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Source.cpp
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Source.cpp
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#include <SFML/Graphics.hpp>
#include<SFML/Window.hpp>
#include<SFML/System.hpp>
#include<vector>
#include<iostream>
#include<random>
#include<sstream>
#include<queue>
class GRID {
static constexpr int matrixSize=25;
static float gridsizeF;
static unsigned gridsizeU;
float viewSPeed = 500.f;
float x_off = (1920 - matrixSize * gridsizeF) / 2;
float y_off = (1080 - matrixSize * gridsizeF) / 4;
sf::View view;
sf::Event event;
sf::RenderWindow window;
sf::RectangleShape obst_shape, path_shape;
sf::Text obstacle, path_tracer,analyze;
sf::Font font;
std::vector<std::vector<sf::RectangleShape>>matrix;
std::vector<int>coordinates;
public:
//initialise a new window and our grid elements(sqaures) and also our 2d grid
GRID(): window(sf::VideoMode({1920, 1080}), "GRID"),
path_shape(sf::Vector2f(gridsizeF, gridsizeF)),
obst_shape(sf::Vector2f(gridsizeF, gridsizeF)){
window.setFramerateLimit(1000);
view.setSize({ 1920.f, 1080.f });
view.setCenter(sf::Vector2(window.getSize().x / 2.f, window.getSize().y / 2.f));
}
void frame() {
while (window.isOpen()) {
while (window.pollEvent(event)) {
if (event.type == sf::Event::Closed)
window.close();
}
//REnder/create a new frame/window
window.clear(sf::Color::Color(41,162,198)); //backgroun
window.setView(view);
//print the matrix
render_matrix();
//resets view at the end of the drawing
info_block();
heading1();
// pathfinder();
window.setView(window.getDefaultView());
//render/display the newly created window
window.display();
}
}
void matrix_construction() {
matrix.resize(matrixSize, std::vector<sf::RectangleShape>());
for (int rpos = 0; rpos < matrixSize; rpos++) {
matrix[rpos].resize(matrixSize, sf::RectangleShape());
for (int cpos = 0; cpos < matrixSize; cpos++) {
matrix[rpos][cpos].setSize({ gridsizeF,gridsizeF });
matrix[rpos][cpos].setFillColor(sf::Color::White);
matrix[rpos][cpos].setPosition({ x_off + rpos * gridsizeF, y_off + cpos * gridsizeF });
}
}
srand((unsigned)time(NULL));
int obstacleAmount = rand() % (4 * matrixSize);
for (int i = 1; i < obstacleAmount; i++) {
int r_xpos = rand() % matrixSize;
int r_ypos = rand() % matrixSize;
if (r_xpos ==0 && r_ypos == matrixSize-1)
continue;
matrix[r_xpos][r_ypos].setFillColor(sf::Color::Color(28, 29, 32));
}
}
void render_matrix() {
// matrix_construction();
for (int rpos = 0; rpos < matrixSize; rpos++) {
for (int cpos = 0; cpos < matrixSize; cpos++) {
window.draw(matrix[rpos][cpos]);
}
}
}
void heading1() {
font.loadFromFile("fonts/font2.ttf");
x_off = (1920 - matrixSize * gridsizeF) / 2;
y_off = (1080 - matrixSize * (gridsizeF)*2);
analyze.setCharacterSize(18);
analyze.setFillColor(sf::Color::Color(237, 244, 245));
analyze.setFont(font);
// analyze.setString("Analysing...");
// analyze.setPosition({ x_off+150, y_off+25});
window.draw(analyze);
}
void info_block() {
font.loadFromFile("fonts/font2.ttf");
x_off = (1920 - matrixSize * gridsizeF) / 2;
y_off = (1080 - matrixSize * (gridsizeF - 4));
obstacle.setCharacterSize(18);
obstacle.setFillColor(sf::Color::Color(237,244,245));
obstacle.setFont(font);
obstacle.setString("Obstacles");
path_tracer.setCharacterSize(18);
path_tracer.setFillColor(sf::Color::Color(237, 244, 245));
path_tracer.setFont(font);
path_tracer.setString("Path tracer");
obst_shape.setPosition({ x_off, y_off});
obst_shape.setFillColor(sf::Color::Color(28, 29, 32));
path_shape.setPosition({ x_off, y_off+50});
path_shape.setFillColor(sf::Color::Color(239, 113, 38));
obstacle.setPosition({ x_off+50, y_off });
path_tracer.setPosition({x_off+50, y_off+50});
window.draw(obst_shape);
window.draw(path_shape);
window.draw(obstacle);
window.draw(path_tracer);
}
void pathfinder() {
x_off = (1920 - matrixSize * gridsizeF) / 2;
