sigonasr2
/
AoC2022_Day22
generated from sigonasr2/CPlusPlusProjectTemplate
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Part 1 is done!

Browse Source 
Co-authored-by: sigonasr2 <sigonasr2@gmail.com>
master
sigonasr2 2 years ago
parent ae6bf67771
commit 85eca18a60
4 changed files with 452 additions and 73 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. BIN
      C++ProjectTemplate
  2. 202
      input
  3. 309
      main.cpp
  4. 14
      testinput

BIN
C++ProjectTemplate
View File

Binary file not shown.

202
input
View File

File diff suppressed because one or more lines are too long

309
main.cpp
Unescape View File

@ -4,86 +4,249 @@
using namespace olc;
class Example : public olc::PixelGameEngine
{
public:
Example()
{
sAppName = "Example";
}
public:
bool RayVsRect(const vf2d ray_origin, const vf2d ray_dir, const olc::utils::geom2d::rect<float> target, vf2d&contact_point, vf2d&contact_normal, float&t_hit_near){
contact_normal = { 0, 0 };
contact_point = { 0, 0 };
vf2d t_near = {(target.pos.x - ray_origin.x) / ray_dir.x, (target.pos.y - ray_origin.y) / ray_dir.y};
vf2d t_far = {(target.pos.x + target.size.x - ray_origin.x) / ray_dir.x, (target.pos.y + target.size.y - ray_origin.y) / ray_dir.y};
if (t_near.x > t_far.x) {float b; b = t_near.x; t_near.x = t_far.x; t_far.x = b;};
if (t_near.y > t_far.y) {float b; b = t_near.y; t_near.y = t_far.y; t_far.y = b;};
if (t_near.x > t_far.y || t_near.y > t_far.x) return false;
t_hit_near = fmax(t_near.x, t_near.y);
float t_hit_far = fmin(t_far.x, t_far.y);
if (t_hit_far < 0) return false;
contact_point.x = ray_origin.x + t_hit_near * ray_dir.x;
contact_point.y = ray_origin.y + t_hit_near * ray_dir.y;
if (t_near.x > t_near.y)
if ( 1.0f / ray_dir.x < 0)
contact_normal = { 1, 0 };
else
contact_normal = { -1, 0};
else
if ( t_near.x < t_near.y)
if ( 1.0f / ray_dir.y < 0)
contact_normal = { 0, 1 };
else
contact_normal = { 0, -1 };
return true;
enum Direction{
RIGHT,
DOWN,
LEFT,
UP
};
struct Instruction{
int number=-1;
Direction turn;
};
int main()
{
std::vector<std::vector<char>>map;
std::vector<Instruction>instructions;
std::vector<vi2d>visitedLocs;
std::ifstream file("testinput");
while (file.good()){
std::string line;
std::getline(file,line);
if (line.length()>0){
if (line[0]=='.'||line[0]==' '||line[0]=='#'){
std::vector<char>mapRow;
for (int i=0;i<line.length();i++){
mapRow.push_back(line[i]);
}
map.push_back(mapRow);
} else {
//Parse the instruction set.
bool isNumber=true;
int marker=0;
while(marker<line.length()){
if (isNumber){
std::string acc="";
while (line[marker]>='0'&&line[marker]<='9'){
acc+=line[marker++];
}
instructions.push_back({std::atoi(acc.c_str())});
isNumber=false;
} else {
switch(line[marker++]){
case 'R':{
instructions.push_back({-1,Direction::RIGHT});
}break;
case 'L':{
instructions.push_back({-1,Direction::LEFT});
}break;
}
isNumber=true;
}
}
}
}
}
vf2d originPoint={16,16};
bool OnUserCreate() override
{
// Called once at the start, so create things here
return true;
}
bool OnUserUpdate(float fElapsedTime) override
{
vf2d velocity={(GetKey(D).bHeld-GetKey(A).bHeld)*20*fElapsedTime,(GetKey(S).bHeld-GetKey(W).bHeld)*20*fElapsedTime};
vf2d contact_point;
vf2d contact_normal;
float t_hit_near;
Clear(Pixel(64,64,255));
if (!olc::utils::geom2d::overlaps(olc::utils::geom2d::circle<float>{originPoint+velocity,5},olc::utils::geom2d::rect<float>{{32,32},{64,32}})) {
originPoint+=velocity;
DrawCircle(originPoint,5);
for (int y=0;y<map.size();y++){
for (int x=0;x<map[y].size();x++){
std::cout<<map[y][x];
}
std::cout<<std::endl;
}
std::cout<<"============="<<std::endl;
for (int i=0;i<instructions.size();i++){
if (instructions[i].number==-1){
if (instructions[i].turn==Direction::RIGHT){
std::cout<<'R';
} else {
std::cout<<'L';
}
} else {
