Beispiel #1
0
void
CheckForCollisions(void)
{
    //bounce off walls
    if (roundf(g_pongBall.x) > DISPLAY_WIDTH - 1)
    {
        g_pongBall.x = DISPLAY_WIDTH - 1;
        g_pongBall.xSpeed = -g_pongBall.xSpeed;
    }

    if (roundf(g_pongBall.x) < 0)
    {
        g_pongBall.x = 0;
        g_pongBall.xSpeed = -g_pongBall.xSpeed;
    }

    //bounce ball off paddles
    if (g_pongBall.y > 14 && g_pongBall.y < DISPLAY_HEIGHT - 1)
    {
        if (g_pongBall.x >= g_player.x &&
                g_pongBall.x <= g_player.x + PADDLE_WIDTH)
        {
            g_pongBall.ySpeed = -g_pongBall.ySpeed;
            g_pongBall.y = 14;
            AccelerateBall(&g_pongBall);
            NudgeBall(&g_pongBall, 1);
        }
    }
    else if (g_pongBall.y < 1 && g_pongBall.y > 0)
    {
        if (g_pongBall.x >= g_comp.x &&
                g_pongBall.x <= g_comp.x + PADDLE_WIDTH)
        {
            g_pongBall.ySpeed = -g_pongBall.ySpeed;
            g_pongBall.y = 1;
            AccelerateBall(&g_pongBall);
            NudgeBall(&g_pongBall, 0);
        }
    }

    /* below here we're checking for goals. */

    if (g_pongBall.y < 0) //score for player
    {
        PlayerScore(&g_player, 0);
    }
    else if (g_pongBall.y > DISPLAY_HEIGHT)
    {
        PlayerScore(&g_comp, 1);
    }

}
Beispiel #2
0
void GameDoLogic(bool* Continue, bool* Error, Uint32 Milliseconds)
{
	(void)Continue;
	(void)Error;
	if (Pause) return;

	cpSpaceStep(space.Space, Milliseconds * 0.001);
	CameraUpdate(&camera, PlayerMiddleY(), Milliseconds);

	bool hasPlayers = false;
	for (int i = 0; i < MAX_PLAYERS; i++)
	{
		Player *p = &players[i];
		if (!p->Enabled) continue;
		PlayerUpdate(p, Milliseconds);
		// Check if the player needs to be respawned
		if (p->RespawnCounter == 0 && !p->Alive && space.Gaps.size > 0)
		{
			SpaceRespawnPlayer(&space, p);
		}
		if (!p->Alive)
		{
			// Check if any players are past ones that await reenabling
			if (p->RespawnCounter == -1 && PlayerMinY() < p->y)
			{
				PlayerRevive(p);
			}
			else
			{
				continue;
			}
		}
		hasPlayers = true;

		// Check player pickups
		if (PickupsCollide(p->x, p->y, PLAYER_RADIUS))
		{
			PlayerScore(p, false);
		}

		// Players that hit the top of the screen die
		if (cpBodyGetPosition(p->Body).y + PLAYER_RADIUS >=
			camera.Y + FIELD_HEIGHT / 2)
		{
			PlayerKill(p);
		}
	}
	// If no players left alive, end the game
	if (!hasPlayers)
	{
		ToTitleScreen(false);
	}
	SpaceUpdate(&space, PlayerMinY(), camera.Y, PlayerMaxY(), &players[0]);

	ParticlesUpdate(Milliseconds);

