WorldMaker 2000 User Manual
Contents
1. However if you choose to play the multi user version of WorldMaker there would be a dialogue box asking you for your username and your host name Your username is what you want to be known by in this session and the host name is the server that you would like to use on this occasion The default setting is ocalhost i e your own workstation Enter the domain name or the IP for the server that you wish to use e g for the CITE WorldMaker server use cite wm cite hku hk fas Network Connection x User id Host localhast Note that if your network s firewall prevents you from accessing port 2468 you may not be able to connect to other hosts You would then see a list of sessions that are currently active on the server that you re using Each session represents a world that is being run at any given time Select the session and click CITE University of Hong Kong Page 3 12 20 2001 WorldMaker 2000 User Manual on Join session to join that session You will then need to wait for the session owner see below to authorize you to join the session p Network Connection Alternatively you may type in the name of a new session and start a new session by clicking on the New Session button Please note that you would then assume the rights of the session owner You will then see a list of people joining the session When you re ready go forth and specify the size of the session fs Network C2. a rule will be run change the percentage controls on each rule This is also accessible by clicking the percentage sign beside each object on the list of objects Background controls We offer a range of controls for altering the background of the map area H Toggles the display of the grid on the map on off Enables you to choose the colour of the grid Toggles whether the background image is shown CITE University of Hong Kong Page 12 12 20 2001 WorldMaker 2000 User Manual pes Allows you to choose the image GIF or JPG image for use as the background image are two different controls for controlling the display size of the map Operational controls E dir Parameter 0 a dir Parameter 0 This shows the parameter and direction of the foreground and background objects that your mouse is on top of The following operational controls are only available to the session owner You may vary the operating mode of the world using these controls The rewind button takes you back to the state of the World when it was last reset and resets the Statistics for the world The stop button stops the simulation m The play button starts the animation in turn there is a uo button for running the world for 1 iteration only The scroll bar controls the speed at which the simulation would be run The Statistics controls These controls govern the statistics tool of the world The
3. in the selected area a Delete instances of the specified foreground object per object selection panel E3 Delete instances of the specified background object o To reset the entire world area and make it blank but keep the object and rule definitions you may choose to use the reset button Rule setting commands The actions that objects undergo are defined by the rules that can be set They can be found in the object properties dialogue CITE University of Hong Kong Page 9 12 20 2001 WorldMaker 2000 User Manual Object properties x x bird Fy Add rule Remove rule Up swap Down swap Until one Please note that you could also set global rules and there is a global parameter these instructions are placed with the instructions for the statistics tool as they go hand in hand Double click on the object to enter this dialogue Please note that in multi player mode you must first take the object lock To take the lock click on the lock button at the bottom of the access control panel of the main panel Please note that only one person could have the lock for any object at any one time and each person could only take the lock for one object at any one time If you have either of those conditions not satisfied you will be put in the waiting list for that object s lock When the lock is released or in the latter case when you relinquished the lock for the object the lock is passed on th
4. on would have its colour replaced by the colour that you have selected The grid toggle switches the display of the grid on off on the icon editing interface When you are satisfied with the results of the image that you have created click on OK to update the icon Object placement commands Objects can be placed by any user on the grid Each space may have one foreground and one background object To place objects onto the world select that object from the list of objects on the left hand side of the interface and then select Add object the icon is The slide bar below that allows one to select the percentage probability that each individual pixel would have the selected object added to the cell If an object is placed in a cell that already has the same sort of object e g if foreground object A is placed in a cell already containing foreground object B then the original object would be overwritten The direction of the object can be set by selecting one of the eight directions in that selection box If you would like to set it to a random direction then select the random direction option Coordinate selection tool Object deletion commands There are various object deletion commands that you could use Again these can be set such that the probability of execution in each cells is not 100 by sliding the slide bar at the bottom of that window These options include i Delete all objects and background
5. WorldMaker 2000 User Manual WorldMaker 2000 User Manual CITE University of Hong Kong 2001 All instructions comments in blue are relevant only for the multi player mode for WorldMaker 2000 CITE University of Hong Kong Page 1 12 20 2001 WorldMaker 2000 User Manual Overview WorldMaker is a form of a system that is based on a square grid system it is based upon the interactions of entities that act locally Each cell may have two entities an object and a background which may interact together or separately Binary interactions as defined by the rules are evaluated between the cell under consideration and each of the neighbouring cells in turn in the Moore neighbourhood the eight cells around a central cell under consideration Whilst a cell may interact with each of its neighbouring cells in turn it nevertheless cannot interact with more than one other cell simultaneously One useful feature of WorldMaker is that one can alter the neighbourhood that is being simulated by pre defining the relative locations of the neighboring cells that needs to be evaluated when the simulation is run so that the neighbourhood to be evaluated is not restricted to the Moore neighbourhood The new version of WorldMaker 2000 has the following new features amongst others Support for multi player use Increased flexibility due to a larger rule library Parameter settings Background image support Unlimited number of rules and
