Use sprite pointers, rather than ints.

common.mk

@@ -44,7 +44,7 @@ OBJS += main.o map.o maths.o mia.o missile.o
 OBJS += objectives.o
 OBJS += particles.o player.o powerPoint.o powerPool.o pressurePlate.o pushBlock.o
 OBJS += quadtree.o
-OBJS += sound.o sprites.o
+OBJS += sound.o sprites.o structures.o
 OBJS += tankCommander.o tankTrack.o teeka.o teleporter.o text.o textures.o title.o triggers.o
 OBJS += unit.o util.o
 OBJS += weapons.o weaponPickup.o widgets.o world.o worldLoader.o

src/combat/weapons.c

@@ -22,43 +22,43 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 Bullet *createBaseBullet(Unit *owner);
 
-static int bulletSprite[2];
+static Sprite *bulletSprite[2];
-static int plasmaSprite[2];
+static Sprite *plasmaSprite[2];
-static int aimedSprite;
+static Sprite *aimedSprite;
-static int spreadShotSprite;
+static Sprite *spreadShotSprite;
-static int alienSpreadShotSprite;
+static Sprite *alienSpreadShotSprite;
-static int laserSprite[2];
+static Sprite *laserSprite[2];
-static int grenadeSprite;
+static Sprite *grenadeSprite;
-static int alienGrenadeSprite;
+static Sprite *alienGrenadeSprite;
-static int shotgunPelletSprite;
+static Sprite *shotgunPelletSprite;
-static int missileSprite[2];
+static Sprite *missileSprite[2];
 
 static void tick(void);
 static void touch(Entity *other);
 
 void initWeapons(void)
 {
-	bulletSprite[0] = getSpriteIndex("BulletRight");
+	bulletSprite[0] = getSprite("BulletRight");
-	bulletSprite[1] = getSpriteIndex("BulletLeft");
+	bulletSprite[1] = getSprite("BulletLeft");
 
-	plasmaSprite[0] = getSpriteIndex("PlasmaRight");
+	plasmaSprite[0] = getSprite("PlasmaRight");
-	plasmaSprite[1] = getSpriteIndex("PlasmaLeft");
+	plasmaSprite[1] = getSprite("PlasmaLeft");
 
-	aimedSprite = getSpriteIndex("AimedShot");
+	aimedSprite = getSprite("AimedShot");
 
-	spreadShotSprite = getSpriteIndex("SpreadShot");
+	spreadShotSprite = getSprite("SpreadShot");
-	alienSpreadShotSprite = getSpriteIndex("AlienSpreadShot");
+	alienSpreadShotSprite = getSprite("AlienSpreadShot");
 
-	laserSprite[0] = getSpriteIndex("Laser");
+	laserSprite[0] = getSprite("Laser");
-	laserSprite[1] = getSpriteIndex("AlienLaser");
+	laserSprite[1] = getSprite("AlienLaser");
 
-	grenadeSprite = getSpriteIndex("Grenade");
+	grenadeSprite = getSprite("Grenade");
-	alienGrenadeSprite = getSpriteIndex("AlienGrenade");
+	alienGrenadeSprite = getSprite("AlienGrenade");
 
-	shotgunPelletSprite = getSpriteIndex("ShotgunPellet");
+	shotgunPelletSprite = getSprite("ShotgunPellet");
 
-	missileSprite[0] = getSpriteIndex("MissileRight");
+	missileSprite[0] = getSprite("MissileRight");
-	missileSprite[1] = getSpriteIndex("MissileLeft");
+	missileSprite[1] = getSprite("MissileLeft");
 }
 
 void firePistol(Unit *owner)

src/combat/weapons.h

@@ -20,7 +20,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "../common.h"
 
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void playSound(int snd, int ch);
 extern int rrnd(int low, int high);
 extern void getSlope(int x1, int y1, int x2, int y2, float *dx, float *dy);

src/entities/blobs/mia.c

@@ -37,9 +37,9 @@ void initMIA(void)
 	
 	m->tx = m->ty = -1;
 
-	m->sprite[FACING_LEFT] = getSpriteIndex("MIA");
+	m->sprite[FACING_LEFT] = getSprite("MIA");
-	m->sprite[FACING_RIGHT] = getSpriteIndex("MIA");
+	m->sprite[FACING_RIGHT] = getSprite("MIA");
-	m->sprite[FACING_DIE] = getSpriteIndex("MIA");
+	m->sprite[FACING_DIE] = getSprite("MIA");
 
 	m->flags |= EF_IGNORE_BULLETS;
 

src/entities/blobs/mia.h

@@ -20,7 +20,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "../../common.h"
 
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void nothing(void);
 extern void addMIATeleportStars(float x, float y);
 extern void addTeleportStars(Entity *e);

src/entities/blobs/teeka.c

@@ -26,7 +26,7 @@ static void preFire(void);
 static void attack(void);
 
 static Entity *target;
-static int aimedSprite;
+static Sprite *aimedSprite;
 static int exitMission;
 
 void initTeeka(void)
@@ -43,15 +43,15 @@ void initTeeka(void)
 
 	u->weaponType = WPN_AIMED_PISTOL;
 
-	u->sprite[FACING_LEFT] = getSpriteIndex("TeekaLeft");
+	u->sprite[FACING_LEFT] = getSprite("TeekaLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("TeekaRight");
+	u->sprite[FACING_RIGHT] = getSprite("TeekaRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("TeekaLeft");
+	u->sprite[FACING_DIE] = getSprite("TeekaLeft");
 
 	u->health = u->healthMax = 9999;
 	
 	u->tick = tick;
 	
-	aimedSprite = getSpriteIndex("AimedShot");
+	aimedSprite = getSprite("AimedShot");
 }
 
 static void tick(void)

src/entities/blobs/teeka.h

@@ -22,7 +22,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 extern Unit *createUnit(void);
 extern void unitTick(void);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern int rrnd(int low, int high);
 extern Bullet *createBaseBullet(Unit *owner);
 extern void getSlope(int x1, int y1, int x2, int y2, float *dx, float *dy);

src/entities/boss/blaze.c

@@ -32,7 +32,7 @@ void initBlaze(Entity *e)
 	
 	STRNCPY(b->name, "Blaze", MAX_NAME_LENGTH);
 
