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#include "Maelstrom_Globals.h"
#include "object.h"
/* The screen object class */
Object::Object(int X, int Y, int Xvec, int Yvec, Blit *blit, int PhaseTime)
{
Points = DEFAULT_POINTS;
Set_Blit(blit);
if ( (phasetime=PhaseTime) != NO_PHASE_CHANGE )
phase = FastRandom(myblit->numFrames);
else
phase = 0;
nextphase = 0;
playground.left = (gScrnRect.left<<SPRITE_PRECISION);
playground.right = (gScrnRect.right<<SPRITE_PRECISION);
playground.top = (gScrnRect.top<<SPRITE_PRECISION);
playground.bottom = (gScrnRect.bottom<<SPRITE_PRECISION);
SetPos(X, Y);
xvec = Xvec;
yvec = Yvec;
solid = 1;
shootable = 1;
HitPoints = DEFAULT_HITS;
Exploding = 0;
Set_TTL(-1);
onscreen = 0;
++gNumSprites;
}
Object::~Object()
{
//error("Object destructor called!\n");
--gNumSprites;
}
/* What happens when we have been shot up or crashed into */
/* Returns 1 if we die here, instead of go into explosion */
int
Object::Explode(void)
{
if ( Exploding )
return(0);
Exploding = 1;
solid = 0;
shootable = 0;
phase = 0;
nextphase = 0;
phasetime = 2;
xvec = yvec = 0;
Set_Blit(gExplosion);
Set_TTL(myblit->numFrames*phasetime);
ExplodeSound();
return(0);
}
/* Movement */
/* This function returns 0, or -1 if the sprite died */
int
Object::Move(int Frozen) // This is called every timestep.
{
if ( ! Frozen )
SetPos(x+xvec, y+yvec);
/* Phase, but don't draw our new position */
Phase();
/* Does this object have a lifetime? */
if ( TTL && (--TTL == 0) ) { // This sprite died...
return(BeenTimedOut());
}
return(0);
}
void
Object::BlitSprite(void)
{
screen->QueueBlit(x>>SPRITE_PRECISION, y>>SPRITE_PRECISION,
myblit->sprite[phase]);
onscreen = 1;
}
void
Object::UnBlitSprite(void)
{
/* Only unblit if we were onscreen */
if ( ! onscreen )
return;
if ( myblit->isSmall ) {
screen->Clear(x>>SPRITE_PRECISION, y>>SPRITE_PRECISION, 16, 16,
DOCLIP);
} else {
screen->Clear(x>>SPRITE_PRECISION, y>>SPRITE_PRECISION, 32, 32,
DOCLIP);
}
onscreen = 0;
}
/* Sound functions */
void
Object::HitSound(void)
{
sound->PlaySound(gSteelHit, 3);
}
void
Object::ExplodeSound(void)
{
sound->PlaySound(gExplosionSound, 3);
}
/* The objects!! */
Object *gSprites[MAX_SPRITES];
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