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Diffstat (limited to 'manuals/chickadee/Particles.html')
| -rw-r--r-- | manuals/chickadee/Particles.html | 51 |
1 files changed, 20 insertions, 31 deletions
diff --git a/manuals/chickadee/Particles.html b/manuals/chickadee/Particles.html index 35a6b61..bded6e5 100644 --- a/manuals/chickadee/Particles.html +++ b/manuals/chickadee/Particles.html @@ -1,6 +1,6 @@ <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> -<!-- Copyright (C) 2017, 2018, 2019 David Thompson davet@gnu.org +<!-- Copyright (C) 2017-2020 David Thompson davet@gnu.org Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 @@ -18,7 +18,7 @@ Foundation Web site at http://www.gnu.org/licenses/fdl.html. The document was typeset with http://www.texinfo.org/ (GNU Texinfo). --> -<!-- Created by GNU Texinfo 6.5, http://www.gnu.org/software/texinfo/ --> +<!-- Created by GNU Texinfo 6.6, http://www.gnu.org/software/texinfo/ --> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>Particles (The Chickadee Game Toolkit)</title> @@ -32,29 +32,20 @@ http://www.texinfo.org/ (GNU Texinfo). <link href="Index.html#Index" rel="index" title="Index"> <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> <link href="Graphics.html#Graphics" rel="up" title="Graphics"> -<link href="Blending.html#Blending" rel="next" title="Blending"> +<link href="3D-Models.html#g_t3D-Models" rel="next" title="3D Models"> <link href="Fonts.html#Fonts" rel="prev" title="Fonts"> <style type="text/css"> <!-- a.summary-letter {text-decoration: none} blockquote.indentedblock {margin-right: 0em} -blockquote.smallindentedblock {margin-right: 0em; font-size: smaller} -blockquote.smallquotation {font-size: smaller} div.display {margin-left: 3.2em} div.example {margin-left: 3.2em} div.lisp {margin-left: 3.2em} -div.smalldisplay {margin-left: 3.2em} -div.smallexample {margin-left: 3.2em} -div.smalllisp {margin-left: 3.2em} kbd {font-style: oblique} pre.display {font-family: inherit} pre.format {font-family: inherit} pre.menu-comment {font-family: serif} pre.menu-preformatted {font-family: serif} -pre.smalldisplay {font-family: inherit; font-size: smaller} -pre.smallexample {font-size: smaller} -pre.smallformat {font-family: inherit; font-size: smaller} -pre.smalllisp {font-size: smaller} span.nolinebreak {white-space: nowrap} span.roman {font-family: initial; font-weight: normal} span.sansserif {font-family: sans-serif; font-weight: normal} @@ -89,14 +80,12 @@ ul.no-bullet {list-style: none} </head> <body lang="en"> -<a name="Particles"></a> -<div class="header"> +<span id="Particles"></span><div class="header"> <p> -Next: <a href="Blending.html#Blending" accesskey="n" rel="next">Blending</a>, Previous: <a href="Fonts.html#Fonts" accesskey="p" rel="prev">Fonts</a>, Up: <a href="Graphics.html#Graphics" accesskey="u" rel="up">Graphics</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Index.html#Index" title="Index" rel="index">Index</a>]</p> +Next: <a href="3D-Models.html#g_t3D-Models" accesskey="n" rel="next">3D Models</a>, Previous: <a href="Fonts.html#Fonts" accesskey="p" rel="prev">Fonts</a>, Up: <a href="Graphics.html#Graphics" accesskey="u" rel="up">Graphics</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Index.html#Index" title="Index" rel="index">Index</a>]</p> </div> <hr> -<a name="Particles-1"></a> -<h4 class="subsection">2.3.6 Particles</h4> +<span id="Particles-1"></span><h4 class="subsection">2.3.7 Particles</h4> <p>Effects like smoke, fire, sparks, etc. are often achieved by animating lots of little, short-lived sprites known as “particles”. In fact, @@ -132,7 +121,7 @@ at the coordinates <code>(320, 240)</code>: <p>To see all of the tweakable knobs and switches, read on! </p> <dl> -<dt><a name="index-make_002dparticles"></a>Procedure: <strong>make-particles</strong> <em>capacity [#:blend-mode <code>alpha</code>] [#:color white] [#:end-color transparent] [#:texture] [#:animation-rows 1] [#:animation-columns 1] [#:width] [#:height] [#:speed-range (vec2 0.1 1.0)] [#:acceleration-range (vec2 0.0 0.1)] [#:direction-range (vec2 0 (* 2 pi))] [#:lifetime 30] [#:sort]</em></dt> +<dt id="index-make_002dparticles">Procedure: <strong>make-particles</strong> <em>capacity [#:blend-mode <code>alpha</code>] [#:color white] [#:end-color transparent] [#:texture] [#:animation-rows 1] [#:animation-columns 1] [#:width] [#:height] [#:speed-range (vec2 0.1 1.0)] [#:acceleration-range (vec2 0.0 0.1)] [#:direction-range (vec2 0 (* 2 pi))] [#:lifetime 30] [#:sort]</em></dt> <dd> <p>Return a new particle system that may contain up to <var>capacity</var> particles. Achieving the desired particle effect involves tweaking @@ -187,27 +176,27 @@ applied at all. </p></dd></dl> <dl> -<dt><a name="index-particles_003f"></a>Procedure: <strong>particles?