block.cpp

#include "block.h"

Block::Block() {
    cellSize = 30;
    rotationState = 0;
    colors = GetCellColors();
    rowOffset = 0;
    columnOffset = 0;
}

void Block::Draw(int offsetX, int offsetY) {
    std::vector<Position> tiles = GetCellPositions();
    for(Position item: tiles) {
        DrawRectangle(item.column * cellSize + offsetX, item.row * cellSize + offsetY, cellSize - 1, cellSize - 1, colors[id]);
    }
}

void Block::Move(int rows, int columns) {
    rowOffset += rows;
    columnOffset += columns;
}

std::vector<Position> Block::GetCellPositions() {
    std::vector<Position> tiles = cells[rotationState];
    std::vector<Position> movedTiles;
    for(Position item: tiles) {
        Position newPos = Position(item.row + rowOffset, item.column + columnOffset);
        movedTiles.push_back(newPos);
     }
     return movedTiles;
}

void Block::Rotate() {
    rotationState++;
    if(rotationState == (int)cells.size()) {
        rotationState = 0;
    }
}

void Block::UndoRotation() {
    rotationState--;
    if(rotationState == -1) {
        rotationState = cells.size() - 1;
    }
}