308 lines
7.9 KiB
Plaintext
308 lines
7.9 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/chapter003/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/chapter003/level002/scene.txt:1
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#, no-wrap
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msgid "Follow with variables"
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msgstr ""
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#. type: Resume-text
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#: levels/exercises/chapter003/level002/scene.txt:2
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#, no-wrap
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msgid "Use variables in order to store the parameters of the path."
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msgstr ""
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#. type: ScriptName-text
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#: levels/exercises/chapter003/level002/scene.txt:3
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#, no-wrap
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msgid "Move"
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msgstr ""
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#. type: \b; header
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#: levels/exercises/chapter003/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/chapter003/level002/help/help.E.txt:4
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#, no-wrap
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msgid ""
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"This exercise is very similar to the previous one. The bot must move exactly "
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"in the same way, but when writing the program, you must use a new concept "
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"that is extremely important in programming: <a cbot|var>variables</a>.\n"
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"We saw that all the pads are at a distance form each other of 20 meters. And "
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"all the rotations performed consist in 90 degree angles. Instead of "
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"rewriting the same values over and over again in the program, we can store "
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"them in a variable: "
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter003/level002/help/help.E.txt:7
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#, no-wrap
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msgid ""
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"Instead of:\n"
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"<c/><s/>\tmove(20);"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter003/level002/help/help.E.txt:11
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#, no-wrap
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msgid ""
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"\tturn(90);\n"
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"\tmove(20);\n"
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"\tturn(-90);\n"
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"\t..."
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter003/level002/help/help.E.txt:14
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#, no-wrap
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msgid ""
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"We write :\n"
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"<c/><s/>\tdist = 20;"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter003/level002/help/help.E.txt:20
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#, no-wrap
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msgid ""
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"\tdir = 90;\n"
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"\tmove(dist);\n"
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"\tturn(dir);\n"
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"\tmove(dist);\n"
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"\tturn(-dir);\n"
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"\t..."
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msgstr ""
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#. type: \b; header
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#: levels/exercises/chapter003/level002/help/help.E.txt:21
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#, no-wrap
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msgid "Variables"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter003/level002/help/help.E.txt:23
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#, no-wrap
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msgid "A <a cbot|var>variable</a> is composed of three elements: \n"
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msgstr ""
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#. type: Bullet: '1)'
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#: levels/exercises/chapter003/level002/help/help.E.txt:23
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#, no-wrap
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msgid "The name,"
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msgstr ""
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#. type: Bullet: '2)'
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#: levels/exercises/chapter003/level002/help/help.E.txt:24
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#, no-wrap
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msgid "The type of the content,"
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msgstr ""
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#. type: Bullet: '3)'
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#: levels/exercises/chapter003/level002/help/help.E.txt:25
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#, no-wrap
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msgid "The content."
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msgstr ""
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#. type: \t; header
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#: levels/exercises/chapter003/level002/help/help.E.txt:27
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#, no-wrap
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msgid "The name"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter003/level002/help/help.E.txt:29
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#, no-wrap
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msgid ""
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"Use the name to refer to a variable. For example, instead of writing "
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"<c/>move(20);<n/>, write <c/>move(dist);<n/>: \"dist\" is the name of the "
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"variable. You can choose almost any name for a variable, for example "
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"<code>dist</code>, <code>dir</code>, <code>p2</code>, <code>a</code>, "
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"<code>x</code>, <code>nothing_2_grab</code>, etc."
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msgstr ""
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#. type: \t; header
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#: levels/exercises/chapter003/level002/help/help.E.txt:30
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#, no-wrap
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msgid "The type"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter003/level002/help/help.E.txt:32
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#, no-wrap
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msgid ""
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"The type of a variable determines what kind of information the variable can "
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"contain. According to the type, a variable can contain a whole number, a "
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"real number, a character string, the coordinates of a point, etc. Here is a "
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"list with the most common variable types: \n"
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msgstr ""
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#. type: Bullet: 'o'
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#: levels/exercises/chapter003/level002/help/help.E.txt:32
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#, no-wrap
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msgid "<code><a cbot|int>int</a></code> for a whole number (12, -500, etc.)"
