1
0
forked from 0ad/0ad
0ad/binaries/data/mods/public/simulation/helpers/Commands.js

1403 lines
45 KiB
JavaScript

// Setting this to true will display some warnings when commands
// are likely to fail, which may be useful for debugging AIs
var g_DebugCommands = false;
function ProcessCommand(player, cmd)
{
// Do some basic checks here that commanding player is valid
var cmpPlayerMan = Engine.QueryInterface(SYSTEM_ENTITY, IID_PlayerManager);
if (!cmpPlayerMan || player < 0)
return;
var playerEnt = cmpPlayerMan.GetPlayerByID(player);
if (playerEnt == INVALID_ENTITY)
return;
var cmpPlayer = Engine.QueryInterface(playerEnt, IID_Player);
if (!cmpPlayer)
return;
var controlAllUnits = cmpPlayer.CanControlAllUnits();
var entities;
if (cmd.entities)
entities = FilterEntityList(cmd.entities, player, controlAllUnits);
// Note: checks of UnitAI targets are not robust enough here, as ownership
// can change after the order is issued, they should be checked by UnitAI
// when the specific behavior (e.g. attack, garrison) is performed.
// (Also it's not ideal if a command silently fails, it's nicer if UnitAI
// moves the entities closer to the target before giving up.)
// Now handle various commands
switch (cmd.type)
{
case "debug-print":
print(cmd.message);
break;
case "chat":
var cmpGuiInterface = Engine.QueryInterface(SYSTEM_ENTITY, IID_GuiInterface);
cmpGuiInterface.PushNotification({"type": "chat", "player": player, "message": cmd.message});
break;
case "cheat":
Cheat(cmd);
break;
case "quit":
// Let the AI exit the game for testing purposes
var cmpGuiInterface = Engine.QueryInterface(SYSTEM_ENTITY, IID_GuiInterface);
cmpGuiInterface.PushNotification({"type": "quit"});
break;
case "diplomacy":
switch(cmd.to)
{
case "ally":
cmpPlayer.SetAlly(cmd.player);
break;
case "neutral":
cmpPlayer.SetNeutral(cmd.player);
break;
case "enemy":
cmpPlayer.SetEnemy(cmd.player);
break;
default:
warn("Invalid command: Could not set "+player+" diplomacy status of player "+cmd.player+" to "+cmd.to);
}
var cmpGuiInterface = Engine.QueryInterface(SYSTEM_ENTITY, IID_GuiInterface);
cmpGuiInterface.PushNotification({"type": "diplomacy", "player": player, "player1": cmd.player, "status": cmd.to});
break;
case "tribute":
cmpPlayer.TributeResource(cmd.player, cmd.amounts);
break;
case "control-all":
cmpPlayer.SetControlAllUnits(cmd.flag);
break;
case "reveal-map":
// Reveal the map for all players, not just the current player,
// primarily to make it obvious to everyone that the player is cheating
var cmpRangeManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_RangeManager);
cmpRangeManager.SetLosRevealAll(-1, cmd.enable);
break;
case "walk":
GetFormationUnitAIs(entities, player).forEach(function(cmpUnitAI) {
cmpUnitAI.Walk(cmd.x, cmd.z, cmd.queued);
});
break;
case "attack-walk":
GetFormationUnitAIs(entities, player).forEach(function(cmpUnitAI) {
cmpUnitAI.WalkAndFight(cmd.x, cmd.z, cmd.queued);
});
break;
case "attack":
if (g_DebugCommands && !(IsOwnedByEnemyOfPlayer(player, cmd.target) || IsOwnedByNeutralOfPlayer(player, cmd.target)))
{
// This check is for debugging only!
warn("Invalid command: attack target is not owned by enemy of player "+player+": "+uneval(cmd));
}
// See UnitAI.CanAttack for target checks
GetFormationUnitAIs(entities, player).forEach(function(cmpUnitAI) {
cmpUnitAI.Attack(cmd.target, cmd.queued);
});
break;
case "heal":
if (g_DebugCommands && !(IsOwnedByPlayer(player, cmd.target) || IsOwnedByAllyOfPlayer(player, cmd.target)))
{
// This check is for debugging only!
warn("Invalid command: heal target is not owned by player "+player+" or their ally: "+uneval(cmd));
}
// See UnitAI.CanHeal for target checks
GetFormationUnitAIs(entities, player).forEach(function(cmpUnitAI) {
cmpUnitAI.Heal(cmd.target, cmd.queued);
});
break;
case "repair":
// This covers both repairing damaged buildings, and constructing unfinished foundations
if (g_DebugCommands && !IsOwnedByAllyOfPlayer(player, cmd.target))
{
// This check is for debugging only!
warn("Invalid command: repair target is not owned by ally of player "+player+": "+uneval(cmd));
}
// See UnitAI.CanRepair for target checks
GetFormationUnitAIs(entities, player).forEach(function(cmpUnitAI) {
cmpUnitAI.Repair(cmd.target, cmd.autocontinue, cmd.queued);
});
break;
case "gather":
if (g_DebugCommands && !(IsOwnedByPlayer(player, cmd.target) || IsOwnedByGaia(cmd.target)))
{
// This check is for debugging only!
warn("Invalid command: resource is not owned by gaia or player "+player+": "+uneval(cmd));
}
// See UnitAI.CanGather for target checks
GetFormationUnitAIs(entities, player).forEach(function(cmpUnitAI) {
cmpUnitAI.Gather(cmd.target, cmd.queued);
});
break;
case "gather-near-position":
GetFormationUnitAIs(entities, player).forEach(function(cmpUnitAI) {
cmpUnitAI.GatherNearPosition(cmd.x, cmd.z, cmd.resourceType, cmd.resourceTemplate, cmd.queued);
});
break;
case "returnresource":
// Check dropsite is owned by player
if (g_DebugCommands && !IsOwnedByPlayer(player, cmd.target))
{
// This check is for debugging only!