-	b->sprite[FACING_LEFT] = getSpriteIndex("BlazeLeft");
+	b->sprite[FACING_LEFT] = getSprite("BlazeLeft");
-	b->sprite[FACING_RIGHT] = getSpriteIndex("BlazeRight");
+	b->sprite[FACING_RIGHT] = getSprite("BlazeRight");
-	b->sprite[FACING_DIE] = getSpriteIndex("BlazeSpin");
+	b->sprite[FACING_DIE] = getSprite("BlazeSpin");
 }

src/entities/boss/blaze.h

@@ -21,4 +21,4 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../../common.h"
 
 extern void initBlobBoss(Boss *b);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);

src/entities/boss/blobBoss.c

@@ -24,7 +24,7 @@ static void activate(int activate);
 static void walk(void);
 static void tick(void);
 static void changeEnvironment(void);
-static int getCurrentSprite(void);
+static Sprite *getCurrentSprite(void);
 static void animate(void);
 static void applyDamage(int amount);
 static void moveTowardsPlayer(void);
@@ -34,7 +34,7 @@ static void attack(void);
 static void die1(void);
 static void die2(void);
 
-static int aimedSprite;
+static Sprite *aimedSprite;
 
 void initBlobBoss(Entity *e)
 {
@@ -59,7 +59,7 @@ void initBlobBoss(Entity *e)
 	b->applyDamage = applyDamage;
 	b->die = die1;
 	
-	aimedSprite = getSpriteIndex("AimedShot");
+	aimedSprite = getSprite("AimedShot");
 }
 
 static void activate(int activate)
@@ -171,7 +171,7 @@ static void die1(void)
 	b->action = die2;
 }
 
-static int getCurrentSprite(void)
+static Sprite *getCurrentSprite(void)
 {
 	Boss *b;
 	

src/entities/boss/blobBoss.h

@@ -30,7 +30,7 @@ extern double randF(void);
 extern void playSound(int snd, int ch);
 extern void animateEntity(Entity *e);
 extern Bullet *createBaseBullet(Unit *owner);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern int getDistance(int x1, int y1, int x2, int y2);
 extern void getSlope(int x1, int y1, int x2, int y2, float *dx, float *dy);
 extern int enemyCanSeePlayer(Entity *e);

src/entities/boss/boss.c

@@ -30,7 +30,7 @@ void initBoss(Entity *e)
 	
 	b->type = ET_BOSS;
 	
-	b->sprite[FACING_LEFT] = b->sprite[FACING_RIGHT] = b->sprite[FACING_DIE] = getSpriteIndex("Boss");
+	b->sprite[FACING_LEFT] = b->sprite[FACING_RIGHT] = b->sprite[FACING_DIE] = getSprite("Boss");
 	
 	b->isMissionTarget = 1;
 

src/entities/boss/boss.h

@@ -22,6 +22,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 extern void initEntity(Entity *e);
 extern void lookForPlayer(void);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 
 extern World world;

src/entities/boss/eyeDroidCommander.c

@@ -33,12 +33,12 @@ static void attackMissile(void);
 static void preFire(void);
 static void attack(void);
 static void applyDamage(int amount);
-static int getCurrentSprite(void);
+static Sprite *getCurrentSprite(void);
 
 static int brakingTimer;
-static int aimedSprite;
+static Sprite *aimedSprite;
-static int missileSprite[2];
+static Sprite *missileSprite[2];
-static int plasmaSprite[2];
+static Sprite *plasmaSprite[2];
 
 void initEyeDroidCommander(Entity *e)
 {
@@ -50,9 +50,9 @@ void initEyeDroidCommander(Entity *e)
 	
 	STRNCPY(b->name, "EyeDroid Commander", MAX_NAME_LENGTH);
 
-	b->sprite[FACING_LEFT] = getSpriteIndex("DroidCommanderLeft");
+	b->sprite[FACING_LEFT] = getSprite("DroidCommanderLeft");
-	b->sprite[FACING_RIGHT] = getSpriteIndex("DroidCommanderRight");
+	b->sprite[FACING_RIGHT] = getSprite("DroidCommanderRight");
-	b->sprite[FACING_DIE] = getSpriteIndex("DroidCommanderDie");
+	b->sprite[FACING_DIE] = getSprite("DroidCommanderDie");
 	
 	b->flags |= EF_WEIGHTLESS | EF_EXPLODES;
 
@@ -66,13 +66,13 @@ void initEyeDroidCommander(Entity *e)
 
 	brakingTimer = 0;
 	
-	aimedSprite = getSpriteIndex("AimedShot");
+	aimedSprite = getSprite("AimedShot");
 	
-	missileSprite[0] = getSpriteIndex("MissileRight");
+	missileSprite[0] = getSprite("MissileRight");
-	missileSprite[1] = getSpriteIndex("MissileLeft");
+	missileSprite[1] = getSprite("MissileLeft");
 	
-	plasmaSprite[0] = getSpriteIndex("PlasmaRight");
+	plasmaSprite[0] = getSprite("PlasmaRight");
-	plasmaSprite[1] = getSpriteIndex("PlasmaLeft");
+	plasmaSprite[1] = getSprite("PlasmaLeft");
 }
 
 static void activate(int activate)
@@ -382,7 +382,7 @@ static void die2()
 	}
 }
 
-static int getCurrentSprite(void)
+static Sprite *getCurrentSprite(void)
 {
 	if (self->health <= 0)
 	{

src/entities/boss/eyeDroidCommander.h

@@ -21,7 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../../common.h"
 
 extern void initBoss(Entity *e);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void playMusic(char *filename, int loop);
 extern void addTeleportStars(Entity *e);
 extern float limit(float i, float a, float b);

src/entities/boss/frost.c

@@ -32,7 +32,7 @@ void initFrost(Entity *e)
 	
 	STRNCPY(b->name, "Frost", MAX_NAME_LENGTH);
 
-	b->sprite[FACING_LEFT] = getSpriteIndex("FrostLeft");
+	b->sprite[FACING_LEFT] = getSprite("FrostLeft");
-	b->sprite[FACING_RIGHT] = getSpriteIndex("FrostRight");
+	b->sprite[FACING_RIGHT] = getSprite("FrostRight");
-	b->sprite[FACING_DIE] = getSpriteIndex("FrostSpin");
+	b->sprite[FACING_DIE] = getSprite("FrostSpin");
 }

src/entities/boss/frost.h

@@ -21,4 +21,4 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../../common.h"
 
 extern void initBlobBoss(Entity *e);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);

src/entities/boss/tankCommander.c

@@ -36,8 +36,8 @@ static void moveTowardsPlayer(void);
 
 static Entity *tankTrack;
 static int brakingTimer;
-static int missileSprite[2];
+static Sprite *missileSprite[2];
-static int aimedSprite;
+static Sprite *aimedSprite;
 
 void initTankCommander(Entity *e)
 {
@@ -49,9 +49,9 @@ void initTankCommander(Entity *e)
 
 	STRNCPY(e->name, "Tank Commander", MAX_NAME_LENGTH);
 
