Pull a lot of engine out of main.asm

1 files changed, 37 insertions, 0 deletions

diff --git a/engine/items/tms.asm b/engine/items/tms.asm
new file mode 100755
index 00000000..b0cfd29c
--- /dev/null
+++ b/engine/items/tms.asm
@@ -0,0 +1,37 @@
+; tests if mon [$cf91] can learn move [$d0e0]
+TestMonMoveCompatibility: ; 1373e (4:773e)
+	ld a, [$cf91]
+	ld [$d0b5], a
+	call GetMonHeader
+	ld hl, W_MONHLEARNSET
+	push hl
+	ld a, [$d0e0]
+	ld b, a
+	ld c, $0
+	ld hl, TechnicalMachines
+.findTMloop
+	ld a, [hli]
+	cp b
+	jr z, .TMfoundLoop
+	inc c
+	jr .findTMloop
+.TMfoundLoop
+	pop hl
+	ld b, $2  ; read corresponding bit from TM compatibility array
+	ld a, $10
+	jp Predef ; indirect jump to HandleBitArray (f666 (3:7666))
+
+; converts TM/HM number in $d11e into move number
+; HMs start at 51
+TMToMove: ; 13763 (4:7763)
+	ld a, [$d11e]
+	dec a
+	ld hl, TechnicalMachines
+	ld b, $0
+	ld c, a
+	add hl, bc
+	ld a, [hl]
+	ld [$d11e], a
+	ret
+
+INCLUDE "data/tms.asm"