[1.3.2] Mounting Entitites [UNSOLVED]

[fisherman77]

Hello! I have recently upgraded to the new Forge and MC 1.3.2. However, I can not get this one little bug squashed!

 

Here is the error log:

 

2012-09-14 17:30:19 [sEVERE] [ForgeModLoader] A critical server error occured handling a packet, kicking net.minecraft.src.NetServerHandler@111de95a
java.lang.ClassCastException: net.minecraft.src.EntityPlayerMP cannot be cast to net.minecraft.src.EntityPlayerSP
at fisherman77.Zeuscraft.common.EntityPegasus.onUpdate(EntityPegasus.java:200)
at net.minecraft.src.World.updateEntityWithOptionalForce(World.java:2027)
at net.minecraft.src.WorldServer.uncheckedUpdateEntity(WorldServer.java:547)
at net.minecraft.src.NetServerHandler.handleFlying(NetServerHandler.java:186)
at net.minecraft.src.Packet10Flying.processPacket(Packet10Flying.java:51)
at net.minecraft.src.MemoryConnection.processReadPackets(MemoryConnection.java:75)
at net.minecraft.src.NetServerHandler.networkTick(NetServerHandler.java:72)
at net.minecraft.src.NetworkListenThread.networkTick(NetworkListenThread.java:55)
at net.minecraft.src.IntegratedServerListenThread.networkTick(IntegratedServerListenThread.java:111)
at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:630)
at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:547)
at net.minecraft.src.IntegratedServer.tick(IntegratedServer.java:105)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:453)
at net.minecraft.src.ThreadServerApplication.run(ThreadServerApplication.java:17)

 

and here is the effected lines:

 

public void onUpdate()    
{  
   super.onUpdate();        
   if(riddenByEntity != null)
   {
       EntityPlayerSP entityplayersp = (EntityPlayerSP)riddenByEntity;
       double uplift = 0.45500000000000002D;
       if (entityplayersp.movementInput.jump)
       {
    		  motionY = 0.1D;
       }

       if (entityplayersp.movementInput.sneak)
       {
              motionY = -0.1D;
       }

[Ebilkill]

That riddenByEntity variable is a EntityPlayerMP object. However, you are trying to cast it to a EntityPlayerSP, which is impossible. Try to use another way

[ObsequiousNewt]

IIRC, functions like that get called twice- once with a EntityPlayer, and once with a EntityPlayerMP (or something like that.) But I'm not sure if that'll help.

 

What about registering key-bindings?

[Ebilkill]

IIRC, functions like that get called twice- once with a EntityPlayer, and once with a EntityPlayerMP (or something like that.) But I'm not sure if that'll help.

 

What about registering key-bindings?

 

Dude, the registering is probably fine, because if you look at the crashlog, it'll tell you that he's trying an invalid type-cast. That's probably his main problem now.

[fisherman77]

Thanks for the help so far! However, I do still have a problem with EntityPlayerMP casting into itself for that line:

 

 java.lang.ClassCastException: net.minecraft.src.EntityClientPlayerMP cannot be cast to net.minecraft.src.EntityPlayerMP
2012-09-16 10:35:08 [iNFO] [sTDERR] 	at fisherman77.Zeuscraft.common.EntityPegasus.onUpdate(EntityPegasus.java:202)
2012-09-16 10:35:08 [iNFO] [sTDERR] 	at net.minecraft.src.World.updateEntityWithOptionalForce(World.java:2027)
2012-09-16 10:35:08 [iNFO] [sTDERR] 	at net.minecraft.src.World.updateEntity(World.java:1992)
2012-09-16 10:35:08 [iNFO] [sTDERR] 	at net.minecraft.src.World.updateEntities(World.java:1873)
2012-09-16 10:35:08 [iNFO] [sTDERR] 	at net.minecraft.client.Minecraft.runTick(Minecraft.java:1771)
2012-09-16 10:35:08 [iNFO] [sTDERR] 	at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:834)
2012-09-16 10:35:08 [iNFO] [sTDERR] 	at net.minecraft.client.Minecraft.run(Minecraft.java:764)
2012-09-16 10:35:08 [iNFO] [sTDERR] 	at java.lang.Thread.run(Thread.java:680) 

 

BTW, I changed the ascending and descending by using this code (this also includes the most current code):

EntityPlayerMP entityplayermp = (EntityPlayerMP)riddenByEntity;
       double uplift = 0.45500000000000002D;
       /*
       if (entityplayersp.movementInput.jump)
       {
    		  motionY = 0.1D;
       }

       if (entityplayersp.movementInput.sneak)
       {
              motionY = -0.1D;
       }
       */
       motionY = riddenByEntity.motionY * uplift;

 

Should I try keybindings? If so, could you direct me to a good tut?

[Ebilkill]

java.lang.ClassCastException: net.minecraft.src.EntityClientPlayerMP cannot be cast to net.minecraft.src.EntityPlayerMP

Have you read this very carefully? Because you would've noticed that this doesn't cast to itself, but it casts a EntityClientPlayerMP to a EntityPlayerMP (see the Client in the first one?) I have no idea how to fix this though...

[fisherman77]

Ya. I also tried EntityPlayerClientMP, or whatever it was that was mentioned in this post above, and it gave me the exact same error, which is peculiar.

[MrGirboto]

have you tried just EntityPlayer?

[fisherman77]

Ya I think I fixed it for the controlling for the most part, but now I am just getting a packet error - the server suspects cheating?

 

2012-09-18 19:37:15 [sEVERE] [ForgeModLoader] A critical server error occured handling a packet, kicking net.minecraft.src.NetServerHandler@75d7d567
java.lang.NullPointerException
at fisherman77.Zeuscraft.common.EntityPegasus.updateEntityActionState(EntityPegasus.java:110)
at net.minecraft.src.EntityLiving.onLivingUpdate(EntityLiving.java:1537)
at net.minecraft.src.EntityLiving.onUpdate(EntityLiving.java:687)
at fisherman77.Zeuscraft.common.EntityPegasus.onUpdate(EntityPegasus.java:249)
at net.minecraft.src.World.updateEntityWithOptionalForce(World.java:2027)
at net.minecraft.src.WorldServer.uncheckedUpdateEntity(WorldServer.java:547)
at net.minecraft.src.NetServerHandler.handleFlying(NetServerHandler.java:186)
at net.minecraft.src.Packet10Flying.processPacket(Packet10Flying.java:51)
at net.minecraft.src.MemoryConnection.processReadPackets(MemoryConnection.java:75)
at net.minecraft.src.NetServerHandler.networkTick(NetServerHandler.java:72)
at net.minecraft.src.NetworkListenThread.networkTick(NetworkListenThread.java:55)
at net.minecraft.src.IntegratedServerListenThread.networkTick(IntegratedServerListenThread.java:111)
at net.minecraft.server.MinecraftServer.updateTimeLightAndEntities(MinecraftServer.java:630)
at net.minecraft.server.MinecraftServer.tick(MinecraftServer.java:547)
at net.minecraft.src.IntegratedServer.tick(IntegratedServer.java:105)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:453)
at net.minecraft.src.ThreadServerApplication.run(ThreadServerApplication.java:17)

[Ebilkill]

Maybe you should add a check to make sure there isn't a NullPointer. Thid line: EntityPegasus.java:110 has an error, because you try to use a variable which holds the value "null". Just make sure it isn't null when you use it, like so:

if(var != null) {
    // Code Here 
}