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111 lines
2.1 KiB
111 lines
2.1 KiB
#pragma once
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#include <vector>
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#include <queue>
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#include <string>
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#include <array>
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#include <fmt/core.h>
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#include "point.hpp"
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using fmt::println;
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namespace matrix {
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using std::vector, std::queue, std::array;
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typedef vector<int> Row;
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typedef vector<Row> Matrix;
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struct each_cell {
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size_t x = ~0;
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size_t y = ~0;
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size_t width = 0;
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size_t height = 0;
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each_cell(Matrix &mat);
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bool next();
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};
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struct each_row {
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Matrix &$mat;
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size_t x = ~0;
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size_t y = ~0;
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size_t width = 0;
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size_t height = 0;
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bool row = false;
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each_row(Matrix &mat);
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bool next();
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};
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struct in_box {
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size_t x = 0; // these are set in constructor
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size_t y = 0; // again, no fancy ~ trick needed
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size_t left = 0;
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size_t top = 0;
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size_t right = 0;
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size_t bottom = 0;
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in_box(Matrix &mat, size_t x, size_t y, size_t size);
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bool next();
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void dump();
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};
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struct compass {
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size_t x = 0; // these are set in constructor
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size_t y = 0; // again, no fancy ~ trick needed
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array<int, 4> x_dirs{0, 1, 0, -1};
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array<int, 4> y_dirs{-1, 0, 1, 0};
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size_t max_dirs=0;
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size_t dir = ~0;
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compass(Matrix &mat, size_t x, size_t y);
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bool next();
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};
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/*
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* Just a quick thing to reset a matrix to a value.
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*/
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inline void assign(Matrix &out, int new_value) {
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for(auto &row : out) {
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row.assign(row.size(), new_value);
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}
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}
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inline bool inbounds(Matrix &mat, size_t x, size_t y) {
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// since Point.x and Point.y are size_t any negatives are massive
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bool res = (y < mat.size()) && (x < mat[0].size());
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return res;
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}
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void dump(const std::string &msg, Matrix &map, int show_x=-1, int show_y=-1);
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struct flood {
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Matrix &mat;
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Point start;
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int old_val;
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int new_val;
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queue<Point> q;
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Point current_loc;
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int x;
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int y;
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matrix::compass dirs;
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flood(Matrix &mat, Point start, int old_val, int new_val);
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bool next();
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bool next_working();
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};
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struct line {
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int x;
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int y;
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int x1;
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int y1;
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int sx;
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int sy;
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int dx;
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int dy;
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int error;
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line(Point start, Point end);
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bool next();
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};
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}
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