if (distX >= 1)			distX /= 5;		if (distY >= 1)			distY /= 5;		player.shield -= (int)(10 - distX);		player.shield -= (int)(10 - distY);		Math::limitInt(&player.shield, 0, player.maxShield);		player.hit = 10;		return 1;	}	return 0;}/*Fill in later...*/void fireRay(object *attacker){	SDL_Rect ray;	if (attacker->face == 0)	{		ray.x = (int)(attacker->x + attacker->image[0]->w);	}	else	{		ray.x = (int)(attacker->x - 800);	}	ray.y = (int)(attacker->y + attacker->engineY - 1);	ray.h = 3;	ray.w = 800;	int red = SDL_MapRGB(graphics.screen->format, rand() % 256, 0x00, 0x00);	SDL_FillRect(graphics.screen, &ray, red);	graphics.addBuffer(ray.x, ray.y, ray.w, ray.h);	if (attacker != &player)	{		if (player.shield > 0)		{			if (Collision::collision(player.x, player.y, player.image[0]->w, player.image[0]->h, ray.x, ray.y, ray.w, ray.h) && (!engine.cheatShield))			{				if (player.shield > engine.lowShield)				{					if (player.shield - 1 <= engine.lowShield)					{						setInfoLine("!!! WARNING: SHIELD LOW !!!", FONT_RED);					}				}				player.shield--;				addExplosion(player.x, player.y, E_SMALL_EXPLOSION);				playSound(SFX_HIT);				if (player.shield < 1)				{					playSound(SFX_DEATH);					playSound(SFX_EXPLOSION);				}			}		}	}	object *anEnemy = enemy;	for (int i = 0 ; i < MAX_ALIENS ; i++)	{		if (anEnemy->flags & FL_IMMORTAL)			continue;		if ((anEnemy->shield > 0) && (attacker != anEnemy) && (attacker->classDef != anEnemy->classDef))		{			if (Collision::collision(anEnemy->x, anEnemy->y, anEnemy->image[0]->w, anEnemy->image[0]->h, ray.x, ray.y, ray.w, ray.h))			{				anEnemy->shield--;				addExplosion(anEnemy->x, anEnemy->y, E_SMALL_EXPLOSION);				playSound(SFX_HIT);				if (anEnemy->shield < 1)				{					destroyAlien(attacker, anEnemy);				}			}		}		*anEnemy++;	}	attacker->ammo[0]--;	if (attacker->ammo[0] < 1)		attacker->flags -= FL_FIRERAY;}/*This handles active bullets in a linked list. The current bullet andprevious bullet pointers are first assigned to the main header bulletand each successive bullet is pulled out. Bullets are moved in theirdelta coordinates, with rockets having fire trails added to them. Seperatecollision checks are done for a bullet that belongs to the enemy and onethat belongs to a player. However rockets can hit anyone. Upon an enemybeing killed, mission requirements are checked and collectables are randomlyspawned.*/void doBullets(){	object *bullet = engine.bulletHead;	object *prevBullet = engine.bulletHead;	engine.bulletTail = engine.bulletHead;	object *theEnemy, *theCargo;	signed char okayToHit = 0;	float homingMissileSpeed = 0;	while (bullet->next != NULL)	{		bullet = bullet->next;		if (bullet->active == 1)		{			if (bullet->flags & WF_HOMING)			{			  	if (bullet->target == NULL)					bullet->target = getRandomEnemy(bullet);				if (bullet->owner->flags & FL_FRIEND)					homingMissileSpeed = 0.25;				else					homingMissileSpeed = 0.05;			}			if (bullet->id == WT_ROCKET)			{				addExplosion(bullet->x, bullet->y, E_SMALL_EXPLOSION);			}			else if (bullet->id == WT_MICROROCKET)			{				addExplosion(bullet->x, bullet->y, E_TINY_EXPLOSION);			}			if ((bullet->flags & WF_AIMED) || (bullet->flags & WF_THIN_SPREAD))			{				graphics.blit(bullet->image[0], (int)(bullet->x - bullet->dx), (int)(bullet->y - bullet->dy));			}			if (bullet->id == WT_CHARGER)			{				for (int i = 0 ; i < bullet->damage ; i++)					