Clean up collisions a lot

Plugins/Mineplex.Core.Common/src/mineplex/core/common/util/UtilBlock.java

@@ -1771,4 +1771,22 @@ public class UtilBlock
 		return false;
 	}
 
+	public static boolean isSlab(Block block)
+	{
+		return isSlab(block.getType());
+	}
+
+	public static boolean isSlab(Material type)
+	{
+		switch (type)
+		{
+			case STEP:
+			case WOOD_STEP:
+			case STONE_SLAB2:
+				return true;
+		}
+
+		return false;
+	}
+
 }

Plugins/Mineplex.Game.Nano/src/mineplex/game/nano/game/games/minekart/Kart.java

@@ -18,7 +18,7 @@ public class Kart
 
 	private int _lap, _lapCheckpoint, _lapKeyCheckpoint;
 
-	private Vector _velocity;
+	private Vector _velocity, _offset;
 	private float _frontWaysInput, _sidewaysInput;
 	private float _yaw;
 	private DriftDirection _driftDirection;
@@ -28,6 +28,8 @@ public class Kart
 	private boolean _crashed;
 	private long _crashedAt;
 
+	private boolean _resetting;
+
 	private long _boostAt;
 
 	private long _completedAt;
@@ -50,6 +52,7 @@ public class Kart
 		_lap = 1;
 
 		_velocity = new Vector();
+		_offset = new Vector();
 		_yaw = location.getYaw();
 	}
 
@@ -114,6 +117,11 @@ public class Kart
 		return _velocity;
 	}
 
+	public Vector getOffset()
+	{
+		return _offset;
+	}
+
 	public void setInput(float frontWaysInput, float sidewaysInput)
 	{
 		_frontWaysInput = frontWaysInput;
@@ -204,6 +212,16 @@ public class Kart
 		return _crashedAt;
 	}
 
+	public void setResetting(boolean resetting)
+	{
+		_resetting = resetting;
+	}
+
+	public boolean isResetting()
+	{
+		return _resetting;
+	}
+
 	public void complete()
 	{
 		_completedAt = System.currentTimeMillis();

Plugins/Mineplex.Game.Nano/src/mineplex/game/nano/game/games/minekart/KartController.java

@@ -7,9 +7,11 @@ import org.bukkit.block.BlockFace;
 import org.bukkit.util.Vector;
 
 import mineplex.core.common.util.UtilAlg;
+import mineplex.core.common.util.UtilBlock;
 import mineplex.core.common.util.UtilParticle;
 import mineplex.core.common.util.UtilParticle.ParticleType;
 import mineplex.core.common.util.UtilParticle.ViewDist;
+import mineplex.core.world.MineplexWorld;
 
 public class KartController
 {
@@ -41,50 +43,76 @@ public class KartController
 		}
 
 		Location location = kart.getVehicle().getLocation();
-		Block next = location.getBlock();
+		Block block = location.getBlock();
+		Block down = block.getRelative(BlockFace.DOWN);
 		Vector velocity = kart.getVelocity();
+		boolean collision = block.getType() != Material.AIR;
 
-		if (next.getRelative(BlockFace.DOWN).getType() == Material.GOLD_BLOCK)
+		if (down.getType() == Material.GOLD_BLOCK)
 		{
 			velocity.multiply(1.1);
 			kart.setBoost();
 		}
+		else if (down.getType() == Material.SAND)
+		{
+			if (velocity.length() > 0.2)
+			{
+				velocity.multiply(0.95);
+			}
+		}
+		else if (block.getType() == Material.SOUL_SAND)
+		{
+			if (velocity.length() > 0.3)
+			{
+				velocity.multiply(0.95);
+			}
 
-		if (next.getType() != Material.AIR)
+			collision = false;
+		}
+
+		if (collision)
 		{
 			double length = velocity.length();
 
-			if (next.getRelative(BlockFace.UP).getType() != Material.AIR)
+			if (block.getRelative(BlockFace.UP).getType() != Material.AIR)
 			{
 				if (length > 0.4)
 				{
 					velocity.multiply(-0.6);
+					velocity.setY(0.4);
 				}
 				else
 				{
-					velocity.normalize().multiply(-0.4);
+					velocity = UtilAlg.getTrajectory(kart.getYaw(), 0).multiply(-0.4);
+					velocity.setY(0.4);
+
+					kart.setVelocity(velocity);
 				}
 
-				velocity.setY(0.4);
 				kart.setCrashed(true);
 			}
-			else if (next.getType() == Material.SOUL_SAND)
-			{
-				if (velocity.length() > 0.3)
-				{
-					velocity.multiply(0.95);
-				}
-			}
 			else
 			{
+				Vector offset = kart.getOffset();
 				double blockY = location.getY() % 1;
-				double y = 0.42 - (blockY / 3);
 