warn("Invalid command: dropsite is not owned by player "+player+": "+uneval(cmd));
}
// See UnitAI.CanReturnResource for target checks
GetFormationUnitAIs(entities, player).forEach(function(cmpUnitAI) {
cmpUnitAI.ReturnResource(cmd.target, cmd.queued);
});
break;
case "train":
// Check entity limits
var cmpTempMan = Engine.QueryInterface(SYSTEM_ENTITY, IID_TemplateManager);
var template = cmpTempMan.GetTemplate(cmd.template);
var unitCategory = null;
if (template.TrainingRestrictions)
unitCategory = template.TrainingRestrictions.Category;
// Verify that the building(s) can be controlled by the player
if (entities.length > 0)
{
for each (var ent in entities)
{
if (unitCategory)
{
var cmpPlayerEntityLimits = QueryOwnerInterface(ent, IID_EntityLimits);
if (!cmpPlayerEntityLimits.AllowedToTrain(unitCategory, cmd.count))
{
if (g_DebugCommands)
warn(unitCategory + " train limit is reached: " + uneval(cmd));
continue;
}
}
var cmpTechnologyManager = QueryOwnerInterface(ent, IID_TechnologyManager);
// TODO: Enable this check once the AI gets technology support
if (cmpTechnologyManager.CanProduce(cmd.template) || cmpPlayer.IsAI())
{
var queue = Engine.QueryInterface(ent, IID_ProductionQueue);
// Check if the building can train the unit
if (queue && queue.GetEntitiesList().indexOf(cmd.template) != -1)
queue.AddBatch(cmd.template, "unit", +cmd.count, cmd.metadata);
}
else if (g_DebugCommands)
{
warn("Invalid command: training requires unresearched technology: " + uneval(cmd));
}
}
}
else if (g_DebugCommands)
{
warn("Invalid command: training building(s) cannot be controlled by player "+player+": "+uneval(cmd));
}
break;
case "research":
// Verify that the building can be controlled by the player
if (CanControlUnit(cmd.entity, player, controlAllUnits))
{
var cmpTechnologyManager = QueryOwnerInterface(cmd.entity, IID_TechnologyManager);
// TODO: Enable this check once the AI gets technology support
if (cmpTechnologyManager.CanResearch(cmd.template) || cmpPlayer.IsAI())
{
var queue = Engine.QueryInterface(cmd.entity, IID_ProductionQueue);
if (queue)
queue.AddBatch(cmd.template, "technology");
}
else if (g_DebugCommands)
{
warn("Invalid command: Requirements to research technology are not met: " + uneval(cmd));
}
}
else if (g_DebugCommands)
{
warn("Invalid command: research building cannot be controlled by player "+player+": "+uneval(cmd));
}
break;
case "stop-production":
// Verify that the building can be controlled by the player
if (CanControlUnit(cmd.entity, player, controlAllUnits))
{
var queue = Engine.QueryInterface(cmd.entity, IID_ProductionQueue);
if (queue)
queue.RemoveBatch(cmd.id);
}
else if (g_DebugCommands)
{
warn("Invalid command: production building cannot be controlled by player "+player+": "+uneval(cmd));
}
break;
case "construct":
TryConstructBuilding(player, cmpPlayer, controlAllUnits, cmd);
break;
case "construct-wall":
TryConstructWall(player, cmpPlayer, controlAllUnits, cmd);
break;
case "delete-entities":
for each (var ent in entities)
{
var cmpHealth = Engine.QueryInterface(ent, IID_Health);
if (cmpHealth)
{
var cmpResourceSupply = Engine.QueryInterface(ent, IID_ResourceSupply);
if (!cmpResourceSupply || !cmpResourceSupply.GetKillBeforeGather())
cmpHealth.Kill();
}
else
Engine.DestroyEntity(ent);
}
break;
case "set-rallypoint":
for each (var ent in entities)
{
var cmpRallyPoint = Engine.QueryInterface(ent, IID_RallyPoint);
if (cmpRallyPoint)
{
if (!cmd.queued)
cmpRallyPoint.Unset();
cmpRallyPoint.AddPosition(cmd.x, cmd.z);
cmpRallyPoint.AddData(cmd.data);
}
}
break;
case "unset-rallypoint":
for each (var ent in entities)
{
var cmpRallyPoint = Engine.QueryInterface(ent, IID_RallyPoint);
if (cmpRallyPoint)
cmpRallyPoint.Unset();
}
break;
case "defeat-player":
// Send "OnPlayerDefeated" message to player
Engine.PostMessage(playerEnt, MT_PlayerDefeated, { "playerId": player } );
break;
case "garrison":
// Verify that the building can be controlled by the player or is mutualAlly
if (CanControlUnitOrIsAlly(cmd.target, player, controlAllUnits))
{
GetFormationUnitAIs(entities, player).forEach(function(cmpUnitAI) {
cmpUnitAI.Garrison(cmd.target, cmd.queued);
});
}
else if (g_DebugCommands)
{
warn("Invalid command: garrison target cannot be controlled by player "+player+" (or ally): "+uneval(cmd));
}
break;
case "stop":
GetFormationUnitAIs(entities, player).forEach(function(cmpUnitAI) {
cmpUnitAI.Stop(cmd.queued);
});
break;
case "unload":
// Verify that the building can be controlled by the player or is mutualAlly
if (CanControlUnitOrIsAlly(cmd.garrisonHolder, player, controlAllUnits))
{
var cmpGarrisonHolder = Engine.QueryInterface(cmd.garrisonHolder, IID_GarrisonHolder);
var notUngarrisoned = 0;
// The owner can ungarrison every garrisoned unit
