708 lines
21 KiB
JavaScript
708 lines
21 KiB
JavaScript
// Setting this to true will display some warnings when commands
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// are likely to fail, which may be useful for debugging AIs
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var g_DebugCommands = false;
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function ProcessCommand(player, cmd)
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{
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// Do some basic checks here that commanding player is valid
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var cmpPlayerMan = Engine.QueryInterface(SYSTEM_ENTITY, IID_PlayerManager);
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if (!cmpPlayerMan || player < 0)
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return;
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var playerEnt = cmpPlayerMan.GetPlayerByID(player);
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if (playerEnt == INVALID_ENTITY)
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return;
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var cmpPlayer = Engine.QueryInterface(playerEnt, IID_Player);
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if (!cmpPlayer)
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return;
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var controlAllUnits = cmpPlayer.CanControlAllUnits();
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// Note: checks of UnitAI targets are not robust enough here, as ownership
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// can change after the order is issued, they should be checked by UnitAI
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// when the specific behavior (e.g. attack, garrison) is performed.
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// (Also it's not ideal if a command silently fails, it's nicer if UnitAI
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// moves the entities closer to the target before giving up.)
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// Now handle various commands
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switch (cmd.type)
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{
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case "debug-print":
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print(cmd.message);
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break;
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case "chat":
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var cmpGuiInterface = Engine.QueryInterface(SYSTEM_ENTITY, IID_GuiInterface);
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cmpGuiInterface.PushNotification({"type": "chat", "player": player, "message": cmd.message});
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break;
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case "control-all":
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cmpPlayer.SetControlAllUnits(cmd.flag);
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break;
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case "reveal-map":
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// Reveal the map for all players, not just the current player,
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// primarily to make it obvious to everyone that the player is cheating
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var cmpRangeManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_RangeManager);
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cmpRangeManager.SetLosRevealAll(-1, cmd.enable);
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break;
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case "walk":
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var entities = FilterEntityList(cmd.entities, player, controlAllUnits);
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GetFormationUnitAIs(entities).forEach(function(cmpUnitAI) {
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cmpUnitAI.Walk(cmd.x, cmd.z, cmd.queued);
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});
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break;
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case "attack":
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if (g_DebugCommands && !IsOwnedByEnemyOfPlayer(player, cmd.target))
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{
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// This check is for debugging only!
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warn("Invalid command: attack target is not owned by enemy of player "+player+": "+uneval(cmd));
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}
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// See UnitAI.CanAttack for target checks
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var entities = FilterEntityList(cmd.entities, player, controlAllUnits);
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GetFormationUnitAIs(entities).forEach(function(cmpUnitAI) {
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cmpUnitAI.Attack(cmd.target, cmd.queued);
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});
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break;
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case "repair":
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// This covers both repairing damaged buildings, and constructing unfinished foundations
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if (g_DebugCommands && !IsOwnedByAllyOfPlayer(player, cmd.target))
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{
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// This check is for debugging only!
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warn("Invalid command: repair target is not owned by ally of player "+player+": "+uneval(cmd));
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}
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// See UnitAI.CanRepair for target checks
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var entities = FilterEntityList(cmd.entities, player, controlAllUnits);
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GetFormationUnitAIs(entities).forEach(function(cmpUnitAI) {
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cmpUnitAI.Repair(cmd.target, cmd.autocontinue, cmd.queued);
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});
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break;
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case "gather":
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if (g_DebugCommands && !(IsOwnedByPlayer(player, cmd.target) || IsOwnedByGaia(cmd.target)))
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{
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// This check is for debugging only!
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warn("Invalid command: resource is not owned by gaia or player "+player+": "+uneval(cmd));
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}
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// See UnitAI.CanGather for target checks
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var entities = FilterEntityList(cmd.entities, player, controlAllUnits);
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GetFormationUnitAIs(entities).forEach(function(cmpUnitAI) {
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cmpUnitAI.Gather(cmd.target, cmd.queued);
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});
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break;
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case "gather-near-position":
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var entities = FilterEntityList(cmd.entities, player, controlAllUnits);
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GetFormationUnitAIs(entities).forEach(function(cmpUnitAI) {
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cmpUnitAI.GatherNearPosition(cmd.x, cmd.z, cmd.resourceType, cmd.queued);
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});
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break;
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case "returnresource":
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// Check dropsite is owned by player
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if (g_DebugCommands && IsOwnedByPlayer(player, cmd.target))
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{
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// This check is for debugging only!