-				velocity.add(new Vector(0, y, 0));
+				if (UtilBlock.isSlab(block) && blockY < 0.5)
+				{
+					offset.add(new Vector(0, 0.51, 0));
+				}
+				else
+				{
+					offset.add(new Vector(0, 1.01 - blockY, 0));
+				}
 			}
 		}
 	}
 
+	static boolean collideOutOfBounds(Kart kart, MineplexWorld world)
+	{
+		return !UtilAlg.inBoundingBox(kart.getVehicle().getLocation(), world.getMin(), world.getMax());
+	}
+
 	static void accelerate(Kart kart)
 	{
 		if (kart.isCrashed() || kart.getFrontWaysInput() <= 0)

Plugins/Mineplex.Game.Nano/src/mineplex/game/nano/game/games/minekart/MineKart.java

@@ -5,26 +5,44 @@ import java.util.Comparator;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.concurrent.TimeUnit;
 import java.util.stream.Collectors;
 
 import net.minecraft.server.v1_8_R3.PacketPlayInSteerVehicle;
 
+import org.bukkit.Color;
+import org.bukkit.FireworkEffect;
+import org.bukkit.FireworkEffect.Type;
 import org.bukkit.Location;
+import org.bukkit.Material;
 import org.bukkit.Sound;
 import org.bukkit.entity.LivingEntity;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
+import org.bukkit.event.block.Action;
+import org.bukkit.event.player.AsyncPlayerChatEvent;
+import org.bukkit.event.player.PlayerInteractEvent;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.scheduler.BukkitRunnable;
+import org.bukkit.util.Vector;
 
 import mineplex.core.common.util.C;
 import mineplex.core.common.util.F;
 import mineplex.core.common.util.UtilAlg;
 import mineplex.core.common.util.UtilEnt;
+import mineplex.core.common.util.UtilFirework;
 import mineplex.core.common.util.UtilMath;
+import mineplex.core.common.util.UtilParticle;
+import mineplex.core.common.util.UtilParticle.ParticleType;
+import mineplex.core.common.util.UtilParticle.ViewDist;
 import mineplex.core.common.util.UtilPlayer;
+import mineplex.core.common.util.UtilShapes;
 import mineplex.core.common.util.UtilTextMiddle;
 import mineplex.core.common.util.UtilTime;
+import mineplex.core.itemstack.ItemBuilder;
 import mineplex.core.packethandler.IPacketHandler;
 import mineplex.core.packethandler.PacketInfo;
+import mineplex.core.recharge.Recharge;
 import mineplex.core.updater.UpdateType;
 import mineplex.core.updater.event.UpdateEvent;
 import mineplex.game.nano.NanoManager;
@@ -40,6 +58,7 @@ public class MineKart extends SoloGame implements IPacketHandler
 {
 
 	private static final int LAPS = 3;
+	private static final long RESET_KART_COOLDOWN = TimeUnit.SECONDS.toMillis(10);
 
 	private int _spawnIndex;
 
@@ -79,6 +98,11 @@ public class MineKart extends SoloGame implements IPacketHandler
 		return Integer.compare(o2.getLapCheckpoint(), o1.getLapCheckpoint());
 	};
 
+	private final ItemStack _resetItem = new ItemBuilder(Material.BARRIER)
+			.setTitle(C.cRedB + "Reset Kart")
+			.addLore("Click to reset your kart", "back on the track.")
+			.build();
+
 	public MineKart(NanoManager manager)
 	{
 		super(manager, GameType.MINEKART, new String[]
@@ -179,6 +203,13 @@ public class MineKart extends SoloGame implements IPacketHandler
 				return;
 			}
 
+			Location a = locations.get(0), b = locations.get(1);
+
+			if (a.getY() == b.getY())
+			{
+				b.add(0, 1, 0);
+			}
+
 			KartCheckpoint checkpoint = new KartCheckpoint(locations.get(0), locations.get(1), index, args.length > 2);
 
 			_checkpoints.add(checkpoint);
@@ -265,6 +296,8 @@ public class MineKart extends SoloGame implements IPacketHandler
 			_karts.put(player, kart);
 			_positions.add(kart);
 
+			player.getInventory().setItem(8, _resetItem);
+
 			_worldComponent.setCreatureAllowOverride(false);
 		}, 1);
 	}
@@ -291,6 +324,11 @@ public class MineKart extends SoloGame implements IPacketHandler
 				vehicle.setPassenger(player);
 			}
 
+			if (kart.isResetting())
+			{
+				return;
+			}
+
 			Location location = vehicle.getLocation();
 			KartCheckpoint checkpoint = getCheckpoint(location);
 
