finish decompiling battle_ai.c (#16)

* partially decompile battle_ai.c up to tai60_unk

* nonmatching tai60_unk

* decompile more of battle_ai.c

* formatting

* finish porting battle_ai.c

* formatting

asm/calculate_base_damage.s

@@ -621,7 +621,7 @@ _08069A58:
 	bls _08069A60
 	b _08069BC2
 _08069A60:
-	ldr r0, =gUnknown_02024211
+	ldr r0, =gCritMultiplier
 	ldrb r1, [r0]
 	adds r4, r0, 0
 	cmp r1, 0x2
@@ -789,7 +789,7 @@ _08069BCA:
 	bhi _08069BD2
 	b _08069DD4
 _08069BD2:
-	ldr r0, =gUnknown_02024211
+	ldr r0, =gCritMultiplier
 	ldrb r1, [r0]
 	adds r4, r0, 0
 	cmp r1, 0x2
@@ -947,7 +947,7 @@ _08069CFC:
 	lsls r0, 24
 	cmp r0, 0
 	bne _08069DAC
-	ldr r2, =gUnknown_020243CC
+	ldr r2, =gBattleWeather
 	ldrh r1, [r2]
 	movs r0, 0x1
 	ands r0, r1