72 lines
2.2 KiB
JavaScript
72 lines
2.2 KiB
JavaScript
import Component from '@/ecs/component.js';
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export default class Wielder extends Component {
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instanceFromSchema() {
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const Instance = super.instanceFromSchema();
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const Component = this;
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Instance.prototype.activeItem = async function () {
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const {Inventory, Wielder} = Component.ecs.get(this.entity);
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return Inventory.item(Wielder.activeSlot + 1);
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};
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Instance.prototype.project = function(position, projection) {
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const {TileLayers: {layers: [layer]}} = Component.ecs.get(1);
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const {Direction: {direction}} = Component.ecs.get(this.entity);
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let startX = position.x;
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let startY = position.y;
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switch (direction) {
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case 0:
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startX += projection.distance[1];
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startY -= projection.distance[0];
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break;
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case 1:
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startX += projection.distance[0];
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startY += projection.distance[1];
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break;
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case 2:
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startX -= projection.distance[1];
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startY += projection.distance[0];
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break;
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case 3:
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startX -= projection.distance[0];
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startY -= projection.distance[1];
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break;
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}
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const projected = [];
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for (const row in projection.grid) {
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const columns = projection.grid[row];
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for (const column in columns) {
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const targeted = projection.grid[row][column];
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if (targeted) {
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let axe;
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switch (direction) {
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case 0:
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axe = [column, row];
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break;
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case 1:
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axe = [-row, column];
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break;
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case 2:
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axe = [-column, -row];
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break;
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case 3:
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axe = [row, -column];
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break;
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}
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const x = startX + parseInt(axe[0]);
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const y = startY + parseInt(axe[1]);
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if (x < 0 || y < 0 || x >= layer.area.x || y >= layer.area.y) {
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continue;
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}
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projected.push({x, y});
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}
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}
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}
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return projected;
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}
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return Instance;
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}
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static properties = {
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activeSlot: {type: 'uint16'},
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};
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}
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