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msgstr ""
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#. type: Bullet: 'o'
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#: levels/exercises/chapter003/level002/help/help.E.txt:33
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#, no-wrap
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msgid ""
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"<code><a cbot|float>float</a></code> for a real number (3.14, 0.2, -99.98, "
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"etc.)"
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msgstr ""
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#. type: Bullet: 'o'
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#: levels/exercises/chapter003/level002/help/help.E.txt:34
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#, no-wrap
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msgid ""
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"<code><a cbot|string>string</a></code> for a character string (\"Hello!\", "
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"\"Nothing to grab\", etc.)"
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msgstr ""
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#. type: Bullet: 'o'
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#: levels/exercises/chapter003/level002/help/help.E.txt:35
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#, no-wrap
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msgid ""
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"<code><a cbot|point>point</a></code> for the x,y,z-coordinates of a point in "
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"space"
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msgstr ""
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#. type: Bullet: 'o'
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#: levels/exercises/chapter003/level002/help/help.E.txt:36
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#, no-wrap
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msgid ""
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"<code><a cbot|object>object</a></code> for the information about an object "
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"(bot, building, etc.) "
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msgstr ""
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#. type: \t; header
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#: levels/exercises/chapter003/level002/help/help.E.txt:38
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#, no-wrap
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msgid "The content"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter003/level002/help/help.E.txt:40
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#, no-wrap
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msgid ""
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"The content of a variable can be a number, a string, coordinates, etc., "
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"according to the type of the variable. The content of a variable can change "
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"many times during the execution of a program. "
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter003/level002/help/help.E.txt:42
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#, no-wrap
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msgid ""
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"Before you can use a variable, you have to declare it. For example, before "
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"you can use the two variables <code>dist</code> and <code>dir</code>, you "
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"must declare them with the following lines: "
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter003/level002/help/help.E.txt:45
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#, no-wrap
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msgid ""
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"\tfloat dist;\n"
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"\tfloat dir;"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter003/level002/help/help.E.txt:47
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#, no-wrap
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msgid ""
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"Now you can use the two variables. To put the value 20 into "
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"<code>dist</code> and 90 into <code>dir</code>, write:"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter003/level002/help/help.E.txt:50
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#, no-wrap
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msgid ""
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"\tdist = 20;\n"
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"\tdir = 90;"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter003/level002/help/help.E.txt:52
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#, no-wrap
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msgid ""
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"Now you can move and turn the bot with the instructions <code><a "
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"cbot|move>move</a></code> and <code><a cbot|turn>turn</code></a>:"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter003/level002/help/help.E.txt:55
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#, no-wrap
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msgid ""
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"\tmove(dist);\n"
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"\tturn(dir);"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter003/level002/help/help.E.txt:57
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#, no-wrap
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msgid ""
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"You can also use a whole <a cbot|expr>mathematical expression</a> instead of "
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"just the variable:"
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msgstr ""
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#. type: \s; block (usually verbatim code)
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#: levels/exercises/chapter003/level002/help/help.E.txt:60
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#, no-wrap
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msgid ""
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"\tmove(dist+100);\n"
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"\tturn(-dir);"
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter003/level002/help/help.E.txt:62
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#, no-wrap
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msgid "The latter instruction will be needed to turn the bot right. "
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msgstr ""
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#. type: Plain text
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#: levels/exercises/chapter003/level002/help/help.E.txt:64
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#, no-wrap
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msgid ""
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"Now, rewrite the program of the previous exercise, but use a variable for "
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"the distance and another variable for the angle of the rotation. "
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msgstr ""
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#. type: \t; header
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#: levels/exercises/chapter003/level002/help/help.E.txt:65
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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/chapter003/level002/help/help.E.txt:66
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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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