-	b->sprite[FACING_LEFT] = getSpriteIndex("TankCommanderLeft");
+	b->sprite[FACING_LEFT] = getSprite("TankCommanderLeft");
-	b->sprite[FACING_RIGHT] = getSpriteIndex("TankCommanderRight");
+	b->sprite[FACING_RIGHT] = getSprite("TankCommanderRight");
-	b->sprite[FACING_DIE] = getSpriteIndex("TankCommanderDie");
+	b->sprite[FACING_DIE] = getSprite("TankCommanderDie");
 
 	b->flags |= EF_EXPLODES;
 
@@ -68,10 +68,10 @@ void initTankCommander(Entity *e)
 
 	world.boss = b;
 	
-	aimedSprite = getSpriteIndex("AimedShot");
+	aimedSprite = getSprite("AimedShot");
 
-	missileSprite[0] = getSpriteIndex("MissileRight");
+	missileSprite[0] = getSprite("MissileRight");
-	missileSprite[1] = getSpriteIndex("MissileLeft");
+	missileSprite[1] = getSprite("MissileLeft");
 
 	initTankTrack(tankTrack);
 }

src/entities/boss/tankCommander.h

@@ -21,7 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../../common.h"
 
 extern void initBoss(Entity *e);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void playMusic(char *filename, int loop);
 extern void addTeleportStars(Entity *e);
 extern float limit(float i, float a, float b);

src/entities/boss/tankTrack.c

@@ -37,9 +37,9 @@ void initTankTrack(Entity *e, Entity *tank)
 
 	e->isMissionTarget = 0;
 
-	e->sprite[FACING_LEFT] = getSpriteIndex("TankTrackLeft");
+	e->sprite[FACING_LEFT] = getSprite("TankTrackLeft");
-	e->sprite[FACING_RIGHT] = getSpriteIndex("TankTrackRight");
+	e->sprite[FACING_RIGHT] = getSprite("TankTrackRight");
-	e->sprite[FACING_DIE] = getSpriteIndex("TankTrackLeft");
+	e->sprite[FACING_DIE] = getSprite("TankTrackLeft");
 
 	e->tick = tick;
 	e->touch = touch;

src/entities/boss/tankTrack.h

@@ -21,7 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../../common.h"
 
 extern void initBoss(Entity *e);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern int rrnd(int low, int high);
 extern void playSound(int snd, int ch);
 

src/entities/cannons/cannon.c

@@ -36,9 +36,9 @@ void initCannon(void)
 	
 	u->type = ET_ENEMY;
 
-	u->sprite[FACING_LEFT] = getSpriteIndex("CannonLeft");
+	u->sprite[FACING_LEFT] = getSprite("CannonLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("CannonRight");
+	u->sprite[FACING_RIGHT] = getSprite("CannonRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("CannonLeft");
+	u->sprite[FACING_DIE] = getSprite("CannonLeft");
 
 	u->weaponType = WPN_MISSILE;
 

src/entities/cannons/cannon.h

@@ -22,7 +22,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 extern void addExplosion(float x, float y, int radius, Entity *owner);
 extern int rrnd(int low, int high);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern int getDistance(int x1, int y1, int x2, int y2);
 extern int enemyCanSeePlayer(Entity *e);
 extern void updateObjective(char *targetName);

src/entities/entities.c

@@ -29,8 +29,6 @@ void initEntity(Entity *e)
 {
 	e->uniqueId = world.entityCounter++;
 	
-	e->sprite[0] = e->sprite[1] = e->sprite[2] = -1;
-	
 	e->environment = ENV_AIR;
 	e->alive = ALIVE_ALIVE;
 
@@ -66,16 +64,6 @@ static SDL_Rect *getBounds(void)
 	return &self->bounds;
 }
 
-int getCurrentEntitySprite(EntityExt *e)
-{
-	if (e->alive == ALIVE_ALIVE)
-	{
-		return e->sprite[e->facing];
-	}
-
-	return e->sprite[FACING_DIE];
-}
-
 void animateEntity(void)
 {
 }

src/entities/entityFactory.c

@@ -33,6 +33,8 @@ void initEntityFactory(void)
 	addEntityDef("AquaBlob", ET_ENEMY, initAquaBlob);
 	
 	addEntityDef("Bob", ET_BOB, initBob);
+	
+	addEntityDef("Exit", ET_EXIT, initExit);
 }
 
 Entity *createEntity(char *name)

src/entities/entityFactory.h

@@ -22,3 +22,4 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 extern Entity *initAquaBlob(void);
 extern Entity *initBob(void);
+extern Entity *initExit(void);

src/entities/evilBlobs/aquaBlob.c

@@ -22,7 +22,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 static int canFire(Entity *target);
 
-void initAquaBlob(void)
+Entity *initAquaBlob(void)
 {
 	Unit *u;
 	
@@ -30,9 +30,9 @@ void initAquaBlob(void)
 	
 	initEvilBlob(u);
 
-	u->sprite[FACING_LEFT] = getSpriteIndex("AquaBlobLeft");
+	u->sprite[FACING_LEFT] = getSprite("AquaBlobLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("AquaBlobRight");
+	u->sprite[FACING_RIGHT] = getSprite("AquaBlobRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("AquaBlobSpin");
+	u->sprite[FACING_DIE] = getSprite("AquaBlobSpin");
 
 	u->weaponType = WPN_AIMED_PISTOL;
 
@@ -41,6 +41,8 @@ void initAquaBlob(void)
 	u->maxShotsToFire = 3;
 
 	u->canFire = canFire;
+	
+	return (Entity*)u;
 }
 
 static int canFire(Entity *target)

src/entities/evilBlobs/aquaBlob.h

@@ -22,4 +22,4 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 extern Unit *createUnit(void);
 extern void initEvilBlob(Unit *u);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);

src/entities/evilBlobs/evilBlob.h

@@ -23,8 +23,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 extern void dropCarriedItem(void);
 extern int getDistance(int x1, int y1, int x2, int y2);
 extern double randF(void);
-extern void throwFleshChunks(double x, double y, int amount);
+extern void throwFleshChunks(float x, float y, int amount);
-extern void addRandomWeapon(double x, double y);
+extern void addRandomWeapon(float x, float y);
 extern float limit(float i, float a, float b);
 extern void playSound(int snd, int ch);
 extern void addBloodDecal(int x, int y);

src/entities/evilBlobs/grenadeBlob.c

@@ -27,9 +27,9 @@ void initGrenadeBlob(Unit *u)
 {
 	initEvilBlob(u);
 	
-	u->sprite[FACING_LEFT] = getSpriteIndex("GrenadeBlobLeft");
+	u->sprite[FACING_LEFT] = getSprite("GrenadeBlobLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("GrenadeBlobRight");
+	u->sprite[FACING_RIGHT] = getSprite("GrenadeBlobRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("GrenadeBlobSpin");
+	u->sprite[FACING_DIE] = getSprite("GrenadeBlobSpin");
 
 	u->weaponType = WPN_GRENADES;
 

src/entities/evilBlobs/laserBlob.c

@@ -26,9 +26,9 @@ void initLaserBlob(Unit *u)
 {
 	initEvilBlob(u);
 	
