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- LIFE
- A Simulation of the Famous Game of Life
- For Windows 3.0
-
- Version 1.1 May 27, 1991
- Copyright 1991 Tom Wheeler
- [72037,1742]
-
-
- The programs and documentation contained herein are hereby placed in the
- public domain. You may use any portion of this material as you see fit
- for your own personal use provided no part of anything contained herein
- is used or distributed commercially.
-
- This material may not be distributed unless all modules listed below
- are included in the final distributed version:
-
- HAND CUR 326 05-15-91 9:10p
- LIFE C 35455 05-27-91 5:48p
- LIFE DEF 410 05-18-91 9:30p
- LIFE EXE 35984 05-27-91 5:48p
- LIFE H 571 05-18-91 2:53p
- LIFE ICO 766 05-14-91 8:42p
- LIFE MAK 2267 05-27-91 5:11p
- LIFE RC 2593 05-22-91 10:33p
- README TXT 5725 05-29-91 8:38p
-
- No claim of suitability of use is made for these programs. The user is
- solely responsible to determine whether or not these programs perform
- properly on any given computer system.
-
- This program provides a simulation of Life for Windows 3.0. This is one
- of the more common simulations available in one form or another for just
- about every computer ever made. The algorithm used to manipulate the
- cells was borrowed and heavily modifed from a Turbo Pascal for Windows
- program available on Compuserve in the Borland Forum named "PLIFE".
-
- The rules of the basic simulation are simple. If a "dead" cell has exactly 3
- neighbor cells, it is born (displayed as a green rectangle). If an "alive"
- cell should ever have less than 2 neighbors it dies (of lonliness, I presume).
- If an "alive" cell should ever have more than 3 neighbors it also dies
- (overcrowding). The simulation proceeds from cycle to cycle, calculating
- and updating the status of each cell displayed on the screen.
-
- This version adds a twist to the basic simulation. Every ten cycles that
- a cell is alive, it ages (transforms to a different state indicated by a
- change in color). When a cell becomes too old (after 8 age cycles), it dies
- off regardless of the above conditions.
-
- The world that the cells exist within consists of a 100 X 100 grid. The grid
- does not wrap, that is, cells at the far left do not know about cells at the
- far right and cells at the top do not know about cells at the bottom.
-
- When first started, an empty cell matrix is displayed. You may place individual
- cells wherever you like by positioning the hand cursor over an empty cell and
- clicking the left mouse button. After placing the desired cells, cycle the
- matrix by selecting "Start" or "Step" from the "Run" menu. Cells may be
- added or deleted at any time by using the mouse as above. If you do not place
- any cells, this program will randomly fill the grid with "alive" cells for
- you.
-
- To summarize functions available:
-
- RUN HOTKEY DESCRIPTION
- ---------- -------- ---------------------------------------------------
- Start ^R Starts automatic cycling of the matrix. The matrix
- cycles when a predefined timer expires.
- Stop ^R Stops automatic cycling of the matrix.
- Step ^E Cycles the matrix once. Only available when the
- matrix is not in automatic cycle mode.
-
- OPTIONS HOTKEY DESCRIPTION
- ---------- -------- ---------------------------------------------------
- Clear ^C Clears the matrix. If it is automatic cycle mode,
- it turns this feature off as well.
- Grid On ^G Turns Gridlines ON.
- Grid Off ^G Turns Gridlines OFF.
- Set Timer ^T Allows entry of a different time value for the cycle
- timer. Valid entries are 100-999 (milliseconds).
- Small Grid ^S Displays the smallest possible grid size (zooms out)
- Medium Grid ^M Displays the default grid size
- Large Grid ^L Displays the largest possible grid size (zooms in)
-
- You may move around the matrix by using the scroll bars and zooming in and
- out (also up, down, left, right, pgup, and pgdown keys work). In the interest
- of run time efficiency (speed), only the cells actually displayed are cycled.
- Therefore, any cells defined but not displayed remain stationary. If you move
- to an uninhabitated area while in automatic cycle mode, the program will
- automatically fill it with a random pattern of cells.
-
- NOTE: When in automatic cycle mode with the window zoomed to full screen and
- Small Grid size selected, this program can take a lot of CPU time to run
- (even on a fast 386/486 machine). It is best to find a combination of grid
- size and window size that does not hog a lot of system time. The default
- size does not seem to be too much of a burden even on slower PCs. You can
- also increase the timer value to > 500 milliseconds to decrease the amount of
- overhead this program requires.
-
- This program was written as an experiment to try out various Windows API
- functions, primarily the use of GDI Graphics calls and Scroll Bar manipulation.
- The make file was generated using the PWB (Programmers Work Bench) included with
- Microsoft C 6.00a. The program was compiled and linked with Microsoft C 6.00a
- and Link 5.1.
-
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