@@ -317,6 +355,10 @@ public class MineKart extends SoloGame implements IPacketHandler
 					if (lap == LAPS + 1)
 					{
 						kart.complete();
+						UtilFirework.launchFirework(location, FireworkEffect.builder()
+								.with(Type.BALL_LARGE)
+								.withColor(Color.YELLOW)
+								.build(), null, 1);
 						announce(F.main(getManager().getName(), F.name(player.getName()) + " completed the race in " + F.time(UtilTime.MakeStr(kart.getCompletedAt() - getStateTime())) + "!"), Sound.FIREWORK_BLAST);
 						addSpectator(player, false, true);
 					}
@@ -348,7 +390,6 @@ public class MineKart extends SoloGame implements IPacketHandler
 
 			KartController.applyAirResistance(kart);
 
-			// Accelerate
 			if (canControl)
 			{
 				KartController.accelerate(kart);
@@ -360,13 +401,21 @@ public class MineKart extends SoloGame implements IPacketHandler
 
 			KartController.collideBlock(kart);
 
+			if (vehicle.getFallDistance() > 20 || KartController.collideOutOfBounds(kart, _mineplexWorld))
+			{
+				resetKart(kart);
+				return;
+			}
+
 			double velocityLength = kart.getVelocity().length();
 
-			location.add(kart.getVelocity());
+			location.add(kart.getVelocity()).add(kart.getOffset());
 			location.setDirection(kart.getVelocity());
 			UtilEnt.setPosition(vehicle, location);
 			UtilEnt.CreatureLook(vehicle, kart.getYaw());
 
+			kart.getOffset().multiply(0);
+
 			location.getWorld().playSound(location, Sound.PIG_IDLE, (float) (.1 + velocityLength / 2), (float) (.5 + velocityLength));
 			player.setLevel((int) (velocityLength * 100));
 			player.setExp(kart.getDriftPower());
@@ -375,6 +424,60 @@ public class MineKart extends SoloGame implements IPacketHandler
 		_positions.sort(_positionSorter);
 	}
 
+	private void resetKart(Kart kart)
+	{
+		if (kart == null || kart.isResetting())
+		{
+			return;
+		}
+
+		kart.setResetting(true);
+
+		UtilTextMiddle.display(C.cRedB + "Resetting!", null, 0, 50, 10, kart.getDriver());
+
+		LivingEntity vehicle = kart.getVehicle();
+		Location location = vehicle.getLocation();
+		List<Location> points = UtilShapes.getLinesDistancedPoints(location, getCheckpoint(kart.getLapCheckpoint()).getCenter().add(0, 3, 0), 0.5);
+
+		getManager().runSyncTimer(new BukkitRunnable()
+		{
+			@Override
+			public void run()
+			{
+				if (points.isEmpty())
+				{
+					kart.setVelocity(new Vector());
+					kart.setResetting(false);
+					cancel();
+					return;
+				}
+
+				Location location = points.remove(0);
+				location.setYaw(location.getYaw());
+				UtilEnt.setPosition(vehicle, location);
+				UtilParticle.PlayParticleToAll(ParticleType.CLOUD, location, 0.3F, 0.3F, 0.3F, 0, 5, ViewDist.NORMAL);
+			}
+		}, 0, 1);
+	}
+
+	@EventHandler
+	public void playerInteract(PlayerInteractEvent event)
+	{
+		if (event.getAction() == Action.PHYSICAL || !isLive())
+		{
+			return;
+		}
+
+		Player player = event.getPlayer();
+
+		if (!_resetItem.equals(player.getItemInHand()) || !Recharge.Instance.use(player, "Reset Kart", RESET_KART_COOLDOWN, true, true))
+		{
+			return;
+		}
+
+		resetKart(_karts.get(player));
+	}
+
 	@EventHandler
 	public void playerOut(PlayerStateChangeEvent event)
 	{
@@ -412,4 +515,29 @@ public class MineKart extends SoloGame implements IPacketHandler
 				.findFirst()
 				.orElse(null);
 	}
+
+	@EventHandler
+	public void playerChat(AsyncPlayerChatEvent event)
+	{
+		Player player = event.getPlayer();
+		Kart kart = _karts.get(player);
+
+		if (kart == null)
+		{
+			return;
+		}
+
+		try
+		{
+			int index = Integer.parseInt(event.getMessage());
+			player.leaveVehicle();
+
+			UtilEnt.setPosition(kart.getVehicle(), getCheckpoint(index).getCenter());
+			player.sendMessage("Moving kart to " + index);
+		}
+		catch (NumberFormatException ex)
+		{
+
+		}
+	}
 }