-	u->sprite[FACING_LEFT] = getSpriteIndex("LaserBlobLeft");
+	u->sprite[FACING_LEFT] = getSprite("LaserBlobLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("LaserBlobRight");
+	u->sprite[FACING_RIGHT] = getSprite("LaserBlobRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("LaserBlobSpin");
+	u->sprite[FACING_DIE] = getSprite("LaserBlobSpin");
 
 	u->weaponType = WPN_LASER;
 

src/entities/evilBlobs/machineGunBlob.c

@@ -26,9 +26,9 @@ void initMachineGunBlob(Unit *u)
 {
 	initEvilBlob(u);
 	
-	u->sprite[FACING_LEFT] = getSpriteIndex("MachineGunBlobLeft");
+	u->sprite[FACING_LEFT] = getSprite("MachineGunBlobLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("MachineGunBlobRight");
+	u->sprite[FACING_RIGHT] = getSprite("MachineGunBlobRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("MachineGunBlobSpin");
+	u->sprite[FACING_DIE] = getSprite("MachineGunBlobSpin");
 
 	u->weaponType = WPN_MACHINE_GUN;
 

src/entities/evilBlobs/pistolBlob.c

@@ -26,9 +26,9 @@ void initPistolBlob(Unit *u)
 {
 	initEvilBlob(u);
 	
-	u->sprite[FACING_LEFT] = getSpriteIndex("PistolBlobLeft");
+	u->sprite[FACING_LEFT] = getSprite("PistolBlobLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("PistolBlobRight");
+	u->sprite[FACING_RIGHT] = getSprite("PistolBlobRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("PistolBlobSpin");
+	u->sprite[FACING_DIE] = getSprite("PistolBlobSpin");
 
 	u->weaponType = WPN_AIMED_PISTOL;
 

src/entities/evilBlobs/plasmaBlob.c

@@ -26,9 +26,9 @@ void initPlasmaBlob(Unit *u)
 {
 	initEvilBlob(u);
 	
-	u->sprite[FACING_LEFT] = getSpriteIndex("PlasmaBlobLeft");
+	u->sprite[FACING_LEFT] = getSprite("PlasmaBlobLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("PlasmaBlobRight");
+	u->sprite[FACING_RIGHT] = getSprite("PlasmaBlobRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("PlasmaBlobSpin");
+	u->sprite[FACING_DIE] = getSprite("PlasmaBlobSpin");
 
 	u->weaponType = WPN_PLASMA;
 

src/entities/evilBlobs/shotgunBlob.c

@@ -26,9 +26,9 @@ void initShotgunBlob(Unit *u)
 {
 	initEvilBlob(u);
 	
-	u->sprite[FACING_LEFT] = getSpriteIndex("ShotgunBlobLeft");
+	u->sprite[FACING_LEFT] = getSprite("ShotgunBlobLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("ShotgunBlobRight");
+	u->sprite[FACING_RIGHT] = getSprite("ShotgunBlobRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("ShotgunBlobSpin");
+	u->sprite[FACING_DIE] = getSprite("ShotgunBlobSpin");
 
 	u->weaponType = WPN_SHOTGUN;
 

src/entities/evilBlobs/spreadGunBlob.c

@@ -26,9 +26,9 @@ void initSpreadGunBlob(Unit *u)
 {
 	initEvilBlob(u);
 	
-	u->sprite[FACING_LEFT] = getSpriteIndex("SpreadGunBlobLeft");
+	u->sprite[FACING_LEFT] = getSprite("SpreadGunBlobLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("SpreadGunBlobRight");
+	u->sprite[FACING_RIGHT] = getSprite("SpreadGunBlobRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("SpreadGunBlobSpin");
+	u->sprite[FACING_DIE] = getSprite("SpreadGunBlobSpin");
 
 	u->weaponType = WPN_SPREAD;
 

src/entities/eyeDroids/grenadeDroid.c

@@ -27,9 +27,9 @@ void initGrenadeDroid(Unit *u)
 {
 	initEyeDroid(u);
 	
-	u->sprite[FACING_LEFT] = getSpriteIndex("GrenadeDroidLeft");
+	u->sprite[FACING_LEFT] = getSprite("GrenadeDroidLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("GrenadeDroidRight");
+	u->sprite[FACING_RIGHT] = getSprite("GrenadeDroidRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("GrenadeDroidDie");
+	u->sprite[FACING_DIE] = getSprite("GrenadeDroidDie");
 
 	u->weaponType = WPN_GRENADES;
 

src/entities/eyeDroids/laserDroid.c

@@ -26,9 +26,9 @@ void initLaserDroid(Unit *u)
 {
 	initEyeDroid(u);
 
-	u->sprite[FACING_LEFT] = getSpriteIndex("LaserDroidLeft");
+	u->sprite[FACING_LEFT] = getSprite("LaserDroidLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("LaserDroidRight");
+	u->sprite[FACING_RIGHT] = getSprite("LaserDroidRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("LaserDroidDie");
+	u->sprite[FACING_DIE] = getSprite("LaserDroidDie");
 
 	u->weaponType = WPN_LASER;
 

src/entities/eyeDroids/machineGunDroid.c

@@ -26,9 +26,9 @@ void initMachineGunDroid(Unit *u)
 {
 	initEyeDroid(u);
 
-	u->sprite[FACING_LEFT] = getSpriteIndex("MachineGunDroidLeft");
+	u->sprite[FACING_LEFT] = getSprite("MachineGunDroidLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("MachineGunDroidRight");
+	u->sprite[FACING_RIGHT] = getSprite("MachineGunDroidRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("MachineGunDroidDie");
+	u->sprite[FACING_DIE] = getSprite("MachineGunDroidDie");
 
 	u->weaponType = WPN_MACHINE_GUN;
 

src/entities/eyeDroids/pistolDroid.c

@@ -24,9 +24,9 @@ static int canFire(Entity *target);
 
 void initPistolDroid(Unit *u)
 {
-	u->sprite[FACING_LEFT] = getSpriteIndex("PistolDroidLeft");
+	u->sprite[FACING_LEFT] = getSprite("PistolDroidLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("PistolDroidRight");
+	u->sprite[FACING_RIGHT] = getSprite("PistolDroidRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("PistolDroidDie");
+	u->sprite[FACING_DIE] = getSprite("PistolDroidDie");
 
 	u->weaponType = WPN_AIMED_PISTOL;
 

src/entities/eyeDroids/plasmaDroid.c

@@ -26,9 +26,9 @@ void initPlasmaDroid(Unit *u)
 {
 	initEyeDroid(u);
 
