-help/tdragst.txt:18
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#, no-wrap
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msgid ""
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"For example, <c/>motor(0.5, 0.5);<n/> will move the motor forward with "
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"half-speed, until new instructions are given to the motors."
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msgstr ""
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#. type: Plain text
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#: train401-help/tdragst.txt:20
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#, no-wrap
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msgid ""
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"With the instruction <c/>motor(0.5, 0.6);<n/>, the bot will move forward "
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"with half-speed, turning at the same time slightly to the left: the "
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"right-hand motor moves a little faster (<code>0.6</code>) than the left-hand "
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"motor (<code>0.5</code>)."
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msgstr ""
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#. type: \b; header
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#: train401-help/tdragst.txt:21
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#, no-wrap
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msgid "General principle"
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msgstr ""
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#. type: Plain text
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#: train401-help/tdragst.txt:24
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#, no-wrap
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msgid ""
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"In order to move forward for exactly 25 meters and not more, you must move "
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"full speed during the first 23 meters, then reduce the speed of the motors "
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"progressively during the last two meters.\n"
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"The <a cbot|var>variable</a> <a cbot|object>position</a> gives you at any "
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"moment the current position of the bot, and the instruction <c/><a "
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"cbot|dist>distance</a>( , );<n/> returns the distance between two "
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"points. The best way to know where you are consists in saving the current "
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"position before the start into a <a cbot|var>variable</a>, for example a "
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"variable called <code>start</code>. Then you can calculate the distance "
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"between the starting position and your current position with "
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"<code>distance(position, start)</code>."
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msgstr ""
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#. type: \b; header
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#: train401-help/tdragst.txt:25
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#, no-wrap
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msgid "The program"
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msgstr ""
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#. type: Bullet: '1)'
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#: train401-help/tdragst.txt:26
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#, no-wrap
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msgid "declare the variables"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: train401-help/tdragst.txt:29
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#, no-wrap
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msgid ""
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"<c/>\tpoint start;\n"
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"\tfloat len;"
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msgstr ""
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#. type: Bullet: '2)'
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#: train401-help/tdragst.txt:30
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#, no-wrap
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msgid "save the starting position"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: train401-help/tdragst.txt:32
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#, no-wrap
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msgid "<c/>\tstart = position;"
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msgstr ""
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#. type: Bullet: '3)'
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#: train401-help/tdragst.txt:33
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#, no-wrap
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msgid "start full throttle :"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: train401-help/tdragst.txt:35
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#, no-wrap
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msgid "<c/>\tmotor(1, 1);"
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msgstr ""
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#. type: Bullet: '4)'
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#: train401-help/tdragst.txt:36
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#, no-wrap
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msgid "Perform an infinite <code><a cbot|while>while</a></code> loop:"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: train401-help/tdragst.txt:45
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#, no-wrap
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msgid ""
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"<c/>\twhile ( true )\n"
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"\t{\n"
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"\t\tlen = distance(position, start);\n"
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"\t\tif ( len > 25-2 )\n"
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"\t\t{\n"
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"\t\t\tmotor( less than before ! );\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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#: train401-help/tdragst.txt:47
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#, no-wrap
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msgid ""
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"As long as the distance between the start and the current position is "
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"smaller than 23m, the instruction in braces after the <code><a "
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"cbot|if>if</a></code> instruction will not be executed, so the motors keep "
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"their maximum speed as they were told by the <c/><a "
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"cbot|motor>motor</a>(1,1);<n/> instruction."
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msgstr ""
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#. type: Plain text
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#: train401-help/tdragst.txt:49
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#, no-wrap
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msgid ""
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"In order to slow down progressively, the speed of the motors must be "
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"proportional to the remaining distance:\n"
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msgstr ""
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#. type: Bullet: 'o'
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#: train401-help/tdragst.txt:49
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#, no-wrap
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msgid "<code>2.0</code> meters left -> speed = <code>1.00</code> (maximum)"
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msgstr ""
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#. type: Bullet: 'o'
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#: train401-help/tdragst.txt:50
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#, no-wrap
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msgid "<code>1.5</code> meters left -> speed = <code>0.75</code>"
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msgstr ""
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#. type: Bullet: 'o'
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#: train401-help/tdragst.txt:51
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#, no-wrap
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msgid "<code>1.0</code> meter left -> speed = <code>0.50</code>"
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msgstr ""
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#. type: Bullet: 'o'
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#: train401-help/tdragst.txt:52
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#, no-wrap
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msgid "<code>0.5</code> meter left -> speed = <code>0.25</code>"
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msgstr ""
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#. type: Bullet: 'o'
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#: train401-help/tdragst.txt:53
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#, no-wrap
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msgid "<code>0.0</code> meter left -> speed = <code>0.00</code> (stop)"
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msgstr ""
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#. type: Image filename
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#: train401-help/tdragst.txt:55
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#, no-wrap
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msgid "tdragst1"
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msgstr ""
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#. type: Plain text
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#: train401-help/tdragst.txt:57
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#, no-wrap
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msgid ""
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"You can use the following <a cbot|expr>expression</a> "
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"<code>(25-len)/2</code> in order to calculate the value for the speed "
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"instruction that must be given to the motors."
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msgstr ""
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#. type: Plain text
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#: train401-help/tdragst.txt:59
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#, no-wrap
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msgid "It is now up to you to put everything together and to test the program."
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msgstr ""
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#. type: \b; header
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#: train401-help/tdragst.txt:60
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#, no-wrap
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msgid "Remark"
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msgstr ""
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#. type: Plain text
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#: train401-help/tdragst.txt:62
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#, no-wrap
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msgid ""
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"You can use values greater than 1 for the instruction <c/><a "
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"cbot|motor>motor</a>();<n/>, but the bot will not move any faster."
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msgstr ""
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#. type: \t; header
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#: train401-help/tdragst.txt:63
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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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#: train401-help/tdragst.txt:64
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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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