if (IsOwnedByPlayer(player, cmd.garrisonHolder))
entities = cmd.entities;
for each (var ent in entities)
if (!cmpGarrisonHolder || !cmpGarrisonHolder.Unload(ent))
notUngarrisoned++;
if (notUngarrisoned != 0)
notifyUnloadFailure(player, cmd.garrisonHolder)
}
else if (g_DebugCommands)
{
warn("Invalid command: unload target cannot be controlled by player "+player+" (or ally): "+uneval(cmd));
}
break;
case "unload-template":
var index = cmd.template.indexOf("&"); // Templates for garrisoned units are extended
if (index == -1)
break;
var entities = FilterEntityListWithAllies(cmd.garrisonHolders, player, controlAllUnits);
for each (var garrisonHolder in entities)
{
var cmpGarrisonHolder = Engine.QueryInterface(garrisonHolder, IID_GarrisonHolder);
if (cmpGarrisonHolder)
{
// Only the owner of the garrisonHolder may unload entities from any owners
if (!IsOwnedByPlayer(player, garrisonHolder) && !controlAllUnits
&& player != +cmd.template.slice(1,index))
continue;
if (!cmpGarrisonHolder.UnloadTemplate(cmd.template, cmd.all))
notifyUnloadFailure(player, garrisonHolder);
}
}
break;
case "unload-all-own":
var entities = FilterEntityList(cmd.garrisonHolders, player, controlAllUnits);
for each (var garrisonHolder in entities)
{
var cmpGarrisonHolder = Engine.QueryInterface(garrisonHolder, IID_GarrisonHolder);
if (!cmpGarrisonHolder || !cmpGarrisonHolder.UnloadAllOwn())
notifyUnloadFailure(player, garrisonHolder)
}
break;
case "unload-all":
var entities = FilterEntityList(cmd.garrisonHolders, player, controlAllUnits);
for each (var garrisonHolder in entities)
{
var cmpGarrisonHolder = Engine.QueryInterface(garrisonHolder, IID_GarrisonHolder);
if (!cmpGarrisonHolder || !cmpGarrisonHolder.UnloadAll())
notifyUnloadFailure(player, garrisonHolder)
}
break;
case "formation":
GetFormationUnitAIs(entities, player, cmd.name).forEach(function(cmpUnitAI) {
cmpUnitAI.MoveIntoFormation(cmd);
});
break;
case "promote":
// No need to do checks here since this is a cheat anyway
var cmpGuiInterface = Engine.QueryInterface(SYSTEM_ENTITY, IID_GuiInterface);
cmpGuiInterface.PushNotification({"type": "chat", "player": player, "message": "(Cheat - promoted units)"});
for each (var ent in cmd.entities)
{
var cmpPromotion = Engine.QueryInterface(ent, IID_Promotion);
if (cmpPromotion)
cmpPromotion.IncreaseXp(cmpPromotion.GetRequiredXp() - cmpPromotion.GetCurrentXp());
}
break;
case "stance":
for each (var ent in entities)
{
var cmpUnitAI = Engine.QueryInterface(ent, IID_UnitAI);
if (cmpUnitAI)
cmpUnitAI.SwitchToStance(cmd.name);
}
break;
case "wall-to-gate":
for each (var ent in entities)
{
TryTransformWallToGate(ent, cmpPlayer, cmd.template);
}
break;
case "lock-gate":
for each (var ent in entities)
{
var cmpGate = Engine.QueryInterface(ent, IID_Gate);
if (cmpGate)
{
if (cmd.lock)
cmpGate.LockGate();
else
cmpGate.UnlockGate();
}
}
break;
case "setup-trade-route":
for each (var ent in entities)
{
var cmpUnitAI = Engine.QueryInterface(ent, IID_UnitAI);
if (cmpUnitAI)
cmpUnitAI.SetupTradeRoute(cmd.target, cmd.source);
}
break;
case "select-trading-goods":
for each (var ent in entities)
{
var cmpTrader = Engine.QueryInterface(ent, IID_Trader);
if (cmpTrader)
cmpTrader.SetPreferredGoods(cmd.preferredGoods);
}
break;
case "barter":
var cmpBarter = Engine.QueryInterface(SYSTEM_ENTITY, IID_Barter);
cmpBarter.ExchangeResources(playerEnt, cmd.sell, cmd.buy, cmd.amount);
break;
case "set-shading-color":
// Debug command to make an entity brightly colored
for each (var ent in cmd.entities)
{
var cmpVisual = Engine.QueryInterface(ent, IID_Visual)
if (cmpVisual)
cmpVisual.SetShadingColour(cmd.rgb[0], cmd.rgb[1], cmd.rgb[2], 0) // alpha isn't used so just send 0
}
break;
case "pack":
for each (var ent in entities)
{
var cmpUnitAI = Engine.QueryInterface(ent, IID_UnitAI);
if (cmpUnitAI)
{
if (cmd.pack)
cmpUnitAI.Pack(cmd.queued);
else
cmpUnitAI.Unpack(cmd.queued);
}
}
break;
case "cancel-pack":
for each (var ent in entities)
{
var cmpUnitAI = Engine.QueryInterface(ent, IID_UnitAI);
if (cmpUnitAI)
{
if (cmd.pack)
cmpUnitAI.CancelPack(cmd.queued);
else
cmpUnitAI.CancelUnpack(cmd.queued);
}
}
break;
default:
error("Invalid command: unknown command type: "+uneval(cmd));
}
}
/**
* Sends a GUI notification about unit(s) that failed to ungarrison.
*/
function notifyUnloadFailure(player, garrisonHolder)
{
var cmpPlayer = QueryPlayerIDInterface(player, IID_Player);
var notification = {"player": cmpPlayer.GetPlayerID(), "message": "Unable to ungarrison unit(s)" };
var cmpGUIInterface = Engine.QueryInterface(SYSTEM_ENTITY, IID_GuiInterface);
cmpGUIInterface.PushNotification(notification);
}
/**
* Get some information about the formations used by entities.
* The entities must have a UnitAI component.
