- A = [xA, yA] is a point on the 2D plane. Same for B, C, ...
- lengths are in any unit (ex: pixels)
- code snippets are in JavaScript
angleRad = angleDeg * Math.PI / 180;
/** | |
* \brief Returns positional offset for a given point as a result of summing 4 gerstner waves | |
* \param positionWS point in world space | |
* \param wavelengths wavelength of each of the 4 waves | |
* \param amplitudes amplitudes of each of the 4 waves | |
* \param directions direction of each of the 4 waves (each row = one direction). MUST BE NORMALIZED! | |
* \param speed global speed multiplier. Individual wave speed depends on Wavelength | |
* \param steepness Gerstner wave 'Steepness' parameter. Modulates the horizontal offset of points | |
* \param normal returns the normal of given point. | |
* \return positional offset of the given point |
AccessModifierOffset: 2 | |
AlignAfterOpenBracket: true | |
AlignConsecutiveAssignments: true | |
AlignConsecutiveDeclarations: true | |
AlignEscapedNewlines: Right | |
AlignOperands: true | |
AlignTrailingComments: true | |
AllowAllParametersOfDeclarationOnNextLine: true | |
AllowShortBlocksOnASingleLine: false | |
AllowShortCaseLabelsOnASingleLine: true |
I made an HTML port of game of life made with a table of checkboxes based on Pluralsight's Play by Play: HTML, CSS, and JavaScript with Lea Verou (http://www.pluralsight.com/courses/play-by-play-lea-verou). I was able to create a cool mousedown interface that allowed the "player" to draw on the board by dragging the mouse while it was down, and wanted to do the same for touch devices.
Unfortunately, touch events only hold references to the DOM element where they began (i.e. where "touchstart" fired) and do not recognize the DOM elements that exist under them (a detailed explanation for this can be found here: http://stackoverflow.com/questions/4550427/prefered-alternative-to-onmouseover-for-touch).
Instead, touch events maintain several lists of Touch objects - which represent interactions with the touch screen. Among these objects' properties are clientX and clientY, which indicate the X and Y coordinates of the events relative to the viewport (go to http://www.javascriptkit.com/javatutors/touchevents.shtm
Steps needed to start IE7/8/9 testing on OSX with VirtualBox
/** | |
* Polyfill for the vw, vh, vm units | |
* Requires StyleFix from -prefix-free http://leaverou.github.com/prefixfree/ | |
* @author Lea Verou | |
*/ | |
(function() { | |
if(!window.StyleFix) { | |
return; |