I am creating a Mod and I want to place a block on a specified coordinates, how can I do that? I am using Minecraft Forge 1.7.10.
I checked the Block.class and World.class but I didn't find something that does that..
I would really appreciate if someone can help.
Best,
There are several World methods that set blocks. The one thing you need to make sure of is that you need to call them on the server side of the mod, not on the client side. If called from the server side (using the proper method), then it'll automatically send the block change to all nearby players (and store the block change). You can call these methods from either server or client side, but generally you'll only want to call them from server side (you can check with the isRemote field of the World - if it's true then it's on the client; you'll only want to actually do stuff when it's false). Sometimes it does make sense to call from both the client and the server (EG an item that always changes a block, just so that the player doesn't need to deal with lag), but you always also want to change it with the server.
Now, there are several setBlock-like methods. The ones you'll be most interested in is setBlock's 4-parameter method. This method takes an x, y, and z coordinate and then the Block to set. If you want to add metadata, you'll need to use the 6-parameter method, which has x, y, z, the Block, the metadata, and then a flags parameter. This flags parameter does several things, but you'll generally want to set it to 3 so that it causes a block update, sends the change to the client, and doesn't skip rendering. The 4-parameter method simply calls the 6-parameter method with a metadata value of 0 and a flags value of 3.
So:
if (!world.isRemote) {
// Sets the block at 9, 64, 20 to dirt
world.setBlock(9, 64, 20, Blocks.dirt);
// Sets the block at 9, 64, 21 to wool:15, IE black wool
world.setBlock(9, 64, 21, Blocks.wool, 15, 3);
}
Related
I have 2 storages (called storageA & storageB) and I want to move an agent (pallet) from one to the other via forklifts. I have set up the following.
A pallet is created at a node and is moved to storageA via 'store'. This part works fine. The pallet is then moved to storageB via 'store1' after a delay. This is when the following error occurs:
Exception during discrete event execution:
root.store1.seizeTrans.freeSpaceSendTo:
Path not found! {agent=2, source={level=level, pos=(1673.3333333333333, 3245.0, 0.0)}, target={level=level, pos=(1857.25, 3160.4845, 0.0)}}
It works if I replace 'store1' with a retrieve block and send it to a node first. However I would like to send the pallet directly to another storage rather than via another location. Is this possible?
Please let me know if I have not provided enough information.
Thanks
yeah unfortunately you can't do that as far as I know, the solution I use is the following, which is actually not a super robust solution... but has been ok in applications so far
Place a retrieve block between your delay and your store1
Use the agent you pick up as destination:
on the on seize action of the retrieve block do:agent.transporter=unit;
4.On the store1 block put the highest priority for the task
5. ON the store1 block use resource custom transporter choice: agent.transporter.equals(unit)
6. The dispatching policy should be nearest to the agent in store1, but doing all the above ensures that the resource continues doing the task no matter what... by only using the dispatch policy your model will work 99.999999% of the time... the problem occurs only if another task with higher priority occurs at the exact same time as the transporter is released in the retrieve block, which is rare, but can happen.
I had the same question today so I landed here. But luckily, only after the second step written above, the whole process needed did already work for my case. We can move an agent from one storage to another by simply set the destination of the 'retrieve' block to the coordinate of the agent and the move to independently instead of by fleets or resources. after that we put the 'store' block.
Destination is: (x,y,z)
X: agent.getX()
Y: agent.getY()
Z: agent.getZ()
after agents being retrieved to a specified coordinate, it seems that fleets do not comply paths in the network anymore
I'm trying to retrieve the serial number from a drive using the MC_BR_GetHardwareInfo function block. Since the documentation lacks any kind of example code on this topic I'm getting nowhere.
Which information should I provide to the function block in order to get the desired serial number?
Below sample will crash in the PLC, probably because the function block requires certain pointers to be addressed:
MC_HARDWARE_INFO_REF hwinfo;
MC_BR_GetHardwareInfo(&hwinfo);
You are probably getting a page fault, because you provide the MC_BR_GetHardwareInfo function block (FUB) a wrong type, which leads to random behavior.