y_off = (1080 - matrixSize * (gridsizeF) * 2);
//to update the indexes of the current block
coordinates.resize(2, 0);
//queue to keep track of the path
std::queue<std::vector<int>>currblock;
//vector to store the block which can be visited or not
bool can_visit[matrixSize][matrixSize];
bool has_visited[matrixSize][matrixSize];
std::vector<std::vector<std::vector<int>>> pred(matrixSize, std::vector<std::vector<int>>(matrixSize));
//traversing through whole grid to check which blocks can be visited
for (int i = 0; i < matrixSize; i++) {
for (int j = 0; j < matrixSize; j++) {
if (matrix[i][j].getFillColor() == sf::Color::Color(28, 29, 32))
can_visit[i][j] = false;
else
can_visit[i][j] = true;
}
}
for (int i = 0; i < matrixSize; i++) {
for (int j = 0; j < matrixSize; j++) {
has_visited[i][j] = false;
}
}
//BFS starts
//marking the starting point of the grid
coordinates[1] = matrixSize - 1;
can_visit[coordinates[0]][coordinates[1]] = true;
has_visited[coordinates[0]][coordinates[1]] = true;
currblock.push(coordinates);
pred[0][matrixSize-1] = { -1,-1 };
//start point of the grid
matrix[0][matrixSize - 1].setFillColor(sf::Color::Blue);
//end point of the grid
matrix[matrixSize - 1][0].setFillColor(sf::Color::Color(239,113,38)); //green
while (!currblock.empty()) {
auto curr = currblock.front();
currblock.pop();
int x_pos = curr[0];
int y_pos = curr[1];
analyze.setPosition({ x_off + 150, y_off + 25 });
analyze.setString("Analysing...");
if (x_pos == matrixSize-1 && y_pos == 0) {
while (true) {
matrix[x_pos][y_pos].setFillColor(sf::Color::Color(239, 113, 38));
x_off = (1920 - matrixSize * gridsizeF) / 2;
y_off = (1080 - matrixSize * (gridsizeF) * 2);
analyze.setPosition({ x_off+60 , y_off + 25 });
analyze.setString("Analyzation complete");
final_render();
auto p = pred[x_pos][y_pos];
if (p == std::vector({ -1, -1 }))
break;
x_pos = p[0]; y_pos = p[1];
}
break;
}
//moving up
if ((y_pos - 1 >= 0) && can_visit[x_pos][y_pos - 1] == true && has_visited[x_pos][y_pos - 1] == false) {
coordinates[0] = x_pos;
coordinates[1] = y_pos - 1;
has_visited[coordinates[0]][coordinates[1]] = true;
currblock.push(coordinates);
matrix[x_pos][y_pos - 1].setFillColor(sf::Color::Color(192,192,192));
pred[coordinates[0]][coordinates[1]] = { x_pos, y_pos };
final_render();
}
//moving down
if ((y_pos + 1 < matrixSize) && can_visit[x_pos][y_pos + 1] == true && has_visited[x_pos][y_pos + 1] == false) {
coordinates[0] = x_pos;
coordinates[1] = y_pos + 1;
has_visited[coordinates[0]][coordinates[1]] = true;
currblock.push(coordinates);
matrix[x_pos][y_pos + 1].setFillColor(sf::Color::Color(192, 192, 192));
pred[coordinates[0]][coordinates[1]] = { x_pos, y_pos };
final_render();
}
//moving right
if ((x_pos + 1 < matrixSize) && can_visit[x_pos + 1][y_pos] == true && has_visited[x_pos + 1][y_pos] == false) {
coordinates[0] = x_pos + 1;
coordinates[1] = y_pos;
has_visited[coordinates[0]][coordinates[1]] = true;
currblock.push(coordinates);
matrix[x_pos + 1][y_pos].setFillColor(sf::Color::Color(192, 192, 192));
pred[coordinates[0]][coordinates[1]] = { x_pos, y_pos };
final_render();
}
//moving left
if ((x_pos - 1 >= 0) && can_visit[x_pos - 1][y_pos] == true && has_visited[x_pos - 1][y_pos] == false) {
coordinates[0] = x_pos - 1;
coordinates[1] = y_pos;
has_visited[coordinates[0]][coordinates[1]] = true;
currblock.push(coordinates);
matrix[x_pos - 1][y_pos].setFillColor(sf::Color::Color(192, 192, 192));
pred[coordinates[0]][coordinates[1]] = { x_pos, y_pos };
final_render();
}
}
}
void final_render() {
window.clear(sf::Color::Color(41,162,198));
render_matrix();
info_block();
heading1();
window.display();
}
}gridobj;
float GRID::gridsizeF = 20.f;
unsigned GRID::gridsizeU = static_cast<unsigned>(gridsizeF);
int main()
{
gridobj.matrix_construction();
gridobj.pathfinder();
gridobj.frame();
return 0;
}