6. buttons include Saves the configuration of the world a Opens closes the graph window FE Toggles the gridlines on the graph see below When you access the graph window you will see CITE University of Hong Kong Page 13 12 20 2001 WorldMaker 2000 User Manual 0 30 6O Y 120 150 180 210 240 270 300 330 360 390 420 450 480 510 540 On the right hand side you see two icons one is for adding new statistics to be graphed and one is for deleting statistics definitions You can edit the definitions by double clicking the definition on the list on the right hand side of the interface Statistic Definition Hame Enter the name here Foreground background Swatches HSE P a all FXCZEC Objects to he counted Recent i 3 3 Dmm E No Fg Obj xX No By Obj ee ooo ee ee eee A Any Fg Obj Preview m Sample Text Sample Text a CI Sample Text Sample Text The sum that will be displayed on the graph is the sum total of the number of cells with the configuration in Objects to be counted for this purpose any background includes blank backgrounds To change the colour select the right colour either under the swatches or the HSB selection tab The graph statistics will update as the simulation is run Global rules As mentioned earlier a feature that is present is the ability to set global rules This can be set using the controls ac
7. cessible by selecting the global rules button These rules allow you to stop the simulation when a certain statistic reaches a certain level This can be done by selecting the statistic that the rule is supposed to act on set the parameters on it and then press on OK to confirm You can only set one global rule CITE University of Hong Kong Page 14 12 20 2001 WorldMaker 2000 User Manual Appendix Rule Engine Logic Please note the following restrictions on the rule engine logic for WorldMaker 2000 1 On each iteration the rule engine will only consider the logic for each rule for one neighbouring object chosen at random only This means for instance that if the rule was considered for the North direction regardless of whether the rule was actually run for that direction or not it will not be considered for any other direction 2 After a rule has changed an object from something to something else this object will not run any further rules for the current generation and will not be affected by any rules in the current generation CITE University of Hong Kong Page 15 12 20 2001 WorldMaker 2000 User Manual Frequently Asked Questions 1 Can I use World Maker Hong Kong world files in WorldMaker 2000 Sorry but as the architecture of WorldMaker 2000 is substantially different from World Maker Hong Kong the files are not mutually compatible With the new interface we feel that it would be easier and better i
8. e next person on the waiting list The lock button looks like a and the unlock button looks like a To add new rules click on the Add rule button You would then be able to define new rules CITE University of Hong Kong Page 10 12 20 2001 WorldMaker 2000 User Manual i fe Rule definition Condition Foreground background x x bird Outcome Ho Fg Obj lt lt Ho Bg Obj ae Parameter Finish The rule definition is defined in three parts Condition The condition is the prerequisite requirements for the rule to be run if this is not satisfied this rule would not be executed The conditions are based upon the foreground and background objects on the cell being considered as well as the one next to it Other conditions may include the direction of the object being considered and parameter values for the foreground and background objects of the cell being considered and the adjacent cell To set conditions for these parameter values please click on the Parameter button where further conditions on this can be set Action This defines what would be changed You could change either the object itself or its direction using the rule or you can set it to jump move to the next cell Outcome Based on your action as defined in action by dragging and dropping the components from the palette on the left hand side to obtain the final desired configuration You could also set changes to t
9. he parameter associated with the object by setting it in the parameter box You should also set a name and a description for each rule Once you have set up a rule you would then be able to see it in the object properties window To edit the rule double click on that panel There are some more settings here all of which except for the probability setting require the user to have custody of the object lock CITE University of Hong Kong Page 11 12 20 2001 WorldMaker 2000 User Manual 3 Object properties Goa fish o A reproduce ml ZA cuttefishing 4D The rules can be made to run in three modes Randomly pick one this mode would randomly pick one of the rules on the list with equal probability of doing so Until one this runs each rule one by one by the order displayed on the panel Test all runs each and every rule once in the order that is displayed on the object properties panel Please be careful with using this mode as the order of rules is still important as they are run sequentially If rules involving movement are not placed as the last rule it may nullify the next set of rules In general it is a good idea to put movement rules at the end Remove a rule by selecting it single clicking the rule and then select remove rule To move a rule up down the order on the list select the rule and use the up swap and down swap commands To change the probability that
10. n most cases to just rebuild the world files perhaps exploiting the new capabilities of WorldMaker 2000 in order to develop more elegant solutions to the problems CITE University of Hong Kong Page 16 12 20 2001
