An warware: zane

Yin aiki tare da HTML Canvas API na iya zama hanya mai daษ—i da lada don ฦ™irฦ™irar zane mai ma'amala kai tsaye akan gidan yanar gizo. Yana ba da zane na bitmap wanda za'a iya sarrafa shi ta amfani da JavaScript, kuma yana da kyakkyawan kayan aiki don ฦ™irฦ™irar wasanni, jadawalai, ko wasu aikace-aikacen yanar gizo inda ake buฦ™atar zane. Koyaya, idan ana batun yin wannan a cikin TypeScript, babban juzu'i na JavaScript, ana buฦ™atar wasu ฦ™arin la'akari.

Da farko, kuna iya mamakin dalilin da yasa ake amfani da TypeScript don zane. Amsar tana cikin tsarin nau'in TypeScript. Yana sa ci gaban JavaScript cikin sauri da ฦ™arfi. Tare da ingantaccen nau'in annotations, zaku iya kamawa da kawar da yuwuwar al'amurra yayin aiwatar da ci gaba maimakon fuskantar su lokacin da lambar ku ke gudana.

[h2] Kafa yanayin Canvas tare da TypeScript[/h2]

Don farawa da Canvas da TypeScript, da farko dole ne ku saita yanayin ku. Wannan ya haษ—a da saita fayil ษ—in HTML ษ—inku tare da sigar zane, shigar da TypeScript, da saita fayil ษ—in daidaitawar TypeScript ษ—in ku.

// Your basic HTML structure would look something like this:
<!DOCTYPE html>
<html>
<body>
    <canvas id="myCanvas" width="500" height="500"></canvas>
    <script src="myCanvasScript.js"></script>
</body>
</html>

Bayan kun shigar da TypeScript, zaku ฦ™irฦ™iri fayil ษ—in tsconfig.json don tantance fayilolin matakin tushen da zaษ“uษ“ษ“ukan mai tarawa da ake buฦ™ata don haษ—a aikinku.

{
    "compilerOptions": {
        "outDir": "./built",
        "allowJs": true,
        "target": "es5"
    },
    "include": [
        "./src/**/*.ts"
    ],
    "exclude": [
        "node_modules"
    ]
}

[h2]Rubuta lambar Canvas a TypeScript[/h2]

Lokacin da kuka shirya don fara coding, ฦ™waฦ™ฦ™waran rubutu na TypeScript ya zo cikin wasa. Misali, lokacin da ake maido da abin nuni ga sashin zane na zane da mahallin zane, kuna buฦ™atar tantance nau'ikan su.

let canvas = <HTMLCanvasElement>document.getElementById('myCanvas');
let context = <CanvasRenderingContext2D>canvas.getContext('2d');

A cikin TypeScript, "valueโ€ syntax yana ba ka damar yin wani nau'i na tabbatarwa, wanda hanya ce ta gaya wa mai tarawa โ€œamince ni, na san abin da nake yiโ€. Sigina ce ga mai tarawa TypeScript don ba ka damar yin ayyuka akan wani abu wanda yawanci ba zai iya tabbatar da lafiya ba.

Mahallin zane shine abin da a zahiri ke ba ka damar zana kan zane. Kowanne zane aiki ana yinsa game da wannan mahallin.

Rubutun Nau'in Rubutun don Canvas Manipulation

Akwai dakunan karatu waษ—anda ke haษ“aka Canvas API tare da fa'idodin TypeScript. Laburaren kamar Konva.js, fabric.js, da p5.js shahararrun zabi ne. Waษ—annan suna ba ku damar yin aiki tare da hadaddun sifofi, hotuna, da hulษ—ar mai amfani ta hanyar da ta fi dacewa.

Kammalawa

A ฦ™arshe, gina zane-zane tare da JavaScript da HTML Canvas API za a iya ฦ™ara ฦ™arfi da ฦ™arfi da Nau'inAbubakar. Fahimtar yadda ake amfani da tsayayyen bugu na TypeScript da nau'ikan nau'ikan nau'ikan ci-gaba - kamar nau'in ikirari - na iya taimaka muku cin gajiyar wannan fasaha.

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