Dynamic Drawing of Facial Features
This is a demo named "Loop-Face" designed to dynamically draw facial features (eyes and mouth) on an HTML canvas. This code functions as a demo that animates the movement of the mouth and eyes on the canvas, changing facial expressions.
The overview of the code is as follows:
-
The
initialize
function takes anHTMLCanvasElement
, obtains the 2D context, and moves the drawing origin to the center of the canvas. It initializesLoop
objects representing the mouth and the right eye and uses animation frames to achieve the motion. -
The
step
function is executed for each frame of the animation, updating the positions of the mouth and eyes based on the elapsed time, and resetting their positions at random intervals. It also draws black circles at the eye positions to represent pupils. -
The
Loop
class manages shapes based on given points and radii, with methods to update the current and next positions of each point. ThesetPositions
method repositions points randomly, and theupdate
method gradually moves current points toward the next points. -
The
drawCurve
function is a helper function that connects points with smooth curves and draws them.