*/
function ExtractFormations(ents)
{
var entities = []; // subset of ents that have UnitAI
var members = {}; // { formationentity: [ent, ent, ...], ... }
for each (var ent in ents)
{
var cmpUnitAI = Engine.QueryInterface(ent, IID_UnitAI);
var fid = cmpUnitAI.GetFormationController();
if (fid != INVALID_ENTITY)
{
if (!members[fid])
members[fid] = [];
members[fid].push(ent);
}
entities.push(ent);
}
var ids = [ id for (id in members) ];
return { "entities": entities, "members": members, "ids": ids };
}
/**
* Tries to find the best angle to put a dock at a given position
* Taken from GuiInterface.js
*/
function GetDockAngle(templateName,x,y)
{
var cmpTemplateMgr = Engine.QueryInterface(SYSTEM_ENTITY, IID_TemplateManager);
var template = cmpTemplateMgr.GetTemplate(templateName);
if (template.BuildRestrictions.Category !== "Dock")
return undefined;
var cmpTerrain = Engine.QueryInterface(SYSTEM_ENTITY, IID_Terrain);
var cmpWaterManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_WaterManager);
if (!cmpTerrain || !cmpWaterManager)
{
return undefined;
}
// Get footprint size
var halfSize = 0;
if (template.Footprint.Square)
{
halfSize = Math.max(template.Footprint.Square["@depth"], template.Footprint.Square["@width"])/2;
}
else if (template.Footprint.Circle)
{
halfSize = template.Footprint.Circle["@radius"];
}
/* Find direction of most open water, algorithm:
* 1. Pick points in a circle around dock
* 2. If point is in water, add to array
* 3. Scan array looking for consecutive points
* 4. Find longest sequence of consecutive points
* 5. If sequence equals all points, no direction can be determined,
* expand search outward and try (1) again
* 6. Calculate angle using average of sequence
*/
const numPoints = 16;
for (var dist = 0; dist < 4; ++dist)
{
var waterPoints = [];
for (var i = 0; i < numPoints; ++i)
{
var angle = (i/numPoints)*2*Math.PI;
var d = halfSize*(dist+1);
var nx = x - d*Math.sin(angle);
var nz = y + d*Math.cos(angle);
if (cmpTerrain.GetGroundLevel(nx, nz) < cmpWaterManager.GetWaterLevel(nx, nz))
{
waterPoints.push(i);
}
}
var consec = [];
var length = waterPoints.length;
for (var i = 0; i < length; ++i)
{
var count = 0;
for (var j = 0; j < (length-1); ++j)
{
if (((waterPoints[(i + j) % length]+1) % numPoints) == waterPoints[(i + j + 1) % length])
{
++count;
}
else
{
break;
}
}
consec[i] = count;
}
var start = 0;
var count = 0;
for (var c in consec)
{
if (consec[c] > count)
{
start = c;
count = consec[c];
}
}
// If we've found a shoreline, stop searching
if (count != numPoints-1)
{
return -(((waterPoints[start] + consec[start]/2) % numPoints)/numPoints*2*Math.PI);
}
}
return undefined;
}
/**
* Attempts to construct a building using the specified parameters.
* Returns true on success, false on failure.
*/
function TryConstructBuilding(player, cmpPlayer, controlAllUnits, cmd)
{
// Message structure:
// {
// "type": "construct",
// "entities": [...], // entities that will be ordered to construct the building (if applicable)
// "template": "...", // template name of the entity being constructed
// "x": ...,
// "z": ...,
// "angle": ...,
// "metadata": "...", // AI metadata of the building
// "actorSeed": ...,
// "autorepair": true, // whether to automatically start constructing/repairing the new foundation
// "autocontinue": true, // whether to automatically gather/build/etc after finishing this
// "queued": true, // whether to add the construction/repairing of this foundation to entities' queue (if applicable)
// "obstructionControlGroup": ..., // Optional; the obstruction control group ID that should be set for this building prior to obstruction
// // testing to determine placement validity. If specified, must be a valid control group ID (> 0).
// "obstructionControlGroup2": ..., // Optional; secondary obstruction control group ID that should be set for this building prior to obstruction
// // testing to determine placement validity. May be INVALID_ENTITY.
// }
/*
* Construction process:
* . Take resources away immediately.
* . Create a foundation entity with 1hp, 0% build progress.
* . Increase hp and build progress up to 100% when people work on it.
* . If it's destroyed, an appropriate fraction of the resource cost is refunded.
* . If it's completed, it gets replaced with the real building.
*/
// Check whether we can control these units
var entities = FilterEntityList(cmd.entities, player, controlAllUnits);
if (!entities.length)
return false;
var foundationTemplate = "foundation|" + cmd.template;
// Tentatively create the foundation (we might find later that it's a invalid build command)
var ent = Engine.AddEntity(foundationTemplate);
if (ent == INVALID_ENTITY)
{
// Error (e.g. invalid template names)
error("Error creating foundation entity for '" + cmd.template + "'");
return false;
}
// If it's a dock, get the right angle.