	// Players that hit the top of the screen die
	if (PlayerMaxY() + PLAYER_RADIUS >= camera.Y + FIELD_HEIGHT / 2)
	{
		ToTitleScreen(false);
	}
}
Beispiel #3
0
static void HandleGameEvent(
	const GameEvent e,
	Camera *camera,
	PowerupSpawner *healthSpawner,
	CArray *ammoSpawners)
{
	switch (e.Type)
	{
	case GAME_EVENT_PLAYER_DATA:
		PlayerDataAddOrUpdate(e.u.PlayerData);
		break;
	case GAME_EVENT_TILE_SET:
		{
			Tile *t = MapGetTile(&gMap, Net2Vec2i(e.u.TileSet.Pos));
			t->flags = e.u.TileSet.Flags;
			t->pic = PicManagerGetNamedPic(
				&gPicManager, e.u.TileSet.PicName);
			t->picAlt = PicManagerGetNamedPic(
				&gPicManager, e.u.TileSet.PicAltName);
		}
		break;
	case GAME_EVENT_MAP_OBJECT_ADD:
		ObjAdd(e.u.MapObjectAdd);
		break;
	case GAME_EVENT_MAP_OBJECT_DAMAGE:
		DamageObject(e.u.MapObjectDamage);
		break;
	case GAME_EVENT_SCORE:
		{
			PlayerData *p = PlayerDataGetByUID(e.u.Score.PlayerUID);
			PlayerScore(p, e.u.Score.Score);
			HUDAddUpdate(
				&camera->HUD,
				NUMBER_UPDATE_SCORE, e.u.Score.PlayerUID, e.u.Score.Score);
		}
		break;
	case GAME_EVENT_SOUND_AT:
		if (!e.u.SoundAt.IsHit || ConfigGetBool(&gConfig, "Sound.Hits"))
		{
			SoundPlayAt(
				&gSoundDevice,
				StrSound(e.u.SoundAt.Sound), Net2Vec2i(e.u.SoundAt.Pos));
		}
		break;
	case GAME_EVENT_SCREEN_SHAKE:
		camera->shake = ScreenShakeAdd(
			camera->shake, e.u.ShakeAmount,
			ConfigGetInt(&gConfig, "Graphics.ShakeMultiplier"));
		break;
	case GAME_EVENT_SET_MESSAGE:
		HUDDisplayMessage(
			&camera->HUD, e.u.SetMessage.Message, e.u.SetMessage.Ticks);
		break;
	case GAME_EVENT_GAME_START:
		gMission.HasStarted = true;
		break;
	case GAME_EVENT_ACTOR_ADD:
		ActorAdd(e.u.ActorAdd);
		break;
	case GAME_EVENT_ACTOR_MOVE:
		ActorMove(e.u.ActorMove);
		break;
	case GAME_EVENT_ACTOR_STATE:
		{
			TActor *a = ActorGetByUID(e.u.ActorState.UID);
			if (!a->isInUse) break;
			ActorSetState(a, (ActorAnimation)e.u.ActorState.State);
		}
		break;
	case GAME_EVENT_ACTOR_DIR:
		{
			TActor *a = ActorGetByUID(e.u.ActorDir.UID);
			if (!a->isInUse) break;
			a->direction = (direction_e)e.u.ActorDir.Dir;
		}
		break;
	case GAME_EVENT_ACTOR_SLIDE:
		{
			TActor *a = ActorGetByUID(e.u.ActorSlide.UID);
			if (!a->isInUse) break;
			a->Vel = Net2Vec2i(e.u.ActorSlide.Vel);
			// Slide sound
			if (ConfigGetBool(&gConfig, "Sound.Footsteps"))
			{
				SoundPlayAt(
					&gSoundDevice,
					gSoundDevice.slideSound,
