[Freeciv-Dev] Re: (PR#4387) The Return of the Rand() Moves

["Christian Knoke" <chrisk@xxxxxxxxx>]

<URL: http://bugs.freeciv.org/Ticket/Display.html?id=4387 >

On Sun, Mar 06, 2005 at 10:44:23AM -0800, Jason Short wrote:
> 
> <URL: http://bugs.freeciv.org/Ticket/Display.html?id=4387 >
> 
> > [per - Wed Mar 02 12:07:42 2005]:
> > 
> > This patch removes random movement in favour of not allowing movement if
> > you 1) do not have full movement points and 2) do not have enough movement
> > points to move into the target tile. I did some playtesting, and I must
> > say find the impact of this change very small. However, as you might
> > remember from previous discussions, its impact on the simplicity of other
> > code is great (not shown in this patch).
> 
> A more balanced way to choose might change (1) to "if you do not have at
> least 1 move point".

I add another suggestion for an alternative rule:

    "reach target if you have more than half of the movepoints required to
    enter terrain type"

Now we have 4 possible rules:

Subject: When does a unit reach a tile if act. MP < terrain request?


Rule A (current rule): reach target tile with random chance (act.MP/tile
        request) percent OR act. MP = full MP

Rule B: reach target only if act. MP >= tile request OR act.MP = full MP

Rule C: reach target only if act. MP >= tile request OR act. MP >= 1 MP

Rule D: reach target if act. MP > (tile request / 2) OR act. MP = full MP


I filled out a OO spreadsheet to see what it means.
        
Attached are movement.sxc, movement.html, and movement.txt
with similar content, for your convinience.

Design board once suggested to have the 50% threshold in Rule D as an
option.

Christian

-- 
Christian Knoke            * * *            http://cknoke.de
* * * * * * * * *  Ceterum censeo Microsoft esse dividendum.

movement.sxc
Description: OpenOffice Calc spreadsheet

Freeciv Movement Rules

Rule A (current rule): reach target tile with random chance (act.MP/tile request) percent OR act. MP = full MP

Rule B: reach target only if act. MP >= tile request OR act.MP = full MP

Rule C: reach target only if act. MP >= tile request OR act. MP >= 1 MP

Rule D: reach target if act. MP > (tile request / 2) OR act. MP = full MP

						Chance (%) to reach terrain (Rules A B C D)
						Road				Plains				Hills				Mountains
						0,3	0,3	0,3	0,3	1,0	1,0	1,0	1,0	2,0	2,0	2,0	2,0	3,0	3,0	3,0	3,0
Unit	MP	act. MP	full MP?	MP>=1?	Remarks	A	B	C	D	A	B	C	D	A	B	C	D	A	B	C	D
Tank	3	3	yes	yes		100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
	3	2,33	no	yes		100	100	100	100	100	100	100	100	100	100	100	100	78	0	100	100
	3	1,67	no	yes		100	100	100	100	100	100	100	100	84	0	100	100	56	0	100	100
	3	1	no	yes		100	100	100	100	100	100	100	100	50	0	100	0	33	0	100	0
	3	0,67	no	no		100	100	100	100	67	0	0	100	34	0	0	0	22	0	0	0
Dragoons	2	2	yes	yes		100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
	2	1,33	no	yes		100	100	100	100	100	100	100	100	67	0	100	100	44	0	100	0
	2	0,67	no	no		100	100	100	100	67	0	0	100	34	0	0	0	22	0	0	0
Musketeer	1	1	yes	yes		100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
	1	0,67	no	no		100	100	100	100	67	0	0	100	34	0	0	0	22	0	0	0
	1	0,33	no	no		100	100	100	100	33	0	0	0	17	0	0	0	11	0	0	0
Alpine Troops	1	1	yes	yes	IGNTER	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
	1	0,67	no	no		100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
	1	0,33	no	no		100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

   Freeciv Movement Rules

   Rule A (current rule): reach target tile with random chance (act.MP/tile
   request) percent OR act. MP = full MP

   Rule B: reach target only if act. MP >= tile request OR act.MP = full MP

   Rule C: reach target only if act. MP >= tile request OR act. MP >= 1 MP

   Rule D: reach target if act. MP > (tile request / 2) OR act. MP = full MP

         |  |    |    |      |       |Chance (%) to reach terrain (Rules A B C 
D)
         |  |    |    |      |       |     Road      |    Plains     |     
Hills     |   Mountains
         |  |    |    |      |       
|0,3|0,3|0,3|0,3|1,0|1,0|1,0|1,0|2,0|2,0|2,0|2,0|3,0|3,0|3,0|3,0 
Unit     |MP|act.|full|MP>=1?|Remarks|A  |B  |C  |D  |A  |B  |C  |D  |A  |B  |C 
 |D  |A  |B  |C  |D   
         |  | MP |MP? |      |       |   |   |   |   |   |   |   |   |   |   |  
 |   |   |   |   |
---------+--+----+----+------+-------+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---
Tank     |3 | 3  |yes | yes  |       
|100|100|100|100|100|100|100|100|100|100|100|100|100|100|100|100 
         |3 |2,33| no | yes  |       
|100|100|100|100|100|100|100|100|100|100|100|100| 78|  0|100|100 
         |3 |1,67| no | yes  |       |100|100|100|100|100|100|100|100| 84|  
0|100|100| 56|  0|100|100 
         |3 | 1  | no | yes  |       |100|100|100|100|100|100|100|100| 50|  
0|100|  0| 33|  0|100|  0 
         |3 |0,67| no |  no  |       |100|100|100|100| 67|  0|  0|100| 34|  0|  
0|  0| 22|  0|  0|  0 
Dragoons |2 | 2  |yes | yes  |       
|100|100|100|100|100|100|100|100|100|100|100|100|100|100|100|100 
         |2 |1,33| no | yes  |       |100|100|100|100|100|100|100|100| 67|  
0|100|100| 44|  0|100|  0 
         |2 |0,67| no |  no  |       |100|100|100|100| 67|  0|  0|100| 34|  0|  
0|  0| 22|  0|  0|  0 
Musketeer|1 | 1  |yes | yes  |       
|100|100|100|100|100|100|100|100|100|100|100|100|100|100|100|100 
         |1 |0,67| no |  no  |       |100|100|100|100| 67|  0|  0|100| 34|  0|  
0|  0| 22|  0|  0|  0 
         |1 |0,33| no |  no  |       |100|100|100|100| 33|  0|  0|  0| 17|  0|  
0|  0| 11|  0|  0|  0 
Alpine   |1 | 1  |yes | yes  |IGNTER 
|100|100|100|100|100|100|100|100|100|100|100|100|100|100|100|100 
Troops   |  |    |    |      |       |   |   |   |   |   |   |   |   |   |   |  
 |   |   |   |   |
         |1 |0,67| no |  no  |       
|100|100|100|100|100|100|100|100|100|100|100|100|100|100|100|100 
         |1 |0,33| no |  no  |       
|100|100|100|100|100|100|100|100|100|100|100|100|100|100|100|100