var angle = GetDockAngle(cmd.template,cmd.x,cmd.z);
if (angle !== undefined)
cmd.angle = angle;
// Move the foundation to the right place
var cmpPosition = Engine.QueryInterface(ent, IID_Position);
cmpPosition.JumpTo(cmd.x, cmd.z);
cmpPosition.SetYRotation(cmd.angle);
// Set the obstruction control group if needed
if (cmd.obstructionControlGroup || cmd.obstructionControlGroup2)
{
var cmpObstruction = Engine.QueryInterface(ent, IID_Obstruction);
// primary control group must always be valid
if (cmd.obstructionControlGroup)
{
if (cmd.obstructionControlGroup <= 0)
warn("[TryConstructBuilding] Invalid primary obstruction control group " + cmd.obstructionControlGroup + " received; must be > 0");
cmpObstruction.SetControlGroup(cmd.obstructionControlGroup);
}
if (cmd.obstructionControlGroup2)
cmpObstruction.SetControlGroup2(cmd.obstructionControlGroup2);
}
// Make it owned by the current player
var cmpOwnership = Engine.QueryInterface(ent, IID_Ownership);
cmpOwnership.SetOwner(player);
// Check whether building placement is valid
var cmpBuildRestrictions = Engine.QueryInterface(ent, IID_BuildRestrictions);
if (cmpBuildRestrictions)
{
var ret = cmpBuildRestrictions.CheckPlacement();
if (!ret.success)
{
if (g_DebugCommands)
{
warn("Invalid command: build restrictions check failed for player "+player+": "+uneval(cmd));
}
var cmpGuiInterface = Engine.QueryInterface(SYSTEM_ENTITY, IID_GuiInterface);
cmpGuiInterface.PushNotification({ "player": player, "message": ret.message });
// Remove the foundation because the construction was aborted
Engine.DestroyEntity(ent);
return false;
}
}
else
error("cmpBuildRestrictions not defined");
// Check entity limits
var cmpEntityLimits = QueryPlayerIDInterface(player, IID_EntityLimits);
if (!cmpEntityLimits || !cmpEntityLimits.AllowedToBuild(cmpBuildRestrictions.GetCategory()))
{
if (g_DebugCommands)
{
warn("Invalid command: build limits check failed for player "+player+": "+uneval(cmd));
}
// Remove the foundation because the construction was aborted
Engine.DestroyEntity(ent);
return false;
}
var cmpTechnologyManager = QueryPlayerIDInterface(player, IID_TechnologyManager);
// TODO: Enable this check once the AI gets technology support
if (!cmpTechnologyManager.CanProduce(cmd.template) && !cmpPlayer.IsAI())
{
if (g_DebugCommands)
{
warn("Invalid command: required technology check failed for player "+player+": "+uneval(cmd));
}
var cmpGuiInterface = Engine.QueryInterface(SYSTEM_ENTITY, IID_GuiInterface);
cmpGuiInterface.PushNotification({ "player": player, "message": "Building's technology requirements are not met." });
// Remove the foundation because the construction was aborted
Engine.DestroyEntity(ent);
}
// We need the cost after tech modifications
// To calculate this with an entity requires ownership, so use the template instead
var cmpTemplateManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_TemplateManager);
var template = cmpTemplateManager.GetTemplate(foundationTemplate);
var costs = {};
for (var r in template.Cost.Resources)
{
costs[r] = +template.Cost.Resources[r];
if (cmpTechnologyManager)
costs[r] = cmpTechnologyManager.ApplyModificationsTemplate("Cost/Resources/"+r, costs[r], template);
}
if (!cmpPlayer.TrySubtractResources(costs))
{
if (g_DebugCommands)
warn("Invalid command: building cost check failed for player "+player+": "+uneval(cmd));
Engine.DestroyEntity(ent);
return false;
}
var cmpVisual = Engine.QueryInterface(ent, IID_Visual);
if (cmpVisual && cmd.actorSeed !== undefined)
cmpVisual.SetActorSeed(cmd.actorSeed);
// Initialise the foundation
var cmpFoundation = Engine.QueryInterface(ent, IID_Foundation);
cmpFoundation.InitialiseConstruction(player, cmd.template);
// send Metadata info if any
if (cmd.metadata)
Engine.PostMessage(ent, MT_AIMetadata, { "id": ent, "metadata" : cmd.metadata, "owner" : player } );
// Tell the units to start building this new entity
if (cmd.autorepair)
{
ProcessCommand(player, {
"type": "repair",
"entities": entities,
"target": ent,
"autocontinue": cmd.autocontinue,
"queued": cmd.queued
});
}
return ent;
}
function TryConstructWall(player, cmpPlayer, controlAllUnits, cmd)
{
// 'cmd' message structure:
// {
// "type": "construct-wall",
// "entities": [...], // entities that will be ordered to construct the wall (if applicable)
// "pieces": [ // ordered list of information about the pieces making up the wall (towers, wall segments, ...)
// {
// "template": "...", // one of the templates from the wallset
// "x": ...,
// "z": ...,
// "angle": ...,
// },
// ...
// ],
// "wallSet": {
// "templates": {
// "tower": // tower template name
// "long": // long wall segment template name
// ... // etc.
// },
// "maxTowerOverlap": ...,
// "minTowerOverlap": ...,
// },
// "startSnappedEntity": // optional; entity ID of tower being snapped to at the starting side of the wall
// "endSnappedEntity": // optional; entity ID of tower being snapped to at the ending side of the wall
// "autorepair": true, // whether to automatically start constructing/repairing the new foundation
// "autocontinue": true, // whether to automatically gather/build/etc after finishing this
// "queued": true, // whether to add the construction/repairing of this wall's pieces to entities' queue (if applicable)
// }
if (cmd.pieces.length <= 0)
return;
if (cmd.startSnappedEntity && cmd.pieces[0].template == cmd.wallSet.templates.tower)
{
error("[TryConstructWall] Starting wall piece cannot be a tower (" + cmd.wallSet.templates.tower + ") when snapping at the starting side");
return;
}
if (cmd.endSnappedEntity && cmd.pieces[cmd.pieces.length - 1].template == cmd.wallSet.templates.tower)
{
error("[TryConstructWall] Ending wall piece cannot be a tower (" + cmd.wallSet.templates.tower + ") when snapping at the ending side");
return;
}
// Assign obstruction control groups to allow the wall pieces to mutually overlap during foundation placement
// and during construction. The scheme here is that whatever wall pieces are inbetween two towers inherit the control
// groups of both of the towers they are connected to (either newly constructed ones as part of the wall, or existing
// towers in the case of snapping). The towers themselves all keep their default unique control groups.
// To support this, every non-tower piece registers the entity ID of the towers (or foundations thereof) that neighbour
// it on either side. Specifically, each non-tower wall piece has its primary control group set equal to that of the
// first tower encountered towards the starting side of the wall, and its secondary control group set equal to that of
// the first tower encountered towards the ending side of the wall (if any).
