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 69 70 71 72 73 74 75 76 77 | 11x 11x 11x 11x 11x 11x 11x 1x 2x 2x 2x 1x 1x 7x 7x 5x 5x 5x 5x 5x 3x 1x 2x 1x 7x 11x | import { GameMap, PositionInterface } from "jga-games-maps";
import { TileInterface } from "jga-games-tiles";
import { EntityInterface } from "jga-patterns-ecs";
import { ComponentName, PositionComponent } from "../components";
import { Entity } from "../entities";
import { System } from "./system";
export interface MoveInterface {
canMove: boolean;
newPosition: PositionInterface | null;
}
export class MovementSystem extends System {
protected position: PositionInterface;
protected targets: Map<string, EntityInterface>;
public constructor(
entities: Map<string, Entity>,
position: PositionInterface,
targets: Map<string, EntityInterface>,
) {
super(entities, [ComponentName.MOVEABLE, ComponentName.POSITION]);
this.position = position;
this.targets = this.filterEntities(targets, [ComponentName.POSITION]);
}
public getPosition(): PositionInterface {
return this.position;
}
public run(map: GameMap): void {
return this.entities.forEach((entity): void => {
const move = this.canMove(map);
if (move.canMove) {
const positionComponent = entity.getComponent(ComponentName.POSITION) as PositionComponent;
positionComponent.setPosition(this.position);
}
});
}
public canMove(map: GameMap): MoveInterface {
const move: MoveInterface = {
canMove: false,
newPosition: this.position,
};
if (null != this.position && null != map) {
const tile: TileInterface = map.getTile(this.position);
const targets: EntityInterface[] = Array.from(this.targets.values()).filter((entity) => {
const entityPosition = entity.getComponent(ComponentName.POSITION) as PositionComponent;
return (
this.position.x === entityPosition.getPosition().x &&
this.position.y === entityPosition.getPosition().y
);
});
if (0 === targets.length && null !== tile) {
if (tile.isWalkable) {
move.canMove = true;
} else if (tile.isDiggable) {
map.dig(this.position);
}
}
}
return move;
}
}
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