java -Xmx1024M -Xms1024M -jar craftbukkit-1.7.9-R0.1-20140424.033947-16.jar -o true
PAUSE
Layout
craftbukkit-1.7.9-R0.1-20140424.033947-16.jar
[logs]
[crash-reports]
[world]
[world_nether]
[world_the_end]
[plugins]
BukkitExtras.jar
DMinigames_v0.3.6.jar
Easy_Warp.jar
Essentials.jar
EssentialsAntiBuild.jar
EssentialsChat.jar
EssentialsGeoIP.jar
EssentialsProtect.jar
EssentialsSpawn.jar
EssentialsXMPP.jar
Microblocks.jar
PlayerHeads.jar
Wednesday, May 14, 2014
Tuesday, April 22, 2014
Calculating the angle for DTV antenna from my place to Three Rock
Which basically wrt geographic (grid) North equates to 36 degs (NE) or 206 degs (SW).
But don't forget the magnetic correction you'll need to apply up in the attic!
The way I think of it is, the compass is in error by 6 degrees West.
So basically, if using a magnetic compass, the aerial should align 42 deg (NE) or 212 degs (SW).
Messy, but the diagram above uses a protractor compass. Actual maps and compasses mark North as zero degrees.
But don't forget the magnetic correction you'll need to apply up in the attic!
The way I think of it is, the compass is in error by 6 degrees West.
So basically, if using a magnetic compass, the aerial should align 42 deg (NE) or 212 degs (SW).
Messy, but the diagram above uses a protractor compass. Actual maps and compasses mark North as zero degrees.
Monday, March 31, 2014
Video of another training row on the Liffey
Old Collegians training row Sunday 30th march 2014 River Liffey, Islandbridge.
From the bow: Gerry, Tom, Peter, Sean, Chris, John, Allen, James, Mike (cox).
From the bow: Gerry, Tom, Peter, Sean, Chris, John, Allen, James, Mike (cox).
Part I - warm-up
Part II - Downstream exercises
Part III - Back upstream
Part IV - Downstream run
Tags: masters rowing,ucd old collegians,ucd,river liffey,dublin,ireland
Tuesday, March 18, 2014
Simple Gravity in Scratch
Goal:
I want to make objects fall realistically so that I can make a puzzle game.
What stuff do I know?
The game could take place within a single large field, i.e. like Earth where we experience gravity acting in just one direction e.g. -y
An object will fall (accelerate) under its own weight, in a gravity field if it is unsupported.
Objects have mass, mass confers inertia.
Weight is the force of attraction between two objects with mass, usually a very large massive object (the Earth) and a much smaller object with little mass.
An objects spatial volume/area matters, i.e. objects don't interpenetrate (usually).
Part 1 - Simple version in space based on Newton's first law of motion
We'll start with an object, a ball say... We'll make it a vector graphic, not a bitmap. Because we'll probably be using 'touching' from 'sensing'.
Zero the circle; go to x:0, y:0
Add a 'glide 1 secs to' a new position within the coordinate boundaries of the field (-240, 180; +240, +180).
Run it and demonstrate movement.
I want to make objects fall realistically so that I can make a puzzle game.
What stuff do I know?
The game could take place within a single large field, i.e. like Earth where we experience gravity acting in just one direction e.g. -y
An object will fall (accelerate) under its own weight, in a gravity field if it is unsupported.
Objects have mass, mass confers inertia.
Weight is the force of attraction between two objects with mass, usually a very large massive object (the Earth) and a much smaller object with little mass.
An objects spatial volume/area matters, i.e. objects don't interpenetrate (usually).
Part 1 - Simple version in space based on Newton's first law of motion
A body tends to remain at rest or continue to move in a straight line at constant velocity unless it is acted upon by an external force. This is the concept of inertia.The simplest version of the first law we can make is classical 2-D particle kinematics, i.e. bodies in motion in zero gravity and sliding on a frictionless surface with lossless collisions and ignoring rotational dynamics.
We'll start with an object, a ball say... We'll make it a vector graphic, not a bitmap. Because we'll probably be using 'touching' from 'sensing'.
Zero the circle; go to x:0, y:0
Add a 'glide 1 secs to' a new position within the coordinate boundaries of the field (-240, 180; +240, +180).
Run it and demonstrate movement.
Monday, January 20, 2014
Note to self, review these Raspberry Pi introductory videos...
Get started with RaspberryPi.org (link) or with Raspberry Pi on e14's website (link).
Most recently used "NOOBS Offline and network install".
So starting with the SD card inserted and mounted... in MY CASE ONLY, from an xterm using the df -h command, the device name (and therefore the 'raw device name') is disk1 (or rdisk1 for its raw equivalent), i.e.
Next, unmount it using 'sudo diskutil unmount /dev/disk1s1' (my case only). The icon will also disappear from the desktop confirming this step was successful.