// We can't build the whole wall at once by linearly stepping through the wall pieces and build them, because the
// wall segments may/will need the entity IDs of towers that come afterwards. So, build it in two passes:
//
// FIRST PASS:
// - Go from start to end and construct wall piece foundations as far as we can without running into a piece that
// cannot be built (e.g. because it is obstructed). At each non-tower, set the most recently built tower's ID
// as the primary control group, thus allowing it to be built overlapping the previous piece.
// - If we encounter a new tower along the way (which will gain its own control group), do the following:
// o First build it using temporarily the same control group of the previous (non-tower) piece
// o Set the previous piece's secondary control group to the tower's entity ID
// o Restore the primary control group of the constructed tower back its original (unique) value.
// The temporary control group is necessary to allow the newer tower with its unique control group ID to be able
// to be placed while overlapping the previous piece.
//
// SECOND PASS:
// - Go end to start from the last successfully placed wall piece (which might be a tower we backtracked to), this
// time registering the right neighbouring tower in each non-tower piece.
// first pass; L -> R
var lastTowerIndex = -1; // index of the last tower we've encountered in cmd.pieces
var lastTowerControlGroup = null; // control group of the last tower we've encountered, to assign to non-tower pieces
// If we're snapping to an existing entity at the starting end, set lastTowerControlGroup to its control group ID so that
// the first wall piece can be built while overlapping it.
if (cmd.startSnappedEntity)
{
var cmpSnappedStartObstruction = Engine.QueryInterface(cmd.startSnappedEntity, IID_Obstruction);
if (!cmpSnappedStartObstruction)
{
error("[TryConstructWall] Snapped entity on starting side does not have an obstruction component");
return;
}
lastTowerControlGroup = cmpSnappedStartObstruction.GetControlGroup();
//warn("setting lastTowerControlGroup to control group of start snapped entity " + cmd.startSnappedEntity + ": " + lastTowerControlGroup);
}
var i = 0;
for (; i < cmd.pieces.length; ++i)
{
var piece = cmd.pieces[i];
// All wall pieces after the first must be queued.
if (i > 0 && !cmd.queued)
cmd.queued = true;
// 'lastTowerControlGroup' must always be defined and valid here, except if we're at the first piece and we didn't do
// start position snapping (implying that the first entity we build must be a tower)
if (lastTowerControlGroup === null || lastTowerControlGroup == INVALID_ENTITY)
{
if (!(i == 0 && piece.template == cmd.wallSet.templates.tower && !cmd.startSnappedEntity))
{
error("[TryConstructWall] Expected last tower control group to be available, none found (1st pass, iteration " + i + ")");
break;
}
}
var constructPieceCmd = {
"type": "construct",
"entities": cmd.entities,
"template": piece.template,
"x": piece.x,
"z": piece.z,
"angle": piece.angle,
"autorepair": cmd.autorepair,
"autocontinue": cmd.autocontinue,
"queued": cmd.queued,
// Regardless of whether we're building a tower or an intermediate wall piece, it is always (first) constructed
// using the control group of the last tower (see comments above).
"obstructionControlGroup": lastTowerControlGroup,
};
// If we're building the last piece and we're attaching to a snapped entity, we need to add in the snapped entity's
// control group directly at construction time (instead of setting it in the second pass) to allow it to be built
// while overlapping the snapped entity.
if (i == cmd.pieces.length - 1 && cmd.endSnappedEntity)
{
var cmpEndSnappedObstruction = Engine.QueryInterface(cmd.endSnappedEntity, IID_Obstruction);
if (cmpEndSnappedObstruction)
constructPieceCmd.obstructionControlGroup2 = cmpEndSnappedObstruction.GetControlGroup();
}
var pieceEntityId = TryConstructBuilding(player, cmpPlayer, controlAllUnits, constructPieceCmd);
if (pieceEntityId)
{
// wall piece foundation successfully built, save the entity ID in the piece info object so we can reference it later
piece.ent = pieceEntityId;
// if we built a tower, do the control group dance (see outline above) and update lastTowerControlGroup and lastTowerIndex
if (piece.template == cmd.wallSet.templates.tower)
{
var cmpTowerObstruction = Engine.QueryInterface(pieceEntityId, IID_Obstruction);
var newTowerControlGroup = pieceEntityId;
if (i > 0)
{
//warn(" updating previous wall piece's secondary control group to " + newTowerControlGroup);
var cmpPreviousObstruction = Engine.QueryInterface(cmd.pieces[i-1].ent, IID_Obstruction);
// TODO: ensure that cmpPreviousObstruction exists
// TODO: ensure that the previous obstruction does not yet have a secondary control group set
cmpPreviousObstruction.SetControlGroup2(newTowerControlGroup);
}
// TODO: ensure that cmpTowerObstruction exists
cmpTowerObstruction.SetControlGroup(newTowerControlGroup); // give the tower its own unique control group
lastTowerIndex = i;
lastTowerControlGroup = newTowerControlGroup;
}
}
else
{
// failed to build wall piece, abort
i = j + 1; // compensate for the -1 subtracted by lastBuiltPieceIndex below
break;
}
}
var lastBuiltPieceIndex = i - 1;
var wallComplete = (lastBuiltPieceIndex == cmd.pieces.length - 1);
// At this point, 'i' is the index of the last wall piece that was successfully constructed (which may or may not be a tower).
