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diff --git a/docs/examples/spiral_snake.lua.html b/docs/examples/spiral_snake.lua.html new file mode 100644 index 0000000..7ebb838 --- /dev/null +++ b/docs/examples/spiral_snake.lua.html @@ -0,0 +1,152 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" + "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<html> +<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> +<head> + <title>Lua-System docs</title> + <link rel="stylesheet" href="../ldoc.css" type="text/css" /> +</head> +<body> + +<div id="container"> + +<div id="product"> + <div id="product_logo"></div> + <div id="product_name"><big><b></b></big></div> + <div id="product_description"></div> +</div> <!-- id="product" --> + + +<div id="main"> + + +<!-- Menu --> + +<div id="navigation"> +<br/> +<h1>Lua-System</h1> + + +<ul> + <li><a href="../index.html">Index</a></li> +</ul> + + + +<h2>Examples</h2> +<ul class="nowrap"> + <li><a href="../examples/compat.lua.html">compat.lua</a></li> + <li><a href="../examples/flag_debugging.lua.html">flag_debugging.lua</a></li> + <li><a href="../examples/password_input.lua.html">password_input.lua</a></li> + <li><a href="../examples/read.lua.html">read.lua</a></li> + <li><a href="../examples/readline.lua.html">readline.lua</a></li> + <li><a href="../examples/spinner.lua.html">spinner.lua</a></li> + <li><strong>spiral_snake.lua</strong></li> + <li><a href="../examples/terminalsize.lua.html">terminalsize.lua</a></li> +</ul> +<h2>Modules</h2> +<ul class="nowrap"> + <li><a href="../modules/system.html">system</a></li> +</ul> +<h2>Classes</h2> +<ul class="nowrap"> + <li><a href="../classes/bitflags.html">bitflags</a></li> +</ul> +<h2>Topics</h2> +<ul class=""> + <li><a href="../topics/01-introduction.md.html">1. Introduction</a></li> + <li><a href="../topics/02-development.md.html">2. Development</a></li> + <li><a href="../topics/03-terminal.md.html">3. Terminal functionality</a></li> + <li><a href="../topics/CHANGELOG.md.html">CHANGELOG</a></li> + <li><a href="../topics/LICENSE.md.html">MIT License</a></li> +</ul> + +</div> + +<div id="content"> + + <h2>spiral_snake.lua</h2> +<pre> +<span class="keyword">local</span> sys = <span class="global">require</span> <span class="string">"system"</span> + +<span class="global">print</span> <span class="string">[[ + +This example will draw a snake like spiral on the screen. Showing ANSI escape +codes for moving the cursor around. + +]]</span> + +<span class="comment">-- backup term settings with auto-restore on exit +</span>sys.<span class="function-name">autotermrestore</span>() + +<span class="comment">-- setup Windows console to handle ANSI processing +</span>sys.<span class="function-name">setconsoleflags</span>(<span class="global">io</span>.stdout, sys.<span class="function-name">getconsoleflags</span>(<span class="global">io</span>.stdout) + sys.COF_VIRTUAL_TERMINAL_PROCESSING) + +<span class="comment">-- start drawing the spiral. +</span><span class="comment">-- start from current pos, then right, then up, then left, then down, and again. +</span><span class="keyword">local</span> x, y = <span class="number">1</span>, <span class="number">1</span> <span class="comment">-- current position +</span><span class="keyword">local</span> dx, dy = <span class="number">1</span>, <span class="number">0</span> <span class="comment">-- direction after each step +</span><span class="keyword">local</span> wx, wy = <span class="number">30</span>, <span class="number">30</span> <span class="comment">-- width and height of the room +</span><span class="keyword">local</span> mx, my = <span class="number">1</span>, <span class="number">1</span> <span class="comment">-- margin +</span> +<span class="comment">-- commands to move the cursor +</span><span class="keyword">local</span> move_left = <span class="string">"\27[1D"</span> +<span class="keyword">local</span> move_right = <span class="string">"\27[1C"</span> +<span class="keyword">local</span> move_up = <span class="string">"\27[1A"</span> +<span class="keyword">local</span> move_down = <span class="string">"\27[1B"</span> + +<span class="comment">-- create room: 30 empty lines +</span><span class="global">print</span>((<span class="string">"\n"</span>):<span class="function-name">rep</span>(wy)) +<span class="keyword">local</span> move = move_right + +<span class="keyword">while</span> wx > <span class="number">0</span> <span class="keyword">and</span> wy > <span class="number">0</span> <span class="keyword">do</span> + sys.<span class="function-name">sleep</span>(<span class="number">0.01</span>) <span class="comment">-- slow down the drawing a little +</span> <span class="global">io</span>.<span class="function-name">write</span>(<span class="string">"*"</span> .. move_left .. move ) + <span class="global">io</span>.<span class="function-name">flush</span>() + x = x + dx + y = y + dy + + <span class="keyword">if</span> x > wx <span class="keyword">and</span> move == move_right <span class="keyword">then</span> + <span class="comment">-- end of move right +</span> dx = <span class="number">0</span> + dy = <span class="number">1</span> + move = move_up + wy = wy - <span class="number">1</span> + my = my + <span class="number">1</span> + <span class="keyword">elseif</span> y > wy <span class="keyword">and</span> move == move_up <span class="keyword">then</span> + <span class="comment">-- end of move up +</span> dx = -<span class="number">1</span> + dy = <span class="number">0</span> + move = move_left + wx = wx - <span class="number">1</span> + mx = mx + <span class="number">1</span> + <span class="keyword">elseif</span> x < mx <span class="keyword">and</span> move == move_left <span class="keyword">then</span> + <span class="comment">-- end of move left +</span> dx = <span class="number">0</span> + dy = -<span class="number">1</span> + move = move_down + wy = wy - <span class="number">1</span> + my = my + <span class="number">1</span> + <span class="keyword">elseif</span> y < my <span class="keyword">and</span> move == move_down <span class="keyword">then</span> + <span class="comment">-- end of move down +</span> dx = <span class="number">1</span> + dy = <span class="number">0</span> + move = move_right + wx = wx - <span class="number">1</span> + mx = mx + <span class="number">1</span> + <span class="keyword">end</span> +<span class="keyword">end</span> + +<span class="global">io</span>.<span class="function-name">write</span>(move_down:<span class="function-name">rep</span>(<span class="number">15</span>)) +<span class="global">print</span>(<span class="string">"\nDone!"</span>)</pre> + + +</div> <!-- id="content" --> +</div> <!-- id="main" --> +<div id="about"> +<i>generated by <a href="http://github.com/lunarmodules/LDoc">LDoc 1.5.0</a></i> +<i style="float:right;">Last updated 2024-06-20 23:11:37 </i> +</div> <!-- id="about" --> +</div> <!-- id="container" --> +</body> +</html> |