					Vec2iNew(a->tileItem.x, a->tileItem.y));
			}
		}
		break;
	case GAME_EVENT_ACTOR_IMPULSE:
		{
			TActor *a = ActorGetByUID(e.u.ActorImpulse.UID);
			if (!a->isInUse) break;
			a->Vel = Vec2iAdd(a->Vel, Net2Vec2i(e.u.ActorImpulse.Vel));
			const Vec2i pos = Net2Vec2i(e.u.ActorImpulse.Pos);
			if (!Vec2iIsZero(pos))
			{
				a->Pos = pos;
			}
		}
		break;
	case GAME_EVENT_ACTOR_SWITCH_GUN:
		ActorSwitchGun(e.u.ActorSwitchGun);
		break;
	case GAME_EVENT_ACTOR_PICKUP_ALL:
		{
			TActor *a = ActorGetByUID(e.u.ActorPickupAll.UID);
			if (!a->isInUse) break;
			a->PickupAll = e.u.ActorPickupAll.PickupAll;
		}
		break;
	case GAME_EVENT_ACTOR_REPLACE_GUN:
		ActorReplaceGun(e.u.ActorReplaceGun);
		break;
	case GAME_EVENT_ACTOR_HEAL:
		{
			TActor *a = ActorGetByUID(e.u.Heal.UID);
			if (!a->isInUse || a->dead) break;
			ActorHeal(a, e.u.Heal.Amount);
			// Sound of healing
			SoundPlayAt(
				&gSoundDevice,
				gSoundDevice.healthSound, Vec2iFull2Real(a->Pos));
			// Tell the spawner that we took a health so we can
			// spawn more (but only if we're the server)
			if (e.u.Heal.IsRandomSpawned && !gCampaign.IsClient)
			{
				PowerupSpawnerRemoveOne(healthSpawner);
			}
			if (e.u.Heal.PlayerUID >= 0)
			{
				HUDAddUpdate(
					&camera->HUD, NUMBER_UPDATE_HEALTH,
					e.u.Heal.PlayerUID, e.u.Heal.Amount);
			}
		}
		break;
	case GAME_EVENT_ACTOR_ADD_AMMO:
		{
			TActor *a = ActorGetByUID(e.u.AddAmmo.UID);
			if (!a->isInUse || a->dead) break;
			ActorAddAmmo(a, e.u.AddAmmo.AmmoId, e.u.AddAmmo.Amount);
			// Tell the spawner that we took ammo so we can
			// spawn more (but only if we're the server)
			if (e.u.AddAmmo.IsRandomSpawned && !gCampaign.IsClient)
			{
				PowerupSpawnerRemoveOne(
					CArrayGet(ammoSpawners, e.u.AddAmmo.AmmoId));
			}
			if (e.u.AddAmmo.PlayerUID >= 0)
			{
				HUDAddUpdate(
					&camera->HUD, NUMBER_UPDATE_AMMO,
					e.u.AddAmmo.PlayerUID, e.u.AddAmmo.Amount);
			}
		}
		break;
	case GAME_EVENT_ACTOR_USE_AMMO:
		{
			TActor *a = ActorGetByUID(e.u.UseAmmo.UID);
			if (!a->isInUse || a->dead) break;
			ActorAddAmmo(a, e.u.UseAmmo.AmmoId, -(int)e.u.UseAmmo.Amount);
			if (e.u.UseAmmo.PlayerUID >= 0)
			{
				HUDAddUpdate(
					&camera->HUD, NUMBER_UPDATE_AMMO,
					e.u.UseAmmo.PlayerUID, -(int)e.u.UseAmmo.Amount);
			}
		}
		break;
	case GAME_EVENT_ACTOR_DIE:
		{
			TActor *a = ActorGetByUID(e.u.ActorDie.UID);

