radial-status-effects.js

/*
MIT License

Copyright (c) 2022 Dorako

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

https://github.com/Dorako/pf2e-dorako-ux/blob/main/LICENSE
*/

import { MODULE, CONSTANTS } from './constants.js'
import { getSetting, registerSetting } from './utils.js'

/**
 * Register
 */
export function register () {
    registerSettings()
    registerPatches()
}

/**
 * Register settings
 */
function registerSettings () {
    registerSetting(
        CONSTANTS.RADIAL_STATUS_EFFECTS.SETTING.KEY,
        {
            name: game.i18n.localize('CUSTOM_DND5E.setting.radialStatusEffects.name'),
            hint: game.i18n.localize('CUSTOM_DND5E.setting.radialStatusEffects.hint'),
            scope: 'world',
            config: true,
            requiresReload: true,
            type: Boolean,
            default: false
        }
    )
}

/**
 * Register patches
 */
function registerPatches () {
    if (!getSetting(CONSTANTS.RADIAL_STATUS_EFFECTS.SETTING.KEY)) return

    libWrapper.register(MODULE.ID, 'Token.prototype._refreshEffects', tokenRefreshEffectsPatch, 'WRAPPER')
    libWrapper.register(MODULE.ID, 'Token.prototype._drawEffect', tokenDrawEffectPatch, 'WRAPPER')
    libWrapper.register(MODULE.ID, 'Token.prototype._drawOverlay', tokenDrawOverlayPatch, 'WRAPPER')
}

function tokenRefreshEffectsPatch (wrapped, ...args) {
    wrapped(...args)

    let i = 0
    const gridSize = this.scene?.grid?.size ?? 100
    const bg = this.effects.bg.clear()

    for (const effect of this.effects.children) {
        if (effect === bg) continue

        // Overlay effect
        if (effect === this.effects.overlay) continue

        // Status effect
        else {
            effect.anchor.set(0.5)
            const iconScale = getIconScale(Math.min(this.document?.height, this.document?.width))
            const gridScale = gridSize / 100
            const scaledSize = 12 * iconScale * gridScale

            effect.width = scaledSize
            effect.height = scaledSize

            updateIconPosition(effect, i, this)
            drawBackground(effect, bg, gridScale)
            i++
        }
    }
}

async function tokenDrawEffectPatch (wrapped, src, tint, overlay = false) {
    wrapped(null, tint)

    if (!src) return

    const tex = await loadTexture(src, { fallback: 'icons/svg/hazard.svg' })
    const icon = new PIXI.Sprite(tex)
    icon.tint = tint ?? 0xFFFFFF

    if (!overlay && !src.endsWith('.svg')) {
        const size = Math.min(icon.width, icon.height)
        const radius = size / 2

        const mask = new PIXI.Graphics()
        mask.beginFill(0xffffff)
        mask.drawCircle(0, 0, radius)
        mask.endFill()
        icon.addChild(mask)
        icon.mask = mask
    }

    return this.effects.addChild(icon)
}

async function tokenDrawOverlayPatch (wrapped, src, tint) {
    wrapped(null, tint)

    const icon = await this._drawEffect(src, tint, true)
    if (icon) icon.alpha = 0.8
    this.effects.overlay = icon ?? null
    return icon
}

function getIconScale (size) {
    if (size >= 2.5) return size / 2
    if (size >= 1.5) return size * 0.7
    return 1.4
}

function updateIconPosition (icon, index, token) {
    const max = getMaxIcons(token)
    const ratio = index / max
    const gridSize = token?.scene?.grid?.size ?? 100
    const tokenTileFactor = token?.document?.width ?? 1
    const sizeOffset = getSizeOffset(Math.min(token?.document?.height, token?.document?.width))
    const offset = sizeOffset * tokenTileFactor * gridSize
    const initialRotation = (0.5 + (1 / max) * Math.PI) * Math.PI

    const { x, y } = polarToCartesian(offset, (ratio + 0) * 2 * Math.PI + initialRotation)

    const halfGridSize = gridSize * tokenTileFactor / 2

    icon.position.x = x / 2 + halfGridSize
    icon.position.y = -y / 2 + halfGridSize
}

function getMaxIcons (token) {
    if (token?.document.width < 1) return 9
    if (token?.document.width === 1) return 16
    if (token?.document.width === 2) return 28
    return 40
}

function getSizeOffset (size) {
    if (size < 1) return 1.4
    if (size === 1) return 1.25
    if (size === 2) return 1.125
    return 1.075
}

function polarToCartesian (radius, angle) {
    return {
        x: radius * Math.cos(angle),
        y: radius * Math.sin(angle)
    }
}

/**
 * Draw background
 * @param {string} icon
 * @param {*} background
 * @param {*} gridScale
 */
function drawBackground (icon, background, gridScale) {
    const radius = (icon.width) / 2 + (icon.width * 0.1)
    background.beginFill(0x333333)
    background.drawCircle(icon.position.x, icon.position.y, radius)
    background.endFill()
    background.lineStyle((2 * gridScale) / 2, 0x9f9275, 1, 0.5)
    background.drawCircle(icon.position.x, icon.position.y, radius)
    background.lineStyle(0)
}