110 lines
3.8 KiB
JavaScript
110 lines
3.8 KiB
JavaScript
// SPDX-FileCopyrightText: 2021 Johannes Loher
|
|
//
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
import { packageName } from '../config';
|
|
|
|
/**
|
|
* Translate the token's sight distance in units into a radius in pixels.
|
|
* @return {number} The sight radius in pixels
|
|
*/
|
|
export function getDimRadius() {
|
|
const dimSight = getDimVision.call(this);
|
|
let r = Math.abs(this.data.dimLight) > Math.abs(dimSight) ? this.data.dimLight : dimSight;
|
|
return this.getLightRadius(r);
|
|
}
|
|
|
|
/**
|
|
* Translate the token's bright light distance in units into a radius in pixels.
|
|
* @return {number} The bright radius in pixels
|
|
*/
|
|
export function getBrightRadius() {
|
|
const brightSight = getBrightVision.call(this);
|
|
let r = Math.abs(this.data.brightLight) > Math.abs(brightSight) ? this.data.brightLight : brightSight;
|
|
return this.getLightRadius(r);
|
|
}
|
|
|
|
/**
|
|
* Update an Token vision source associated for this token.
|
|
* @param {boolean} [defer] Defer refreshing the LightingLayer to manually call that refresh later.
|
|
* @param {boolean} [deleted] Indicate that this vision source has been deleted.
|
|
* @param {boolean} [skipUpdateFog] Never update the Fog exploration progress for this update.
|
|
*/
|
|
export function updateVisionSource({ defer = false, deleted = false, skipUpdateFog = false } = {}) {
|
|
// Prepare data
|
|
const origin = this.getSightOrigin();
|
|
const sourceId = this.sourceId;
|
|
const d = canvas.dimensions;
|
|
const isVisionSource = this._isVisionSource();
|
|
|
|
// Initialize vision source
|
|
if (isVisionSource && !deleted) {
|
|
const dimSight = getDimVision.call(this);
|
|
const brightSight = getBrightVision.call(this);
|
|
let dim = Math.min(this.getLightRadius(dimSight), d.maxR);
|
|
const bright = Math.min(this.getLightRadius(brightSight), d.maxR);
|
|
this.vision.initialize({
|
|
x: origin.x,
|
|
y: origin.y,
|
|
dim: dim,
|
|
bright: bright,
|
|
angle: this.data.sightAngle,
|
|
rotation: this.data.rotation,
|
|
});
|
|
canvas.sight.sources.set(sourceId, this.vision);
|
|
}
|
|
|
|
// Remove vision source
|
|
else canvas.sight.sources.delete(sourceId);
|
|
|
|
// Schedule a perception update
|
|
if (!defer && (isVisionSource || deleted))
|
|
canvas.perception.schedule({
|
|
sight: { refresh: true, skipUpdateFog },
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Does this {@link Token} have dim vision, considering the darkness level of
|
|
* its containing {@link Scene}?
|
|
*/
|
|
function hasDimVision() {
|
|
const dimVisionDarknessMin = this.document.getFlag(packageName, 'dimVisionDarknessMin') ?? 0;
|
|
const dimVisionDarknessMax = this.document.getFlag(packageName, 'dimVisionDarknessMax') ?? 1;
|
|
const darkness = this.document.parent.data.darkness;
|
|
return dimVisionDarknessMin <= darkness && darkness <= dimVisionDarknessMax;
|
|
}
|
|
|
|
/**
|
|
* Does this {@link Token} have bright vision, considering the darkness level of
|
|
* its containing {@link Scene}?
|
|
*/
|
|
function hasBrightVision() {
|
|
const brightVisionDarknessMin = this.document.getFlag(packageName, 'brightVisionDarknessMin') ?? 0;
|
|
const brightVisionDarknessMax = this.document.getFlag(packageName, 'brightVisionDarknessMax') ?? 1;
|
|
const darkness = this.document.parent.data.darkness;
|
|
return brightVisionDarknessMin <= darkness && darkness <= brightVisionDarknessMax;
|
|
}
|
|
|
|
/**
|
|
* Get this {@link Token}'s dim vision distance of in grid units, considering
|
|
* the darkness level of its containing {@link Scene}.
|
|
*
|
|
* @returns {number} The the number of grid units that this {@link Token} has
|
|
* dim vision
|
|
*/
|
|
function getDimVision() {
|
|
return hasDimVision.call(this) ? this.data.dimSight : 0;
|
|
}
|
|
|
|
/**
|
|
* Get this {@link Token}'s bright vision distance in grid units, considering
|
|
* the darkness level of its containing {@link Scene}.
|
|
*
|
|
* @returns {number} The the number of grid units that this {@link Token} has
|
|
* bright vision
|
|
*/
|
|
function getBrightVision() {
|
|
return hasBrightVision.call(this) ? this.data.brightSight : 0;
|
|
}
|