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#include <vector>
   struct bullet
   {
	   int id;
	   int life;
   };
	vector<*bullet> bul;
void makebullet(int,int,int);
void updatebullet();
void makebullet(int obj,int limb, int lif)
{
	int i=bul.size() + 201;
	bul.push_back();
	dbMakeObjectCube(i,10.0);
	float x,y,z,ax,ay,az;
	x=dbObjectPositionX(i);
	y=dbObjectPositionY(i);
	z=dbObjectPositionZ(i);
	ax=dbObjectAngleX(i);
	ay=dbObjectAngleY(i);
	az=dbObjectAngleZ(i);
	dbPositionObject(i,x,y,z);
	dbRotateObject(i,ax,ay,az);
}

void updatebullet()
{
	for ( int i=0 ; i<=bul.size();i++)
	{
		if ( dbObjectExist(bul(i).id))
		{
			dbMoveObject(bul(i).id,1);
			bul(i).life--;
			if (bul(i).life<0)
			{
				dbDeleteObject(bul(i).id);
				bul.erase(i);
			}
		}
	}
}

f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(47) : error C2275: 'bullet' : illegal use of this type as an expression
        f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(43) : see declaration of 'bullet'
f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(47) : error C2133: 'bul' : unknown size
f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(47) : error C2512: 'std::vector' : no appropriate default constructor available
f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(344) : error C2662: 'std::vector<_Ty,_Alloc>::size' : cannot convert 'this' pointer from 'std::vector' to 'const std::vector<_Ty,_Alloc> &'
        Reason: cannot convert from 'std::vector' to 'const std::vector<_Ty,_Alloc>'
        Conversion requires a second user-defined-conversion operator or constructor
f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(345) : error C2660: 'std::vector<_Ty,_Alloc>::push_back' : function does not take 0 arguments
f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(360) : error C2662: 'std::vector<_Ty,_Alloc>::size' : cannot convert 'this' pointer from 'std::vector' to 'const std::vector<_Ty,_Alloc> &'
        Reason: cannot convert from 'std::vector' to 'const std::vector<_Ty,_Alloc>'
        Conversion requires a second user-defined-conversion operator or constructor
f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(362) : error C2064: term does not evaluate to a function taking 1 arguments
f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(362) : error C2228: left of '.id' must have class/struct/union
f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(364) : error C2064: term does not evaluate to a function taking 1 arguments
f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(364) : error C2228: left of '.id' must have class/struct/union
f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(365) : error C2064: term does not evaluate to a function taking 1 arguments
f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(365) : error C2228: left of '.life' must have class/struct/union
f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(366) : error C2064: term does not evaluate to a function taking 1 arguments
f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(366) : error C2228: left of '.life' must have class/struct/union
f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(368) : error C2064: term does not evaluate to a function taking 1 arguments
f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(368) : error C2228: left of '.id' must have class/struct/union
f:\arif projects\project paf vs aliens\project paf vs aliens\main.cpp(369) : error C2663: 'std::vector<_Ty,_Alloc>::erase' : 2 overloads have no legal conversion for 'this' pointer
Build log was saved at "file://f:\arif projects\Project PAF vs Aliens\Project PAF vs Aliens\Debug\BuildLog.htm"
Project PAF vs Aliens - 17 error(s), 0 warning(s)
========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ==========

	vector<*bullet> bul;

	vector<bullet*> bul;

bul.push_back();

bul[i]->id = 4

bul.push_back(new Bullet)

delete bul[i];
bul.erase(bul.begin()+somenumber);

for ( int i=0 ; i<=bul.size();i++)

int obj_id()
{
   int c=1;
   while(dbObjectExist(c)
      c++;
   return(c);
}

delete bul;

bul->id

libcpmtd.lib(xdebug.obj) : warning LNK4098: defaultlib 'libcmt.lib' conflicts with use of other libs; use /NODEFAULTLIB:library
Main.obj : error LNK2019: unresolved external symbol __CrtDbgReportW referenced in function "public: struct bullet * & __thiscall std::vector<struct bullet *,class std::allocator<struct bullet *> >::operator[](unsigned int)" (??A?$vector@PAUbullet@@V?$allocator@PAUbullet@@@std@@@std@@QAEAAPAUbullet@@I@Z)
libcpmtd.lib(stdthrow.obj) : error LNK2001: unresolved external symbol __CrtDbgReportW
libcpmtd.lib(xdebug.obj) : error LNK2019: unresolved external symbol __malloc_dbg referenced in function "void * __cdecl operator new(unsigned int,struct std::_DebugHeapTag_t const &,char *,int)" (??2@YAPAXIABU_DebugHeapTag_t@std@@PADH@Z)
libcpmtd.lib(xdebug.obj) : error LNK2019: unresolved external symbol __free_dbg referenced in function "void __cdecl operator delete(void *,struct std::_DebugHeapTag_t const &,char *,int)" (??3@YAXPAXABU_DebugHeapTag_t@std@@PADH@Z)
Debug\Project PAF vs Aliens.exe : fatal error LNK1120: 3 unresolved externals
Build log was saved at "file://f:\arif projects\Project PAF vs Aliens\Project PAF vs Aliens\Debug\BuildLog.htm"
Project PAF vs Aliens - 5 error(s), 1 warning(s)
========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ==========

