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Co-authored-by: sigonasr2 <sigonasr2@gmail.com>
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303
main.cpp
303
main.cpp
@ -4,86 +4,241 @@
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using namespace olc;
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class Example : public olc::PixelGameEngine
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{
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public:
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Example()
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{
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sAppName = "Example";
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}
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const vi2d INVALID={-9999999,-99999999};
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public:
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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){
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contact_normal = { 0, 0 };
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contact_point = { 0, 0 };
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vf2d t_near = {(target.pos.x - ray_origin.x) / ray_dir.x, (target.pos.y - ray_origin.y) / ray_dir.y};
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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};
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if (t_near.x > t_far.x) {float b; b = t_near.x; t_near.x = t_far.x; t_far.x = b;};
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if (t_near.y > t_far.y) {float b; b = t_near.y; t_near.y = t_far.y; t_far.y = b;};
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if (t_near.x > t_far.y || t_near.y > t_far.x) return false;
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t_hit_near = fmax(t_near.x, t_near.y);
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float t_hit_far = fmin(t_far.x, t_far.y);
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if (t_hit_far < 0) return false;
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contact_point.x = ray_origin.x + t_hit_near * ray_dir.x;
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contact_point.y = ray_origin.y + t_hit_near * ray_dir.y;
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if (t_near.x > t_near.y)
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if ( 1.0f / ray_dir.x < 0)
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contact_normal = { 1, 0 };
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else
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contact_normal = { -1, 0};
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else
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if ( t_near.x < t_near.y)
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if ( 1.0f / ray_dir.y < 0)
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contact_normal = { 0, 1 };
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else
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contact_normal = { 0, -1 };
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return true;
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}
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vf2d originPoint={16,16};
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bool OnUserCreate() override
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{
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// Called once at the start, so create things here
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return true;
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}
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bool OnUserUpdate(float fElapsedTime) override
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{
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vf2d velocity={(GetKey(D).bHeld-GetKey(A).bHeld)*20*fElapsedTime,(GetKey(S).bHeld-GetKey(W).bHeld)*20*fElapsedTime};
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vf2d contact_point;
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vf2d contact_normal;
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float t_hit_near;
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Clear(Pixel(64,64,255));
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if (!olc::utils::geom2d::overlaps(olc::utils::geom2d::circle<float>{originPoint+velocity,5},olc::utils::geom2d::rect<float>{{32,32},{64,32}})) {
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originPoint+=velocity;
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DrawCircle(originPoint,5);
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} else {
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DrawCircle(originPoint,5,RED);
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}
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DrawLine(originPoint,GetMousePos());
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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);
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return true;
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}
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enum Direction{
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NORTH,
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EAST,
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SOUTH,
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WEST
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};
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struct Elf{
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vi2d pos;