-	u->sprite[FACING_LEFT] = getSpriteIndex("PlasmaDroidLeft");
+	u->sprite[FACING_LEFT] = getSprite("PlasmaDroidLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("PlasmaDroidRight");
+	u->sprite[FACING_RIGHT] = getSprite("PlasmaDroidRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("PlasmaDroidDie");
+	u->sprite[FACING_DIE] = getSprite("PlasmaDroidDie");
 
 	u->weaponType = WPN_PLASMA;
 

src/entities/eyeDroids/shotgunDroid.c

@@ -26,9 +26,9 @@ void initShotgunDroid(Unit *u)
 {
 	initEyeDroid(u);
 
-	u->sprite[FACING_LEFT] = getSpriteIndex("ShotgunDroidLeft");
+	u->sprite[FACING_LEFT] = getSprite("ShotgunDroidLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("ShotgunDroidRight");
+	u->sprite[FACING_RIGHT] = getSprite("ShotgunDroidRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("ShotgunDroidDie");
+	u->sprite[FACING_DIE] = getSprite("ShotgunDroidDie");
 
 	u->weaponType = WPN_SHOTGUN;
 

src/entities/eyeDroids/spreadGunDroid.c

@@ -26,9 +26,9 @@ void initSpreadGunDroid(Unit *u)
 {
 	initEyeDroid(u);
 
-	u->sprite[FACING_LEFT] = getSpriteIndex("SpreadGunDroidLeft");
+	u->sprite[FACING_LEFT] = getSprite("SpreadGunDroidLeft");
-	u->sprite[FACING_RIGHT] = getSpriteIndex("SpreadGunDroidRight");
+	u->sprite[FACING_RIGHT] = getSprite("SpreadGunDroidRight");
-	u->sprite[FACING_DIE] = getSpriteIndex("SpreadGunDroidDie");
+	u->sprite[FACING_DIE] = getSprite("SpreadGunDroidDie");
 
 	u->weaponType = WPN_SPREAD;
 

src/entities/items/cell.c

@@ -36,7 +36,7 @@ void initCell(Entity *e)
 
 	STRNCPY(i->spriteName, "Battery", MAX_NAME_LENGTH);
 
-	i->sprite[0] = i->sprite[1] = i->sprite[2] = getSpriteIndex("Battery");
+	i->sprite[0] = i->sprite[1] = i->sprite[2] = getSprite("Battery");
 
 	i->spriteFrame = 0;
 	i->spriteTime = -1;

src/entities/items/cell.h

@@ -21,7 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../../common.h"
 
 extern void initItem(Entity *e);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void setGameplayMessage(int type, char *format, ...);
 extern void playSound(int snd, int ch);
 extern void updateObjective(char *targetName);

src/entities/items/heart.c

@@ -37,7 +37,7 @@ void initHeart(Entity *e)
 
 	STRNCPY(i->spriteName, "Heart", MAX_NAME_LENGTH);
 
-	i->sprite[0] = i->sprite[1] = i->sprite[2] = getSpriteIndex("Heart");
+	i->sprite[0] = i->sprite[1] = i->sprite[2] = getSprite("Heart");
 
 	i->spriteFrame = 0;
 	i->spriteTime = -1;

src/entities/items/heart.h

@@ -23,7 +23,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 extern void playSound(int snd, int ch);
 extern void setGameplayMessage(int type, char *format, ...);
 extern void initItem(Entity *e);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void updateObjective(char *targetName);
 extern int rrnd(int low, int high);
 

src/entities/items/item.c

@@ -48,7 +48,7 @@ void initItem(Entity *e)
 	i->canBeCarried = 0;
 	i->collected = 0;
 
-	i->sprite[FACING_LEFT] = i->sprite[FACING_RIGHT] = i->sprite[FACING_DIE] = getSpriteIndex(i->spriteName);
+	i->sprite[FACING_LEFT] = i->sprite[FACING_RIGHT] = i->sprite[FACING_DIE] = getSprite(i->spriteName);
 
 	i->tick = tick;
 	i->touch = touch;

src/entities/items/item.h

@@ -24,7 +24,7 @@ extern void playSound(int snd, int ch);
 extern void setGameplayMessage(int type, char *format, ...);
 extern void addTeleportStars(Entity *e);
 extern void initEntity(Entity *e);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void addBobItem(Item *i);
 extern int numCarriedItems(void);
 extern void addKey(char *name);

src/entities/items/weaponPickup.c

@@ -42,7 +42,7 @@ void initWeaponPickup(Entity *e)
 
 	i->weaponType = WPN_PISTOL;
 
-	i->sprite[0] = i->sprite[1] = i->sprite[2] = getSpriteIndex("Weapon");
+	i->sprite[0] = i->sprite[1] = i->sprite[2] = getSprite("Weapon");
 	i->spriteFrame = i->weaponType;
 	i->spriteTime = -1;
 	

src/entities/items/weaponPickup.h

@@ -23,7 +23,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 extern void playSound(int snd, int ch);
 extern void setGameplayMessage(int type, char *format, ...);
 extern void initConsumable(Entity *e);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void pickupItem(void);
 extern void setEntitySize(Entity *e);
 extern int touchedPlayer(Entity *e);

src/entities/misc/destructable.c

@@ -41,7 +41,7 @@ void initDestructable(Entity *e)
 
 	s->health = s->healthMax = 10;
 	
-	s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSpriteIndex(s->spriteName);
+	s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSprite(s->spriteName);
 	
 	s->applyDamage = applyDamage;
 	s->action = action;

src/entities/misc/destructable.h

@@ -25,7 +25,7 @@ extern void dropCarriedItem(void);
 extern int rrnd(int low, int high);
 extern void addExplosion(float x, float y, int radius, Entity *owner);
 extern void addScorchDecal(int x, int y);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void updateObjective(char *targetName);
 extern void initEntity(Entity *e);
 

src/entities/misc/infoPoint.c

@@ -33,7 +33,7 @@ void initInfoPoint(Entity *e)
 	
 	s->type = ET_INFO_POINT;
 	
-	s->sprite[0] = s->sprite[1] = s->sprite[2] = getSpriteIndex("InfoPoint");
+	s->sprite[0] = s->sprite[1] = s->sprite[2] = getSprite("InfoPoint");
 
 	s->flags |= EF_WEIGHTLESS | EF_IGNORE_BULLETS | EF_NO_CLIP | EF_NO_ENVIRONMENT;
 	

src/entities/misc/infoPoint.h

@@ -20,7 +20,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "../../common.h"
 
