sigonasr2/AoC2022_Day12
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Co-authored-by: sigonasr2 <sigonasr2@gmail.com>
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sigonasr2 2022-12-12 06:51:19 -06:00
parent 17807eb031
commit 36236a54be
5 changed files with 181 additions and 74 deletions
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C++ProjectTemplate
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41
input Normal file
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abacccaaaacccccccccccaaaaaacccccaaaaaaccccaaacccccccccccccccccccccccccccccccccccccccccccaaaaa
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173
main.cpp
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using namespace olc; using namespace olc;
class Example : public olc::PixelGameEngine std::vector<int> validPathStepCounts;
{ vi2d playerPos={0,0};
public: vi2d endingPos={0,0};
Example() std::vector<std::vector<char>>grid;
{ int lowest=2468;
sAppName = "Example";
}
public: void step(char currentTile,vi2d pos,int xoffset,int yoffset,int stepCount,std::vector<std::vector<char>>visitedgrid,std::string currentPath){
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){ pos.x+=xoffset;
pos.y+=yoffset;
contact_normal = { 0, 0 }; std::cout<<currentPath<<std::endl;
contact_point = { 0, 0 }; if (currentTile=='S'){
currentTile='a';
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;
} }
vf2d originPoint={16,16}; if (stepCount+abs(pos.x-endingPos.x)+abs(pos.y-endingPos.y)>lowest){
bool OnUserCreate() override //std::cout<<"Took too long..."<<std::endl;
{ return;
// Called once at the start, so create things here }
return true; if (pos.y<0||pos.x<0||pos.x>=visitedgrid[0].size()||pos.y>=visitedgrid.size()){
} //std::cout<<"Dead end reached in "<<stepCount<<" steps ("<<currentPath<<")"<<std::endl;
return;
bool OnUserUpdate(float fElapsedTime) override }
{ if (visitedgrid[pos.y][pos.x]!='0'&&(visitedgrid[pos.y][pos.x]!='E'&&visitedgrid[pos.y][pos.x]-currentTile<=1||visitedgrid[pos.y][pos.x]=='E'&&currentTile>='y')){
vf2d velocity={(GetKey(D).bHeld-GetKey(A).bHeld)*20*fElapsedTime,(GetKey(S).bHeld-GetKey(W).bHeld)*20*fElapsedTime}; currentPath+=visitedgrid[pos.y][pos.x];
vf2d contact_point; if (visitedgrid[pos.y][pos.x]=='E'){
vf2d contact_normal; validPathStepCounts.push_back(++stepCount);
float t_hit_near; if (stepCount<lowest){
lowest=stepCount;
Clear(Pixel(64,64,255)); std::cout<<"Valid path found in "<<stepCount<<" steps! ("<<currentPath<<")"<<std::endl;
if (!olc::utils::geom2d::overlaps(olc::utils::geom2d::circle<float>{originPoint+velocity,5},olc::utils::geom2d::rect<float>{{32,32},{64,32}})) { }
originPoint+=velocity; return;
DrawCircle(originPoint,5);
} else {
DrawCircle(originPoint,5,RED);
} }
DrawLine(originPoint,GetMousePos()); ++stepCount;
char newTile=visitedgrid[pos.y][pos.x];
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); visitedgrid[pos.y][pos.x]='0';
return true; if (pos.y+1<visitedgrid.size()&&visitedgrid[pos.y+1][pos.x]!='0'&&yoffset!=-1){
} //visitedgrid[pos.y+1][pos.x]='0';
}; std::vector<std::vector<char>>newvisitedgrid=visitedgrid;
step(newTile,pos,0,1,stepCount,newvisitedgrid,currentPath);
}
if (pos.y-1>=0&&visitedgrid[pos.y-1][pos.x]!='0'&&yoffset!=1){
//visitedgrid[pos.y-1][pos.x]='0';
std::vector<std::vector<char>>newvisitedgrid=visitedgrid;
step(newTile,pos,0,-1,stepCount,newvisitedgrid,currentPath);
}
if (pos.x-1>=0&&visitedgrid[pos.y][pos.x-1]!='0'&&xoffset!=1){
//visitedgrid[pos.y][pos.x-1]='0';
