Add overlord.asm with experimental castle soldier spawn path fn

Sprites/overlord.asm

@@ -0,0 +1,78 @@
+; Overlord Sprites and Events
+
+SummonGuards:
+{
+  LDA.l SWORD : CMP.b #$02 : BNE +
+    JSR Overlord_SpawnSoldierPath
+  +
+  RTL
+}
+
+; TimerB - Manages spawn rate
+Overlord_SpawnSoldierPath:
+{
+  LDA.w OverlordTimerB, X : CMP.b #$80 : BEQ .spawn
+    DEC.w OverlordTimerB, X
+    RTS
+  .spawn
+
+  ; JSL GetRandomInt : AND.b #$1F
+  ; CLC : ADC.b #$60 : STA.w OverlordTimerB, X
+  INC.w OverlordTimerB, X
+
+  STZ.b $00
+  LDY.b #$0F
+  .next_check
+  LDA.w SprState, Y : BEQ .skip
+    LDA.w SprType, Y : CMP.b #$41 : BNE .skip
+      INC.b $00
+  .skip
+  DEY
+  BPL .next_check
+
+  LDA.b $00 : CMP.b #$05 : BCS .exit
+    LDY.b #$0C
+    LDA.b #$41 ; SPRITE 41 - Blue Soldier
+    JSL Sprite_SpawnDynamically_slot_limited : BMI .exit
+
+    LDA.b $05 : STA.w SprX,Y
+    LDA.b $06 : STA.w SprXH,Y
+    LDA.b $07 : STA.w SprY,Y
+    LDA.b $08 : STA.w SprYH,Y
+
+    LDA.w .soldier_position_x, X : STA.w SprX,Y
+    LDA.w .soldier_position_y, X : STA.w SprY,Y
+    LDA.w $0B40,X : STA.w SprFloor,Y
+    LDA.b #$20 : STA.w SprTimerA,Y
+    LDA.w $0FB5 : STA.w SprMiscC,Y
+  .exit
+  RTS
+
+  .soldier_position_x
+  db $30, $C0, $30, $C0, $50, $A0
+
+  .soldier_position_y
+  db $70, $70, $98, $98, $C0, $C0
+
+  .soldier_direction
+  db $00, $01, $00, $01, $03, $03
+
+  .soldier_palette
+  db $09, $09, $09, $09, $07, $09
+}
+
+
+pushpc
+
+; Overlord04_Unused
+org $09B7AE
+  dw Overlord_KalyxoCastleGuards
+
+org $09F253
+Overlord_KalyxoCastleGuards:
+  JSL SummonGuards
+  RTS
+
+pullpc
+
+print "End of overlord.asm             ", pc