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int orderMarker=0;
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std::array<Direction,4>orderList={Direction::NORTH,Direction::SOUTH,Direction::WEST,Direction::EAST};
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vi2d dest=INVALID;
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};
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vi2d upperLeft={0,0};
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vi2d lowerRight={0,0};
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std::map<vi2d,Elf>elves;
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int iterations=1;
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int main()
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{
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Example demo;
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if (demo.Construct(128, 120, 8, 8))
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demo.Start();
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std::ifstream file("input");
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int y=0;
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while (file.good()){
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std::string line;
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std::getline(file,line);
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if (line.length()>0){
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std::cout<<line<<std::endl;
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for (int i=0;i<line.length();i++){
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if (line[i]=='#'){
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elves[{i,y}]={{i,y}};
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}
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}
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lowerRight={(int)line.length()-1,y++};
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}
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}
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std::cout<<elves.size()<<" elves loaded."<<std::endl;
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while (true){
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std::map<vi2d,vi2d>plannedMoves;
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for (std::map<vi2d,Elf>::iterator it=elves.begin();it!=elves.end();++it){
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Elf&e=elves[it->first];
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int neighbors=0;
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for (int x=-1;x<=1;x++){
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for (int y=-1;y<=1;y++){
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if (x!=0||y!=0){
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if (elves.find({x+it->first.x,y+it->first.y})!=elves.end()){
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neighbors++;
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goto neighborCheck;
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}
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}
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}
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}
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neighborCheck:
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if (neighbors>0){
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for (int j=0;j<e.orderList.size();j++){
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Direction orderDir=e.orderList[j];
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switch (orderDir){
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case NORTH:{
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if (elves.find({it->first.x,it->first.y-1})==elves.end()&&
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elves.find({it->first.x-1,it->first.y-1})==elves.end()&&
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elves.find({it->first.x+1,it->first.y-1})==elves.end()
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){
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vi2d dest={it->first.x,it->first.y-1};
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if (plannedMoves.find(dest)!=plannedMoves.end()){
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if (elves.find(plannedMoves[dest])==elves.end()){
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std::cout<<"WARNING! Could not find Elf @"<<plannedMoves[dest]<<std::endl;
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}
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elves[plannedMoves[dest]].dest=INVALID;
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//std::cout<<"Overlap found! Invalidated elves attempting to move to "<<plannedMoves[dest]<<std::endl;
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} else {
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plannedMoves[dest]=it->first;
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e.dest=dest;
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//std::cout<<"Elf @"<<it->first<<"Plans to move NORTH"<<std::endl;
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}
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goto orderComplete;
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}
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}break;
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case SOUTH:{
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if (elves.find({it->first.x,it->first.y+1})==elves.end()&&
