Weapons.

src/combat/weapons.c

@@ -20,6 +20,232 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "weapons.h"
 
+static Entity *createBaseBullet(Entity *owner);
+
+static int bulletSprite[2];
+static int plasmaSprite[2];
+static int aimedSprite;
+static int spreadShotSprite;
+static int alienSpreadShotSprite;
+static int laserSprite[2];
+static int grenadeSprite;
+static int alienGrenadeSprite;
+static int shotgunPelletSprite;
+static int missileSprite[2];
+
+void initWeapons(void)
+{
+	bulletSprite[0] = getSpriteIndex("BulletRight");
+	bulletSprite[1] = getSpriteIndex("BulletLeft");
+
+	plasmaSprite[0] = getSpriteIndex("PlasmaRight");
+	plasmaSprite[1] = getSpriteIndex("PlasmaLeft");
+
+	aimedSprite = getSpriteIndex("AimedShot");
+
+	spreadShotSprite = getSpriteIndex("SpreadShot");
+	alienSpreadShotSprite = getSpriteIndex("AlienSpreadShot");
+
+	laserSprite[0] = getSpriteIndex("Laser");
+	laserSprite[1] = getSpriteIndex("AlienLaser");
+
+	grenadeSprite = getSpriteIndex("Grenade");
+	alienGrenadeSprite = getSpriteIndex("AlienGrenade");
+
+	shotgunPelletSprite = getSpriteIndex("ShotgunPellet");
+
+	missileSprite[0] = getSpriteIndex("MissileRight");
+	missileSprite[1] = getSpriteIndex("MissileLeft");
+}
+
+void firePistol(Entity *owner)
+{
+	Entity *bullet;
+	
+	bullet = createBaseBullet(owner);
+	bullet->weaponType = WPN_PISTOL;
+	bullet->facing = owner->facing;
+	bullet->sprite[0] = bulletSprite[0];
+	bullet->sprite[1] = bulletSprite[1];
+
+	owner->reload = 20;
+
+	playSound(SND_PISTOL, CH_PLAYER);
+}
+
+void fireAimedShot(Entity *owner)
+{
+	int x, y;
+	float dx, dy;
+	Entity *bullet;
+	
+	x = (int) (world.bob->x + rrnd(-8, 24));
+	y = (int) (world.bob->y + rrnd(-8, 24));
+
+	getSlope(x, y, owner->x, owner->y, &dx, &dy);
+
+	bullet = createBaseBullet(owner);
+	bullet->weaponType = WPN_AIMED_PISTOL;
+	bullet->dx = dx * 6;
+	bullet->dy = dy * 6;
+	bullet->sprite[0] = bullet->sprite[1] = aimedSprite;
+	bullet->health *= 2;
+
+	owner->reload = 15;
+
+	playSound(SND_PISTOL, CH_WEAPON);
+}
+
+void fireMachineGun(Entity *owner)
+{
+	Entity *bullet;
+	
+	bullet = createBaseBullet(owner);
+	bullet->weaponType = WPN_MACHINE_GUN;
+	bullet->sprite[0] = bulletSprite[0];
+	bullet->sprite[1] = bulletSprite[1];
+	owner->reload = 8;
+
+	playSound(SND_MACHINE_GUN, CH_WEAPON);
+}
+
+void firePlasma(Entity *owner)
+{
+	Entity *bullet;
+	
+	bullet = createBaseBullet(owner);
+	bullet->weaponType = WPN_PLASMA;
+	bullet->sprite[0] = plasmaSprite[0];
+	bullet->sprite[1] = plasmaSprite[1];
+	bullet->damage = 2;
+
+	owner->reload = owner->type == ET_BOB ? 4 : 8;
+
+	playSound(SND_PLASMA, owner->type == ET_BOB ? CH_PLAYER : CH_WEAPON);
+}
+
+void fireSpread(Entity *owner, int numberOfShots)
+{
+	Entity *bullet;
+	int i;
+	float dy;
+
+	dy = -(numberOfShots / 2) * 3;
+
+	for (i = 0 ; i < numberOfShots ; i++)
+	{
+		bullet = createBaseBullet(owner);
+		bullet->weaponType = WPN_SPREAD;
+		bullet->sprite[0] = bullet->sprite[1] = owner->type == ET_BOB ? spreadShotSprite : alienSpreadShotSprite;
+		bullet->dx = owner->facing == FACING_RIGHT ? 15 : -15;
+		bullet->dy = dy;
+
+		dy += 3;
+
+		owner->reload = 16;
+	}
+
+	playSound(SND_SPREAD, owner->type == ET_BOB ? CH_PLAYER : CH_WEAPON);
+}
+
+void fireLaser(Entity *owner)
+{
+	Entity *laser;
+	
+	laser = createBaseBullet(owner);
+	laser->x = owner->x + owner->w / 2;
+	laser->y = owner->y + owner->h / 2;
+	laser->facing = owner->facing;
+	laser->dx = owner->facing == FACING_RIGHT ? 20 : -20;
+	laser->owner = owner;
+	laser->health = FPS * 3;
+	laser->sprite[0] = laser->sprite[1] = (owner->type == ET_BOB) ? laserSprite[0] : laserSprite[1];
+
+	owner->reload = owner->type == ET_BOB ? FPS / 2 : FPS;
+
+	playSound(SND_LASER, owner->type == ET_BOB ? CH_PLAYER : CH_WEAPON);
+}
+
+void fireGrenade(Entity *owner)
+{
+	Entity *grenade;
+	
+	grenade = createBaseBullet(owner);
+	grenade->x = owner->x + owner->w / 2;
+	grenade->y = owner->y;
+	grenade->facing = owner->facing;
+	grenade->owner = owner;
+	grenade->health = FPS * 3;
+	grenade->dx = owner->facing == FACING_RIGHT ? 8 : -8;
+	grenade->sprite[0] = grenade->sprite[1] = (owner->type == ET_BOB) ? grenadeSprite : alienGrenadeSprite;
+
+	grenade->dy = -6;
+
+	owner->reload = FPS / 2;
+
+	playSound(SND_THROW, owner->type == ET_BOB ? CH_PLAYER : CH_WEAPON);
+}
+
+void fireShotgun(Entity *owner)
+{
+	int i;
+	float dx, dy;
+	Entity *bullet;
+	
+	for (i = 0 ; i < 8 ; i++)
+	{
+		getSlope(world.bob->x + rrnd(0, 40), world.bob->y + rrnd(0, 40), owner->x, owner->y, &dx, &dy);
+
+		bullet = createBaseBullet(owner);
+		bullet->weaponType = WPN_SHOTGUN;
+		bullet->x = owner->x + (owner->w / 2) + rrnd(-8, 8);
+		bullet->y = owner->y + (owner->h / 2) + rrnd(-8, 8);
+		bullet->dx = dx * 12;
+		bullet->dy = dy * 12;
+		bullet->damage = 2;
+		bullet->sprite[0] = bullet->sprite[1] = shotgunPelletSprite;
+
+		owner->reload = 15;
+	}
+
+	playSound(SND_SHOTGUN, CH_WEAPON);
+}
+
+void fireMissile(Entity *owner)
+{
+	Entity *missile;
+	
+	missile = createBaseBullet(owner);
+	missile->x = owner->x + owner->w / 2;
+	missile->y = owner->y + 10;
+	missile->facing = owner->facing;
+	missile->dx = owner->facing == FACING_RIGHT ? 10 : -10;
+	missile->owner = owner;
+	missile->health = FPS * 3;
+	missile->sprite[0] = missileSprite[0];
+	missile->sprite[1] = missileSprite[1];
+
+	owner->reload = FPS / 2;
+
+	playSound(SND_MISSILE, CH_WEAPON);
+}
+
+static Entity *createBaseBullet(Entity *owner)
+{
+	Entity *bullet;
+	
+	bullet = createEntity();
+	bullet->x = (owner->x + owner->w / 2);
+	bullet->y = (owner->y + owner->h / 2) - 3;
+	bullet->dx = owner->facing == FACING_RIGHT ? 15 : -15;
+	bullet->facing = owner->facing;
+	bullet->damage = 1;
+	bullet->owner = owner;
+	bullet->health = FPS * 3;
+
+	return bullet;
+}
+
 int getRandomPlayerWeapon(int excludeGrenades)
 {
 	if (excludeGrenades)