// Now do the second pass going right-to-left, registering the control groups of the towers to the right of each piece (if any)
// as their secondary control groups.
lastTowerControlGroup = null; // control group of the last tower we've encountered, to assign to non-tower pieces
// only start off with the ending side's snapped tower's control group if we were able to build the entire wall
if (cmd.endSnappedEntity && wallComplete)
{
var cmpSnappedEndObstruction = Engine.QueryInterface(cmd.endSnappedEntity, IID_Obstruction);
if (!cmpSnappedEndObstruction)
{
error("[TryConstructWall] Snapped entity on ending side does not have an obstruction component");
return;
}
lastTowerControlGroup = cmpSnappedEndObstruction.GetControlGroup();
}
for (var j = lastBuiltPieceIndex; j >= 0; --j)
{
var piece = cmd.pieces[j];
if (!piece.ent)
{
error("[TryConstructWall] No entity ID set for constructed entity of template '" + piece.template + "'");
continue;
}
var cmpPieceObstruction = Engine.QueryInterface(piece.ent, IID_Obstruction);
if (!cmpPieceObstruction)
{
error("[TryConstructWall] Wall piece of template '" + piece.template + "' has no Obstruction component");
continue;
}
if (piece.template == cmd.wallSet.templates.tower)
{
// encountered a tower entity, update the last tower control group
lastTowerControlGroup = cmpPieceObstruction.GetControlGroup();
}
else
{
// Encountered a non-tower entity, update its secondary control group to 'lastTowerControlGroup'.
// Note that the wall piece may already have its secondary control group set to the tower's entity ID from a control group
// dance during the first pass, in which case we should validate it against 'lastTowerControlGroup'.
var existingSecondaryControlGroup = cmpPieceObstruction.GetControlGroup2();
if (existingSecondaryControlGroup == INVALID_ENTITY)
{
if (lastTowerControlGroup != null && lastTowerControlGroup != INVALID_ENTITY)
{
cmpPieceObstruction.SetControlGroup2(lastTowerControlGroup);
}
}
else if (existingSecondaryControlGroup != lastTowerControlGroup)
{
error("[TryConstructWall] Existing secondary control group of non-tower entity does not match expected value (2nd pass, iteration " + j + ")");
break;
}
}
}
}
/**
* Remove the given list of entities from their current formations.
*/
function RemoveFromFormation(ents)
{
var formation = ExtractFormations(ents);
for (var fid in formation.members)
{
var cmpFormation = Engine.QueryInterface(+fid, IID_Formation);
if (cmpFormation)
cmpFormation.RemoveMembers(formation.members[fid]);
}
}
/**
* Returns a list of UnitAI components, each belonging either to a
* selected unit or to a formation entity for groups of the selected units.
*/
function GetFormationUnitAIs(ents, player, formName)
{
// If an individual was selected, remove it from any formation
// and command it individually
if (ents.length == 1)
{
// Skip unit if it has no UnitAI
var cmpUnitAI = Engine.QueryInterface(ents[0], IID_UnitAI);
if (!cmpUnitAI)
return [];
RemoveFromFormation(ents);
return [ cmpUnitAI ];
}
// Separate out the units that don't support the chosen formation
var formedEnts = [];
var nonformedUnitAIs = [];
for each (var ent in ents)
{
// Skip units with no UnitAI
var cmpUnitAI = Engine.QueryInterface(ent, IID_UnitAI);
if (!cmpUnitAI)
continue;
var cmpIdentity = Engine.QueryInterface(ent, IID_Identity);
// TODO: We only check if the formation is usable by some units
// if we move them to it. We should check if we can use formations
// for the other cases.
// We only use "LineClosed" instead of "Line Closed" to access the templates.
if (cmpIdentity && cmpIdentity.CanUseFormation(formName === undefined ? "LineClosed" : formName.replace(/\s+/,'')))
formedEnts.push(ent);
else
nonformedUnitAIs.push(cmpUnitAI);
}
if (formedEnts.length == 0)
{
// No units support the foundation - return all the others
return nonformedUnitAIs;
}
// Find what formations the formationable selected entities are currently in
var formation = ExtractFormations(formedEnts);
var formationEnt = undefined;
if (formation.ids.length == 1)
{
// Selected units either belong to this formation or have no formation
// Check that all its members are selected
var fid = formation.ids[0];
var cmpFormation = Engine.QueryInterface(+fid, IID_Formation);
if (cmpFormation && cmpFormation.GetMemberCount() == formation.members[fid].length
&& cmpFormation.GetMemberCount() == formation.entities.length)
{
// The whole formation was selected, so reuse its controller for this command
formationEnt = +fid;
}
}
if (!formationEnt)
{
// We need to give the selected units a new formation controller
// Remove selected units from their current formation
for (var fid in formation.members)
{
var cmpFormation = Engine.QueryInterface(+fid, IID_Formation);
if (cmpFormation)
cmpFormation.RemoveMembers(formation.members[fid]);
}
// Create the new controller
formationEnt = Engine.AddEntity("special/formation");
var cmpFormation = Engine.QueryInterface(formationEnt, IID_Formation);
cmpFormation.SetMembers(formation.entities);
var cmpOwnership = Engine.QueryInterface(formationEnt, IID_Ownership);
cmpOwnership.SetOwner(player);
// If all the selected units were previously in formations of the same shape,
// then set this new formation to that shape too; otherwise use the default shape
var lastFormationName = undefined;
for each (var ent in formation.entities)
{
var cmpUnitAI = Engine.QueryInterface(ent, IID_UnitAI);
if (cmpUnitAI)
{
var name = cmpUnitAI.GetLastFormationName();
if (lastFormationName === undefined)
{
lastFormationName = name;
}
else if (lastFormationName != name)
{
lastFormationName = undefined;
break;
}
}
}
var formationName;
if (lastFormationName)
formationName = lastFormationName;
else
formationName = "Line Closed";
if (CanMoveEntsIntoFormation(formation.entities, formationName))