			// Check if the player has lives to revive
			PlayerData *p = PlayerDataGetByUID(a->PlayerUID);
			if (p != NULL)
			{
				p->Lives--;
				CASSERT(p->Lives >= 0, "Player has died too many times");
				if (p->Lives > 0 && !gCampaign.IsClient)
				{
					// Find the closest player alive; try to spawn next to that position
					// if no other suitable position exists
					Vec2i defaultSpawnPosition = Vec2iZero();
					const TActor *closestActor = AIGetClosestPlayer(a->Pos);
					if (closestActor != NULL) defaultSpawnPosition = closestActor->Pos;
					PlacePlayer(&gMap, p, defaultSpawnPosition, false);
				}
			}

			ActorDestroy(a);
		}
		break;
	case GAME_EVENT_ACTOR_MELEE:
		{
			const TActor *a = ActorGetByUID(e.u.Melee.UID);
			if (!a->isInUse) break;
			const BulletClass *b = StrBulletClass(e.u.Melee.BulletClass);
			if ((HitType)e.u.Melee.HitType != HIT_NONE &&
				HasHitSound(b->Power, a->flags, a->PlayerUID,
				(TileItemKind)e.u.Melee.TargetKind, e.u.Melee.TargetUID,
				SPECIAL_NONE, false))
			{
				PlayHitSound(
					&b->HitSound, (HitType)e.u.Melee.HitType,
					Vec2iFull2Real(a->Pos));
			}
			if (!gCampaign.IsClient)
			{
				Damage(
					Vec2iZero(),
					b->Power,
					a->flags, a->PlayerUID, a->uid,
					(TileItemKind)e.u.Melee.TargetKind, e.u.Melee.TargetUID,
					SPECIAL_NONE);
			}
		}
		break;
	case GAME_EVENT_ADD_PICKUP:
		PickupAdd(e.u.AddPickup);
		// Play a spawn sound
		SoundPlayAt(
			&gSoundDevice,
			StrSound("spawn_item"), Net2Vec2i(e.u.AddPickup.Pos));
		break;
	case GAME_EVENT_REMOVE_PICKUP:
		PickupDestroy(e.u.RemovePickup.UID);
		if (e.u.RemovePickup.SpawnerUID >= 0)
		{
			TObject *o = ObjGetByUID(e.u.RemovePickup.SpawnerUID);
			o->counter = AMMO_SPAWNER_RESPAWN_TICKS;
		}
		break;
	case GAME_EVENT_BULLET_BOUNCE:
		{
			TMobileObject *o = MobObjGetByUID(e.u.BulletBounce.UID);
			if (o == NULL || !o->isInUse) break;
			const Vec2i pos = Net2Vec2i(e.u.BulletBounce.BouncePos);
			PlayHitSound(
				&o->bulletClass->HitSound, (HitType)e.u.BulletBounce.HitType,
				Vec2iFull2Real(pos));
			if (e.u.BulletBounce.Spark && o->bulletClass->Spark != NULL)
			{
				GameEvent s = GameEventNew(GAME_EVENT_ADD_PARTICLE);
				s.u.AddParticle.Class = o->bulletClass->Spark;
				s.u.AddParticle.FullPos = pos;
				s.u.AddParticle.Z = o->z;
				GameEventsEnqueue(&gGameEvents, s);
			}
			o->x = pos.x;
			o->y = pos.y;
			o->vel = Net2Vec2i(e.u.BulletBounce.BounceVel);
		}
		break;
	case GAME_EVENT_REMOVE_BULLET:
		{
			TMobileObject *o = MobObjGetByUID(e.u.RemoveBullet.UID);
			if (o == NULL || !o->isInUse) break;
			MobObjDestroy(o);
		}
		break;
	case GAME_EVENT_PARTICLE_REMOVE:
		ParticleDestroy(&gParticles, e.u.ParticleRemoveId);
		break;
	case GAME_EVENT_GUN_FIRE:
		{
			const GunDescription *g = StrGunDescription(e.u.GunFire.Gun);
			const Vec2i fullPos = Net2Vec2i(e.u.GunFire.MuzzleFullPos);

