mirror of
https://github.com/Doodle3D/Doodle3D-Core.git
synced 2024-09-29 01:08:38 +02:00
52 lines
1.5 KiB
JavaScript
52 lines
1.5 KiB
JavaScript
|
import BaseTool from './BaseTool.js';
|
||
|
import { Vector } from 'cal';
|
||
|
import { PIXEL_RATIO } from '../../constants/general.js';
|
||
|
// import createDebug from 'debug';
|
||
|
// const debug = createDebug('d3d:2d:tool:eraser');
|
||
|
export default class BrushTool extends BaseTool {
|
||
|
constructor(dispatch, sceneSpaceContainer, renderRequest) {
|
||
|
super(dispatch, sceneSpaceContainer, renderRequest);
|
||
|
|
||
|
this.mousePosition = new Vector();
|
||
|
this.radius = null;
|
||
|
this.showMouse = false;
|
||
|
}
|
||
|
pointerMove(event) {
|
||
|
this.showMouse = event.pointerType === 'mouse';
|
||
|
if (this.showMouse) {
|
||
|
this.mousePosition.set(event.clientX, event.clientY);
|
||
|
this.renderRequest();
|
||
|
}
|
||
|
}
|
||
|
pointerOut() {
|
||
|
this.showMouse = false;
|
||
|
this.renderRequest();
|
||
|
}
|
||
|
update(state) {
|
||
|
const eraserState = state.d2.brush;
|
||
|
if (this.radius !== eraserState.size) {
|
||
|
this.radius = eraserState.size;
|
||
|
return true;
|
||
|
}
|
||
|
return false;
|
||
|
}
|
||
|
draw(context) {
|
||
|
if (!this.showMouse) return;
|
||
|
|
||
|
const x = this.mousePosition.x * PIXEL_RATIO;
|
||
|
const y = this.mousePosition.y * PIXEL_RATIO;
|
||
|
// not really happy with this.parent.sx * this.parent.parent.sx;
|
||
|
const radius = this.radius * PIXEL_RATIO * this.parent.sx * this.parent.parent.sx;
|
||
|
const color = '#72bcd4';
|
||
|
const alpha = this.erasing ? 1.0 : 0.25;
|
||
|
const lineWidth = 2.0 * PIXEL_RATIO;
|
||
|
|
||
|
context.strokeStyle = color;
|
||
|
context.globalAlpha = alpha;
|
||
|
context.lineWidth = lineWidth;
|
||
|
context.beginPath();
|
||
|
context.arc(x, y, radius, 0, Math.PI * 2.0);
|
||
|
context.stroke();
|
||
|
}
|
||
|
}
|