Trade.

2 files changed, 36 insertions, 1 deletions

diff --git a/play.js b/play.js
index 5ffdfa1..1712cc4 100644
--- a/play.js
+++ b/play.js
@@ -994,6 +994,7 @@ function on_update() {
 	// Decree buttons
 	action_button("build", "Build")
 	action_button("tax", "Tax")
+	action_button("trade", "Trade")
 
 	action_button("next", "Next")
 	action_button("undo", "Undo")
diff --git a/rules.js b/rules.js
index 2c18d34..536663b 100644
--- a/rules.js
+++ b/rules.js
@@ -450,6 +450,11 @@ function goto_tax() {
 	game.state = "tax"
 }
 
+function goto_trade() {
+	init_command("Trade")
+	game.state = "trade"
+}
+
 /* STATES */
 
 states.eligible = {
@@ -505,6 +510,7 @@ states.command_decree = {
 	rally: goto_rally,
 	rebel: goto_rebel,
 	tax: goto_tax,
+	trade: goto_trade,
 }
 
 states.event_command = {
@@ -726,6 +732,23 @@ states.tax = {
 	}
 }
 
+states.trade = {
+	// TODO : Add horses logic to trade
+	prompt() {
+		view.prompt = `Trade: Collect ${trade_count()} from Provinces with your presence`
+
+		gen_action_resources(BK)
+	},
+	resources(f) {
+		let t = trade_count()
+		add_resources(game.current, t)
+		logi_resources(BK, t)
+		game.decree = 0
+		game.state = "command_decree"
+	}
+}
+
+
 /* COMMANDS */
 
 function init_command(type) {
@@ -859,7 +882,7 @@ function gen_any_decree() {
 		// view.actions.campaign = can_campaign() ? 1 : 0
 		// view.actions.demand = can_demand() ? 1 : 0
 	} else if (game.current === BK) {
-		// view.actions.trade = can_trade() ? 1 : 0
+		view.actions.trade = can_trade() ? 1 : 0
 		view.actions.build = can_build() ? 1 : 0
 		// view.actions.conspire = can_conspire() ? 1 : 0
 	} else if (game.current === VE) {
@@ -885,6 +908,17 @@ function tax_count() {
 	return count_pieces_on_map(VE, DISC) + game.prosperity[VE]
 }
 
+function can_trade() {
+	return trade_count() > 0
+}
+
+function trade_count() {
+	let count = 0
+	for (let s = first_space; s <= last_province; ++s)
+		count += (count_pieces(s, BK, DISC) + count_pieces(s, BK, ELITE)) > 0 ? 1 : 0
+	return count
+}
+
 /* TRIBUTARY AND REBELS */
 
 function add_tributary(s) {