A function block is basically a function which requires a reference to a specific type as parameter. This type contains the actual in- and outputs which are used, internal state variables, etc. We need this, because of the synchronous execution of the code. This means unlike a function, you need to call a FUB until it is done.
Let's take a look to the help of the FUB:
Guid: 056444ea-2a15-4af6-a5ae-0675894b17d3
So the FUB needs a reference to the Axis object of which you want to know the HW info and an Execute command. It will give you some status bits, an error code and the actual data you want to have within the structure HardwareInfo of the type MC_HARDWARE_INFO_REF.
First we need to instantiate the FUB by create a variable of its type. We do this in the local *.var file of the task:
VAR
fbGetHwInfo : MC_BR_GetHardwareInfo := (0);
END_VAR
Then we call set the parameters of the FUB and call it, which might look like this:
void _CYCLIC ProgramCyclic(void)
{
//should be set by the application or in watch/monitor; now it only
//executes once
fbGetHwInfo.Execute = 1;
//reference to your axis object; when using a wizard the first axis
//will be gAxis01 on default
fbGetHwInfo.Axis = (UDINT)&gAxis01;
//call the FUB
MC_BR_GetHardwareInfo(&fbGetHwInfo);
if(fbGetHwInfo.Error == 1)
{
//TODO: errorhandling
}
else if(fbGetHwInfo.Done == 1)
{
//TODO use output
//fbGetHwInfo.HardwareInfo
}
}
typically you would do this in some statemachine. Also you probably have to wait until the network to the drive is initialized. You could check this with the MC_BR_ReadDriveStatus FUB. Just for testing it should be enough to wait for some seconds after reboot and set the Execute flag in monitor mode.
I'm trying to read from my XBox 360 controller without polling it. (To be precise, I'm actually using a Logitech F310, but my Windows 10 PC sees it as an XBox 360 controller.) I've written some rather nasty HID code that uses overlapping I/O to block in a thread on two events, one that indicates there is a report ready to read from the HID device, the other indicating the UI thread has requested the HID thread to exit. That works fine, but the HID driver behaves somewhat differently than XInput does. In particular, it consolidates the two triggers into a single value, only passing their difference (on the curious claim that games expect HID values to be 0x80 when the player's finger is off the control). XInput treats them as two distinct values, which is a big improvement. Also, XInput reports the hat switches as four bits, which means you can actually get ten states out of it: unpressed, N, NE, E, SE, S, SW, W, NW, and all-down (that last might be hard to use successfully, but at least it's there if you want it; I've been using it to exit my polling loop).
The downside, to me, of XInput is that there appears to be no way to block on a read request until the controller changes one of its values or buttons. As an HID device, the ReadFile call will block (more exactly, WaitForMultipleEvents blocks until there is data available). XInput seems to anticipate polling. For a game that would naturally be written to poll the controller as often as it updated the game state (maybe once for each new video frame displayed, for example), that makes sense. But if you want to use the controller for some other purpose (I'm working on a theatrical application), you might want a purely asynchronous system like the HID API supplies. But, again, the HID API combines the two value triggers.
Now, when you read the device with XInput, not only do you get the state of all the controls, you also get a packet number. MSDN says the packet number only changes when the state of a control changes. That way, if consecutive packet numbers are the same, you don't have to bother with any processing after the first one, because you know the controller state hasn't changed. But you are still polling which, to me, is somewhat vulgar.
What intrigues me, however, is that when I put a big delay in between my polls (100ms) I can see that the packet numbers go up by more than one when the value controls (the triggers or sticks) are being moved. This, I think, suggests that the device is sending packets without waiting to be polled, and that I am only getting the most recent packet each time I poll. If that is the case, it seems that I ought to be able to block until a packet is sent, and react only when that happens, rather than having to poll at all. But I can't find any indication that this is an option. Because I can block with the HID API, I don't want to give up without trying (including asking for advice here).
Short of writing my own driver for the controller (which I'm not sure is even an option without proprietary documentation), does anyone know how I can use overlapping I/O (or any other blocking method) to read the XBox 360 controller the way XInput does, with the triggers as separate values, and the hat as four buttons?
