From: Lukas Krickl <lukas@krickl.dev>
Date: Sun, 4 Jan 2026 15:20:42 +0000 (+0100)
Subject: sprite: Added overlay sprite def
X-Git-Url: https://git.krickl.dev/?a=commitdiff_plain;h=31972c7408e6f4b3e6a0f466d8fd88dc0aa3b3d4;p=gbrg%2F.git

sprite: Added overlay sprite def
---

diff --git a/src/defs.s b/src/defs.s
index 3b0875c..4c9cdd8 100644
--- a/src/defs.s
+++ b/src/defs.s
@@ -313,3 +313,18 @@
 .de dv_right, 2
 .de dv_size, 0
 
+
+#define OS_WIDTH 4
+#define OS_HEIGHT 4
+
+	; overlay sprite struct
+.se 0
+	; amount of sprite slots this overlay needs
+.de os_slots, 1
+.de os_y, 1
+.de os_x, 1
+	; all overlays are 4x4 tile ids
+	; ids of 0 are skipped and not rendered
+	; the coordinates are fixed
+.de os_data, (OS_WIDTH * OS_HEIGHT)
+.de os_size, 0
diff --git a/src/macros.inc b/src/macros.inc
index ed4979b..5bec092 100644
--- a/src/macros.inc
+++ b/src/macros.inc
@@ -240,3 +240,13 @@ $1:
 	.db $1, $2, $3, $4, $5
 	dw $6
 #endmacro
+
+	; defines an overlay sprite
+	; inputs:
+	;		$1: amount of slots
+	;		$2: y position
+	;		$3: x position
+	; should be followed by include of tilemap (OS_W*OS_H)
+#macro osdef
+	.db $1, $2, $3
+#endmacro
diff --git a/src/sprites.s b/src/sprites.s
index 057b2dc..e33b9bb 100644
--- a/src/sprites.s
+++ b/src/sprites.s
@@ -1,4 +1,5 @@
 	; this file contains rendering code for sprite overlays
 	; this can be e.g. weapons displayed in first person view
 
+osdef 6, 20, 20
 #include "sword.inc"