From 1b754178c52fd9efbc24c3a01070945334ecd442 Mon Sep 17 00:00:00 2001
From: David Allemang <david.allemang@kitware.com>
Date: Tue, 28 Jul 2026 10:17:01 -0400
Subject: [PATCH] make pistons instantly extend for BED order demo

---
 content/interference-fixes.typ | 318 ++++++++++++---------------------
 1 file changed, 115 insertions(+), 203 deletions(-)

diff --git a/content/interference-fixes.typ b/content/interference-fixes.typ
index 0bbc9114..5445085c 100644
--- a/content/interference-fixes.typ
+++ b/content/interference-fixes.typ
@@ -1,4 +1,4 @@
-#import "/lib.typ": diorama, example, todo
+#import "/lib.typ": diorama, example, note, todo
 
 #show raw.where(lang: "mc-diorama"): it => diorama(autoplay: true, loop: true, theta: 160, phi: 20, it.text)
 
@@ -207,9 +207,10 @@ cmp rep rep cmp cmp rep rep
 == Block Event Delay
 
 Block Event Delay is not a complete substitute for tilesets, but it can significantly reduce the
-required length of tilesets. It is based on a behavior of piston push lists which repeats a given
-global order for multiple components. A smaller tileset can set a 'template' ordering for a few
-components, then BED can trivially 'repeat' that order for a subsequent set of components.
+required length of tilesets and compact repetetive systems. It is based on a behavior of piston push
+lists which repeats a given global order for multiple components. A smaller tileset can set a
+'template' ordering for a few components, then BED can trivially 'repeat' that order for a
+subsequent set of components.
 
