AoC2022_Day14/main.cpp

#define OLC_PGE_APPLICATION
#include "pixelGameEngine.h"
#include "olcutils.h"

using namespace olc;


vi2d upperLeftCoords={500,0};
vi2d lowerRightCoords={500,0};
std::vector<std::vector<char>>board;

struct Connection{
    std::vector<vi2d>coords;
};

enum ReadState{
    READX,
    READY,
    WAIT
};

vi2d getArrayCoords(vi2d pos){
    return pos-upperLeftCoords;
}

void modifyBoard(vi2d pos,char val){
    vi2d actualCoords=getArrayCoords(pos);
    board[actualCoords.y][actualCoords.x]=val;
}

int main()
{
    std::vector<Connection>connections;
	std::ifstream file("input");
    ReadState state=READX;
    while (file.good()){
        std::string line;
        std::getline(file,line);
        std::string num1;
        std::string num2;
        if (line.length()>0){
            state=READX;
            Connection c;
            for (int i=0;i<line.length();i++){
                switch (state){
                    case READX:{
                        if (line[i]==','){
                            state=READY;
                            break;
                        }
                        num1+=line[i];
                    }break;
                    case READY:{
                        if (line[i]==' '){
                            state=WAIT;
                            int numb1=std::atoi(num1.c_str());
                            int numb2=std::atoi(num2.c_str());
                            c.coords.push_back({numb1,numb2});
                            upperLeftCoords.x=std::min(numb1,upperLeftCoords.x);
                            upperLeftCoords.y=std::min(numb2,upperLeftCoords.y);
                            lowerRightCoords.x=std::max(numb1,lowerRightCoords.x);
                            lowerRightCoords.y=std::max(numb2,lowerRightCoords.y);
                            std::cout<<"read "<<num1<<"//"<<num2<<std::endl;
                            num1="";
                            num2="";
                            break;
                        }
                        num2+=line[i];
                    }break;
                    case WAIT:{
                        if (line[i]==' '){
                            state=READX;
                            break;
                        }
                    }break;
                }
            }
            connections.push_back(c);
        }
        std::cout<<line<<std::endl;
    }
    std::cout<<"Upper-Left Bounds: "<<upperLeftCoords<<std::endl;
    std::cout<<"Lower-Right Bounds: "<<lowerRightCoords<<std::endl;

    

    for (int y=upperLeftCoords.y;y<=lowerRightCoords.y;y++){
        std::vector<char>b;
        for (int x=upperLeftCoords.x;x<=lowerRightCoords.x;x++){
            b.push_back(' ');
        }
        board.push_back(b);
    }

    for(int i=0;i<connections.size();i++){
        Connection&c=connections[i];
        vi2d&startPos=c.coords[0];
        for (int j=1;j<c.coords.size();j++){
            vi2d&endPos=c.coords[j];
            while (startPos!=endPos){
                modifyBoard(startPos,'#');
                if (startPos.x!=endPos.x){
                    startPos.x+=(endPos.x-startPos.x)/std::abs(startPos.x-endPos.x);
                }
                if (startPos.y!=endPos.y){
                    startPos.y+=(endPos.y-startPos.y)/std::abs(startPos.y-endPos.y);
                }
            }
        }
    }

    for (int y=0;y<board.size();y++){
        for (int x=0;x<board[y].size();x++){
            if (board[y][x]!=' '){
                std::cout<<board[y][x];
            } else
            if (x+upperLeftCoords.x==500){
                std::cout<<'|';
            } else {
                std::cout<<board[y][x];
            }
        }
        std::cout<<std::endl;
    }

	return 0;
}