From bc3e6882e21acd7e92631111d9b5862fb28cf457 Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor@ccxvii.net>
Date: Sat, 3 Jun 2023 00:57:27 +0200
Subject: Re-evaluate control during removal ops, but still forbid daisy
 chaining.

---
 rules.js | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/rules.js b/rules.js
index 9b3e051..cbd7d0e 100644
--- a/rules.js
+++ b/rules.js
@@ -520,6 +520,13 @@ function update_presence_and_control() {
 	}
 }
 
+function update_operations_possible() {
+	game.possible = 0
+	for (let s of game.spaces)
+		if (is_present(s) || is_adjacent_to_control(s))
+			game.possible |= (1 << s)
+}
+
 function is_present(s) {
 	if (game.active === COMMUNE)
 		return game.presence & (1 << s)
@@ -1612,6 +1619,7 @@ function goto_operations(count, spaces) {
 
 function goto_operations_remove() {
 	update_presence_and_control()
+	update_operations_possible()
 	if (can_operations_remove())
 		game.state = "operations_remove"
 	else
@@ -1626,7 +1634,7 @@ function can_operations_remove() {
 }
 
 function can_operations_remove_space(s) {
-	if (is_present(s) || is_adjacent_to_control(s)) {
+	if (game.possible & (1 << s)) {
 		let c = has_enemy_cube(s)
 		let d = has_enemy_disc(s)
 		if (c || d) {
@@ -1690,8 +1698,9 @@ states.operations_remove = {
 		if (is_military_space(s)) {
 			let str = military_strength(s)
 			if (str >= 3) {
-				logi("Remove " + pn + " from S" + s + ".")
+				log("Remove " + pn + " from S" + s + ".")
 				remove_piece(p)
+				update_presence_and_control()
 				resume_operations_remove()
 			} else {
 				log("Remove " + pn + " from S" + s + ".")
@@ -1701,6 +1710,7 @@ states.operations_remove = {
 		} else {
 			log("Removed " + pn + " from S" + s + ".")
 			remove_piece(p)
+			update_presence_and_control()
 			resume_operations_remove()
 		}
 	},
@@ -1756,6 +1766,7 @@ function attempt_remove_piece(extra) {
 	logi("Strength " + str + " vs " + ops)
 	if (str >= ops) {
 		remove_piece(p)
+		update_presence_and_control()
 		logi("Success")
 	} else {
 		logi("Failure")
@@ -1775,6 +1786,7 @@ function resume_operations_remove() {
 
 function goto_operations_place() {
 	update_presence_and_control()
+	update_operations_possible()
 	if (can_operations_place())
 		game.state = "operations_place"
 	else
@@ -1791,7 +1803,7 @@ function can_operations_place() {
 }
 
 function can_operations_place_space(s) {
-	if (is_present(s) || is_adjacent_to_control(s)) {
+	if (game.possible & (1 << s)) {
 		if (can_place_cube(s)) {
 			let d = has_enemy_disc(s)
 			if (!d || game.count >= 2)
@@ -3301,6 +3313,7 @@ exports.setup = function (seed, scenario, options) {
 
 		presence: 0,
 		control: 0,
+		possible: 0,
 
 		pieces: [
 			// Commune cubes
-- 
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