			// Add bullets
			if (g->Bullet && !gCampaign.IsClient)
			{
				// Find the starting angle of the spread (clockwise)
				// Keep in mind the fencepost problem, i.e. spread of 3 means a
				// total spread angle of 2x width
				const double spreadStartAngle =
					g->AngleOffset -
					(g->Spread.Count - 1) * g->Spread.Width / 2;
				for (int i = 0; i < g->Spread.Count; i++)
				{
					const double recoil =
						((double)rand() / RAND_MAX * g->Recoil) -
						g->Recoil / 2;
					const double finalAngle =
						e.u.GunFire.Angle + spreadStartAngle +
						i * g->Spread.Width + recoil;
					GameEvent ab = GameEventNew(GAME_EVENT_ADD_BULLET);
					ab.u.AddBullet.UID = MobObjsObjsGetNextUID();
					strcpy(ab.u.AddBullet.BulletClass, g->Bullet->Name);
					ab.u.AddBullet.MuzzlePos = Vec2i2Net(fullPos);
					ab.u.AddBullet.MuzzleHeight = e.u.GunFire.Z;
					ab.u.AddBullet.Angle = (float)finalAngle;
					ab.u.AddBullet.Elevation =
						RAND_INT(g->ElevationLow, g->ElevationHigh);
					ab.u.AddBullet.Flags = e.u.GunFire.Flags;
					ab.u.AddBullet.PlayerUID = e.u.GunFire.PlayerUID;
					ab.u.AddBullet.ActorUID = e.u.GunFire.UID;
					GameEventsEnqueue(&gGameEvents, ab);
				}
			}

			// Add muzzle flash
			if (GunHasMuzzle(g))
			{
				GameEvent ap = GameEventNew(GAME_EVENT_ADD_PARTICLE);
				ap.u.AddParticle.Class = g->MuzzleFlash;
				ap.u.AddParticle.FullPos = fullPos;
				ap.u.AddParticle.Z = e.u.GunFire.Z;
				ap.u.AddParticle.Angle = e.u.GunFire.Angle;
				GameEventsEnqueue(&gGameEvents, ap);
			}
			// Sound
			if (e.u.GunFire.Sound && g->Sound)
			{
				SoundPlayAt(&gSoundDevice, g->Sound, Vec2iFull2Real(fullPos));
			}
			// Screen shake
			if (g->ShakeAmount > 0)
			{
				GameEvent s = GameEventNew(GAME_EVENT_SCREEN_SHAKE);
				s.u.ShakeAmount = g->ShakeAmount;
				GameEventsEnqueue(&gGameEvents, s);
			}
			// Brass shells
			// If we have a reload lead, defer the creation of shells until then
			if (g->Brass && g->ReloadLead == 0)
			{
				const direction_e d = RadiansToDirection(e.u.GunFire.Angle);
				const Vec2i muzzleOffset = GunGetMuzzleOffset(g, d);
				GunAddBrass(g, d, Vec2iMinus(fullPos, muzzleOffset));
			}
		}
		break;
	case GAME_EVENT_GUN_RELOAD:
		{
			const GunDescription *g = StrGunDescription(e.u.GunReload.Gun);
			const Vec2i fullPos = Net2Vec2i(e.u.GunReload.FullPos);
			SoundPlayAtPlusDistance(
				&gSoundDevice,
				g->ReloadSound,
				Vec2iFull2Real(fullPos),
				RELOAD_DISTANCE_PLUS);
			// Brass shells
			if (g->Brass)
			{
				GunAddBrass(g, (direction_e)e.u.GunReload.Direction, fullPos);
			}
		}
		break;
	case GAME_EVENT_GUN_STATE:
		{
			const TActor *a = ActorGetByUID(e.u.GunState.ActorUID);
			if (!a->isInUse) break;
			WeaponSetState(ActorGetGun(a), (gunstate_e)e.u.GunState.State);
		}
		break;
	case GAME_EVENT_ADD_BULLET:
		BulletAdd(e.u.AddBullet);
		break;
	case GAME_EVENT_ADD_PARTICLE:
		ParticleAdd(&gParticles, e.u.AddParticle);
		break;
	case GAME_EVENT_ACTOR_HIT:
		{
			TActor *a = ActorGetByUID(e.u.ActorHit.UID);
			if (!a->isInUse) break;
			ActorTakeHit(a, e.u.ActorHit.Special);
			if (e.u.ActorHit.Power > 0)
			{
				DamageActor(
					a, e.u.ActorHit.Power, e.u.ActorHit.HitterPlayerUID);
				if (e.u.ActorHit.PlayerUID >= 0)
				{
					HUDAddUpdate(
						&camera->HUD, NUMBER_UPDATE_HEALTH,
						e.u.ActorHit.PlayerUID, -e.u.ActorHit.Power);
				}

