From: Lukas Krickl <lukas@krickl.dev>
Date: Tue, 11 Nov 2025 21:13:49 +0000 (+0100)
Subject: tiles: added tile flags
X-Git-Url: https://git.krickl.dev/?a=commitdiff_plain;h=fff244873974b9e44bbbeeaf084ef6f8c3f5d41d;p=gbrg%2F.git

tiles: added tile flags
---

diff --git a/src/defs.s b/src/defs.s
index 4547f27..3f86f82 100644
--- a/src/defs.s
+++ b/src/defs.s
@@ -92,6 +92,15 @@
 .de TO_PLAYER, 1
 .de TO_ENEMY, 1
 
+	; tile flags
+.se 1
+	; set when the tile gained resources
+	; this tick
+.de TF_INC, 1
+	; set when the tile lost resources 
+	; this tick
+.de TF_DEC, 2
+
 	; tile struct
 .se 0 
 .de t_type, 1
diff --git a/src/tiles.s b/src/tiles.s
index 86c4a19..a3222dd 100644
--- a/src/tiles.s
+++ b/src/tiles.s
@@ -268,6 +268,9 @@ tile_update_hive:
 	; inputs:
 	;		de: tile
 tile_update_food:
+	inc de ; flags
+	ld a, TF_INC
+	ld [de], a
 	ret
 	
 	; maps from tile ids