Canvas exercises _ Zuma game 01 and canvas exercises Zuma 01
I learned a Demo of Zuma game over the past few days and recorded the compilation process of this game.
1: first, implement a simple interface effect.
2: After drawing, let the black ball move along the circular arc.
Encoding Process
Create a canvas and draw a circular arc.
First, define a
---restore content starts---Newly added elements in HTML5, canvas now supports ie9+ versionNote: HTML5 t).The user should be given a description of the version that must be ie9+ before using canvas, otherwise it is not supported.Draw a simple line1. Get the canvas firstvar canvas = document.getElementById ('
6.4 Canvas-Drawn helper classesBefore facing the introduction of canvas, we understand that canvas can do a lot of things, drawing graphics, transformations, of course, in the mobile phone world we see far from the simple graphics can be full of performance, there are colors, fonts, and other elements of a variety of components, specialized work to the special cl
The magic of canvas and the magic of canvas
Canvas has a magic method, getImageData. It can obtain and change the color values of no pixel in the image within the canvas.
If you have various filter algorithms. You can use canvas to convert the image filter to a function simi
Use canvas to create a cool particle background, and canvas cool
You can use canvas to create a cool particle background. Of course, there are still some libraries available. This time we write this background. The main thing is JS. canvas only has no effect on the canvas it
Canvas makes a detailed description of the dynamic progress loading water polo and instance code, canvas water polo
Canvas dynamic progress loading
Preface
I saw some effects of dynamic loading of the sphere. I always wanted to do one by myself. I just went over a Canvas during this time, so I tried it.
Implementation
Here are 10 HTML5 canvas (canvas) Technical effects demos that will definitely amaze you. Of course, you might also think that the flash technology used in old browsers can do the same. However, the following demos only use the technology in a modern browser, with no need for plug-ins such as Flash or Silverlight. The reduction of this technical threshold will create an indispensable prerequisite for the po
This article brings you to the content of what is the canvas off-screen technology? How is the canvas Magnifier effect implemented? , there is a certain reference value, the need for friends can refer to, I hope you have some help.
Use
canvasIn addition to implementing filters, you can also use
off-screen technologyMagnifier function.
In order to facilitate the explanation, this article is divided into 2 ap
Canvas shadow and graphic transformation sample code, canvas sample code
This article describes the sample code of canvas shadow and graphic transformation. The details are as follows:
I. Shadow settings
1. shadow color: The value is the standard CSS color value. It is used to set the shadow color effect. The default value is full-transparent black.
context.shado
Canvas --- Canvas image loading, using the javascript callback mechanism to implement an image loader, javascriptcanvas
The drawImage method of canvas has a disadvantage, that is, when the image has not been fully loaded, calling it will be ineffective.
Of course, you can ignore this problem directly in the high-speed main loop of the game, or use img. complete =
1.Canvas CanvasCanvas class canvas encapsulates such things as graphics and picture drawing, and these commonly used functions are described below:Drawcolor (int color)Effect: Draw color overlay canvas, often used for brush screenParameters: Color values, also available in 16-in-form notation (ARGB)DrawText (String text,float x,float y,paint Paint)Function: Draw
Simple and cool canvas animation and cool canvas
I wrote my first post as a newbie in an excited and nervous mood and asked everyone to support it. My younger brother thanked me again.The Santa Claus animation is as follows:
The html is as follows:
Javascript is as follows:
// The element defining id as canvas is the variable myCanvasvar myCanvas = document. ge
Comments: This article describes how to draw Rectangles and circles in a canvas. They are basic images. Of course, there are more than basic graphics, but in canvas, only rectangular and circular shapes do not need to be simulated using other methods, interested friends can understand how to draw Rectangles and circles in the canvas. They are basic images. Of cou
Chapter 6 painting with White Paper-Canvas canvas (5)6.4.8 android. graphics. Region and Region. Op
When painting a Canvas, we may encounter a problem where we only need to display a half rectangle or a part of the image. We need to use the Canvas setting area method, including clipRect (Rect rect, Region. op) and clip
Canvas basic learning (3): canvas basic learning
I. image loading controls
Multiple images are often used in canvas effect creation. To improve the user experience, you need to provide users with excessive page effects during image loading. I used Sonic. js in the project, and its address on git is. Is:
The call code is also relatively simple.
The following is
Canvas implements the matrix of black guest empire Rectangles and canvas black guest empire rectangles
In the blog Park, I saw che da bang and wrote an article about implementing the matrix of the matrix. I think canvas still has some wonderful places, so I should take a note to record it.
The implementation result is as follows:
It is really one or two lines of
A summary of the methods of the Paint and Canvas classes in Android, canvas in Android
Common Methods of the Paint class
1. The setColor method is used to set the color of the paint brush,Public void setColor (int color) // The color parameter is the Color value. You can also use the color defined by the color class.Color. BLACK: BLACKColor. BLUE: BLUEColor. CYAN: GreenColor. DKGRAY: Gray-blackColor. YELLOW
Article Introduction: are you still complaining that your canvas demo is hovering below 10 frames? Are you still bothering to open your own writing application and hear the cup fan turn? Are you writing a JavaScript canvas library? So here are nine points you need to know!
Are you still complaining that your canvas demo is hovering below 10 frames? Ar
Detailed description of the canvas-based video mask plug-in, detailed description of the canvas mask
Adds a cover for a video to block a video area. During a certain video period, for example, the area between 10th and 20th minutes is not displayed. Application scenarios include hiding TV icons, blocking advertisements in the lower right corner of the video, and acting as mosaic.
A long video may contain mu
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