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Grid.cpp
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Grid.cpp
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// This file is part of LightBot.
//
// LightBot is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// LightBot is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with LightBot. If not, see <http://www.gnu.org/licenses/>.
// Authors : Lilian Gallon, Tristan Renaudon
#include "Grid.h"
#include "Utils.h"
#include <iostream>
#include <math.h>
#include <fstream>
#include <cstdlib>
namespace{
const int POS_X_INDEX = 0;
const int POS_Y_INDEX = 1;
const int POS_ORIENTATION_INDEX = 1;
const int HEIGHT_INDEX = 2;
const int LIGHT_INDEX = 3;
const sf::Vector2f DEFAULT_GAP = {100,150};
const sf::Vector2f DEFAULT_ROBOT_SIZE = {100,100};
const int DEFAULT_RADIUS = 65;
const std::string FONT_LEVELNAME = "Ubuntu-L.ttf";
const sf::Color TEXT_LEVELNAME_COLOR = sf::Color::Black;
const int TEXT_LEVELNAME_SIZE = 25;
const std::string FONT_LEVELHEIGHT = "coolvetica.ttf";
const sf::Color TEXT_LEVELHEIGHT_COLOR = sf::Color(128,128,128,128);
const int TEXT_LEVELHEIGHT_SIZE = 20;
const sf::Color CELL_LIGHT_COLOR = sf::Color(220,241,251,128);
const sf::Color CELL_NLIGHT_COLOR = sf::Color::Transparent;
const sf::Color CELL_FILL_COLOR = sf::Color::Transparent;
const sf::Color CELL_OUTLINE_COLOR = sf::Color::Black;
const int CELL_OUTLINE_THICKNESS = 2;
const sf::Vector2f ROBOT_RECT_SIZE_JUMPING = {125,125};
const sf::Vector2f ROBOT_RECT_SIZE_NJUMPING = {100,100};
}
/************************************************
* CONSTRUCTORS / DESTRUCTORS *
*************************************************/
Grid::Grid(std::vector<Cell*> cells, Robot *robot)
:m_cells{cells}, m_robot{robot}, m_radius{DEFAULT_RADIUS}, m_gap{DEFAULT_GAP}, m_error_drawing{false},m_over_cell{nullptr}, m_robot_orientation{Utils::Orientation::NONE}
{
initLabels();
initRobotRect();
}
Grid::Grid()
:m_radius{DEFAULT_RADIUS}, m_gap{DEFAULT_GAP}, m_error_drawing{false},m_over_cell{nullptr},m_robot_orientation{Utils::Orientation::NONE}
{
initLabels();
initRobotRect();
}
void Grid::initRobotRect(){
m_robot_rect.setFillColor(sf::Color(255,255,255,255));
m_robot_rect.setSize(DEFAULT_ROBOT_SIZE);
}
void Grid::initLabels(){
// Font load (cell height)
if (!m_font_levelheight.loadFromFile(Utils::FONT_PATH+FONT_LEVELHEIGHT)) {
std::cout << Utils::getTime() + "[Grid-ERROR]: Could not load the font" << std::endl;
std::cout << Utils::getTime() + "[Grid-FIX]: Check \""+ Utils::FONT_PATH+FONT_LEVELHEIGHT + "\"" << std::endl;
std::cout << Utils::getTime() + "[Grid-FIX]: The font will be ignored." << std::endl;
}else{
m_text_levelheight.setFont(m_font_levelheight);
std::cout << Utils::getTime() + "[Grid-INFO]: Font loaded" << std::endl;
}
m_text_levelheight.setColor(TEXT_LEVELHEIGHT_COLOR);
m_text_levelheight.setCharacterSize(TEXT_LEVELHEIGHT_SIZE);
// Font load (level name)
if (!m_font_levelname.loadFromFile(Utils::FONT_PATH+FONT_LEVELNAME)) {
std::cout << Utils::getTime() + "[Grid-ERROR]: Could not load the font" << std::endl;
std::cout << Utils::getTime() + "[Grid-FIX]: Check \""+ Utils::FONT_PATH+FONT_LEVELNAME + "\"" << std::endl;
std::cout << Utils::getTime() + "[Grid-FIX]: The font will be ignored." << std::endl;
}else{
m_text_levelname.setFont(m_font_levelname);
std::cout << Utils::getTime() + "[Grid-INFO]: Font loaded" << std::endl;
}
m_text_levelname.setColor(TEXT_LEVELNAME_COLOR);
m_text_levelname.setCharacterSize(TEXT_LEVELNAME_SIZE);
}
void Grid::initRobot(const std::string &line)
{
// Divide the line with ';'
std::vector<std::string> sub_string = Utils::split(line,";");
bool error = false;
if(sub_string.size()!=3){
error = true;