DrawCircle(originPoint,5,RED);
std::cout<<instructions[i].number;
}
DrawLine(originPoint,GetMousePos());
DrawRect({32,32},{64,32},RayVsRect(originPoint, GetMousePos()-originPoint, olc::utils::geom2d::rect<float>{{32,32},{64,32}},contact_point,contact_normal,t_hit_near)&&t_hit_near<1?YELLOW:WHITE);
return true;
}
};
}
std::cout<<std::endl;
int main()
{
Example demo;
if (demo.Construct(128, 120, 8, 8))
demo.Start();
vi2d pos={0,0};
for (int i=0;i<map[0].size();i++){
if (map[0][i]!=' '){
pos={i,0};
}
}
int instructionMarker=0;
Direction facingDir=Direction::RIGHT;
while (instructionMarker<instructions.size()){
Instruction&instruction=instructions[instructionMarker];
if (instruction.number!=-1){
std::cout<<"Moving "<<instruction.number<<" steps"<<std::endl;
int steps=instruction.number;
while (steps>0){
switch (facingDir){
case Direction::RIGHT:{
char tile=' ';
vi2d targetPos={pos.x+1,pos.y};
if (pos.x+1>=map[pos.y].size()){
for (int i=0;i<map[pos.y].size();i++){
if (map[pos.y][i]=='.'){
targetPos.x=i;
break;
} else
if (map[pos.y][i]=='#'){
//It's a dead end so we can't move. Go next.
goto next;
}
}
}
tile=map[targetPos.y][targetPos.x];
switch (tile){
case '.':{
pos=targetPos;
visitedLocs.push_back(pos);
}break;
case '#':{
goto next;
}break;
case ' ':{
//Impossible when going right.
}break;
}
}break;
case Direction::LEFT:{
char tile=' ';
vi2d targetPos={pos.x-1,pos.y};
if (pos.x-1<0||map[pos.y][pos.x-1]==' '){
if (map[pos.y][map[pos.y].size()-1]=='.'){
targetPos.x=map[pos.y].size()-1;
break;
} else
if (map[pos.y][map[pos.y].size()-1]=='#'){
//It's a dead end so we can't move. Go next.
goto next;
}
}
tile=map[targetPos.y][targetPos.x];
switch (tile){
case '.':{
pos=targetPos;
visitedLocs.push_back(pos);
}break;
case '#':{
goto next;
}break;
case ' ':{
//Impossible when going right.
}break;
}
}break;
case Direction::UP:{
char tile=' ';
vi2d targetPos={pos.x,pos.y-1};
if (pos.y-1<0||map[pos.y-1][pos.x]==' '){
for (int y=map.size()-1;y>0;y--){
if (map[y].size()>pos.x){
if (map[y][pos.x]=='.'){
targetPos.y=y;
break;
}else
if (map[y][pos.x]=='#'){
goto next;
}
}
}
}
tile=map[targetPos.y][targetPos.x];
switch (tile){
case '.':{
pos=targetPos;
visitedLocs.push_back(pos);
}break;
case '#':{
goto next;
}break;
case ' ':{
//Impossible when going right.
}break;
}
}break;
case Direction::DOWN:{
char tile=' ';
vi2d targetPos={pos.x,pos.y+1};
if (pos.y+1>=map.size()||map[pos.y+1].size()<=pos.x||map[pos.y+1][pos.x]==' '){
for (int y=0;y<map.size();y++){
if (map[y].size()>pos.x){
if (map[y][pos.x]=='.'){
std::cout<<"Found a spot. ("<<y<<")"<<std::endl;
targetPos.y=y;
break;
}else
if (map[y][pos.x]=='#'){
std::cout<<"Found a dead end. ("<<y<<")"<<std::endl;
goto next;
}
}
}
}
tile=map[targetPos.y][targetPos.x];
switch (tile){
case '.':{
pos=targetPos;
visitedLocs.push_back(pos);
}break;
case '#':{
goto next;
}break;
case ' ':{
}break;
}
}break;
}
steps--;
}
} else {
if (instruction.turn==Direction::RIGHT){
facingDir=(Direction)((facingDir+1)%4);
} else {
int dir = facingDir-1;
if (dir<0){
dir=3;
}
facingDir=(Direction)dir;
}
std::cout<<"Turned "<<(instruction.turn==Direction::RIGHT?"RIGHT":"LEFT")<<" to face "<<facingDir<<std::endl;
}
next:
instructionMarker++;
}
std::cout<<"Final position: "<<pos<<" Dir:"<<facingDir<<std::endl;
std::cout<<"Sum: "<<1000*(pos.y+1)+4*(pos.x+1)+facingDir<<std::endl;
for (int y=0;y<map.size();y++){
for (int x=0;x<map[y].size();x++){
for (int i=0;i<visitedLocs.size();i++){
if (visitedLocs[i].x==x&&visitedLocs[i].y==y){
std::cout<<'+';
goto nextit;
}
}
std::cout<<map[y][x];
nextit:;
}
std::cout<<std::endl;
}
return 0;
}

14
testinput
Unescape View File

@ -0,0 +1,14 @@
...#
.#..
#...
....
...#.......#
........#...
..#....#....
..........#.
...#....
.....#..
.#......
......#.
10L5L5L10L4L5L5
Write Preview
Loading…
Cancel
Save