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#include <algorithm>

#include "Pathfinder.h"
#include "Museum.h"

using namespace std;

Pathfinder::Pathfinder(Museum & m) : museum(m) {
}

size_t Pathfinder::pos_to_idx(const XY & point) {
	return point.y * this->museum.canvas.data.columns + point.x;
}

void Pathfinder::set_visited(const XY & point) {
	this->visisted[this->pos_to_idx(point)] = true;
}

bool Pathfinder::is_visited(const XY & point) {
	size_t idx = this->pos_to_idx(point);
	if (idx >= this->visisted.size()) return false;
	return this->visisted[idx];
}

bool Pathfinder::is_solution(const XY & point) {
	size_t idx = this->pos_to_idx(point);
	if (idx >= this->solution.size()) return false;
	return this->solution[idx];
}

void Pathfinder::clear() {
	this->solution.clear();
	this->solved = false;

	CanvasData & canvas = this->museum.canvas.data;
	this->visisted.resize(canvas.columns * canvas.rows);
	fill(this->visisted.begin(), this->visisted.end(), false);
}

void Pathfinder::set_solved(const Path & solution) {
	this->path = solution;
	this->solved = true;

	CanvasData & canvas = this->museum.canvas.data;
	this->solution.resize(canvas.columns * canvas.rows);
	fill(this->solution.begin(), this->solution.end(), false);
	for (const XY & point : solution) {
		this->solution[this->pos_to_idx(point)] = true;
	}

	this->museum.people.update(false);
}