graphics.blit(bullet->image[0], (int)(bullet->x - Math::rrand(-(bullet->damage / 3), 0)), (int)(bullet->y + Math::rrand(-3, 3)));			}			graphics.blit(bullet->image[0], (int)bullet->x, (int)bullet->y);			bullet->x += bullet->dx;			bullet->y += bullet->dy;			if (bullet->target != NULL)			{				if (bullet->x < bullet->target->x)					Math::limitFloat(&(bullet->dx += homingMissileSpeed), -15, 15);				if (bullet->x > bullet->target->x)					Math::limitFloat(&(bullet->dx -= homingMissileSpeed), -15, 15);				//Rocket is (more or less) inline with target. Fly straight				if ((bullet->x > bullet->target->x - 1) && (bullet->x < bullet->target->x + 5))					bullet->dx = 0;				if (bullet->y < bullet->target->y)					Math::limitFloat(&(bullet->dy += homingMissileSpeed), -15, 15);				if (bullet->y > bullet->target->y)					Math::limitFloat(&(bullet->dy -= homingMissileSpeed), -15, 15);				//Rocket is (more or less) inline with target. Fly straight				if ((bullet->y > bullet->target->y - 1) && (bullet->y < bullet->target->y + 5))					bullet->dy = 0;				if ((bullet->target->shield < 1) || (bullet->target->flags & FL_ISCLOAKED))					bullet->target = NULL;			}			bullet->x += engine.ssx;			bullet->y += engine.ssy;			for (int i = 0 ; i < MAX_ALIENS ; i++)			{				theEnemy = &enemy[i];				if ((theEnemy->shield < 1) || (!theEnemy->active))					continue;				okayToHit = 0;				if ((bullet->flags & WF_FRIEND) && (theEnemy->flags & FL_WEAPCO))					okayToHit = 1;				if ((bullet->flags & WF_WEAPCO) && (theEnemy->flags & FL_FRIEND))					okayToHit = 1;				if ((bullet->id == WT_ROCKET) || (bullet->id == WT_LASER) || (bullet->id == WT_CHARGER))					okayToHit = 1;				if (bullet->owner == theEnemy->owner)					okayToHit = 0;				if (okayToHit)				{					if ((bullet->active == 1) && (Collision::collision(bullet, theEnemy)))					{						if (bullet->owner == &player)						{							currentGame.hits++;							if ((theEnemy->classDef == CD_PHOEBE) || (theEnemy->classDef == CD_URSULA))								getMissFireMessage(theEnemy);						}						if (!(theEnemy->flags & FL_IMMORTAL))						{							if (!(bullet->flags & WF_DISABLE))								theEnemy->shield -= bullet->damage;							else								theEnemy->systemPower -= bullet->damage;							theEnemy->hit = 5;						}						if (theEnemy->flags & FL_CANNOTDIE)						{							Math::limitInt(&theEnemy->shield, 1, theEnemy->maxShield);							if (theEnemy->shield == 1)							{								if (currentGame.area != 26)								{									if (!(theEnemy->flags & FL_LEAVESECTOR))									{										theEnemy->flags += FL_LEAVESECTOR;										if (theEnemy->flags & FL_CIRCLES)											theEnemy->flags -= FL_CIRCLES;										if (currentGame.area == 11)											setRadioMessage(FACE_KLINE, "Seems I underestimated you, Bainfield! We'll meet again!", 1);										else if (currentGame.area == 25)											setRadioMessage(FACE_SID, "Chris, Kethlan is getting away!", 1);									}								}								else								{									setKlineAttackMethod(theEnemy);								}							}						}						if ((theEnemy->flags & FL_RUNSAWAY) && ((rand() % 50) == 0))						{							if (!(theEnemy->flags & FL_LEAVESECTOR))								theEnemy->flags += FL_LEAVESECTOR;						}						if (bullet->id != WT_CHARGER)						{							bullet->active = 0;							bullet->shield = 0;						}						else if (bullet->id == WT_CHARGER)						{							bullet->shield -= theEnemy->shield;							if (bullet->shield < 0)								bullet->active = 0;						}						playSound(SFX_HIT);						if (theEnemy->AIType == AI_EVASIVE)							theEnemy->thinktime = 0;						if (theEnemy->shield < 1)							destroyAlien(bullet, theEnemy);						if (theEnemy->systemPower < 1)						{							if (!