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void initEntity(Entity *e);
 extern void showInfoMessage(char *message);
 

src/entities/structures/cardReader.c

@@ -41,11 +41,11 @@ void initCardReader(Entity *e)
 	
 	if (!s->active)
 	{
-		s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSpriteIndex("CardReaderIdle");
+		s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSprite("CardReaderIdle");
 	}
 	else
 	{
-		s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSpriteIndex("CardReader");
+		s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSprite("CardReader");
 	}
 	
 	s->tick = tick;
@@ -81,7 +81,7 @@ static void touch(Entity *other)
 			removeItem(s->requiredItem);
 
 			s->active = 1;
-			s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSpriteIndex("CardReader");
+			s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSprite("CardReader");
 			s->spriteTime = 0;
 			s->spriteFrame = 0;
 

src/entities/structures/cardReader.h

@@ -21,7 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../../common.h"
 
 extern void initEntity(Entity *e);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void removeItem(char *name);
 extern int hasItem(char *name);
 extern void setGameplayMessage(int type, char *format, ...);

src/entities/structures/door.c

@@ -49,7 +49,7 @@ void initDoor(Entity *e)
 
 	s->isLocked = 1;
 
-	s->sprite[0] = s->sprite[1] = s->sprite[2] = getSpriteIndex("Door");
+	s->sprite[0] = s->sprite[1] = s->sprite[2] = getSprite("Door");
 	
 	if (s->closedX == -1 && s->closedY == -1)
 	{
@@ -73,7 +73,7 @@ void initBronzeDoor(Entity *e)
 
 	s->speed = 2;
 
-	s->sprite[0] = s->sprite[1] = s->sprite[2] = getSpriteIndex("BronzeDoor");
+	s->sprite[0] = s->sprite[1] = s->sprite[2] = getSprite("BronzeDoor");
 }
 
 void initSilverDoor(Entity *e)
@@ -88,7 +88,7 @@ void initSilverDoor(Entity *e)
 
 	s->speed = 2;
 
-	s->sprite[0] = s->sprite[1] = s->sprite[2] = getSpriteIndex("SilverDoor");
+	s->sprite[0] = s->sprite[1] = s->sprite[2] = getSprite("SilverDoor");
 }
 
 void initGoldDoor(Entity *e)
@@ -103,7 +103,7 @@ void initGoldDoor(Entity *e)
 
 	s->speed = 2;
 
-	s->sprite[0] = s->sprite[1] = e->sprite[2] = getSpriteIndex("GoldDoor");
+	s->sprite[0] = s->sprite[1] = e->sprite[2] = getSprite("GoldDoor");
 }
 
 static void tick(void)

src/entities/structures/door.h

@@ -1,4 +1,4 @@
- /*
+/*
 Copyright (C) 2018 Parallel Realities
 
 This program is free software; you can redistribute it and/or
@@ -21,7 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../../common.h"
 
 extern void initEntity(Entity *e);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void playSound(int snd, int ch);
 extern void getSlope(int x1, int y1, int x2, int y2, float *dx, float *dy);
 extern void setGameplayMessage(int type, char *format, ...);

src/entities/structures/exit.c

@@ -1,4 +1,4 @@
- /*
+/*
 Copyright (C) 2018 Parallel Realities
 
 This program is free software; you can redistribute it and/or
@@ -25,17 +25,15 @@ static void action(void);
 static void touch(Entity *other);
 static SDL_Rect *getBounds(void);
 
-void initExit(Entity *e)
+void initExit(void)
 {
 	Structure *s;
 	
-	initEntity(e);
+	s = createStructure();
-	
-	s = (Structure*)e;
 	
 	s->type = ET_EXIT;
 	
-	s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSpriteIndex("Exit");
+	s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSprite("Exit");
 
 	s->flags |= EF_WEIGHTLESS | EF_NO_CLIP | EF_NO_ENVIRONMENT | EF_IGNORE_BULLETS;
 

src/entities/structures/exit.h

@@ -20,11 +20,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "../../common.h"
 
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void updateObjective(char *targetName);
 extern void setGameplayMessage(int type, char *format, ...);
 extern void stopMusic(void);
-extern void initEntity(Entity *e);
+extern Structure *createStructure(void);
 
 extern Entity *self;
 extern World world;

src/entities/structures/horizontalDoor.c

@@ -26,7 +26,7 @@ void initHorizontalDoor(Entity *e)
 	
 	e->type = ET_DOOR;
 	
-	e->sprite[0] = e->sprite[1] = e->sprite[2] = getSpriteIndex("HorizonalDoor");
+	e->sprite[0] = e->sprite[1] = e->sprite[2] = getSprite("HorizonalDoor");
 }
 
 void initBronzeHorizontalDoor(Entity *e)

src/entities/structures/horizontalDoor.h

@@ -21,4 +21,4 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../../common.h"
 
 extern void initDoor(Entity *e);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);

src/entities/structures/itemPad.c

@@ -37,11 +37,11 @@ void initItemPad(Entity *e)
 	
 	if (!e->active)
 	{
-		e->sprite[FACING_LEFT] = e->sprite[FACING_RIGHT] = e->sprite[FACING_DIE] = getSpriteIndex("ItemPadActive");
+		e->sprite[FACING_LEFT] = e->sprite[FACING_RIGHT] = e->sprite[FACING_DIE] = getSprite("ItemPadActive");
 	}
 	else
 	{
-		e->sprite[FACING_LEFT] = e->sprite[FACING_RIGHT] = e->sprite[FACING_DIE] = getSpriteIndex("ItemPadInactive");
+		e->sprite[FACING_LEFT] = e->sprite[FACING_RIGHT] = e->sprite[FACING_DIE] = getSprite("ItemPadInactive");
 	}
 	
 	e->tick = tick;
@@ -83,7 +83,7 @@ static void touch(Entity *other)
 
 			setGameplayMessage(MSG_GAMEPLAY, _("%s removed"), s->requiredItem);
 
-			s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSpriteIndex("ItemPadActive");
+			s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSprite("ItemPadActive");
 
 			s->spriteFrame = 0;
 

src/entities/structures/itemPad.h

@@ -21,7 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../../common.h"
 
 extern void initEntity(Entity *e);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void updateObjective(char *targetName);
 extern void setGameplayMessage(int type, char *format, ...);
 extern void removeItem(char *name);

src/entities/structures/lift.c

@@ -43,7 +43,7 @@ void initLift(Entity *e)
 
 	s->startX = s->startY = -1;
 
-	s->sprite[0] = s->sprite[1] = s->sprite[2] = getSpriteIndex("Lift");
+	s->sprite[0] = s->sprite[1] = s->sprite[2] = getSprite("Lift");
 
 	s->active = 1;
 	

src/entities/structures/lift.h

@@ -21,7 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../../common.h"
 
 extern void initEntity(Entity *e);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void getSlope(int x1, int y1, int x2, int y2, float *dx, float *dy);
 extern void observeActivation(Entity *e);
 extern int isOnScreen(Entity *e);

src/entities/structures/powerPoint.c

@@ -34,7 +34,7 @@ void initPowerPoint(Entity *e)
 	
 	s->type = ET_POWER_POINT;
 
