From 7e44500681b2d01591cad1e863b2afd6345b25c1 Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor@ccxvii.net>
Date: Sat, 6 Aug 2022 12:44:49 +0200
Subject: Auto-target!

---
 rules.js | 41 +++++++++++++++++++++++++++++++----------
 1 file changed, 31 insertions(+), 10 deletions(-)

(limited to 'rules.js')

diff --git a/rules.js b/rules.js
index 3720c0d..1009f4b 100644
--- a/rules.js
+++ b/rules.js
@@ -2,9 +2,6 @@
 
 // TODO: RAIDERS
 
-// TODO: group move from queue holding box to base
-// TODO: 1942 malta group (reinforce, reduce supply card draw)
-
 // TODO: MINEFIELDS
 // TODO: create minefields
 // TODO: tear down 2 minefields to create new minefield
@@ -3919,6 +3916,33 @@ function gen_battle_target() {
 	}
 }
 
+function apply_auto_target() {
+	let hp = count_hp_in_battle()
+	for (let i = 0; i < 4; ++i)
+		hp[i] -= game.hits[i]
+
+	let who = game.selected
+	let fc = unit_class[who]
+
+	// armor must target armor if possible
+	if (fc === ARMOR && hp[ARMOR] > 0)
+		return apply_battle_fire(ARMOR)
+
+	// infantry must target infantry if possible
+	if (fc === INFANTRY && hp[INFANTRY] > 0)
+		return apply_battle_fire(INFANTRY)
+
+	// only one class remains
+	if (hp[ARMOR] > 0 && hp[INFANTRY] === 0 && hp[ANTITANK] === 0 && hp[ARTILLERY] === 0)
+		return apply_battle_fire(ARMOR)
+	if (hp[ARMOR] === 0 && hp[INFANTRY] > 0 && hp[ANTITANK] === 0 && hp[ARTILLERY] === 0)
+		return apply_battle_fire(INFANTRY)
+	if (hp[ARMOR] === 0 && hp[INFANTRY] === 0 && hp[ANTITANK] > 0 && hp[ARTILLERY] === 0)
+		return apply_battle_fire(ANTITANK)
+	if (hp[ARMOR] === 0 && hp[INFANTRY] === 0 && hp[ANTITANK] === 0 && hp[ARTILLERY] > 0)
+		return apply_battle_fire(ARTILLERY)
+}
+
 function gen_battle_hits() {
 	let normal_steps = count_normal_steps_in_battle()
 	let elite_steps = count_elite_steps_in_battle()
@@ -3968,6 +3992,8 @@ states.battle_fire = {
 	},
 	unit(who) {
 		apply_select(who)
+		if (game.selected >= 0)
+			apply_auto_target(who)
 	},
 	armor() {
 		apply_battle_fire(ARMOR)
@@ -5783,15 +5809,10 @@ exports.view = function(state, current) {
 	if (game.battle || game.pursuit) {
 		view.hits = game.hits
 		view.flash = game.flash
+		if (game.fired.length > 0)
+			view.fired = game.fired
 	}
 
-	if (game.fired.length > 0 && (game.battle || game.pursuit))
-		view.fired = game.fired
-	if (game.active_battles.length > 0)
-		view.battles = game.active_battles
-	if (game.assault_battles.length > 0)
-		view.assaults = game.assault_battles
-
 	return common_view(current)
 }
 
-- 
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