(theEnemy->flags & FL_DISABLED))							{								theEnemy->flags += FL_DISABLED;								updateMissionRequirements(M_DISABLE_TARGET, theEnemy->classDef, 1);							}							theEnemy->systemPower = 0;							if (theEnemy->classDef == CD_KLINE)								theEnemy->systemPower = theEnemy->maxShield;						}						if (bullet->id == WT_ROCKET)							addExplosion(bullet->x, bullet->y, E_BIG_EXPLOSION);						else							addExplosion(bullet->x, bullet->y, E_SMALL_EXPLOSION);					}				}			}			// Check for bullets hitting player			if ((bullet->flags & WF_WEAPCO) || (bullet->id == WT_ROCKET) || (bullet->id == WT_LASER) || (bullet->id == WT_CHARGER))			{				if ((bullet->active == 1) && (player.shield > 0) && (Collision::collision(bullet, &player)) && (bullet->owner != &player))				{					if ((!engine.cheatShield) || (engine.missionCompleteTimer != 0))					{						if (player.shield > engine.lowShield)						{							if (player.shield - bullet->damage <= engine.lowShield)							{								setInfoLine("!!! WARNING: SHIELD LOW !!!", FONT_RED);							}						}						player.shield -= bullet->damage;						Math::limitInt(&player.shield, 0, player.maxShield);						player.hit = 5;					}					if ((bullet->owner->classDef == CD_PHOEBE) || (bullet->owner->classDef == CD_URSULA))						getPlayerHitMessage(bullet->owner);					if (bullet->id != WT_CHARGER)					{						bullet->active = 0;						bullet->shield = 0;					}					else if (bullet->id == WT_CHARGER)					{						bullet->shield -= theEnemy->shield;						if (bullet->shield < 0)							bullet->active = 0;					}					playSound(SFX_HIT);					if (bullet->id == WT_ROCKET)						addExplosion(bullet->x, bullet->y, E_BIG_EXPLOSION);					else						addExplosion(bullet->x, bullet->y, E_SMALL_EXPLOSION);				}			}		}		if (((bullet->owner == &player)) || (bullet->id == WT_ROCKET))		{			for (int j = 0 ; j < 20 ; j++)			{				theCargo = &cargo[j];				if (theCargo->active)				{					if (Collision::collision(bullet, theCargo))					{						bullet->active = 0;						addExplosion(bullet->x, bullet->y, E_SMALL_EXPLOSION);						playSound(SFX_HIT);						if (theCargo->collectType != P_PHOEBE)						{							theCargo->active = 0;							playSound(SFX_EXPLOSION);							for (int i = 0 ; i < 10 ; i++)								addExplosion(theCargo->x + Math::rrand(-15, 15), theCargo->y + Math::rrand(-15, 15), E_BIG_EXPLOSION);							updateMissionRequirements(M_PROTECT_PICKUP, P_CARGO, 1);						}					}				}			}		}		// check to see if a bullet (on any side) hits a mine		checkMineBulletCollisions(bullet);		bullet->shield--;		if (bullet->shield < 1)		{			if ((bullet->flags & WF_TIMEDEXPLOSION) || (bullet->id == WT_CHARGER))			{				playSound(SFX_EXPLOSION);				for (int i = 0 ; i < 10 ; i++)					addExplosion(bullet->x + Math::rrand(-35, 35), bullet->y + Math::rrand(-35, 35), E_BIG_EXPLOSION);				if (bullet->flags & WF_TIMEDEXPLOSION)					if (checkPlayerShockDamage(bullet->x, bullet->y, 75))						setInfoLine("Warning: Missile Shockwave Damage!!", FONT_RED);			}			bullet->active = 0;		}		if (bullet->active == 1)		{			prevBullet = bullet;			engine.bulletTail = bullet;		}		else		{			prevBullet->next = bullet->next;			delete bullet;			bullet = prevBullet;		}	}}