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#include "bullettype.h"
//***************************************************************************
BulletTYPE :: BulletTYPE ( )
: myBullets ( NULL ),
myNumBullets ( 0 ),
myBulletImages ( )
{ }
//***************************************************************************
BulletTYPE :: BulletTYPE ( char * fileName )
: myBullets ( NULL ),
myNumBullets ( 0 )
{
myBulletImages.LoadImages ( fileName );
}
//***************************************************************************
BulletTYPE :: ~BulletTYPE ()
{
BulletNodeTYPE *temp;
while ( myBullets != NULL )
{
temp = myBullets;
myBullets = myBullets->next;
delete temp;
}
}
//***************************************************************************
bool BulletTYPE :: Fire ( int xcoord, int ycoord, WeaponEnum new_weapon )
{
return Fire ( xcoord,ycoord, XBulletVelocities [new_weapon], YBulletVelocities [new_weapon],new_weapon);
}
//***************************************************************************
bool BulletTYPE :: Fire ( int xcoord, int ycoord, int dx, int dy, WeaponEnum new_weapon )
{
if ( myNumBullets < MAX_NUM_BULLETS )
{
myNumBullets++;
BulletNodeTYPE *NewShot = new BulletNodeTYPE;
NewShot->xPos = xcoord +35/2;
NewShot->yPos = ycoord + 5;
NewShot->visible = true;
NewShot->dx = dx;
NewShot->dy = dy;
NewShot->weapon = new_weapon;
NewShot->next = myBullets;
myBullets = NewShot;
return true;
}
return false;
}
//***************************************************************************
void BulletTYPE :: UpdateAndDisplayShot (BITMAP * buffer)
{
// we are putting the display with update because they are always called
// together and we only want to go traverse the list once, speed wins out
BulletNodeTYPE *current = myBullets;
BulletNodeTYPE *previous = NULL;
BulletNodeTYPE *DeleteNode = NULL;
while ( current != NULL )
{
current->yPos -= current->dy;
current->xPos -= current->dx;
if ( current->yPos <= 0 || current->yPos >= SCREEN_HEIGHT) // if the bullet goes off-screen delete it
{
DeleteNode = current;
current = current->next;
if ( myBullets == DeleteNode )
myBullets = DeleteNode->next;
else
previous->next = DeleteNode->next;
myNumBullets--;
delete DeleteNode;
}
else
{
if ( current->visible )
draw_sprite (buffer, myBulletImages.GetImage(current->weapon), current->xPos, current->yPos);
previous = current;
current = current->next;
}
}
}
//**************************************************************************
void BulletTYPE :: LoadWeapon ( const char * fileName )
{
myBulletImages.LoadImages ( fileName );
myBulletMask.resize ( myBulletImages.Length() );
init_sp_bb ( myBulletMask );
for ( int i = 0; i < myBulletMask.length(); i++ )
mk_spr_mask (myBulletImages.GetImage(i), myBulletMask[i] );
}
//**************************************************************************
BulletNodeTYPE * BulletTYPE :: GetBulletList ( )
{
return myBullets;
}
//**************************************************************************
BITMAP * BulletTYPE :: GetImage ( int index )
{
return myBulletImages.GetImage ( index );
}
//**************************************************************************
spr_mask * BulletTYPE :: GetMask ( int index )
{
return (&myBulletMask[index]);
}
//**************************************************************************
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