Links Awakening: Implement New Game (#1334)

Adds Link's Awakening: DX. Fully imports and forks LADXR, with permission - https://github.com/daid/LADXR

worlds/ladx/LADXR/locations/startItem.py

@@ -0,0 +1,38 @@
+from .itemInfo import ItemInfo
+from .constants import *
+from .droppedKey import DroppedKey
+from ..assembler import ASM
+from ..utils import formatText
+from ..roomEditor import RoomEditor
+
+
+class StartItem(DroppedKey):
+    # We need to give something here that we can use to progress.
+    # FEATHER
+    OPTIONS = [SWORD, SHIELD, POWER_BRACELET, OCARINA,  BOOMERANG, MAGIC_ROD, TAIL_KEY, SHOVEL, HOOKSHOT, PEGASUS_BOOTS, MAGIC_POWDER, BOMB]
+
+    MULTIWORLD = False
+
+    def __init__(self):
+        super().__init__(0x2A3)
+        self.give_bowwow = False
+
+    def configure(self, options):
+        if options.bowwow != 'normal':
+            # When we have bowwow mode, we pretend to be a sword for logic reasons
+            self.OPTIONS = [SWORD]
+            self.give_bowwow = True
+        if options.randomstartlocation and options.entranceshuffle != 'none':
+            self.OPTIONS.append(FLIPPERS)
+
+    def patch(self, rom, option, *, multiworld=None):
+        assert multiworld is None
+
+        if self.give_bowwow:
+            option = BOWWOW
+            rom.texts[0xC8] = formatText("Got BowWow!")
+
+        if option != SHIELD:
+            rom.patch(5, 0x0CDA, ASM("ld a, $22"), ASM("ld a, $00"))  # do not change links sprite into the one with a shield
+
+        super().patch(rom, option)