-	s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSpriteIndex("PowerPoint");
+	s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSprite("PowerPoint");
 
 	s->flags |= EF_WEIGHTLESS | EF_NO_CLIP | EF_NO_ENVIRONMENT | EF_IGNORE_BULLETS;
 

src/entities/structures/powerPoint.h

@@ -21,7 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../../common.h"
 
 extern void initEntity(Entity *e);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void activateEntities(char *names, int activate);
 extern void setGameplayMessage(int type, char *format, ...);
 

src/entities/structures/powerPool.c

@@ -34,7 +34,7 @@ void initPowerPool(Entity *e)
 	
 	s->type = ET_POOL;
 	
-	s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSpriteIndex("PowerPool");
+	s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSprite("PowerPool");
 
 	s->flags |= EF_WEIGHTLESS | EF_NO_CLIP | EF_IGNORE_BULLETS;
 

src/entities/structures/powerPool.h

@@ -20,7 +20,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "../../common.h"
 
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void initEntity(Entity *e);
 
 extern Entity *self;

src/entities/structures/pressurePlate.c

@@ -33,7 +33,7 @@ void initPressurePlate(Entity *e)
 	
 	s->type = ET_PRESSURE_PLATE;
 	
-	s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSpriteIndex("PressurePlate");
+	s->sprite[FACING_LEFT] = s->sprite[FACING_RIGHT] = s->sprite[FACING_DIE] = getSprite("PressurePlate");
 
 	s->flags |= EF_WEIGHTLESS | EF_NO_CLIP | EF_NO_ENVIRONMENT | EF_IGNORE_BULLETS;
 

src/entities/structures/pressurePlate.h

@@ -21,7 +21,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../../common.h"
 
 extern void initEntity(Entity *e);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void activateEntities(char *names, int activate);
 extern void playSound(int snd, int ch);
 

src/entities/structures/structures.c

@@ -0,0 +1,33 @@
+/*
+Copyright (C) 2018 Parallel Realities
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#include "structures.h"
+
+Structure *createStructure(void)
+{
+	Structure *s;
+	
+	s = malloc(sizeof(Structure));
+	memset(s, 0, sizeof(Structure));
+	world.entityTail->next = (Entity*)s;
+	world.entityTail = (Entity*)s;
+	
+	return s;
+}

src/entities/structures/structures.h

@@ -0,0 +1,25 @@
+/*
+Copyright (C) 2018 Parallel Realities
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+See the GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+
+#include "../../common.h"
+
+extern Structure *createStructure(void);
+
+extern World world;

src/entities/traps/horizontalLaserTrap.c

@@ -26,5 +26,5 @@ void initHorizontalLaserTrap(Entity *e)
 	
 	e->type = ET_TRAP;
 	
-	e->sprite[0] = e->sprite[1] = e->sprite[2] = getSpriteIndex("HorizontalLaserTrap");
+	e->sprite[0] = e->sprite[1] = e->sprite[2] = getSprite("HorizontalLaserTrap");
 }

src/entities/traps/horizontalLaserTrap.h

@@ -21,4 +21,4 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../../common.h"
 
 extern void initLaserTrap(Entity *e);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);

src/entities/traps/laserTrap.c

@@ -41,7 +41,7 @@ void initLaserTrap(Entity *e)
 	t->onTime = FPS * 2;
 	t->offTime = FPS * 2;
 
-	t->sprite[0] = t->sprite[1] = t->sprite[2] = getSpriteIndex("LaserTrap");
+	t->sprite[0] = t->sprite[1] = t->sprite[2] = getSprite("LaserTrap");
 
 	t->active = 1;
 	

src/entities/traps/laserTrap.h

@@ -24,7 +24,7 @@ extern void initEntity(Entity *e);
 extern void observeActivation(Entity *e);
 extern int isOnScreen(Entity *e);
 extern void setGameplayMessage(int type, char *format, ...);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern int rrnd(int low, int high);
 extern void stunBob(void);
 extern void addSparkParticles(float x, float y);

src/structs.h

@@ -122,7 +122,7 @@ struct Entity {
 	int environment;
 	int thinkTime;
 	int facing;
-	int sprite[3];
+	Sprite *sprite[3];
 	int plane;
 	int isSolid;
 	int isStatic;
@@ -144,7 +144,7 @@ struct Entity {
 	void (*activate)(int active);
 	void (*applyDamage)(int amount);
 	void (*changeEnvironment)(void);
-	int (*getCurrentSprite)(void);
+	Sprite *(*getCurrentSprite)(void);
 	int (*preSave)(void);
 	SDL_Rect *(*getBounds)(void);
 	Entity *next;
@@ -355,7 +355,7 @@ typedef struct {
 } Game;
 
 struct Marker {
-	int sprite;
+	Sprite *sprite;
 	float value;
 	float y;
 	Marker *next;
@@ -402,8 +402,8 @@ struct Particle {
 	float r;
 	float g;
 	float b;
-	int spriteIndex;
+	Sprite *spriteIndex;
-	double spriteTime;
+	float spriteTime;
 	int spriteFrame;
 	int destroyAfterAnim;
 	int onScreen;

src/system/sprites.c

@@ -25,7 +25,6 @@ static void loadGameSprites(void);
 static void loadSpriteList(char *filename);
 void loadSprite(cJSON *root);
 
-static Tuple spriteMapHead;
 static Sprite spriteHead;
 static Sprite *spriteTail;
 
@@ -37,42 +36,6 @@ void initSprites(void)
 	loadGameSprites();
 }
 
-int getSpriteIndex(char *key)
-{
-	Tuple *t;
-	
-	for (t = spriteMapHead.next ; t != NULL ; t = t->next)
-	{
-		if (strcmp(t->key, key) == 0)
-		{
-			return t->value.i;
-		}
-	}
-	
-	SDL_LogMessage(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_ERROR, "No such sprite '%s'", key);
-	exit(1);
-
-	return -1;
-}
-
-Sprite *getSpriteByIndex(int x)
-{
-	Sprite *s;
-	int i;
-	
-	for (s = spriteHead.next ; s != NULL ; s = s->next)
-	{
-		if (i == x)
-		{
-			return s;
-		}
-		
-		i++;
-	}
-	
-	return NULL;
-}
-
 Sprite *getSprite(char *name)
 {
 	Sprite *s;
@@ -101,14 +64,6 @@ void animateSprites(void)
 	}
 }
 