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elves.find({it->first.x-1,it->first.y+1})==elves.end()&&
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elves.find({it->first.x+1,it->first.y+1})==elves.end()
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){
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vi2d dest={it->first.x,it->first.y+1};
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if (plannedMoves.find(dest)!=plannedMoves.end()){
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if (elves.find(plannedMoves[dest])==elves.end()){
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std::cout<<"WARNING! Could not find Elf @"<<plannedMoves[dest]<<std::endl;
|
||||
}
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elves[plannedMoves[dest]].dest=INVALID;
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//std::cout<<"Overlap found! Invalidated elves attempting to move to "<<plannedMoves[dest]<<std::endl;
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} else {
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plannedMoves[dest]=it->first;
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e.dest=dest;
|
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//std::cout<<"Elf @"<<it->first<<"Plans to move SOUTH"<<std::endl;
|
||||
}
|
||||
goto orderComplete;
|
||||
}
|
||||
}break;
|
||||
case WEST:{
|
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if (elves.find({it->first.x-1,it->first.y})==elves.end()&&
|
||||
elves.find({it->first.x-1,it->first.y-1})==elves.end()&&
|
||||
elves.find({it->first.x-1,it->first.y+1})==elves.end()
|
||||
){
|
||||
vi2d dest={it->first.x-1,it->first.y};
|
||||
if (plannedMoves.find(dest)!=plannedMoves.end()){
|
||||
if (elves.find(plannedMoves[dest])==elves.end()){
|
||||
std::cout<<"WARNING! Could not find Elf @"<<plannedMoves[dest]<<std::endl;
|
||||
}
|
||||
elves[plannedMoves[dest]].dest=INVALID;
|
||||
} else {
|
||||
plannedMoves[dest]=it->first;
|
||||
e.dest=dest;
|
||||
}
|
||||
//std::cout<<"Elf @"<<it->first<<"Plans to move WEST"<<std::endl;
|
||||
goto orderComplete;
|
||||
}
|
||||
}break;
|
||||
case EAST:{
|
||||
if (elves.find({it->first.x+1,it->first.y})==elves.end()&&
|
||||
elves.find({it->first.x+1,it->first.y-1})==elves.end()&&
|
||||
elves.find({it->first.x+1,it->first.y+1})==elves.end()
|
||||
){
|
||||
vi2d dest={it->first.x+1,it->first.y};
|
||||
if (plannedMoves.find(dest)!=plannedMoves.end()){
|
||||
if (elves.find(plannedMoves[dest])==elves.end()){
|
||||
std::cout<<"WARNING! Could not find Elf @"<<plannedMoves[dest]<<std::endl;
|
||||
}
|
||||
elves[plannedMoves[dest]].dest=INVALID;
|
||||
//std::cout<<"Overlap found! Invalidated elves attempting to move to "<<plannedMoves[dest]<<std::endl;
|
||||
} else {
|
||||
plannedMoves[dest]=it->first;
|
||||
e.dest=dest;
|
||||
}
|
||||
//std::cout<<"Elf @"<<it->first<<"Plans to move EAST"<<std::endl;
|
||||
goto orderComplete;
|
||||
}
|
||||
}break;
|
||||
}
|
||||
}
|
||||
orderComplete:;
|
||||
}
|
||||
}
|
||||
upperLeft={0,0};
|
||||
lowerRight={0,0};
|
||||
std::map<vi2d,Elf>newElves;
|
||||
bool moved=false;
|
||||
for (std::map<vi2d,Elf>::iterator it=elves.begin();it!=elves.end();++it){
|
||||
Elf&e=elves[it->first];
|
||||
if (e.dest!=INVALID){
|
||||
e.pos=e.dest;
|
||||
if (e.dest.x<upperLeft.x){
|
||||
upperLeft.x=e.dest.x;
|
||||
}
|
||||
if (e.dest.y<upperLeft.y){
|
||||
upperLeft.y=e.dest.y;
|
||||
}
|
||||
if (e.dest.x>lowerRight.x){
|
||||
lowerRight.x=e.dest.x;
|
||||
}
|
||||
if (e.dest.y>lowerRight.y){
|
||||
lowerRight.y=e.dest.y;
|
||||
}
|
||||
e.dest=INVALID;
|
||||
Direction temp=e.orderList[0];
|
||||
for (int j=0;j<e.orderList.size()-1;j++){
|
||||
Direction&dir=e.orderList[j];
|
||||
dir=e.orderList[j+1];
|
||||
}
|
||||
Direction&tempDir=e.orderList[e.orderList.size()-1];
|
||||
tempDir=temp;
|
||||
/*std::cout<<"Next orders: ";
|
||||
for (int j=0;j<e.orderList.size();j++){
|
||||
std::cout<<e.orderList[j];
|
||||
}
|
||||
std::cout<<std::endl;*/
|
||||
moved=true;
|
||||
} else {
|
||||
if (e.pos.x<upperLeft.x){
|
||||
upperLeft.x=e.pos.x;
|
||||
}
|
||||
if (e.pos.y<upperLeft.y){
|
||||
upperLeft.y=e.pos.y;
|
||||
}
|
||||
if (e.pos.x>lowerRight.x){
|
||||
lowerRight.x=e.pos.x;
|
||||
}
|
||||
if (e.pos.y>lowerRight.y){
|
||||
lowerRight.y=e.pos.y;
|
||||
}
|
||||
Direction temp=e.orderList[0];
|
||||
for (int j=0;j<e.orderList.size()-1;j++){
|
||||
Direction&dir=e.orderList[j];
|
||||
dir=e.orderList[j+1];
|
||||
}
|
||||
Direction&tempDir=e.orderList[e.orderList.size()-1];
|
||||
tempDir=temp;
|
||||
/*std::cout<<"Next orders: ";
|
||||
for (int j=0;j<e.orderList.size();j++){
|
||||
std::cout<<e.orderList[j];
|
||||
}
|
||||
std::cout<<std::endl;*/
|
||||
}
|
||||
newElves[e.pos]=e;
|
||||
}
|
||||
|
||||
elves=newElves;
|
||||
if (!moved){
|
||||
break;
|
||||
}
|
||||
iterations++;
|
||||
}
|
||||
for (int y=upperLeft.y;y<=lowerRight.y;y++){
|
||||
for (int x=upperLeft.x;x<=lowerRight.x;x++){
|
||||
if (elves.find({x,y})==elves.end()){
|
||||
std::cout<<'.';
|
||||
} else {
|
||||
std::cout<<'#';
|
||||
}
|
||||
}
|
||||
std::cout<<std::endl;
|
||||
}
|
||||
|
||||
int sum=0;
|
||||
for (int x=upperLeft.x;x<=lowerRight.x;x++){
|
||||
for (int y=upperLeft.y;y<=lowerRight.y;y++){
|
||||
if (elves.find({x,y})==elves.end()){
|
||||
sum++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
std::cout<<"Iteration Count: "<<iterations<<std::endl;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
6
smallinput
Normal file
6
smallinput
Normal file
@ -0,0 +1,6 @@
|
||||
.....
|
||||
..##.
|
||||
..#..
|
||||
.....
|
||||
..##.
|
||||
.....
|
||||
Loading…
x
Reference in New Issue
Block a user