The last step is to wri the image file to the raw SD card device as identified above, replacing disk1s1 with rdisk1:
After anywhere from 3 to 5 minutes the disk image write finishes. The xterm looked like this:
And there's a shiny new disk labelled 'Untitled' on the desktop. At first impression it looks like your 4G or 8G sized disk has tragically shrunk to 60 or 70 MB. The reason is that the SD disk now has a Linux swap partition and a Linux filesystem partition occupying the available space. The good news is that most of the slack space can be recovered the first time you load this SD card on the Raspberry Pi via one of the Pi configurator (raspi-config) options to reallocate the space from the linux partition to the FAT32 partition.
Most recently used "NOOBS Offline and network install".
So starting with the SD card inserted and mounted... in MY CASE ONLY, from an xterm using the df -h command, the device name (and therefore the 'raw device name') is disk1 (or rdisk1 for its raw equivalent), i.e.
$ df -h
Filesystem Size Used Avail Capacity iused ifree %iused Mounted on
/dev/disk0s2 112Gi 108Gi 3.6Gi 97% 28456655 955713 97% /
devfs 184Ki 184Ki 0Bi 100% 636 0 100% /dev
map -hosts 0Bi 0Bi 0Bi 100% 0 0 100% /net
map auto_home 0Bi 0Bi 0Bi 100% 0 0 100% /home
map -fstab 0Bi 0Bi 0Bi 100% 0 0 100% /Network/Servers
/dev/disk1s1 3.7Gi 832Ki 3.7Gi 1% 0 0 100% /Volumes/XBMC
Next, unmount it using 'sudo diskutil unmount /dev/disk1s1' (my case only). The icon will also disappear from the desktop confirming this step was successful.
$ sudo diskutil unmount /dev/disk1s1
The last step is to wri the image file to the raw SD card device as identified above, replacing disk1s1 with rdisk1:
$ sudo dd bs=1m if=./raspbmc-2013-12-23.img of=/dev/rdisk1
After anywhere from 3 to 5 minutes the disk image write finishes. The xterm looked like this:
1300+0 records in
1300+0 records out
1363148800 bytes transferred in 243.253827 secs (5603812 bytes/sec)
And there's a shiny new disk labelled 'Untitled' on the desktop. At first impression it looks like your 4G or 8G sized disk has tragically shrunk to 60 or 70 MB. The reason is that the SD disk now has a Linux swap partition and a Linux filesystem partition occupying the available space. The good news is that most of the slack space can be recovered the first time you load this SD card on the Raspberry Pi via one of the Pi configurator (raspi-config) options to reallocate the space from the linux partition to the FAT32 partition.
Monday, December 23, 2013
Monday, December 16, 2013
Minecraft Server: Bukkit dev install notes
Bukkit is a full update/replacement for your minecraft server.
A straightforward installation, just copy the jar into your server folder.
Take care to backup your world folder in case of loss.
The Bukkit version of the Minecraft server can load plugins just like the original Minecraft server. Just copy plugin files to the plugin folder.
Examples:
worldedit http://dev.bukkit.org/bukkit-plugins/worldedit/
dminigames http://dev.bukkit.org/bukkit-plugins/dminigames/
prophunt http://dev.bukkit.org/bukkit-plugins/tomskiesprophunt/
easy warp http://dev.bukkit.org/bukkit-plugins/easy-warp/
player heads http://dev.bukkit.org/bukkit-plugins/player-heads/
micro blocks http://dev.bukkit.org/bukkit-plugins/microblocks/
commands of interest from the client side:
//hcyl redstainedglass 20 30
/time set 1
//set stonebrick
/clear
/tp selftoplayername
/tp otherplayername toselfname
/me message
/name
/gamemode 1 (sets own gamemode to 1=creative)
/gamemode 0 (sets own gamemode to 0=survival)
/setwarp
/kill
/socialspy
/tell
//walls stonebrick
//set 0
//set wood
//magicpartyarmourhao:pf
/help
/name
/nick
//wand
/op playername
/deop playername
/kick
/ban
/p1
//x-ray
A straightforward installation, just copy the jar into your server folder.
Take care to backup your world folder in case of loss.
The Bukkit version of the Minecraft server can load plugins just like the original Minecraft server. Just copy plugin files to the plugin folder.
Examples:
worldedit http://dev.bukkit.org/bukkit-plugins/worldedit/
dminigames http://dev.bukkit.org/bukkit-plugins/dminigames/
prophunt http://dev.bukkit.org/bukkit-plugins/tomskiesprophunt/
easy warp http://dev.bukkit.org/bukkit-plugins/easy-warp/
player heads http://dev.bukkit.org/bukkit-plugins/player-heads/
micro blocks http://dev.bukkit.org/bukkit-plugins/microblocks/
commands of interest from the client side:
//hcyl redstainedglass 20 30
/time set 1
//set stonebrick
/clear
/tp selftoplayername
/tp otherplayername toselfname
/me message
/name
/gamemode 1 (sets own gamemode to 1=creative)
/gamemode 0 (sets own gamemode to 0=survival)
/setwarp
/kill
/socialspy
/tell
//walls stonebrick
//set 0
//set wood
//magicpartyarmourhao:pf
/help
/name
/nick
//wand
/op playername
/deop playername
/kick
/ban
/p1
//x-ray
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