-void addSpriteFrame(Sprite *s, SDL_Rect frame, int time)
-{
-	s->frames[s->numFrames] = frame;
-	s->times[s->numFrames] = time;
-	
-	s->numFrames++;
-}
-
 static void animateSprite(Sprite *s)
 {
 	if (s->currentTime != -1)
@@ -210,8 +165,3 @@ void loadSprite(cJSON *root)
 void destroySprites(void)
 {
 }
-
-void addSpriteFrames(Sprite *sprite, cJSON *root)
-{
-	
-}

src/world/effects.c

@@ -20,25 +20,25 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "effects.h"
 
-static int fleshChunk[3];
+static Sprite *fleshChunk[3];
-static int debris[3];
+static Sprite *debris[3];
 
 void initEffects(void)
 {
-	fleshChunk[0] = getSpriteIndex("FleshChunk1");
+	fleshChunk[0] = getSprite("FleshChunk1");
-	fleshChunk[1] = getSpriteIndex("FleshChunk2");
+	fleshChunk[1] = getSprite("FleshChunk2");
-	fleshChunk[2] = getSpriteIndex("FleshChunk3");
+	fleshChunk[2] = getSprite("FleshChunk3");
 
-	debris[0] = getSpriteIndex("Debris1");
+	debris[0] = getSprite("Debris1");
-	debris[1] = getSpriteIndex("Debris2");
+	debris[1] = getSprite("Debris2");
-	debris[2] = getSpriteIndex("Debris3");
+	debris[2] = getSprite("Debris3");
 }
 
 void addExplosionEffect(int x, int y, float dx, float dy)
 {
 }
 
-void addSmallFleshChunk(double x, double y)
+void addSmallFleshChunk(float x, float y)
 {
 	Decoration *chunk;
 	
@@ -55,7 +55,7 @@ void addSmallFleshChunk(double x, double y)
 	chunk->sprite[0] = chunk->sprite[1] = chunk->sprite[2] = fleshChunk[0];
 }
 
-void throwFleshChunks(double x, double y, int amount)
+void throwFleshChunks(float x, float y, int amount)
 {
 	int i;
 	Decoration *chunk;

src/world/effects.h

@@ -21,6 +21,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "../common.h"
 
 extern int rrnd(int low, int high);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 
 extern World world;

src/world/items.c

@@ -23,21 +23,21 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 static void throwItem(Item *i);
 static int getRandomPlayerWeaponAt(int x, int y);
 
-static int wpnIconSprite;
+static Sprite *wpnIconSprite;
-static int cherrySprite[3];
+static Sprite *cherrySprite[3];
-static int batterySprite;
+static Sprite *batterySprite;
 
 void initItems(void)
 {
-	wpnIconSprite = getSpriteIndex("Weapon");
+	wpnIconSprite = getSprite("Weapon");
-	batterySprite = getSpriteIndex("Battery");
+	batterySprite = getSprite("Battery");
 
-	cherrySprite[0] = getSpriteIndex("Cherry");
+	cherrySprite[0] = getSprite("Cherry");
-	cherrySprite[1] = getSpriteIndex("DualCherry");
+	cherrySprite[1] = getSprite("DualCherry");
-	cherrySprite[2] = getSpriteIndex("CherryBunch");
+	cherrySprite[2] = getSprite("CherryBunch");
 }
 
-void addRandomWeapon(double x, double y)
+void addRandomWeapon(float x, float y)
 {
 	Item *wpn;
 	int type;
@@ -87,10 +87,10 @@ static int getRandomPlayerWeaponAt(int x, int y)
 	return type;
 }
 
-void dropRandomCherry(double x, double y)
+void dropRandomCherry(float x, float y)
 {
 	Item *i;
-	double r;
+	int r;
 
 	i = malloc(sizeof(Item));
 	memset(i, 0, sizeof(Item));
@@ -124,10 +124,10 @@ void dropRandomCherry(double x, double y)
 	throwItem(i);
 }
 
-void dropBattery(double x, double y)
+void dropBattery(float x, float y)
 {
 	Item *i;
-	double r;
+	int r;
 
 	i = malloc(sizeof(Item));
 	memset(i, 0, sizeof(Item));

src/world/items.h

@@ -22,7 +22,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 extern int rrnd(int low, int high);
 extern int getRandomPlayerWeapon(int excludeGrenades);
-extern int getSpriteIndex(char *name);
+extern Sprite *getSprite(char *name);
 extern void addRandomItems(float x, float y);
 
 extern World world;

src/world/particles.c

@@ -23,25 +23,25 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 static void animate(Particle *p);
 static Particle *createParticle(void);
 
-static int bloodSprite[3];
+static Sprite *bloodSprite[3];
-static int explosionSprite[2];
+static Sprite *explosionSprite[2];
-static int flameSprite;
+static Sprite *flameSprite;
-static int smokeSprite;
+static Sprite *smokeSprite;
-static int teleportStarSprite;
+static Sprite *teleportStarSprite;
 
 void initParticles(void)
 {
-	bloodSprite[0] = getSpriteIndex("Blood1");
+	bloodSprite[0] = getSprite("Blood1");
-	bloodSprite[1] = getSpriteIndex("Blood2");
+	bloodSprite[1] = getSprite("Blood2");
-	bloodSprite[2] = getSpriteIndex("Blood3");
+	bloodSprite[2] = getSprite("Blood3");
 
-	explosionSprite[0] = getSpriteIndex("Explosion1");
+	explosionSprite[0] = getSprite("Explosion1");
-	explosionSprite[1] = getSpriteIndex("Explosion2");
+	explosionSprite[1] = getSprite("Explosion2");
 
-	flameSprite = getSpriteIndex("Flame");
+	flameSprite = getSprite("Flame");
-	smokeSprite = getSpriteIndex("Smoke");
+	smokeSprite = getSprite("Smoke");
 
-	teleportStarSprite = getSpriteIndex("TeleportStar");
+	teleportStarSprite = getSprite("TeleportStar");
 }
 
 void addBlood(float x, float y)
@@ -239,19 +239,7 @@ void doParticles(void)
 
 static void animate(Particle *p)
 {
-	Sprite *s;
 	
-	if (p->spriteTime != -1)
-	{
-		p->spriteTime--;
-
-		if (p->spriteTime <= 0)
-		{
-			s = getSprite(p->spriteIndex);
-			p->spriteFrame = (int) wrap(++p->spriteFrame, 0, s->numFrames);
-			p->spriteTime = s->times[p->spriteFrame];
-		}
-	}
 }
 
 static Particle *createParticle(void)

src/world/particles.h

@@ -20,8 +20,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "../common.h"
 
-extern Sprite *getSprite(int i);
+extern Sprite *getSprite(char *name);
-extern int getSpriteIndex(char *name);
 extern float wrap(float value, float low, float high);
 extern int rrnd(int low, int high);
 extern double randF(void);