From f72884c4cb67bc3e59d0623c8ebe524f267a7f16 Mon Sep 17 00:00:00 2001
From: Lukas Krickl <lukas@krickl.dev>
Date: Sat, 5 Oct 2024 18:44:20 +0200
Subject: [PATCH] Added basic drawing routine for single filled and empty stats
 bar

---
 src/ui.s   | 32 ++++++++++++++++++++++++++++++++
 src/wram.s |  2 +-
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/src/ui.s b/src/ui.s
index 146cee5..67d35df 100644
--- a/src/ui.s
+++ b/src/ui.s
@@ -2,7 +2,11 @@
 #define TMP_ICON 0x37
 #define TATK_ICON 0x3B
 #define TDEF_ICON 0x3C
+
 #define THP_BAR_START 0x34
+#define THP_BAR_SINGLE_EMPTY 0x3E
+#define THP_BAR_SINGLE_FULL 0x3D
+
 
   ; sets up static parts of the UI
   ; all other parts are drawin by ui_draw
@@ -34,6 +38,24 @@ ui_init:
 
   ret
 
+  ; draw a single item only 
+  ; inputs:
+  ;   b: current bar value (either 1 or 0)
+  ;  hl: screen location
+ui_draw_bar_single:
+  ld a, b ; b = current 
+
+  cp a, 0 
+  jp z, @draw_empty
+@draw_full:
+  ld a, THP_BAR_SINGLE_FULL
+  ld [hl+], a
+  ret
+@draw_empty:
+  ld a, THP_BAR_SINGLE_EMPTY
+  ld [hl+], a
+  ret
+
   ; draws a UI bar
   ; the bar will be filled up to hp/mp 
   ; al others will be empty
@@ -41,8 +63,18 @@ ui_init:
   ;   hl: screen location
   ;   [de]: ptr to hp/mp where hp/mp max is [de+1]
 ui_draw_bar:
+  ld a, [de] ; load non-max value 
+  inc de ; move to max value
+  ld b, a ; b = current value 
   
+  ; check if we only need a single obj 
+  ld a, [de] ; a = max value 
+
+  cp a, 1
+  jp c, ui_draw_bar_single
+  jp z, ui_draw_bar_single
 
+  ; first we draw the filled bar 
   ld a, THP_BAR_START
   ld [hl+], a
   inc a
diff --git a/src/wram.s b/src/wram.s
index de1c43c..cb3d596 100644
--- a/src/wram.s
+++ b/src/wram.s
@@ -32,7 +32,7 @@ actor_table: .adv ACTORS_MAX * actor_size
 
 #define PLAYER_DEFAULT_HP 3
 #define PLAYER_DEFAULT_MP 3
-#define PLAYER_DEFAULT_DEF 1
+#define PLAYER_DEFAULT_DEF 0
 #define PLAYER_DEFAULT_ATK 1
 
 ; struct player
-- 
2.30.2