std::cout << Utils::getTime() + "[Level Loader-ERROR]: Robot line invalid: if the robot line seems to be valid, check if the level name has spaces (it should not)" << std::endl;
}
if(!error){
// The robot receive its position
m_robot->setPos({atoi(sub_string[POS_X_INDEX].c_str()),atoi(sub_string[POS_Y_INDEX].c_str())});
// Get the orientation from the file and give it to the robot
int orientation = atof(sub_string[POS_ORIENTATION_INDEX].c_str());
switch (orientation) {
case 1:
m_robot->setOrientation(Utils::Orientation::DOWN);
break;
case 2:
m_robot->setOrientation(Utils::Orientation::DOWN_LEFT);
break;
case 3:
m_robot->setOrientation(Utils::Orientation::DOWN_RIGHT);
break;
case 4:
m_robot->setOrientation(Utils::Orientation::UP);
break;
case 5:
m_robot->setOrientation(Utils::Orientation::UP_LEFT);
break;
case 6:
m_robot->setOrientation(Utils::Orientation::UP_RIGHT);
break;
default:
std::cout << Utils::getTime() + "[Grid-ERROR]: Orientation " + std::to_string(orientation) + " is invalid." << std::endl;
m_robot->setOrientation(Utils::Orientation::DOWN);
std::cout << Utils::getTime() + "[Grid-FIX]: The robot orientation has been set to DOWN" << std::endl;
break;
}
}
}
// Change the robot texture according to its orientation
void Grid::changeRobotTexture(const Utils::Orientation &orientation)
{
std::string image;
switch (orientation) {
case Utils::Orientation::DOWN:
image="down.png";
break;
case Utils::Orientation::DOWN_LEFT:
image="down-left.png";
break;
case Utils::Orientation::DOWN_RIGHT:
image="down-right.png";
break;
case Utils::Orientation::UP:
image="up.png";
break;
case Utils::Orientation::UP_LEFT:
image="up-left.png";
break;
case Utils::Orientation::UP_RIGHT:
image="up-right.png";
break;
default:
std::cout << Utils::getTime() + "[Grid-CRITICAL]: Invalid orientation ???" << std::endl;
break;
}
if(!m_robot_texture.loadFromFile(Utils::IMG_PATH+image)){
std::cout << Utils::getTime() + "[Grid-ERROR]: Orientation could not have been changed (texture)" << std::endl;
std::cout << Utils::getTime() + "[Grid-FIX]: Check \""
+ Utils::IMG_PATH + "\"" << std::endl;
std::cout << Utils::getTime() + "[Grid-FIX]: The robot orientation texture will stay the same." << std::endl;
}else{
m_robot_rect.setTexture(&m_robot_texture);
}
}
Grid::~Grid(){
for(Cell* c : m_cells){
delete c;
}
}
/************************************************
* SETTER *
*************************************************/
void Grid::setGrid(std::vector<Cell*> cells){
m_cells = cells;
}
void Grid::setRobot(Robot *robot)
{
m_robot = robot;
}
/************************************************
* GETTERS *
*************************************************/
// It returns true if the mouse is on a cell
bool Grid::isOverCell(const sf::Vector2i &mouse){
// Reset all the lights
for(Cell* c : m_cells){
c->setLight(false);
}
// We suppose that the mouse is not over a cell
bool isOver = false;
unsigned int i = 0;
// We check if the mouse is over one of the cells of m_cells
while(!isOver && i<m_cells.size()){
// Gets the cell at the actual index
Cell* c = m_cells.at(i);
// Get the pos in pixels of the cell
sf::Vector2f pos = Utils::positionToPixel(c->getPos(),m_gap,m_radius);
// Compare mouse pos and hexagone pos (pixels)
isOver = Utils::abs(mouse.x-pos.x)<=m_radius
&& Utils::abs(mouse.y-pos.y)<=m_radius;
// The algorithm acts as if the hexagone was a circle
i++;
}
i --;
// If the mouse is over a cell, we change the light of this cell
// And we get the cell which the mouse is over
if(isOver){
m_cells.at(i)->setLight(true);
m_over_cell = m_cells.at(i);
}else if(m_over_cell){
m_over_cell = nullptr;
}
return isOver;
}
Cell *Grid::getOverCell() const
{
return m_over_cell;
}
std::vector<Cell*> Grid::getGrid(){
return m_cells;
}
/**************************************************
* FILE STREAM
* ************************************************/