				AddBloodSplatter(
					a->Pos, e.u.ActorHit.Power,
					Net2Vec2i(e.u.ActorHit.Vel));
			}
		}
		break;
	case GAME_EVENT_TRIGGER:
		{
			const Tile *t =
				MapGetTile(&gMap, Net2Vec2i(e.u.TriggerEvent.Tile));
			CA_FOREACH(Trigger *, tp, t->triggers)
				if ((*tp)->id == (int)e.u.TriggerEvent.ID)
				{
					TriggerActivate(*tp, &gMap.triggers);
					break;
				}
			CA_FOREACH_END()
		}
		break;
	case GAME_EVENT_EXPLORE_TILES:
		// Process runs of explored tiles
		for (int i = 0; i < (int)e.u.ExploreTiles.Runs_count; i++)
		{
			Vec2i tile = Net2Vec2i(e.u.ExploreTiles.Runs[i].Tile);
			for (int j = 0; j < e.u.ExploreTiles.Runs[i].Run; j++)
			{
				MapMarkAsVisited(&gMap, tile);
				tile.x++;
				if (tile.x == gMap.Size.x)
				{
					tile.x = 0;
					tile.y++;
				}
			}
		}
		break;
	case GAME_EVENT_RESCUE_CHARACTER:
		{
			TActor *a = ActorGetByUID(e.u.Rescue.UID);
			if (!a->isInUse) break;
			a->flags &= ~FLAGS_PRISONER;
			SoundPlayAt(
				&gSoundDevice, StrSound("rescue"), Vec2iFull2Real(a->Pos));
		}
		break;
	case GAME_EVENT_OBJECTIVE_UPDATE:
		{
			ObjectiveDef *o = CArrayGet(
				&gMission.Objectives, e.u.ObjectiveUpdate.ObjectiveId);
			o->done += e.u.ObjectiveUpdate.Count;
			// Display a text update effect for the objective
			HUDAddUpdate(
				&camera->HUD, NUMBER_UPDATE_OBJECTIVE,
				e.u.ObjectiveUpdate.ObjectiveId, e.u.ObjectiveUpdate.Count);
			MissionSetMessageIfComplete(&gMission);
		}
		break;
	case GAME_EVENT_ADD_KEYS:
		gMission.KeyFlags |= e.u.AddKeys.KeyFlags;
		SoundPlayAt(
			&gSoundDevice, gSoundDevice.keySound, Net2Vec2i(e.u.AddKeys.Pos));
		// Clear cache since we may now have new paths
		PathCacheClear(&gPathCache);
		break;
	case GAME_EVENT_MISSION_COMPLETE:
		if (e.u.MissionComplete.ShowMsg)
		{
			HUDDisplayMessage(&camera->HUD, "Mission complete", -1);
		}
		camera->HUD.showExit = true;
		MapShowExitArea(&gMap);
		break;
	case GAME_EVENT_MISSION_INCOMPLETE:
		gMission.state = MISSION_STATE_PLAY;
		break;
	case GAME_EVENT_MISSION_PICKUP:
		gMission.state = MISSION_STATE_PICKUP;
		gMission.pickupTime = gMission.time;
		SoundPlay(&gSoundDevice, StrSound("whistle"));
		break;
	case GAME_EVENT_MISSION_END:
		gMission.isDone = true;
		break;
	default:
		assert(0 && "unknown game event");
		break;
	}
}