diff --git a/Tables.py b/Tables.py
index 272a0f93..15f98f58 100644
--- a/Tables.py
+++ b/Tables.py
@@ -59,4 +59,25 @@ door_pair_offset_table = {
     0xc1: 0x01c2, 0xc2: 0x01ca, 0xc3: 0x01d2, 0xc4: 0x01d9, 0xc5: 0x01da, 0xc6: 0x01dd, 0xc7: 0x01e3, 0xc8: 0x01e6,
     0xc9: 0x01e7, 0xcb: 0x01ec, 0xcc: 0x01ed, 0xce: 0x01f0, 0xd0: 0x01f1, 0xd1: 0x01f3, 0xd2: 0x01f7, 0xd5: 0x01f8,
     0xd6: 0x01fa, 0xd8: 0x01fd, 0xd9: 0x0200, 0xda: 0x0203, 0xdb: 0x0204, 0xdc: 0x0206, 0xe0: 0x020
-}
\ No newline at end of file
+}
+
+multiply_lookup = {
+    0x08: {0x8: 1, 0x10: 2, 0x18: 3, 0x20: 4, 0x30: 6, 0x50: 0xa, 0xa0: 0x14},
+    0x10: {0x8: 1, 0x10: 1, 0x18: 3, 0x20: 2, 0x30: 3, 0x50: 0x4, 0xa0: 0xa},
+    0x18: {0x8: 1, 0x10: 2, 0x18: 1, 0x20: 4, 0x30: 2, 0x50: 0xa, 0xa0: 0x14},
+    0x20: {0x8: 1, 0x10: 1, 0x18: 3, 0x20: 1, 0x30: 3, 0x50: 5,   0xa0: 5},
+    0x30: {0x8: 1, 0x10: 1, 0x18: 1, 0x20: 2, 0x30: 1, 0x50: 5,   0xa0: 0xa},
+    0x50: {0x8: 1, 0x10: 1, 0x18: 3, 0x20: 2, 0x30: 3, 0x50: 1,   0xa0: 2},
+    0xa0: {0x8: 1, 0x10: 1, 0x18: 3, 0x20: 1, 0x30: 3, 0x50: 1,   0xa0: 1},
+}
+
+divisor_lookup = {
+    0x08: {0x8: 1,    0x10: 1,   0x18: 1,    0x20: 1, 0x30: 1,   0x50: 1, 0xa0: 1},
+    0x10: {0x8: 2,    0x10: 1,   0x18: 2,    0x20: 1, 0x30: 1,   0x50: 1, 0xa0: 1},
+    0x18: {0x8: 3,    0x10: 3,   0x18: 1,    0x20: 3, 0x30: 1,   0x50: 3, 0xa0: 3},
+    0x20: {0x8: 4,    0x10: 2,   0x18: 4,    0x20: 1, 0x30: 2,   0x50: 2, 0xa0: 1},
+    0x30: {0x8: 6,    0x10: 3,   0x18: 2,    0x20: 3, 0x30: 1,   0x50: 3, 0xa0: 3},
+    0x50: {0x8: 0xa,  0x10: 4,   0x18: 0xa,  0x20: 5, 0x30: 5,   0x50: 1, 0xa0: 1},
+    0xa0: {0x8: 0x14, 0x10: 0xa, 0x18: 0x14, 0x20: 5, 0x30: 0xa, 0x50: 2, 0xa0: 1},
+}
+
diff --git a/asm/doortables.asm b/asm/doortables.asm
index d4dd762b..38043199 100644
--- a/asm/doortables.asm
+++ b/asm/doortables.asm
@@ -488,4 +488,54 @@ dw $0000
 dw $0000,$0000
 dw $0000
 dw $0000,$0000,$0000,$0000
-dw $ffff ; indicates the end - we can drop this
\ No newline at end of file
+dw $ffff ; indicates the end - we can drop this
+
+; Edge Transition Table
+org $27C500 ;ends around 27C5F0
+NorthOpenEdge:
+db $80,$00,$11, $80,$00,$11, $80,$00,$11, $80,$00,$11
+db $80,$00,$11, $80,$00,$11, $80,$00,$11, $80,$00,$11
+db $80,$00,$11, $80,$00,$11, $80,$00,$11
+SouthOpenEdge:
+db $80,$00,$11, $80,$00,$11, $80,$00,$11, $80,$00,$11
+db $80,$00,$11, $80,$00,$11, $80,$00,$11, $80,$00,$11
+db $80,$00,$11, $80,$00,$11, $80,$00,$11
+WestOpenEdge:
+db $80,$00,$11, $80,$00,$11, $80,$00,$11
+db $80,$00,$11, $80,$00,$11, $80,$00,$11
+db $80,$00,$11, $80,$00,$11, $80,$00,$11
+EastOpenEdge:
+db $80,$00,$11, $80,$00,$11, $80,$00,$11
+db $80,$00,$11, $80,$00,$11, $80,$00,$11
+db $80,$00,$11, $80,$00,$11, $80,$00,$11
+; Edge Info Table (Midpoint, Width, Min Coord)
+NorthEdgeInfo:
+db $a8,$10,$a0, $2c,$08,$28 ;HC
+db $b8,$20,$a8 ; DP West Wing
+db $38,$20,$28, $f8,$a0,$a8, $b8,$20,$a8 ; DP Main
+db $78,$20,$68 ; DP East Wing
+db $f8,$10,$f0, $7c,$18,$70 ; TT Lobby
+db $74,$18,$68, $f8,$10,$f0 ; TT Compass
+SouthEdgeInfo:
+db $a8,$10,$a0, $2c,$08,$28 ; HC
+db $b8,$20,$a8 ; DP Sandworm
+db $38,$20,$28, $f8,$a0,$a8, $b8,$20,$a8 ; DP North Hall & Dead End
+db $78,$20,$68 ; DP Arrow Pot
+db $f8,$10,$f0, $7c,$18,$70 ; TT Ambush
+db $74,$18,$68, $f8,$10,$f0 ; TT BK Corner
+WestEdgeInfo:
+db $78,$30,$60 ; TT Attic
+db $40,$20,$30 ; DP North Hall
+db $40,$20,$30 ; DP Arrow Pot
+db $84,$18,$78, $68,$10,$60 ; HC South
+db $a0,$a0,$50 ; DP East Wing
+db $58,$50,$30, $98,$50,$70 ; TT BK Corner
+db $58,$50,$30 ; TT Compass
+EastEdgeInfo:
+db $78,$30,$60 ; TT Attic
+db $40,$20,$30 ; DP Sandworm
+db $40,$20,$30 ; DP North Hall
+db $68,$10,$60, $84,$18,$78 ; HC Guards
+db $a0,$a0,$50 ; DP Main Lobby
+db $58,$50,$30, $98,$50,$70 ; TT Ambush
+db $58,$50,$30 ; TT Nook
\ No newline at end of file
diff --git a/asm/edges.asm b/asm/edges.asm
new file mode 100644
index 00000000..e69de29b