std::vector<std::vector<char>>newvisitedgrid=visitedgrid;
step(newTile,pos,-1,0,stepCount,newvisitedgrid,currentPath);
}
if (pos.x+1<visitedgrid[0].size()&&visitedgrid[pos.y][pos.x+1]!='0'&&xoffset!=-1){
//visitedgrid[pos.y][pos.x+1]='0';
std::vector<std::vector<char>>newvisitedgrid=visitedgrid;
step(newTile,pos,1,0,stepCount,newvisitedgrid,currentPath);
}
}
}
int main() int main()
{ {
Example demo; std::ifstream file("testinput2");
if (demo.Construct(128, 120, 8, 8)) while (file.good()){
demo.Start(); std::string line;
std::getline(file,line);
std::vector<char>row;
if (line.length()>0){
for (int x=0;x<line.length();x++){
row.push_back(line[x]);
if (line[x]=='S'){
playerPos={x,(int)grid.size()};
}
if (line[x]=='E'){
endingPos={x,(int)grid.size()};
}
}
grid.push_back(row);
}
}
std::cout<<"================"<<std::endl;
for (int y=0;y<grid.size();y++){
for (int x=0;x<grid[y].size();x++){
std::cout<<grid[y][x];
}
std::cout<<std::endl;
}
std::cout<<"Player Pos: "<<playerPos<<std::endl;
char newTile=grid[playerPos.y][playerPos.x];
grid[playerPos.y][playerPos.x]='0';
std::vector<std::vector<char>>visitedgrid=grid;
std::vector<std::vector<char>>visitedgrid2=grid;
std::vector<std::vector<char>>visitedgrid3=grid;
std::vector<std::vector<char>>visitedgrid4=grid;
std::cout<<"Part 1"<<std::endl;
step(newTile,playerPos,1,0,0,visitedgrid,"S");
std::cout<<"Part 2"<<std::endl;
step(newTile,playerPos,-1,0,0,visitedgrid2,"S");
std::cout<<"Part 3"<<std::endl;
step(newTile,playerPos,0,1,0,visitedgrid3,"S");
std::cout<<"Part 4"<<std::endl;
step(newTile,playerPos,0,-1,0,visitedgrid4,"S");
std::sort(validPathStepCounts.begin(),validPathStepCounts.end());
for (int i=0;i<validPathStepCounts.size();i++){
std::cout<<validPathStepCounts[i]<<std::endl;
}
std::cout<<"Best: "<<validPathStepCounts[0]<<std::endl;
return 0; return 0;
} }

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Sabqponm
abcryxxl
accszExk
acctuvwj
abdefghi

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ccccccccccccccccccccccccccacccccccccccccccca
cccccccccccccccciiiicccccccddddddccccccccccc
cccaaaccccccccciiiiiiiicccdddddddddacaaccccc
ccaaaacccccccchhiiiiiiiiicddddddddddaaaccccc
ccaaaaccccccchhhipppppiiiijjjjjjjddddaaccccc
cccaaaccccccchhhpppppppiijjjjjjjjjddeeaccccc
ccccccccccccchhppppppppppjjqqqjjjjjeeeaacccc
cccccccccccchhhpppuuuupppqqqqqqqjjjeeeaacccc
cccccccccccchhhopuuuuuuppqqqqqqqjjjeeecccccc
ccaaccccccchhhhoouuuuuuuqvvvvvqqqjkeeecccccc
caaaccccccchhhooouuuxxxuvvvvvvqqqkkeeecccccc
aaaaaaaccchhhhooouuxxxxuvyyyvvqqqkkeeecccccc
aaaaaaaccjjhooooouuxxxxyyyyyvvqqqkkeeecccccc
aaaaaaccjjjooootuuuxxxxyyyyyvvqqkkkeeecccccc
aaaaaacjjjooootttuxxxxxyyyyvvrrrkkkeeecccccc
aaaaaacjjjoootttxxxEzzzzyyvvvrrrkkkfffcccccc
aaccaacjjjoootttxxxxxyyyyyyvvvrrkkkfffcccccc
cccccccjjjoootttxxxxyxyyyyyywvvrrkkkfffccccc
aacccccjjjnnnttttxxxxyyyyyyywwwrrkkkfffccccc
Sabaaacjjjnnnntttttxxyywwwwwwwwrrrlkfffccccc
aaaaacccjjjnnnnnttttwwywwwwwwwrrrrllfffccccc
aaaaccccjjjjinnnntttwwwwwsssrrrrrllllffccccc
aaaaacccciiiiinnnntswwwwssssrrrrrlllfffccccc
aaaaaaccccciiiinnnssswwsssssllllllllfffccccc
aaccaacccccciiiinnsssssssmmllllllllfffaacccc
aaccccccccccciiinnmsssssmmmmlllllgggffaacccc
cccccccccccccciiimmmsssmmmmmgggggggggaaacccc
aaaccccccccccciiimmmmmmmmmgggggggggaaacccccc
aaacccccccccccciiimmmmmmmhhggggcaaaaaaaccccc
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aaaccccccccccccchhhhhhhhhhhaaccccccccccccccc
aaacccaaacccccccchhhhhhhhaaaaccccccccccccccc
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