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sim_bodies_generator.cpp
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sim_bodies_generator.cpp
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#include<cstring>
#include<vector>
#include<iostream>
#include<math.h>
#include "./sim_bodies_generator.hpp"
config generate_config(const std::vector<std::string>& tokens){
config ret;
std::string temp;
for(auto itr = tokens.begin();itr != tokens.end();++itr){
temp = *itr;
if( strcmp(temp.c_str(),"SET") != 0 && strcmp(temp.c_str(),"set") != 0 ){
break;
}else{
++itr;
temp = *itr;
if(!strcmp(temp.c_str(),"g")){
ret.G = false;
ret.g = true;
}else if(!strcmp(temp.c_str(),"G")){
ret.g = false;
ret.G = true;
}else if(!strcmp(temp.c_str(),"em")){
ret.em = true;
}else if(!strcmp(temp.c_str(),"tslice")){
++itr;
ret.time_slice = atof((*itr).c_str());
}else if(!strcmp(temp.c_str(),"delay")){
++itr;
ret.delay = atoi((*itr).c_str());
}else if(!strcmp(temp.c_str(),"e")){
++itr;
ret.e = atof((*itr).c_str());
}else{
std::cerr<<"Expected \'g\' ,\'G\' ,\'em\' .\'tslice\' or \'delay\' after SET.. got : \'"<<temp<<"\'\nExiting...";
exit(1);
}
}
}
return ret;
}
void generate_sim_bodies(const std::vector<std::string>& tokens,std::vector<Sim_Body>& bodies){
auto itr = tokens.begin();
while(itr != tokens.end()){
if(strcmp((*itr).c_str(),"SET") == 0 || strcmp((*itr).c_str(),"set") == 0){
++itr; // Goes to the SET arg
if(!strcmp((*itr).c_str(),"tslice") || !strcmp((*itr).c_str(),"delay") || !strcmp((*itr).c_str(),"e")){
++itr;
}
++itr; // Goes to next instruction token
}else{
break;
}
}
for(;itr!=tokens.end();++itr){
if(strcmp((*itr).c_str(),"ADD") != 0 && strcmp((*itr).c_str(),"add") != 0){
std::cerr<<"Error : Invalid Token Found : "<<*itr<<"\nExiting..."<<std::endl;
exit(1);
}
++itr;
if(strcmp((*itr).c_str(),"MBALL") == 0 || strcmp((*itr).c_str(),"mball") == 0){
add_mball(itr,bodies);
}else if(strcmp((*itr).c_str(),"QBALL") == 0 || strcmp((*itr).c_str(),"qball") == 0){
add_qball(itr,bodies);
}else if(strcmp((*itr).c_str(),"MQBALL") == 0 || strcmp((*itr).c_str(),"mqball") == 0){
add_mqball(itr,bodies);
}else if(strcmp((*itr).c_str(),"MPT") == 0 || strcmp((*itr).c_str(),"mpt") == 0){
add_mpt(itr,bodies);
}else if(strcmp((*itr).c_str(),"QPT") == 0 || strcmp((*itr).c_str(),"qpt") == 0){
add_mpt(itr,bodies);
}else if(strcmp((*itr).c_str(),"MQPT") == 0 || strcmp((*itr).c_str(),"mqpt") == 0){
add_mqpt(itr,bodies);
}else if(strcmp((*itr).c_str(),"ST_RECT") == 0 || strcmp((*itr).c_str(),"st_rect") == 0){
add_st_rect(itr,bodies);
}else{
std::cerr<<"Error : Invalid Token Found : "<<*itr<<"\nExiting..."<<std::endl;
exit(1);
}
}
}
void read_and_set_centre_vel(std::vector<std::string>::const_iterator& itr,Sim_Body& s){
++itr;
s.xc = atof((*itr).c_str());
++itr;
s.yc = atof((*itr).c_str());
++itr;
s.zc = atof((*itr).c_str());
++itr;
s.vx = atof((*itr).c_str());
++itr;
s.vy = atof((*itr).c_str());
++itr;
s.vz = atof((*itr).c_str());
}
void add_mball(std::vector<std::string>::const_iterator& itr,std::vector<Sim_Body>& bodies){
Sphere s;
s.type = SPHERE;
read_and_set_centre_vel(itr,s);
++itr;
s.r = atof((*itr).c_str());
++itr;
s.mass = atof((*itr).c_str());
++itr;
if(strcmp((*itr).c_str(),"TRACE") == 0 || strcmp((*itr).c_str(),"trace") == 0){
s.trace = true;
++itr;
}
if(strcmp((*itr).c_str(),"ENDBODY") != 0 && strcmp((*itr).c_str(),"endbody") != 0){
std::cerr<<"Error : Invalid Token Found : MBALL"<<*itr<<"\nExiting..."<<std::endl;
exit(1);