src/combat/weapons.h

@@ -19,3 +19,11 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../common.h"
+
+extern Entity *createEntity(void);
+extern int getSpriteIndex(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);
+
+extern World world;

src/defs.h

@@ -150,12 +150,21 @@ enum
 
 enum
 {
-	SND_EXPLOSION
+	SND_EXPLOSION,
+	SND_PISTOL,
+	SND_MACHINE_GUN,
+	SND_PLASMA,
+	SND_SPREAD,
+	SND_LASER,
+	SND_THROW,
+	SND_SHOTGUN,
+	SND_MISSILE
 };
 
 enum
 {
 	CH_PLAYER,
 	CH_EXPLODE,
+	CH_WEAPON,
 	CH_MAX
 };

src/structs.h

@@ -89,6 +89,8 @@ struct Entity {
 	int reload;
 	int isOnGround;
 	int facing;
+	int damage;
+	int weaponType;
 	int shotsToFire;
 	int isSolid;
 	int value;
@@ -97,6 +99,7 @@ struct Entity {
 	int sprite[3];
 	int spriteTime;
 	int spriteFrame;
+	Entity *owner;
 	void (*walk)(void);
 	void (*attack)(void);
 	void (*touch)(Entity *other);

src/world/entities.c

@@ -20,6 +20,18 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 #include "entities.h"
 
+Entity *createEntity(void)
+{
+	Entity *e;
+	
+	e = malloc(sizeof(Entity));
+	memset(e, 0, sizeof(Entity));
+	world.entityTail->next = e;
+	world.entityTail = e;
+	
+	return e;
+}
+
 void activateEntities(char *names, int activate)
 {
 }

src/world/entities.h

@@ -19,3 +19,5 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
 #include "../common.h"
+
+extern World world;