game mechanics. closes #13

2 files changed, 64 insertions, 6 deletions

diff --git a/reversing_game_mechanics/game_mechanics.txt b/reversing_game_mechanics/game_mechanics.txt
index 9c64805..2488481 100644
--- a/reversing_game_mechanics/game_mechanics.txt
+++ b/reversing_game_mechanics/game_mechanics.txt
@@ -1,8 +1,54 @@
-can eject: if size >= 60 i.e. mass >= 35 
-eject makes me lose 16 mass
-eject distance is between (600+my.size) and (700+my.size), about 10-15 deg deviation
-can eat ejected mass if mass >= 18 i.e. size >= 43
+Created 2015-09-01, with data between 0 and 2 weeks old.
 
-cell can eat us, if their size/mass(??) is at least 1.25* our size/mass
+Units used:
+	distances, sizes are measured in raw agar.io coordinates.
+	times are measured in frames. The game ran at 27-28 FPS at the time
+		where this document was created
+	speeds are measured in distance / number of frames
+
+
+
+cellspeed = 86.05 / cellsize**0.45
 
 zoom level is 369.399 * sum(own_cells.size) ** 0.431776
+
+ejecting mass:
+	prerequisite: size >= 60, i.e. mass >= 35
+	you will lose 16 mass, but only gain 12 mass if you eat the blob
+	one can eat ejected mass if mass >= 18 i.e. size >= 43
+
+	75% of the ejects had a deviation smaller than 0.39 rad = 22.16 deg
+	from the original moving direction of the shooting cell
+
+	they fly 44-45px, starting from shooting cell's border.
+
+splitting:
+	75% of the splits had a deviation smaller than 0.02 rad = 1.19 deg
+	from the original moving direction of the parent
+
+	flight distance: unknown, somewhere between 100 - 650, max = 1205
+
+	re-union will usually become possible somewhere after 745 - 790 frames
+		this means that your cells are possible to glide into each
+		other. depending on your movement pattern they will actually
+		merge sooner or later.
+
+feeding viruses:
+	75% of the splits had a deviation smaller than 0.00 rad = 0.11 deg
+	from the ejected mass movement vector.
+
+	maximum distance is 580 from the midpoint of the parent virus.
+	not sure about the minimum (too few data), but probably also 580?
+
+	Viruses can have the following sizes:
+		100, 106, 113, 119, 125, 131, 136.
+		Sometimes 141 is also observed, but those viruses will split
+		almost instantly (bug in the server software?)
+	i.e., feed a virus with size 100 6 times to maximum size, and one more
+	time to make it duplicate.
+
+eating:
+	a cell can eat us, if their size/mass(??) is at least 1.25* our size/mass
+	a cell eats another, if the smaller one's midpoint is within the
+	larger one's circle (with radius = size)
+
diff --git a/reversing_game_mechanics/stuff.txt b/reversing_game_mechanics/stuff.txt
index 29a5248..fbbddc4 100644
--- a/reversing_game_mechanics/stuff.txt
+++ b/reversing_game_mechanics/stuff.txt
@@ -52,6 +52,18 @@ EJECT/SPLIT DIRECTIONS
 	ejected mass eject/split direction deviations: mean = -0.021378484138331356, stddev=0.730695490707546, ndata=1585
 		75% of the splits had a deviation smaller than 0.39 rad = 22.16 deg
 
+	virus eject/split direction deviations: mean = -0.16497762078310707, stddev=0.07294211158929148, ndata=5
+		75% of the splits had a deviation smaller than 0.25 rad = 14.41 deg
+		(wrt "emitted mass begin -- parent virus")
+
+	virus2 eject/split direction deviations: mean = -0.001211356391619578, stddev=0.0038334565337591105, ndata=5
+		75% of the splits had a deviation smaller than 0.00 rad = 0.11 deg
+		(wrt "emitted mass flight direction")
+
+	virus3 eject/split direction deviations: mean = -0.13739240722341658, stddev=0.056773374975376475, ndata=5
+		75% of the splits had a deviation smaller than 0.21 rad = 11.82 deg
+		(wrt "emitter of the mass -- parent virus")
+
 
 
 
@@ -77,7 +89,7 @@ EJECT/SPLIT DISTANCES
 	virus                        meann = 42.666666666666664, stddevn =6.879922480183431
 		75% of the distances lie in the interval 510.53 plusminus 363.80
 		88% of the distances lie in the interval 510.53 plusminus 436.56
-		max = 580.08
+		max = 580.08 (ndata = 13)
 		75% of the flight lengths lie in the interval 45.00 plusminus 10.00
 		77% of the flight lengths lie in the interval 45.00 plusminus 12.00