 #show raw.where(lang: "mc-diorama"): it => diorama(
   autoplay: true,
@@ -346,12 +347,13 @@ prefix | BED -->
   autoplay: true,
   loop: true,
   radius: 9,
-  phi:30,
+  phi: 30,
   theta: 110,
   speed: 0.4,
   it.text,
 )
 
+
 ```mc-diorama
 
 p  0  0  0 light_gray_terracotta
@@ -465,7 +467,7 @@ p 1 1 4 power=14
 p 2 1 4 power=13
 p 3 1 4 power=12
 p 4 1 4 power=11
-t 9
+t 10
 p 5 0 8 powered=true
 p 0 1 8 power=11
 p 1 1 8 power=12
@@ -473,59 +475,59 @@ p 2 1 8 power=13
 p 3 1 8 power=14
 p 4 1 8 power=15
 
-t 10
-p 4 0 -1 extended=true
-p 4 -0.5 -1 piston_head type=normal facing=down short=true
 t 11
-p 4 0 3 extended=true
-p 4 -0.5 3 piston_head type=normal facing=down short=true
+p 4  0 -1 extended=true
+p 4 -1 -1 piston_head type=normal facing=down short=false
 t 12
-p 4 0 7 extended=true
-p 4 -0.5 7 piston_head type=normal facing=down short=true
+p 4  0  3 extended=true
+p 4 -1  3 piston_head type=normal facing=down short=false
 t 13
-p 3 -1 -1 extended=true
-p 3 -0.5 -1 piston_head type=normal facing=up short=true
+p 4  0  7 extended=true
+p 4 -1  7 piston_head type=normal facing=down short=false
 t 14
-p 3 -1 3 extended=true
-p 3 -0.5 3 piston_head type=normal facing=up short=true
+p 3 -1 -1 extended=true
+p 3  0 -1 piston_head type=normal facing=up short=false
 t 15
-p 3 -1 7 extended=true
-p 3 -0.5 7 piston_head type=normal facing=up short=true
+p 3 -1  3 extended=true
+p 3  0  3 piston_head type=normal facing=up short=false
 t 16
-p 2 -1 -1 extended=true
-p 2 -0.5 -1 piston_head type=normal facing=up short=true
+p 3 -1  7 extended=true
+p 3  0  7 piston_head type=normal facing=up short=false
 t 17
-p 2 -1 3 extended=true
-p 2 -0.5 3 piston_head type=normal facing=up short=true
+p 2 -1 -1 extended=true
+p 2  0 -1 piston_head type=normal facing=up short=false
 t 18
-p 2 -1 7 extended=true
-p 2 -0.5 7 piston_head type=normal facing=up short=true
+p 2 -1  3 extended=true
+p 2  0  3 piston_head type=normal facing=up short=false
 t 19
-p 1 -1 -1 extended=true
-p 1 -0.5 -1 piston_head type=normal facing=up short=true
+p 2 -1  7 extended=true
+p 2  0  7 piston_head type=normal facing=up short=false
 t 20
-p 1 -1 3 extended=true
-p 1 -0.5 3 piston_head type=normal facing=up short=true
+p 1 -1 -1 extended=true
+p 1  0 -1 piston_head type=normal facing=up short=false
 t 21
-p 1 -1 7 extended=true
-p 1 -0.5 7 piston_head type=normal facing=up short=true
+p 1 -1  3 extended=true
+p 1  0  3 piston_head type=normal facing=up short=false
 t 22
-p 0 -1 -1 extended=true
-p 0 -0.5 -1 piston_head type=normal facing=up short=true
+p 1 -1  7 extended=true
+p 1  0  7 piston_head type=normal facing=up short=false
 t 23
-p 0 -1 3 extended=true
-p 0 -0.5 3 piston_head type=normal facing=up short=true
+p 0 -1 -1 extended=true
+p 0  0 -1 piston_head type=normal facing=up short=false
 t 24
-p 0 -1 7 extended=true
-p 0 -0.5 7 piston_head type=normal facing=up short=true
-
+p 0 -1  3 extended=true
+p 0  0  3 piston_head type=normal facing=up short=false
 t 25
+p 0 -1  7 extended=true
+p 0  0  7 piston_head type=normal facing=up short=false
+
+t 26
 p -2 0 0 powered=false
 p -2 0 4 powered=false
-t 26
+t 27
 p 6 0 8 powered=false
 
-t 27
+t 28
 p -1 0 0 powered=false
 p 0 1 0 power=0
 p 1 1 0 power=0
@@ -533,7 +535,7 @@ p 2 1 0 power=0
 p 3 1 0 power=0
 p 4 1 0 power=0
 
-t 28
+t 29
 p -1 0 4 powered=false
 p 0 1 4 power=0
 p 1 1 4 power=0
@@ -541,7 +543,7 @@ p 2 1 4 power=0
 p 3 1 4 power=0
 p 4 1 4 power=0
 
-t 29
+t 30
 p 5 0 8 powered=false
 p 0 1 8 power=0
 p 1 1 8 power=0
@@ -549,197 +551,107 @@ p 2 1 8 power=0
 p 3 1 8 power=0
 p 4 1 8 power=0
 
-t 30
-p 4 -0.5 -1 air
-p 4 -1.0 -1 piston_head type=normal facing=down short=false
 t 31
-p 4 -0.5 3 piston_head air
-p 4 -1.0 3 piston_head type=normal facing=down short=false
-t 32
-p 4 -0.5 7 piston_head air
-p 4 -1.0 7 piston_head type=normal facing=down short=false
-t 33
-p 3 -0.5 -1 air
-p 3  0.0 -1 piston_head type=normal facing=up short=false
-t 34
-p 3 -0.5 3 piston_head air
-p 3  0.0 3 piston_head type=normal facing=up short=false
-t 35
-p 3 -0.5 7 piston_head air
-p 3  0.0 7 piston_head type=normal facing=up short=false
-t 36
-p 2 -0.5 -1 air
-p 2  0.0 -1 piston_head type=normal facing=up short=false
-t 37
-p 2 -0.5 3 piston_head air
-p 2  0.0 3 piston_head type=normal facing=up short=false
-t 38
