From 5d846b3914a032042d0549fd18724efcbf7d9bf9 Mon Sep 17 00:00:00 2001
From: "Juan J. Martinez" <jjm@usebox.net>
Date: Thu, 25 May 2023 22:21:36 +0100
Subject: Finalised the HUD

---
 game/main.asm | 107 +++++++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 102 insertions(+), 5 deletions(-)

(limited to 'game/main.asm')

diff --git a/game/main.asm b/game/main.asm
index 253c812..bb2c97e 100644
--- a/game/main.asm
+++ b/game/main.asm
@@ -123,6 +123,12 @@ init_game:
     ldi
     ldi
 
+    ; initial lives
+    ld y, 3
+    ld x, <lives
+    ld a, >lives
+    ld [a : x], y
+
     halt
 
     call clear_screen
@@ -134,7 +140,55 @@ init_game:
 ; Update the HUD (score, lives, etc)
 ;
 update_hud:
-    ; erase
+    ; lives
+
+    ; settings mode
+    ld y, 128
+    ld b, 0xb0
+    port b, y
+
+    ; setup
+    inc b
+
+    ; addr
+    ld y, <lives_sprite
+    port b, y
+    ld y, >lives_sprite
+    port b, y
+
+    ; x, y
+    ld y, 4
+    port b, y
+    port b, y
+
+    ; w
+    ld y, 13
+    port b, y
+    ; h
+    ld y, 8
+    port b, y
+
+    ; blit
+    dec b
+    ; write, transparent
+    ld y, 3
+    port b, y
+
+    ; digits
+    ld x, 1
+    push x
+
+    ; addr of the BCD number
+    ld x, <lives
+    ld a, >lives
+    ; where we want the text
+    ld b, 13
+    ld y, 4
+
+    call put_bcd_number
+    pop x
+
+    ; erase score
 
     ; settings mode
     ld y, 128
@@ -177,7 +231,7 @@ update_hud:
     ld y, 1
     port b, y
 
-    ; 6 digits
+    ; digits
     ld x, 6
     push x
 
@@ -189,8 +243,44 @@ update_hud:
     ld y, 4
 
     call put_bcd_number
-
     pop x
+
+    ; small title
+
+    ; settings mode
+    ld y, 128
+    ld b, 0xb0
+    port b, y
+
+    ; setup
+    inc b
+
+    ; addr
+    ld y, <title_small
+    port b, y
+    ld y, >title_small
+    port b, y
+
+    ; x
+    ld y, 52
+    port b, y
+    ; y
+    ld y, 4
+    port b, y
+
+    ; w
+    ld y, 24
+    port b, y
+    ; h
+    ld y, 8
+    port b, y
+
+    ; blit
+    dec b
+    ; write, transparent
+    ld y, 3
+    port b, y
+
     ret
 
 ;
@@ -387,6 +477,8 @@ hiscore:
     .db 0, 1, 0, 0, 0, 0
 score:
     .db 0, 0, 0, 0, 0, 0
+lives:
+    .db 0
 
 ;
 ; entity data
@@ -409,6 +501,8 @@ player_coord:
     .db ET_END
 
 ; sprite data
+lives_sprite:
+    .incpng "assets/lives.png"
 player_sprite:
     .incpng "assets/player.png"
 pbullet_sprite:
@@ -463,11 +557,14 @@ stars:
 ; menu data
 title:
     .incpng "assets/title.png"
-font:
-    .incpng "assets/font.png"
+title_small:
+    .incpng "assets/title_small.png"
 usebox:
     .incpng "assets/usebox.png"
 
+font:
+    .incpng "assets/font.png"
+
 ; texts
 press_start_text:
     .str "PRESS START!"
-- 
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