application-amicale/screens/Tetris/GridManager.js

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// @flow
import Piece from "./Piece";
import ScoreManager from "./ScoreManager";
export default class GridManager {
#currentGrid: Array<Array<Object>>;
#colors: Object;
constructor(width: number, height: number, colors: Object) {
this.#colors = colors;
this.#currentGrid = this.getEmptyGrid(height, width);
}
getCurrentGrid() {
return this.#currentGrid;
}
getEmptyLine(width: number) {
let line = [];
for (let col = 0; col < width; col++) {
line.push({
color: this.#colors.tetrisBackground,
isEmpty: true,
});
}
return line;
}
getEmptyGrid(height: number, width: number) {
let grid = [];
for (let row = 0; row < height; row++) {
grid.push(this.getEmptyLine(width));
}
return grid;
}
getGridCopy() {
return JSON.parse(JSON.stringify(this.#currentGrid));
}
getFinalGrid(currentObject: Piece) {
let finalGrid = this.getGridCopy();
currentObject.toGrid(finalGrid, false);
return finalGrid;
}
clearLines(lines: Array<number>, scoreManager: ScoreManager) {
lines.sort();
for (let i = 0; i < lines.length; i++) {
this.#currentGrid.splice(lines[i], 1);
this.#currentGrid.unshift(this.getEmptyLine(this.#currentGrid[0].length));
}
scoreManager.addLinesRemovedPoints(lines.length);
}
getLinesToClear(coord: Object) {
let rows = [];
for (let i = 0; i < coord.length; i++) {
let isLineFull = true;
for (let col = 0; col < this.#currentGrid[coord[i].y].length; col++) {
if (this.#currentGrid[coord[i].y][col].isEmpty) {
isLineFull = false;
break;
}
}
if (isLineFull && rows.indexOf(coord[i].y) === -1)
rows.push(coord[i].y);
}
return rows;
}
freezeTetromino(currentObject: Piece, scoreManager: ScoreManager) {
currentObject.toGrid(this.#currentGrid, false);
this.clearLines(this.getLinesToClear(currentObject.getCoordinates()), scoreManager);
}
}