Below is some code I wrote that reads the controller and shows that the packet numbers can jump by more than one between reads:
#include <Windows.h>
#include <Xinput.h>
#include <stdio.h>
#define MAX_CONTROLLERS 4
int main()
{
DWORD userIndex;
XINPUT_STATE xs;
XINPUT_VIBRATION v;
XInputEnable(TRUE);
// Which one are we?
for (userIndex = 0; userIndex < XUSER_MAX_COUNT; ++userIndex)
if (XInputGetState(userIndex, &xs) == ERROR_SUCCESS)
break;
if (userIndex == XUSER_MAX_COUNT)
{
printf("Couldn't find an Xbox 360 controller.\n");
getchar();
return -1;
}
printf("Using controller #%1d.\n", userIndex);
while (TRUE)
{
DWORD res = XInputGetState(userIndex, &xs);
printf("%5d %6d: %3d %3d %3d %3d %3d %3d 0x%04X\n",
res,
xs.dwPacketNumber,
xs.Gamepad.bLeftTrigger & 0xFF,
xs.Gamepad.bRightTrigger & 0xFF,
xs.Gamepad.sThumbLX & 0xFF,
xs.Gamepad.sThumbLY & 0xFF,
xs.Gamepad.sThumbRX & 0xFF,
xs.Gamepad.sThumbRY & 0xFF,
xs.Gamepad.wButtons);
if (xs.Gamepad.wButtons == 0x000F) // mash down the hat
break;
Sleep(100);
}
getchar();
return 0;
}
Please note that DirectInput isn't much help, as it also combines the triggers into one value.
Thanks!
Not sure there is any advantage to this, but could you write a thread that polls on a regular interval and then sets a semaphore (or some other signal) when the state has changed. Then your main thread could block waiting for the signal from the polling thread. But potentially there might not be any advantage to this system because on some controllers the values of the thumbsticks change slightly ever frame whether you move them or not. (Noise) You could of course ignore small changes and only signal your semaphore when a large change occurred.
The first handler listens some channel of messages and if there is an incoming message, it sets interval:
toggleFlagInterval = setInterval (-> toggleFlag), 500
Messages can be arbitrarily much, but I need to set only one interval.
Second handler reads the message and in it I want to remove the interval:
clearInterval toggleFlagInterval
I want to control that was always zero or one interval .
To do this, I need to find all set intervals.
How to find all set intervals using CoffeeScript?
I would be very grateful for your help.
Thanks to all.
That doesn't make sense. You cannot find all functions registered with setInterval, with or without CoffeeScript (that would be a JavaScript question, it has nothing to do with CoffeeScript). You just need to keep track of them yourself.
It seems like in this specific case, you simply need to choose to conditionally not set an interval, if one is already set.
To do so, your setting code would use ?=:
toggleFlagInterval ?= setInterval (-> toggleFlag), 500
And your clearing code would reset toggleFlagInterval to null:
clearInterval toggleFlagInterval
toggleFlagInterval = null
Alternatively, you need to cancel any already set interval at the point when you set a new one:
clearInterval(toggleFlagInterval) if toggleFlagInterval?
toggleFlagInterval = setInterval (-> toggleFlag), 500
We have a customer who is using a new Asterisk phone system we set up for them using SPA504Gs and SPA500DS sidecars. They want to mimic their old system, where once a call is picked up on an extension it can be placed on hold and picked up from anywhere without having to actively transfer it to a single phone.
For instance, person A picks up Line 1. Person A pages all the phones to say there is a call available on Line 1 for Person B. Person B needs to be able to pick that call up wherever they are.
We currently have the SPA504G's set up where Line 1 is the inbound extension, and Lines2-4 represent the DID's for the customer. When a call is picked up off one of the DIDs it is only active on that phone, so that other callers could call into the DID.
We're unclear how to make it so the call can be picked up from anywhere, could be make a 'Parked Call' key on the sidecar that could old these calls somehow? Is there an easier way that would actively mimic their old PBX more directly (where 'Line 1' was actually 'Line 1' everywhere).
That feature called call parking and it already present in most asterisk system
Or maybe you are reffering to call pickup(*8) - if so you have put same pickupgroup on all extensions.
Unfortanly no way say which system you have and how to enable it on your system.