}
bodies.push_back(s);
return;
}
void add_qball(std::vector<std::string>::const_iterator& itr,std::vector<Sim_Body>& bodies){
Sphere s;
s.type = SPHERE;
read_and_set_centre_vel(itr,s);
++itr;
s.r = atof((*itr).c_str());
++itr;
s.charge = atof((*itr).c_str());
++itr;
if(strcmp((*itr).c_str(),"TRACE") == 0 || strcmp((*itr).c_str(),"trace") == 0){
s.trace = true;
++itr;
}
if(strcmp((*itr).c_str(),"ENDBODY") != 0 && strcmp((*itr).c_str(),"endbody") != 0){
std::cerr<<"Error : Invalid Token Found : QBALL"<<*itr<<"\nExiting..."<<std::endl;
exit(1);
}
bodies.push_back(s);
return;
}
void add_mqball(std::vector<std::string>::const_iterator& itr,std::vector<Sim_Body>& bodies){
Sphere s;
s.type = SPHERE;
read_and_set_centre_vel(itr,s);
++itr;
s.r = atof((*itr).c_str());
++itr;
s.mass = atof((*itr).c_str());
++itr;
s.charge = atof((*itr).c_str());
++itr;
if(strcmp((*itr).c_str(),"TRACE") == 0 || strcmp((*itr).c_str(),"trace") == 0){
s.trace = true;
++itr;
}
if(strcmp((*itr).c_str(),"ENDBODY") != 0 && strcmp((*itr).c_str(),"endbody") != 0){
std::cerr<<"Error : Invalid Token Found : MQBALL"<<*itr<<"\nExiting..."<<std::endl;
exit(1);
}
bodies.push_back(s);
return;
}
void add_mpt(std::vector<std::string>::const_iterator& itr,std::vector<Sim_Body>& bodies){
Point p;
p.type = POINT;
read_and_set_centre_vel(itr,p);
++itr;
p.mass = atof((*itr).c_str());
++itr;
if(strcmp((*itr).c_str(),"TRACE") == 0 || strcmp((*itr).c_str(),"trace") == 0){
p.trace = true;
++itr;
}
if(strcmp((*itr).c_str(),"ENDBODY") != 0 && strcmp((*itr).c_str(),"endbody") != 0){
std::cerr<<"Error : Invalid Token Found : "<<*itr<<"\nExiting..."<<std::endl;
exit(1);
}
bodies.push_back(p);
return;
}
void add_qpt(std::vector<std::string>::const_iterator& itr,std::vector<Sim_Body>& bodies){
Point p;
p.type = POINT;
read_and_set_centre_vel(itr,p);
++itr;
p.mass = atof((*itr).c_str());
++itr;
if(strcmp((*itr).c_str(),"TRACE") == 0 || strcmp((*itr).c_str(),"trace") == 0){
p.trace = true;
++itr;
}
if(strcmp((*itr).c_str(),"ENDBODY") != 0 && strcmp((*itr).c_str(),"endbody") != 0){
std::cerr<<"Error : Invalid Token Found : "<<*itr<<"\nExiting..."<<std::endl;
exit(1);
}
bodies.push_back(p);
return;
}
void add_mqpt(std::vector<std::string>::const_iterator& itr,std::vector<Sim_Body>& bodies){
Point p;
p.type = POINT;
read_and_set_centre_vel(itr,p);
++itr;
p.mass = atof((*itr).c_str());
++itr;
p.charge = atof((*itr).c_str());
++itr;
if(strcmp((*itr).c_str(),"TRACE") == 0 || strcmp((*itr).c_str(),"trace") == 0){
p.trace = true;
++itr;
}
if(strcmp((*itr).c_str(),"ENDBODY") != 0 && strcmp((*itr).c_str(),"endbody") != 0){
std::cerr<<"Error : Invalid Token Found : "<<*itr<<"\nExiting..."<<std::endl;
exit(1);
}
bodies.push_back(p);
return;
}
void add_st_rect(std::vector<std::string>::const_iterator& itr,std::vector<Sim_Body>& bodies){
++itr;
float xc = atof((*itr).c_str());
++itr;
float yc = atof((*itr).c_str());
++itr;
float zc = atof((*itr).c_str());
++itr;
float height = atof((*itr).c_str());
++itr;
float width = atof((*itr).c_str());
++itr;
float mass = atof((*itr).c_str());
++itr;
float rot = atof((*itr).c_str());\
//* -ve sign is for anti-clockwise Adjustment
rot = -rot*M_PI/180;
Static_Rect srect(xc,yc,height,width,rot);
srect.type = STAT_RECT;
srect.mass = mass;
++itr;
if(strcmp((*itr).c_str(),"ENDBODY") != 0 && strcmp((*itr).c_str(),"endbody") != 0){
std::cerr<<"Error : Invalid Token Found : "<<*itr<<"\nExiting..."<<std::endl;
exit(1);
}
bodies.push_back(srect);
return;
}