// bullet class

#define max_bullets 20
#define max_life 150
#define bullet_pause 10

class bullet_class {
public:
	// array - object num, life span
	int object[max_bullets][2];

	// counter for repeat firing
	int count;

	// constructor to setup bullet objects
	bullet_class()
	{
		int c;

		// for speed setup objects now but hide them
		for (c=0; c<max_bullets; c++)
		{
			object[c][0]=findfreeobject();

			dbMakeObjectSphere(object[c][0],2);

			dbColorObject(object[c][0],0xffff00);

			// initialise the collision info
			SC_SetupObject(object[c][0],1,2);

			// hide it until we need it
			dbHideObject(object[c][0]);

			// reset counter to 0 so it's ready
			object[c][1]=0;
		}

		// set default counter
		count=0;
	}

	// destructor to delete all the bullet objects (clean exit)
	~bullet_class()
	{
		int c;

		for (c=0; c<max_bullets; c++)
		{
			dbDeleteObject(object[c][0]);
		}
	}

	void fire(int flag,int player)
	{
		int c; // I like using c cos you end up putting c++ somewhere

		if (count>0) count--;

		for (c=0; c<max_bullets; c++)
		{
			if (object[c][1]>0) // bullet is active
			{
				dbMoveObject(object[c][0],5); // move it forward

				// update the position and rotation for collision
				SC_UpdateObject(object[c][0]);

				object[c][1]--;

				// I've not added the bounce back here after the collision
				// because the bullet dies
				if (SC_GroupCollision(object[c][0],2) || object[c][1]==0)
				{
					dbHideObject(object[c][0]);
				}
			}
			// Add a new bullet if the counter has finished and left click pressed
			// all the bullet objects are pre made so they only need to be
			// shown or hidden
			else if (count==0 && flag==1)
			{
				dbShowObject(object[c][0]);

				// position the bullet to the players
				dbPositionObject(object[c][0],
					dbObjectPositionX(player),
					dbObjectPositionY(player),
					dbObjectPositionZ(player) );

				// set it to the correct angles
				dbSetObjectToObjectOrientation(object[c][0],player);

				// set the life of the bullet
				object[c][1]=max_life;

				// We're not after another left mouse click so reset it
				flag=0;

				// countdown before next bullet can be fired
				count=bullet_pause;
			}
		}
	}

// end of class
};

struct bullets
{
	int bid;
	int blife;
};
vector<bullets> bul;
vector<bullets>::iterator bit;

void makebullet(int obj)
{
	bullets temp;
	temp.bid=findfreeobject();
	temp.blife=10;
	bul.push_back(temp);

	float x,y,z,ax,ay,az;
	x=dbObjectPositionX(obj);
	y=dbObjectPositionY(obj);
	z=dbObjectPositionZ(obj);
	ax=dbObjectAngleX(obj);
	ay=dbObjectAngleY(obj);
	az=dbObjectAngleZ(obj);
	dbMakeObjectCube(bul[bul.size()].bid,1.0);
	dbPositionObject(bul[bul.size()].bid,x,y,z);
	dbRotateObject(bul[bul.size()].bid,ax,ay,az);
}
void updatebullet()
{
	for(int y=0 ; y<bul.size(); y++)
	{
		dbMoveObject(bul[y].bid,50.0);
		bul[y].blife--;
		if(bul[y].blife<0)
		{
			dbDeleteObject(bul[y].bid);
			bit=bul.begin()+y;
			bul.erase(bit);
			
		}
	}
}

if (dbSpaceKey())
    makebullet(player);

.
.
.
.
updatebullet();

bool bSpaceDown = false;
..
..
..
if ( dbSpaceKey ( ) )
bSpaceDown = true;
if ( !dbSpaceKey ( ) && bSpaceDown )
{
bSpaceDown = false;
spawn a bullet now
}

int TMR = dbTimer ( );
..
..
..
if ( dbSpaceDown ( ) && dbTimer ( ) - TMR > delayInMilliSecond )
{
TMR = dbTimer ( );
spawn a bullet
}

int findfreeobject()
.
.
.

int findfreeobject()
{
	int curr=1;
	while (dbObjectExist(curr)) curr++;
	return curr;
}

void makebullet(int obj)
{
	bullets temper;
	temper.bid=bul.size()+1000;
	temper.blife=60;
	bul.push_back(temper);

	float x,y,z,ax,ay,az;
	x=dbObjectPositionX(obj);
	y=dbObjectPositionY(obj);
	z=dbObjectPositionZ(obj);
	ax=dbObjectAngleX(obj);
	ay=dbObjectAngleY(obj);
	az=dbObjectAngleZ(obj);
	dbMakeObjectCube(bul[bul.size()-1].bid,1.0);
	dbPositionObject(bul[bul.size()-1].bid,x,y,z);
	dbRotateObject(bul[bul.size()-1].bid,ax,ay,az);
}
void updatebullet()
{
	for(int i=0 ; i < bul.size();i++)
	{
		dbMoveObject(bul[i].bid,30.0);
		bul[i].blife--;
		if(bul[i].blife<0)
		{
			dbDeleteObject(bul[i].bid);
			bul.erase(bul.begin()+i);
			i--;
			
		}
	}
}