From: Lukas Krickl <lukas@krickl.dev>
Date: Wed, 23 Oct 2024 16:00:44 +0000 (+0200)
Subject: wip: actor system
X-Git-Url: https://git.krickl.dev/?a=commitdiff_plain;h=da09ae811886b24a8415c8a005ce773ff73f1af7;p=gbrg%2F.git

wip: actor system
---

diff --git a/src/actor.s b/src/actor.s
new file mode 100644
index 0000000..7640f16
--- /dev/null
+++ b/src/actor.s
@@ -0,0 +1,38 @@
+; function ptrs for each actor type 
+; inputs:
+;   de: actor ptr
+actor_update_table:
+  dw actor_update_null
+  dw actor_update_dust
+
+actor_update_null:
+  ret
+
+actor_update_dust:
+  ret
+
+  ; updates all active actors from 
+  ; the current actor table
+actors_update:
+  ld b, ACTORS_MAX ; loop counter
+  ld de, actor_table 
+@loop: 
+
+  push de
+  push bc
+
+  ld hl, actor_update_table
+  ld a, [de] 
+  call call_tbl
+
+  pop bc
+  pop de
+@skip:
+  ; inc de sizeof(actor) times 
+.rep i, actor_size, 1, inc hl
+  dec b
+  ld a, b
+  cp a, 0
+  jr nz, @loop REL
+
+  ret
diff --git a/src/main.s b/src/main.s
index 43363f7..b6308cd 100644
--- a/src/main.s
+++ b/src/main.s
@@ -54,6 +54,7 @@ main:
 #include "map.s"
 #include "ui.s"
 #include "collision.s"
+#include "actor.s"
 
 #include "tiles.inc"
 
diff --git a/src/update.s b/src/update.s
index de56efb..0c314fc 100644
--- a/src/update.s
+++ b/src/update.s
@@ -7,6 +7,8 @@ update_game:
   ; update player
   ld hl, player
   call player_update
+  
+  call actors_update
 
   ret
 
diff --git a/src/wram.s b/src/wram.s
index 755b57f..673710c 100644
--- a/src/wram.s
+++ b/src/wram.s
@@ -17,8 +17,10 @@ curr_inputs: .adv 1
 prev_inputs: .adv 1
 
 ; actor type enum
-.se 1
-.de ACTOR_TYPE_PLAYER, 1
+.se 0
+  ; null actor type = nop
+.de ACTOR_TYPE_NULL, 1
+.de ACTOR_TYPE_DUST, 1
 
 ; struct actor 
 .se 0