Check available money for building minefields.

1 files changed, 6 insertions, 4 deletions

diff --git a/rules.js b/rules.js
index adbf7d5..68c7181 100644
--- a/rules.js
+++ b/rules.js
@@ -6166,12 +6166,14 @@ states.minefield = {
 	prompt() {
 		view.prompt = `Buildup: Build a minefield.`
 		let mfs = friendly_minefields()
-		let net = friendly_buildup_network()
 		if (mfs.length >= 2)
 			gen_action('dismantle')
-		for (let x of all_hexes)
-			if (net[x] && !is_battle_hex(x) && !set_has(mfs, x))
-				gen_action_hex(x)
+		if (available_bps() >= 15) {
+			let net = friendly_buildup_network()
+			for (let x of all_hexes)
+				if (net[x] && !is_battle_hex(x) && !set_has(mfs, x))
+					gen_action_hex(x)
+		}
 	},
 	dismantle() {
 		push_undo()