Merge pull request #30 from entrpntr/spring-cleaning

Spring Cleaning

1 files changed, 56 insertions, 0 deletions

diff --git a/engine/overworld/spawn_points.asm b/engine/overworld/spawn_points.asm
new file mode 100644
index 00000000..1b92b1e0
--- /dev/null
+++ b/engine/overworld/spawn_points.asm
@@ -0,0 +1,56 @@
+EnterMapSpawnPoint:
+	; loads the spawn point in wDefaultSpawnpoint
+	push hl
+	push de
+	ld a, [wDefaultSpawnpoint]
+	cp SPAWN_N_A
+	jr z, .spawn_n_a
+	ld l, a
+	ld h, 0
+	add hl, hl
+	add hl, hl
+	ld de, SpawnPoints
+	add hl, de
+	ld a, [hli]
+	ld [wMapGroup], a
+	ld a, [hli]
+	ld [wMapNumber], a
+	ld a, [hli]
+	ld [wXCoord], a
+	ld a, [hli]
+	ld [wYCoord], a
+.spawn_n_a
+	pop de
+	pop hl
+	ret
+
+IsSpawnPoint:
+; Checks if the map loaded in de is a spawn point.  Returns carry if it's a spawn point.
+	ld hl, SpawnPoints
+	ld c, 0
+.loop
+	ld a, [hl]
+	cp SPAWN_N_A
+	jr z, .nope
+	cp d
+	jr nz, .next
+	inc hl
+	ld a, [hld]
+	cp e
+	jr z, .yes
+
+.next
+	push bc
+	ld bc, 4 ; length of a spawn table entry
+	add hl, bc
+	pop bc
+	inc c
+	jr .loop
+
+.nope
+	and a
+	ret
+
+.yes
+	scf
+	ret