AoC2023/Day 11/main.cpp

#pragma region Hidden Setup Stuff
#define OLC_PGE_APPLICATION
#include "olcPixelGameEngine.h"

using namespace olc;

enum Run{
	FILE1,
	FILE2
};

// Override base class with your custom functionality
class AoC2023 : public olc::PixelGameEngine
{
std::vector<std::string>lines;
bool waitForRender=false;

void wait(int pauseMs=0){
	waitForRender=true;
	while(waitForRender);
	std::this_thread::sleep_for(std::chrono::milliseconds(pauseMs));
}

#pragma endregion

const int DAY = 11;
Run runInput=FILE2;

std::vector<std::string>space;

std::vector<vi2d>galaxies;

std::vector<vi2d>walkPath;

void doStuff(){
	while(true){ //lines is accessible as a global.
		for(std::string&line:lines){
			space.push_back(line);
			bool allDots=true;
			for(int i=0;i<line.length();i++){
				if(line[i]!='.'){
					allDots=false;
					break;
				}
			}
			if(allDots){
				space.push_back(std::string(line.size(),'M'));
			}
		}
		for(int col=0;col<space[0].length();col++){
			bool allDots=true;
			for(int row=0;row<space.size();row++){
				if(space[row][col]!='.'&&space[row][col]!='M'){
					allDots=false;
					break;
				}
			}
			if(allDots){
				for(int row=0;row<space.size();row++){
					std::string&r=space[row];
					r.insert(r.begin()+col,'M');
				}
				col++;
			}
		}

		for(int y=0;std::string&row:space){
			for(int x=0;char c:row){
				if(c=='#'){
					galaxies.push_back({x,y});
				}
				x++;
			}
			y++;
		}

		long long sum=0;

		for(int index=0;vi2d&galaxy:galaxies){
			walkPath.clear();
			for(int index2=index+1;index2<galaxies.size();index2++){
				vi2d&galaxy2=galaxies[index2];
				//int distance=abs(galaxy.x-galaxy2.x)+abs(galaxy.y-galaxy2.y);
				vi2d startingPos=galaxy;
				while(startingPos!=galaxy2){
					if(startingPos.x!=galaxy2.x){
						if(galaxy2.x>startingPos.x){
							startingPos.x++;
						}else{
							startingPos.x--;
						}
						if(space[startingPos.y][startingPos.x]=='.'||space[startingPos.y][startingPos.x]=='#'){
							sum++;
						}else{
							sum+=999999;
						}
					}else{
						if(galaxy2.y>startingPos.y){
							startingPos.y++;
						}else{
							startingPos.y--;
						}
						if(space[startingPos.y][startingPos.x]=='.'||space[startingPos.y][startingPos.x]=='#'){
							sum++;
						}else{
							sum+=999999;
						}
					}
					walkPath.push_back(startingPos);
				}
				wait(1);
			}
			index++;
		}
		std::cout<<sum<<std::endl;

		wait(0); //Wait for 0ms and render the screen (calls draw())
		break;
	}
}

void draw(){ //Only use Sprites! If using decals, you must reference global variables!
	if(GetScreenSize()!=vi2d{int(space[0].size()*8),int(space.size()*8)})SetScreenSize(space[0].size()*8,space.size()*8);
	Clear(BLACK);
	for(int count=0;std::string&row:space){
		DrawString({0,count*8},row,WHITE,1);
		count++;
	}
	for(vi2d&galaxy:galaxies){
		DrawString(galaxy*8,std::string(1,'#'),CYAN,1);
	}
	SetPixelMode(Pixel::ALPHA);
	srand(48910);
	for(vi2d&path:walkPath){
		switch(rand()%6){
			case 0:{
				FillRect(path*8,{8,8},{uint8_t(rand()%255),uint8_t(rand()%255),0,64});
			}break;
			case 1:{
				FillRect(path*8,{8,8},{uint8_t(rand()%255),0,uint8_t(rand()%255),64});
			}break;
			case 2:{
				FillRect(path*8,{8,8},{uint8_t(rand()%255),0,uint8_t(rand()%255),64});
			}break;
			case 3:{
				FillRect(path*8,{8,8},{0,0,uint8_t(rand()%255),64});
			}break;
			case 4:{
				FillRect(path*8,{8,8},{0,uint8_t(rand()%255),0,64});
			}break;
			case 5:{
				FillRect(path*8,{8,8},{uint8_t(rand()%255),0,0,64});
			}break;
		}
	}
}

#pragma region Hidden Engine Stuff
public:
	AoC2023()
	{
		// Name your application
		std::string fileName="day"+std::to_string(DAY)+"_1.txt";
		if(runInput==FILE2){fileName="day"+std::to_string(DAY)+"_2.txt";}
		std::ifstream file(fileName);
		while(file.good()){
			std::string line;
			std::getline(file,line);
			lines.push_back(line);
		}

		sAppName = "Advent of Code 2023 - Day "+std::to_string(DAY);
	}

public:
	bool OnUserCreate() override
	{

		return true;
	}

	bool OnUserUpdate(float fElapsedTime) override
	{
		static std::thread aocSolver(&AoC2023::doStuff,this);

		if(waitForRender){
			draw();
			waitForRender=false;
		}
		return true;
	}
};

int main()
{
	AoC2023 game;
	if (game.Construct(640, 480, 2,2))
		game.Start();
	return 0;
}
#pragma endregion