</strong> <em>obj</em></dt> +<dt id="index-particles_003f">Procedure: <strong>particles?</strong> <em>obj</em></dt> <dd><p>Return <code>#t</code> if <var>obj</var> is a particle system. </p></dd></dl> <dl> -<dt><a name="index-update_002dparticles"></a>Procedure: <strong>update-particles</strong> <em>particles</em></dt> +<dt id="index-update_002dparticles">Procedure: <strong>update-particles</strong> <em>particles</em></dt> <dd><p>Advance the simulation of <var>particles</var>. </p></dd></dl> <dl> -<dt><a name="index-draw_002dparticles"></a>Procedure: <strong>draw-particles</strong> <em>particles</em></dt> +<dt id="index-draw_002dparticles">Procedure: <strong>draw-particles</strong> <em>particles</em></dt> <dd><p>Render <var>particles</var>. </p></dd></dl> <dl> -<dt><a name="index-draw_002dparticles_002a"></a>Procedure: <strong>draw-particles*</strong> <em>particles matrix</em></dt> +<dt id="index-draw_002dparticles_002a">Procedure: <strong>draw-particles*</strong> <em>particles matrix</em></dt> <dd><p>Render <var>particles</var> with <var>matrix</var> applied. </p></dd></dl> <dl> -<dt><a name="index-make_002dparticle_002demitter"></a>Procedure: <strong>make-particle-emitter</strong> <em>spawn-area rate [duration]</em></dt> +<dt id="index-make_002dparticle_002demitter">Procedure: <strong>make-particle-emitter</strong> <em>spawn-area rate [duration]</em></dt> <dd> <p>Return a new particle emitter that spawns <var>rate</var> particles per frame within <var>spawn-area</var> (a rectangle or 2D vector) for @@ -216,45 +205,45 @@ emitter will spawn particles indefinitely. </p></dd></dl> <dl> -<dt><a name="index-particle_002demitter_003f"></a>Procedure: <strong>particle-emitter?</strong> <em>obj</em></dt> +<dt id="index-particle_002demitter_003f">Procedure: <strong>particle-emitter?</strong> <em>obj</em></dt> <dd><p>Return <code>#t</code> if <var>obj</var> is a particle emitter. </p></dd></dl> <dl> -<dt><a name="index-particle_002demitter_002dspawn_002darea"></a>Procedure: <strong>particle-emitter-spawn-area</strong> <em>emitter</em></dt> +<dt id="index-particle_002demitter_002dspawn_002darea">Procedure: <strong>particle-emitter-spawn-area</strong> <em>emitter</em></dt> <dd><p>Return the spawn area for <var>emitter</var>. </p></dd></dl> <dl> -<dt><a name="index-particle_002demitter_002drate"></a>Procedure: <strong>particle-emitter-rate</strong> <em>emitter</em></dt> +<dt id="index-particle_002demitter_002drate">Procedure: <strong>particle-emitter-rate</strong> <em>emitter</em></dt> <dd><p>Return the number of particles that <var>emitter</var> will spawn per frame. </p></dd></dl> <dl> -<dt><a name="index-particle_002demitter_002dlife"></a>Procedure: <strong>particle-emitter-life</strong> <em>emitter</em></dt> +<dt id="index-particle_002demitter_002dlife">Procedure: <strong>particle-emitter-life</strong> <em>emitter</em></dt> <dd><p>Return the number of frames remaining in <var>emitter</var>’s lifespan. </p></dd></dl> <dl> -<dt><a name="index-particle_002demitter_002ddone_003f"></a>Procedure: <strong>particle-emitter-done?</strong> <em>emitter</em></dt> +<dt id="index-particle_002demitter_002ddone_003f">Procedure: <strong>particle-emitter-done?</strong> <em>emitter</em></dt> <dd><p>Return <code>#t</code> if <var>emitter</var> has finished spawning particlces. </p></dd></dl> <dl> -<dt><a name="index-add_002dparticle_002demitter"></a>Procedure: <strong>add-particle-emitter</strong> <em>particles emitter</em></dt> +<dt id="index-add_002dparticle_002demitter">Procedure: <strong>add-particle-emitter</strong> <em>particles emitter</em></dt> <dd><p>Add <var>emitter</var> to <var>particles</var>. </p></dd></dl> <dl> -<dt><a name="index-remove_002dparticle_002demitter"></a>Procedure: <strong>remove-particle-emitter</strong> <em>particles emitter</em></dt> +<dt id="index-remove_002dparticle_002demitter">Procedure: <strong>remove-particle-emitter</strong> <em>particles emitter</em></dt> <dd><p>Remove <var>emitter</var> to <var>particles</var> </p></dd></dl> <hr> <div class="header"> <p> -Next: <a href="Blending.html#Blending" accesskey="n" rel="next">Blending</a>, Previous: <a href="Fonts.html#Fonts" accesskey="p" rel="prev">Fonts</a>, Up: <a href="Graphics.html#Graphics" accesskey="u" rel="up">Graphics</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Index.html#Index" title="Index" rel="index">Index</a>]</p> +Next: <a href="3D-Models.html#g_t3D-Models" accesskey="n" rel="next">3D Models</a>, Previous: <a href="Fonts.html#Fonts" accesskey="p" rel="prev">Fonts</a>, Up: <a href="Graphics.html#Graphics" accesskey="u" rel="up">Graphics</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Index.html#Index" title="Index" rel="index">Index</a>]</p> </div> |