void Grid::loadLevel(const std::string &level_id){
// Variables to read
std::fstream f;
std::string line;
std::vector<std::string> sub_string;
// Variable for the level
std::string level_name;
// Variables for the cell
sf::Vector2f pos;
int light;
int height;
// Tries to open the file
f.open(Utils::LEVELS_PATH + level_id + ".txt", std::ios::in);
if( f.fail() )
{
std::cout << Utils::getTime() + "[Level Loader-ERROR]: Could not load the level id #" + level_id << std::endl;
}else{
// If the grid already was loaded before, we reset it
if(!m_cells.empty()){
for(Cell* c : m_cells){
delete c;
std::cout << Utils::getTime() + "[Level Loader-INFO]: Deleting a cell" << std::endl;
}
m_cells.clear();
std::cout << Utils::getTime() + "[Level Loader-INFO]: Deleting last level" << std::endl;
}
std::cout << Utils::getTime() + "[Level Loader-INFO]: Reading the level" << std::endl;
// The first line corresponds to the level name
f >> level_name;
m_text_levelname.setString(level_name);
// Robot values
std::string robot_line;
f >> robot_line;
initRobot(robot_line);
bool error_sub_string;
bool error_values;
while( !f.eof() )
{
error_sub_string = false;
// Gets the line
f >> line;
sub_string = Utils::split(line,";");
/* CHECKER */
if(sub_string.size()==0){
std::cout << Utils::getTime() + "[Level Loader-ERROR]: Error on the line, there is nothing" << std::endl;
error_sub_string = true;
}
if(sub_string.size()>4){
std::cout << Utils::getTime() + "[Level Loader-ERROR]: Error on the line, there is too much arguments" << std::endl;
error_sub_string = true;
}
if(sub_string.size()<4){
std::cout << Utils::getTime() + "[Level Loader-ERROR]: Error on the line, there not enough arguments" << std::endl;
error_sub_string = true;
}
if(!error_sub_string){
// Convert strings to good values
pos.x = atof(sub_string[POS_X_INDEX].c_str());
pos.y = atof(sub_string[POS_Y_INDEX].c_str());
height = atoi(sub_string[HEIGHT_INDEX].c_str());
light = (bool)atoi(sub_string[LIGHT_INDEX].c_str());
/** CHECKER **/
if(pos.x>7){
error_values = true;
std::cout << Utils::getTime() + "[Level Loader-ERROR]: pos X: " + std::to_string(pos.x) + " is invalid (>7)" << std::endl;
}
if(pos.y>4){
error_values = true;
std::cout << Utils::getTime() + "[Level Loader-ERROR]: pos Y: " + std::to_string(pos.y) + " is invalid (>4)" << std::endl;
}
if(height<0){
std::cout << Utils::getTime() + "[Level Loader-ERROR]: height: " + std::to_string(height) + " is invalid (<0)" << std::endl;
error_values = true;
}
}
// Definition of the new cell, if this is not the end of the file
// prevent an extra loop
if(!f.eof() && !error_sub_string && !error_values){
Cell* c = new Cell(pos,height,light);
m_cells.push_back(c);
}
}
std::cout << Utils::getTime() + "[Level Loader-INFO]: Level loaded" << std::endl;
}
f.close();
}
void Grid::saveLevel(const std::string &level_id, const std::string &level_name){
// File stream
std::fstream f;
std::fstream f_in;
// File adress (level)
std::string file = Utils::LEVELS_PATH + level_id + ".txt";
// Tries to open the file
f_in.open(Utils::LEVELS_PATH + level_id + ".txt", std::ios::in);
if( !f_in.fail() )
{
std::cout << Utils::getTime() + "[Level Saver-ERROR]: The level id#" + level_id + " already exists." << std::endl;
std::cout << Utils::getTime() + "[Level Saver-FIX]: The level id#" + level_id + " will not be saved." << std::endl;
}else{
f.open(file.c_str(), std::ios::out);
if( f.fail() )
{
std::cout << Utils::getTime() + "[Level Saver-ERROR]: Could not save the level id #" + level_id << std::endl;
}else{
// Level info
f << level_name;
f << "\n";
// Robot infos
f << m_robot->getPos().x << ";" << m_robot->getPos().y << ";" << (int)m_robot->getOrientation();
// Cells infos
for(Cell* c : m_cells){
f << "\n";
f << c->getPos().x << ";" << c->getPos().y << ";" << c->getHeight() << ";" << std::to_string(c->getLight());