{
cmpFormation.LoadFormation(formationName);
}
else
{
cmpFormation.LoadFormation("Scatter");
}
}
return nonformedUnitAIs.concat(Engine.QueryInterface(formationEnt, IID_UnitAI));
}
function GetFormationRequirements(formationName)
{
var countRequired = 1;
var classesRequired;
switch(formationName)
{
case "Scatter":
case "Column Closed":
case "Line Closed":
case "Column Open":
case "Line Open":
case "Battle Line":
break;
case "Box":
countRequired = 4;
break;
case "Flank":
countRequired = 8;
break;
case "Skirmish":
classesRequired = ["Ranged"];
break;
case "Wedge":
countRequired = 3;
classesRequired = ["Cavalry"];
break;
case "Phalanx":
countRequired = 10;
classesRequired = ["Melee", "Infantry"];
break;
case "Syntagma":
countRequired = 9;
classesRequired = ["Melee", "Infantry"]; // TODO: pike only
break;
case "Testudo":
countRequired = 9;
classesRequired = ["Melee", "Infantry"];
break;
default:
// We encountered a unknown formation -> warn the user
warn("Commands.js: GetFormationRequirements: unknown formation: " + formationName);
return false;
}
return { "count": countRequired, "classesRequired": classesRequired };
}
function CanMoveEntsIntoFormation(ents, formationName)
{
var count = ents.length;
// TODO: should check the player's civ is allowed to use this formation
// See simulation/components/Player.js GetFormations() for a list of all allowed formations
var requirements = GetFormationRequirements(formationName);
if (!requirements)
return false;
if (count < requirements.count)
return false;
var scatterOnlyUnits = true;
for each (var ent in ents)
{
var cmpIdentity = Engine.QueryInterface(ent, IID_Identity);
if (cmpIdentity)
{
var classes = cmpIdentity.GetClassesList();
if (scatterOnlyUnits && (classes.indexOf("Worker") == -1 || classes.indexOf("Support") == -1))
scatterOnlyUnits = false;
for each (var classRequired in requirements.classesRequired)
{
if (classes.indexOf(classRequired) == -1)
{
return false;
}
}
}
}
if (scatterOnlyUnits)
return false;
return true;
}
/**
* Check if player can control this entity
* returns: true if the entity is valid and owned by the player
* or control all units is activated, else false
*/
function CanControlUnit(entity, player, controlAll)
{
return (IsOwnedByPlayer(player, entity) || controlAll);
}
/**
* Check if player can control this entity
* returns: true if the entity is valid and owned by the player
* or the entity is owned by an mutualAlly
* or control all units is activated, else false
*/
function CanControlUnitOrIsAlly(entity, player, controlAll)
{
return (IsOwnedByPlayer(player, entity) || IsOwnedByMutualAllyOfPlayer(player, entity) || controlAll);
}
/**
* Filter entities which the player can control
*/
function FilterEntityList(entities, player, controlAll)
{
return entities.filter(function(ent) { return CanControlUnit(ent, player, controlAll);} );
}
/**
* Filter entities which the player can control or are mutualAlly
*/
function FilterEntityListWithAllies(entities, player, controlAll)
{
return entities.filter(function(ent) { return CanControlUnitOrIsAlly(ent, player, controlAll);} );
}
/**
* Try to transform a wall to a gate
*/
function TryTransformWallToGate(ent, cmpPlayer, template)
{
var cmpIdentity = Engine.QueryInterface(ent, IID_Identity);
if (!cmpIdentity)
return;
// Check if this is a valid long wall segment
if (!cmpIdentity.HasClass("LongWall"))
{
if (g_DebugCommands)
warn("Invalid command: invalid wall conversion to gate for player "+player+": "+uneval(cmd));
return;
}
var civ = cmpIdentity.GetCiv();
var gate = Engine.AddEntity(template);
var cmpCost = Engine.QueryInterface(gate, IID_Cost);
if (!cmpPlayer.TrySubtractResources(cmpCost.GetResourceCosts()))
{
if (g_DebugCommands)
warn("Invalid command: convert gate cost check failed for player "+player+": "+uneval(cmd));
Engine.DestroyEntity(gate);
return;
}
ReplaceBuildingWith(ent, gate);
}
/**
* Unconditionally replace a building with another one
*/
function ReplaceBuildingWith(ent, building)
{
// Move the building to the right place
var cmpPosition = Engine.QueryInterface(ent, IID_Position);
var cmpBuildingPosition = Engine.QueryInterface(building, IID_Position);
var pos = cmpPosition.GetPosition2D();
cmpBuildingPosition.JumpTo(pos.x, pos.y);
var rot = cmpPosition.GetRotation();
cmpBuildingPosition.SetYRotation(rot.y);
cmpBuildingPosition.SetXZRotation(rot.x, rot.z);
// Copy ownership
var cmpOwnership = Engine.QueryInterface(ent, IID_Ownership);
var cmpBuildingOwnership = Engine.QueryInterface(building, IID_Ownership);
cmpBuildingOwnership.SetOwner(cmpOwnership.GetOwner());
// Copy control groups
var cmpObstruction = Engine.QueryInterface(ent, IID_Obstruction);
var cmpBuildingObstruction = Engine.QueryInterface(building, IID_Obstruction);
cmpBuildingObstruction.SetControlGroup(cmpObstruction.GetControlGroup());
cmpBuildingObstruction.SetControlGroup2(cmpObstruction.GetControlGroup2());
// Copy health level from the old entity to the new
var cmpHealth = Engine.QueryInterface(ent, IID_Health);
var cmpBuildingHealth = Engine.QueryInterface(building, IID_Health);
var healthFraction = Math.max(0, Math.min(1, cmpHealth.GetHitpoints() / cmpHealth.GetMaxHitpoints()));
var buildingHitpoints = Math.round(cmpBuildingHealth.GetMaxHitpoints() * healthFraction);
cmpBuildingHealth.SetHitpoints(buildingHitpoints);
PlaySound("constructed", building);
Engine.PostMessage(ent, MT_ConstructionFinished,
{ "entity": ent, "newentity": building });
Engine.BroadcastMessage(MT_EntityRenamed, { entity: ent, newentity: building });
Engine.DestroyEntity(ent);
}
Engine.RegisterGlobal("GetFormationRequirements", GetFormationRequirements);
Engine.RegisterGlobal("CanMoveEntsIntoFormation", CanMoveEntsIntoFormation);
Engine.RegisterGlobal("ProcessCommand", ProcessCommand);