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2 Commits

Author SHA1 Message Date
Alexander Popov b43b67ecac
update tiled sprite draw 2023-04-30 18:34:17 +03:00
Alexander Popov e5b1498955
update example 2023-04-30 17:47:06 +03:00
3 changed files with 45 additions and 10 deletions

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@ -1,5 +1,6 @@
**/.git
**/node_modules
**/dist
*.html
*.css

View File

@ -104,26 +104,62 @@ export class TiledSprite extends Sprite {
return -1;
}
// draw single image
context.drawImage(this.image(), this.x, this.y);
let copyUpByY = Math.ceil(this.y / this.image().height);
let copyUpByX = Math.ceil(this.y / this.image().width);
let copyDownByY = Math.ceil(
(context.canvas.height - this.y - this.image().height) / this.image().height
);
let copyDownByX = Math.ceil(
(context.canvas.width - this.y - this.image().width) / this.image().width
);
for (let i = 0; i <= copyUpByY; i++) {
for (let iy = 0; iy <= copyUpByY; iy++) {
if (copyUpByY === Infinity) {
break;
}
context.drawImage(this.image(), this.x, this.y - this.image().height * i);
for (let ix = 0; ix <= copyUpByX + 1; ix++) {
if (copyUpByX === Infinity) {
break;
}
context.drawImage(
this.image(),
this.x - this.image().width * ix,
this.y - this.image().height * iy
);
context.drawImage(
this.image(),
this.x + this.image().width * ix,
this.y - this.image().height * iy
);
}
}
for (let i = 0; i <= copyDownByY; i++) {
for (let iy = 0; iy <= copyDownByY; iy++) {
if (copyDownByY === Infinity) {
break;
}
context.drawImage(this.image(), this.x, this.y + this.image().height * i);
for (let ix = 0; ix <= copyUpByX + 1; ix++) {
if (copyUpByX === Infinity) {
break;
}
context.drawImage(
this.image(),
this.x - this.image().width * ix,
this.y + this.image().height * iy
);
context.drawImage(
this.image(),
this.x + this.image().width * ix,
this.y + this.image().height * iy
);
}
}
}
}

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@ -1,6 +1,4 @@
import { App } from './app.js';
import { Scene, SceneLayer } from './scene.js';
import { Rect, StrokeRect, Sprite } from './objects.js';
import { App, Scene, SceneLayer, Rect, StrokeRect, Sprite } from './engine.js';
// init player
let Player = {
@ -21,14 +19,14 @@ let layerBg = new SceneLayer('background', [
]);
let layerHud = new SceneLayer('hud', [
new Sprite('compass.png', 15, 15),
new Sprite('compass-arrow.png', 27, 21),
new Sprite('/assets/compass.png', 15, 15),
new Sprite('/assets/compass-arrow.png', 27, 21),
]);
let layerInstances = new SceneLayer('Instances', [Player.rect], { debug: true });
// init app
let app = new App(document.querySelector('canvas'), 400, 400);
let app = new App(400, 400);
// init scene
let firstScene = new Scene(app.canvas, app.context, 400, 400);