Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 3x 3x 1x 1x 2x 10x 10x 10x 10x 10x 10x 10x 10x 10x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 3x 2x 2x 1x | import { random } from "@jga/algorithms";
import { ComponentName, isPositionComponent, isSpreadComponent } from "../components";
import { Entity } from "../entities";
import { World } from "../world";
import { System } from "./system";
export class SpreadSystem extends System {
public constructor(entities: Map<string, Entity>) {
super(entities, [ComponentName.SPREAD, ComponentName.POSITION]);
}
public run(world: World): void {
return this.entities.forEach((entity): void => {
const spreadComponent = entity.getComponent(ComponentName.SPREAD);
const positionComponent = entity.getComponent(ComponentName.POSITION);
if (
isSpreadComponent(spreadComponent) &&
isPositionComponent(positionComponent) &&
spreadComponent.getRemainingGrowth() > 0 &&
random(0, 100) <= 10
) {
// Generate the coordinates of a random adjacent square by
// generating an offset between [-1, 0, 1] for both the x and
// y directions. To do this, we generate a number from 0-2 and then
// subtract 1.
const xOffset = random(0, 2) - 1;
const yOffset = random(0, 2) - 1;
const xSpread = positionComponent.getPosition().x + xOffset;
const ySpread = positionComponent.getPosition().y + yOffset;
// Make sure we aren't trying to spawn on the same tile as us
if ((xOffset !== 0 || yOffset !== 0) && world.isEmptyFloor({ x: xSpread, y: ySpread })) {
// Check if we can actually spawn at that location, and if so
// then we grow!
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const spreadEntity = world
.getEntityFactory()
.create(
`${entity.getId()}-spread-${spreadComponent.getRemainingGrowth()}`,
spreadComponent.getSpreadedName(),
);
const spreadEntityPosition = spreadEntity.getComponent(ComponentName.POSITION);
if (isPositionComponent(spreadEntityPosition)) {
spreadEntityPosition.setPosition({
x: xSpread,
y: ySpread,
});
}
const spreadEntitySpread = spreadEntity.getComponent(ComponentName.SPREAD);
if (isSpreadComponent(spreadEntitySpread)) {
spreadEntitySpread.spread();
}
world.addEntity(spreadEntity);
}
}
});
}
}
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