Initial version of the mod

README.md

@@ -0,0 +1,5 @@
+### 0 A.D. Civ Choices Mod
+
+Adds the civ choices dialog allowing to select one of mutually exclusive technologies at the start of the match.
+
+Example technologies are included for Athenians: either Hoplite or Slinger Militia are unlocked in CC via the civ choices dialog.

gui/session/civ_choices.js

@@ -0,0 +1,26 @@
+function initCivChoicesDialog()
+{
+	let currentPlayer = g_Players[Engine.GetPlayerID()];
+	let civChoices = g_CivData[currentPlayer.civ].CivChoices;
+	if (civChoices)
+	{
+		for (let i = 0; i < civChoices.length; ++i)
+		{
+			let civChoiceButton = Engine.GetGUIObjectByName("civChoice[" + i + "]");
+			civChoiceButton.caption = GetTechnologyData(civChoices[i]).name.generic;
+
+			let size = civChoiceButton.size;
+			size.top = 20 * i;
+			size.bottom = 20 * (i + 1);
+			civChoiceButton.size = size;
+
+			civChoiceButton.onPress = (function(tech) { return function() {
+				Engine.PostNetworkCommand({ "type": "civ-choice", "template": tech });
+				Engine.GetGUIObjectByName("civChoicesDialogPanel").hidden = true;
+			}})(civChoices[i]);
+
+			civChoiceButton.hidden = false;
+		}
+		Engine.GetGUIObjectByName("civChoicesDialogPanel").hidden = false;
+	}
+}

gui/session/dialogs/civ_choices_window.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<object name="civChoicesDialogPanel"
+	size="50%-280 50%-200 50%+280 50%+150"
+	type="image"
+	hidden="true"
+	sprite="ModernDialog"
+>
+	<object type="text" style="TitleText" size="50%-96 -16 50%+96 16">
+		<translatableAttribute id="caption">Civ choices</translatableAttribute>
+	</object>
+
+	<object size="32 64 100%-32 100%-64">
+		<repeat count="4" var="n">
+			<object name="civChoice[n]" size="0 0 100% 20" type="button" style="StoneButton" hidden="true"/>
+		</repeat>
+	</object>
+</object>

gui/session/session.js

@@ -339,6 +339,8 @@ function init(initData, hotloadData)
 	onSimulationUpdate();
 	setTimeout(displayGamestateNotifications, 1000);
 
+	initCivChoicesDialog();
+
 	// Report the performance after 5 seconds (when we're still near
 	// the initial camera view) and a minute (when the profiler will
 	// have settled down if framerates as very low), to give some

mod.json

@@ -0,0 +1,8 @@
+{
+	"name": "Civ choices",
+	"version": "0.0.22",
+	"label": "Civ choices",
+	"description": "Adds the civ choices dialog allowing to select one of mutually exclusive technologies at the start of the match.",
+	"dependencies": ["0ad=0.0.22"],
+	"type": "Feature"
+}

simulation/data/civs/athen.json

@@ -72,6 +72,11 @@
 			"Description":"Constructing a Theatron increases the territory expanse of all buildings by +20%."
 		}
 	],
+	"CivChoices":
+	[
+		"civ_choices/athen/hoplites",
+		"civ_choices/athen/militia"
+	],
 	"TeamBonuses":
 	[
 		{

simulation/data/technologies/civ_choices/athen/hoplites.json

@@ -0,0 +1,3 @@
+{
+	"genericName": "Hoplites"
+}

simulation/data/technologies/civ_choices/athen/militia.json

@@ -0,0 +1,3 @@
+{
+	"genericName": "Militia"
+}

simulation/helpers/CommandsCivChoice.js

@@ -0,0 +1,5 @@
+g_Commands["civ-choice"] = function(player, cmd, data)
+{
+	var cmpTechnologyManager = QueryPlayerIDInterface(player, IID_TechnologyManager);
+	cmpTechnologyManager.ResearchTechnology(cmd.template);
+};

simulation/templates/units/athen_infantry_slinger_b.xml

@@ -16,6 +16,7 @@
     <GenericName>Athenian Slinger Militia</GenericName>
     <SpecificName>Psilòs Athēnaîos</SpecificName>
     <Icon>units/athen_infantry_slinger.png</Icon>
+    <RequiredTechnology>civ_choices/athen/militia</RequiredTechnology>
   </Identity>
   <Promotion>
     <Entity>units/athen_infantry_slinger_a</Entity>

simulation/templates/units/athen_infantry_spearman_b.xml

@@ -22,6 +22,7 @@
     <SpecificName>Hoplítēs Athēnaîos</SpecificName>
     <History>Hoplites were the very symbol of Hellenic prestige and citizenship, armed with a spear and a large round bronze-coated shield known as an aspis. Armor was heavy, with bronze helmets and a cuirass of either bronze or linen, in addition to greaves. Hoplites fought in a tight formation called a phalanx, guarding each other with their shields while they attacked the enemy with their 2.5 meter spear or short iron sword.</History>
     <Icon>units/athen_infantry_spearman.png</Icon>
+    <RequiredTechnology>civ_choices/athen/hoplites</RequiredTechnology>
   </Identity>
   <Promotion>
     <Entity>units/athen_infantry_spearman_a</Entity>