}
std::cout << Utils::getTime() + "[Level Saver-INFO]: Level id #" + level_id + " has been saved." << std::endl;
}
}
f_in.close();
f.close();
}
/************************************************
* OTHERS *
*************************************************/
// Draws the grid
void Grid::drawGrid(sf::RenderWindow& window, const sf::Vector2f &grid_pos){
if(m_cells.empty() && !m_error_drawing){
// If cells container is empty, we do not write the level
std::cout << Utils::getTime() + "[Grid renderer-ERROR]: The grid seems to be empty" << std::endl;
std::cout << Utils::getTime() + "[Grid renderer-FIX]: The grid will not be displayed" << std::endl;
// m_error_drawing is used to display the error message only once instead of spamming it in the console
m_error_drawing = true;
}else if(!m_cells.empty()){
m_error_drawing = false;
// Sets the gap (-1;-1) indicates that we want the default one
if(grid_pos.x!=-1 && grid_pos.y!=-1){
m_gap = grid_pos;
}else{
m_gap = DEFAULT_GAP;
}
sf::CircleShape hexa;
hexa.setPointCount(6);
hexa.setRotation(90);
hexa.setRadius(m_radius);
hexa.setFillColor(CELL_FILL_COLOR);
hexa.setOutlineColor(CELL_OUTLINE_COLOR);
hexa.setOutlineThickness(CELL_OUTLINE_THICKNESS);
for(Cell* c : m_cells){
// If the cell has the light on, the color is different
if(c->getLight()){
hexa.setFillColor(CELL_LIGHT_COLOR);
}else{
hexa.setFillColor(CELL_NLIGHT_COLOR);
}
// Sets the origins in the center
hexa.setOrigin({c->getPos().x+m_radius,c->getPos().y+m_radius});
m_robot_rect.setOrigin({(float)(m_robot->getPos().x+(double)m_radius/1.3),(float)(m_robot->getPos().y+(double)m_radius/1.3)});
// We suppose that the robot is not here, we will draw it after if he is on the current cell
bool robot_is_there = false;
if(c->getPos().x==m_robot->getPos().x && c->getPos().y == m_robot->getPos().y){
robot_is_there = true;
}
// If the orientation of the robot has changed, we change the texture
if(m_robot->getOrientation()==Utils::Orientation::NONE || m_robot->getOrientation()!=m_robot_orientation){
m_robot_orientation = m_robot->getOrientation();
changeRobotTexture(m_robot_orientation);
}
// Convert the position of the cell from index to pixels
sf::Vector2f pos = Utils::positionToPixel(c->getPos(),m_gap,m_radius);
// Sets the cell at this position
hexa.setPosition(pos);
// TEXT with x;y
//std::string label = std::to_string((int)c->getPos().x) + ";" + std::to_string((int)c->getPos().y);
// TEXT with height
std::string label = std::to_string(c->getHeight());
// The text where is the height
m_text_levelheight.setString(label);
m_text_levelheight.setColor(sf::Color(TEXT_LEVELHEIGHT_COLOR));
// -4 here is to adjust the text position since m_text.getGlobalBounds().height is not working well
// m_radius/2 is to show the text at the middle of the cell (the origin is on the top left corner)
m_text_levelheight.setPosition({pos.x-4,pos.y+m_radius/2});
m_text_levelname.setColor(sf::Color(TEXT_LEVELNAME_COLOR));
// -4 here is to adjust the text position since m_text.getGlobalBounds().height is not working well
// m_radius/2 is to show the text at the middle of the cell (the origin is on the top left corner)
m_text_levelname.setPosition({0,0});
// Draw elements
window.draw(hexa);
window.draw(m_text_levelheight);
window.draw(m_text_levelname);
// If the robot is on the current cell, we draw it according to if its jumping or not
if(robot_is_there){
if(m_robot->isJumping()){
m_robot_rect.setSize(ROBOT_RECT_SIZE_JUMPING);
m_robot_rect.setOrigin({ROBOT_RECT_SIZE_JUMPING.x/2,ROBOT_RECT_SIZE_JUMPING.y/2});
}else{
m_robot_rect.setSize(ROBOT_RECT_SIZE_NJUMPING);
m_robot_rect.setOrigin({ROBOT_RECT_SIZE_NJUMPING.x/2,ROBOT_RECT_SIZE_NJUMPING.y/2});
}
m_robot_rect.setPosition(pos);
window.draw(m_robot_rect);
}
}
}
}