application-amicale/screens/Tetris/Tetromino.js

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export default class Tetromino {
static types = {
'I': 0,
'O': 1,
'T': 2,
'S': 3,
'Z': 4,
'J': 5,
'L': 6,
};
static shapes = {
0: [
[1, 1, 1, 1]
],
1: [
[1, 1],
[1, 1]
],
2: [
[0, 1, 0],
[1, 1, 1],
],
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20: [
[1, 0],
[1, 1],
[1, 0],
],
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3: [
[0, 1, 1],
[1, 1, 0],
],
4: [
[1, 1, 0],
[0, 1, 1],
],
5: [
[1, 0, 0],
[1, 1, 1],
],
6: [
[0, 0, 1],
[1, 1, 1],
],
};
static colors = {
0: '#00f8ff',
1: '#ffe200',
2: '#b817ff',
3: '#0cff34',
4: '#ff000b',
5: '#1000ff',
6: '#ff9400',
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};
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currentType: Object;
currentShape: Object;
currentRotation: number;
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position: Object;
constructor(type: Tetromino.types) {
this.currentType = type;
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this.currentShape = Tetromino.shapes[type];
this.currentRotation = 0;
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this.position = {x: 0, y: 0};
}
getColor() {
return Tetromino.colors[this.currentType];
}
getCellsCoordinates() {
let coordinates = [];
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for (let row = 0; row < this.currentShape.length; row++) {
for (let col = 0; col < this.currentShape[row].length; col++) {
if (this.currentShape[row][col] === 1)
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coordinates.push({x: this.position.x + col, y: this.position.y + row});
}
}
return coordinates;
}
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rotate(isForward) {
this.currentRotation++;
if (this.currentRotation > 3)
this.currentRotation = 0;
if (this.currentRotation === 0) {
this.currentShape = Tetromino.shapes[this.currentType];
} else {
let result = [];
for(let i = 0; i < this.currentShape[0].length; i++) {
let row = this.currentShape.map(e => e[i]);
if (isForward)
result.push(row.reverse());
else
result.push(row);
}
this.currentShape = result;
}
}
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move(x: number, y: number) {
this.position.x += x;
this.position.y += y;
}
}