-p 2 -0.5 7 piston_head air
-p 2  0.0 7 piston_head type=normal facing=up short=false
-t 39
-p 1 -0.5 -1 air
-p 1  0.0 -1 piston_head type=normal facing=up short=false
-t 40
-p 1 -0.5 3 piston_head air
-p 1  0.0 3 piston_head type=normal facing=up short=false
-t 41
-p 1 -0.5 7 piston_head air
-p 1  0.0 7 piston_head type=normal facing=up short=false
-t 42
-p 0 -0.5 -1 air
-p 0  0.0 -1 piston_head type=normal facing=up short=false
-t 43
-p 0 -0.5 3 piston_head air
-p 0  0.0 3 piston_head type=normal facing=up short=false
-t 44
-p 0 -0.5 7 piston_head air
-p 0  0.0 7 piston_head type=normal facing=up short=false
-
-t 45
 p 3 0 -2 powered=true
-t 46
+t 32
 p 3 0 2 powered=true
-t 47
+t 33
 p 3 0 6 powered=true
-t 48
+t 34
 p 2 0 -2 powered=true
-t 49
+t 35
 p 2 0 2 powered=true
-t 50
+t 36
 p 2 0 6 powered=true
-t 51
+t 37
 p 1 0 -2 powered=true
-t 52
+t 38
 p 1 0 2 powered=true
-t 53
+t 39
 p 1 0 6 powered=true
-t 54
+t 40
 p 0 0 -2 powered=true
-t 55
+t 41
 p 0 0 2 powered=true
-t 56
+t 42
 p 0 0 6 powered=true
 
+t 43
+p 4  0 -1 extended=false
+p 4 -1 -1 air
+t 44
+p 4  0  3 extended=false
+p 4 -1  3 air
+t 45
+p 4  0  7 extended=false
+p 4 -1  7 air
+t 46
+p 3 -1 -1 extended=false
+p 3  0 -1 air
+t 47
+p 3 -1  3 extended=false
+p 3  0  3 air
+t 48
+p 3 -1  7 extended=false
+p 3  0  7 air
+t 49
+p 2 -1 -1 extended=false
+p 2  0 -1 air
+t 50
+p 2 -1  3 extended=false
+p 2  0  3 air
+t 51
+p 2 -1  7 extended=false
+p 2  0  7 air
+t 52
+p 1 -1 -1 extended=false
+p 1  0 -1 air
+t 53
+p 1 -1  3 extended=false
+p 1  0  3 air
+t 54
+p 1 -1  7 extended=false
+p 1  0  7 air
+t 55
+p 0 -1 -1 extended=false
+p 0  0 -1 air
+t 56
+p 0 -1  3 extended=false
+p 0  0  3 air
 t 57
-p 4 -1.0 -1 air
-p 4 -0.5 -1 piston_head type=normal facing=down short=true
+p 0 -1  7 extended=false
+p 0  0  7 air
+
 t 58
-p 4 -1.0 3 air
-p 4 -0.5 3 piston_head type=normal facing=down short=true
-t 59
-p 4 -1.0 7 air
-p 4 -0.5 7 piston_head type=normal facing=down short=true
-t 60
-p 3  0.0 -1 air
-p 3 -0.5 -1 piston_head type=normal facing=up short=true
-t 61
-p 3  0.0 3 air
-p 3 -0.5 3 piston_head type=normal facing=up short=true
-t 62
-p 3  0.0 7 air
-p 3 -0.5 7 piston_head type=normal facing=up short=true
-t 63
-p 2  0.0 -1 air
-p 2 -0.5 -1 piston_head type=normal facing=up short=true
-t 64
-p 2  0.0 3 air
-p 2 -0.5 3 piston_head type=normal facing=up short=true
-t 65
-p 2  0.0 7 air
-p 2 -0.5 7 piston_head type=normal facing=up short=true
-t 66
-p 1  0.0 -1 air
-p 1 -0.5 -1 piston_head type=normal facing=up short=true
-t 67
-p 1  0.0 3 air
-p 1 -0.5 3 piston_head type=normal facing=up short=true
-t 68
-p 1  0.0 7 air
-p 1 -0.5 7 piston_head type=normal facing=up short=true
-t 69
-p 0  0.0 -1 air
-p 0 -0.5 -1 piston_head type=normal facing=up short=true
-t 70
-p 0  0.0 3 air
-p 0 -0.5 3 piston_head type=normal facing=up short=true
-t 71
-p 0  0.0 7 air
-p 0 -0.5 7 piston_head type=normal facing=up short=true
-
-t 72
-p 4  0.0 -1 extended=false
-p 4 -0.5 -1 air
-t 73
-p 4  0.0 3 extended=false
-p 4 -0.5 3 air
-t 74
-p 4  0.0 7 extended=false
-p 4 -0.5 7 air
-t 75
-p 3 -1.0 -1 extended=false
-p 3 -0.5 -1 air
-t 76
-p 3 -1.0 3 extended=false
-p 3 -0.5 3 air
-t 77
-p 3 -1.0 7 extended=false
-p 3 -0.5 7 air
-t 78
-p 2 -1.0 -1 extended=false
-p 2 -0.5 -1 air
-t 79
-p 2 -1.0 3 extended=false
-p 2 -0.5 3 air
-t 80
-p 2 -1.0 7 extended=false
-p 2 -0.5 7 air
-t 81
-p 1 -1.0 -1 extended=false
-p 1 -0.5 -1 air
-t 82
-p 1 -1.0 3 extended=false
-p 1 -0.5 3 air
-t 83
-p 1 -1.0 7 extended=false
-p 1 -0.5 7 air
-t 84
-p 0 -1.0 -1 extended=false
-p 0 -0.5 -1 air
-t 85
-p 0 -1.0 3 extended=false
-p 0 -0.5 3 air
-t 86
-p 0 -1.0 7 extended=false
-p 0 -0.5 7 air
-
-t 87
 p 3 0 -2 powered=false
-t 88
+t 59
 p 3 0 2 powered=false
-t 89
+t 60
 p 3 0 6 powered=false
-t 90
+t 61
 p 2 0 -2 powered=false
-t 91
+t 62
 p 2 0 2 powered=false
-t 92
+t 63
 p 2 0 6 powered=false
-t 93
+t 64
 p 1 0 -2 powered=false
-t 94
+t 65
 p 1 0 2 powered=false
-t 95
+t 66
 p 1 0 6 powered=false
-t 96
+t 67
 p 0 0 -2 powered=false
-t 97
+t 68
 p 0 0 2 powered=false
-t 98
+t 69
 p 0 0 6 powered=false
 
-t 100
-p 0 0 0 # slight delay before loop
+t 72
+p 0 0 0
 
 ```
 
+#note()[This isn't *exactly* correct because the pistons take 2gt to extend and retract, but it correctly explains the update order of the observers]
+
 == Single-Priority Loops