11. ntrols See O x Ei WorldMaker 2000 beta PAo A EE Foreground lib t Access Control Status Lock holder Waiting List R dir Parameter 0 a dir Parameter 0 a g Page 2 Sec 1 2 2 At 4 2 in 18 Col 1 REC TRK ExT star eae WR English Us OK Gy worldmaker Open Dir 3 Printers CITE Ho f Manual id E worldma Chat E worlam St 3 Bul egin This screen contains various sets of controls for different purposes If you are using the single user version some sections will not appear File manipulation commands Tam These commands are found at the top left corner of the interface If you are using the multi user version the file manipulation options are only available for the session owner The following commands are available i New world allows you to start over with a new world You will be prompted to select a size for the world WorldMaker supports worlds with sizes from 20x20 to 100x100 in size CITE University of Hong Kong Page 6 12 20 2001 WorldMaker 2000 User Manual fii Map Size Definer E X Ho of cell on Y axis Ho of cell on X axis Grid size 20x20 Finish However you are advised that the larger the world map the slower the world will run Therefore it is best if you use only a world window that is as big as you need it
12. objects Descriptions for rules CITE University of Hong Kong Page 2 12 20 2001 WorldMaker 2000 User Manual Getting WorldMaker 2000 up and running Installation instructions Please note that you need to install both Java Runtime Environment 1 3 1 and the Java Advanced Imaging add on before you install World Maker 2000 The following instructions assume you re using Windows 95 or above All of these components can simply be downloaded from the World Maker website at http worldmaker cite hku hk worldmaker pages download htm You may already have Java Runtime Environment installed on your computer however please ensure that you have the Advanced Imaging add on installed as well this is not a component of the JRE Please note that the Java Runtime Environment JRE that you have on your computer must be version 1 3 1 we currently do not support the use of WorldMaker 2000 with either version 1 2 2 or 1 4 beta versions of the JRE Install all of those simply by running the installation programs Starting up World Maker 2000 World Maker 2000 can simply be started by activating the program WorldMaker 2000 in the programs section of the start menu This would start up a dialogue requesting that you select either the Chinese or the English version and to see if you wish to use the single player or the multi player version If you select the single player version you would then be taken to the main dialogue
13. onnection The responsibilities of a session owner If you were the one who set up a session you will have the privileges for the session owner The session owner has the following rights responsibilities e Authorise refuse admission for new entrants to a session e Control the running of the session start stop pause control speed of the model Only the session owner has control over the saving and loading of Worlds and hence all the World files that need to be used in a session must be on the local drives for the session owner If the session owner leaves or his her connection is reset the session will end Chat Window A very simple no frills chat window is available for communicating with other people in your session IRC commands are not available for use with this chat window CITE University of Hong Kong Page 4 12 20 2001 WorldMaker 2000 User Manual CITE University of Hong Kong Page 5 12 20 2001 WorldMaker 2000 User Manual How to use WorldMaker for modelling purposes The Concept of the World The modelling environment in WorldMaker 2000 is based around a World which consists both of the map where the foreground and background objects are placed as well as the rules governing the interactions and actions of these objects The size of this is defined when a new world is created The Main Interface The main interface contains all the controls used for the manipulation of worlds and other co
14. rsity of Hong Kong Page 12 20 2001 WorldMaker 2000 User Manual Use the tabs on the object lists to toggle between the foreground and background editing interfaces y tr Create object tool allows you to select an existing icon edit it using the icon editing tool see separate section and create new objects from that ib Delete object tool this allows you to delete an object All instances of that object and all rules involving that object will be deleted at the same time so please use carefully as there is no automatic mechanism for undoing that change In multi player mode please note that you need to have been given lock access to the tool see below before you could do so Icon editing tool When you enter the object creation tool you would find that there is an Edit image option which you could use to edit the image that you have already selected fe4 Create object PEt Te EE EE EE EE dii TEE Pee ee Tali Recent 4 q a a a E a EEEL A U a a E S a This tool can be used to modify existing objects Use the zoom in and zoom out buttons to zoom in out of the object Otherwise the editing is done by replacing what is in each pixel by whatever you have selected the rubber selection would select a transparent colour whilst if you selected CITE University of Hong Kong Page 8 12 20 2001 WorldMaker 2000 User Manual one of the colours on the palette the pixel you click
15. to be To define a larger world than you need would degrade performance Please note that you cannot change this without recreating the world so think carefully Open world allows you to open a saved world from the drives on your workstation i Save world allows you to save a world onto your workstation Share Screen Ge This option allows you to view the entire screen as displayed on the monitor of another participant in your session This is very useful for situations where for instance someone wishes to demonstrate techniques or when one would like to see what one s colleague s up to In that dialogue request view would allow you to see the screen as displayed on another user s monitor To stop viewing what they are doing you may select Cancel View Object creation tools There are two types of objects that can be used in WorldMaker foreground and background objects Foreground objects would obviously lie on top of any background object on the display but otherwise they can be treated as one and the same Each object has to have an associated icon This icon can be one that has been pre loaded which you could edit using the icon editing tool just click on the icon to select that or you could import an icon that is already on your hard disk by using the import image from file option The specification for such icons is that they must be in GIF format and their size must be 32 x 32 pixels CITE Unive
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