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warn("Invalid command: dropsite is not owned by player "+player+": "+uneval(cmd));
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}
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// See UnitAI.CanReturnResource for target checks
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var entities = FilterEntityList(cmd.entities, player, controlAllUnits);
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GetFormationUnitAIs(entities).forEach(function(cmpUnitAI) {
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cmpUnitAI.ReturnResource(cmd.target, cmd.queued);
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});
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break;
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case "train":
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// Verify that the building can be controlled by the player
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if (CanControlUnit(cmd.entity, player, controlAllUnits))
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{
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var queue = Engine.QueryInterface(cmd.entity, IID_TrainingQueue);
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if (queue)
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queue.AddBatch(cmd.template, +cmd.count, cmd.metadata);
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}
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else if (g_DebugCommands)
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{
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warn("Invalid command: training building cannot be controlled by player "+player+": "+uneval(cmd));
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}
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break;
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case "stop-train":
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// Verify that the building can be controlled by the player
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if (CanControlUnit(cmd.entity, player, controlAllUnits))
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{
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var queue = Engine.QueryInterface(cmd.entity, IID_TrainingQueue);
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if (queue)
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queue.RemoveBatch(cmd.id);
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}
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else if (g_DebugCommands)
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{
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warn("Invalid command: training building cannot be controlled by player "+player+": "+uneval(cmd));
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}
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break;
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case "construct":
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// Message structure:
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// {
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// "type": "construct",
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// "entities": [...],
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// "template": "...",
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// "x": ...,
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// "z": ...,
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// "angle": ...,
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// "autorepair": true, // whether to automatically start constructing/repairing the new foundation
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// "autocontinue": true, // whether to automatically gather/build/etc after finishing this
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// "queued": true,
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// }
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/*
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* Construction process:
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* . Take resources away immediately.
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* . Create a foundation entity with 1hp, 0% build progress.
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* . Increase hp and build progress up to 100% when people work on it.
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* . If it's destroyed, an appropriate fraction of the resource cost is refunded.
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* . If it's completed, it gets replaced with the real building.
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*/
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// Check that we can control these units
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var entities = FilterEntityList(cmd.entities, player, controlAllUnits);
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if (!entities.length)
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break;
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// Tentatively create the foundation (we might find later that it's a invalid build command)
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var ent = Engine.AddEntity("foundation|" + cmd.template);
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if (ent == INVALID_ENTITY)
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{
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// Error (e.g. invalid template names)
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error("Error creating foundation entity for '" + cmd.template + "'");
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break;
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}
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// Move the foundation to the right place
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var cmpPosition = Engine.QueryInterface(ent, IID_Position);
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cmpPosition.JumpTo(cmd.x, cmd.z);
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cmpPosition.SetYRotation(cmd.angle);
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// Check whether it's obstructed by other entities or invalid terrain
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var cmpBuildRestrictions = Engine.QueryInterface(ent, IID_BuildRestrictions);
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if (!cmpBuildRestrictions || !cmpBuildRestrictions.CheckPlacement(player))
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{
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if (g_DebugCommands)
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{
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warn("Invalid command: build restrictions check failed for player "+player+": "+uneval(cmd));
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}
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var cmpGuiInterface = Engine.QueryInterface(SYSTEM_ENTITY, IID_GuiInterface);
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cmpGuiInterface.PushNotification({ "player": player, "message": "Building site was obstructed" });
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// Remove the foundation because the construction was aborted
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Engine.DestroyEntity(ent);
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break;
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}
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// Check build limits
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var cmpBuildLimits = QueryPlayerIDInterface(player, IID_BuildLimits);
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if (!cmpBuildLimits || !cmpBuildLimits.AllowedToBuild(cmpBuildRestrictions.GetCategory()))
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{
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if (g_DebugCommands)
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{
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warn("Invalid command: build limits check failed for player "+player+": "+uneval(cmd));
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}
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// TODO: The UI should tell the user they can't build this (but we still need this check)
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// Remove the foundation because the construction was aborted
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Engine.DestroyEntity(ent);
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break;
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}
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// TODO: AI has no visibility info
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if (!cmpPlayer.IsAI())
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{
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// Check whether it's in a visible or fogged region
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// tell GetLosVisibility to force RetainInFog because preview entities set this to false,
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// which would show them as hidden instead of fogged
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var cmpRangeManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_RangeManager);
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var visible = (cmpRangeManager && cmpRangeManager.GetLosVisibility(ent, player, true) != "hidden");
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if (!visible)
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{
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if (g_DebugCommands)
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{
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warn("Invalid command: foundation visibility check failed for player "+player+": "+uneval(cmd));
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}
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var cmpGuiInterface = Engine.QueryInterface(SYSTEM_ENTITY, IID_GuiInterface);
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cmpGuiInterface.PushNotification({ "player": player, "message": "Building site was not visible" });
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Engine.DestroyEntity(ent);
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break;
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}
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}
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var cmpCost = Engine.QueryInterface(ent, IID_Cost);
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if (!cmpPlayer.TrySubtractResources(cmpCost.GetResourceCosts()))
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{
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if (g_DebugCommands)
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{
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warn("Invalid command: building cost check failed for player "+player+": "+uneval(cmd));
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}
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Engine.DestroyEntity(ent);
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break;
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}
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// Make it owned by the current player
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var cmpOwnership = Engine.QueryInterface(ent, IID_Ownership);
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cmpOwnership.SetOwner(player);
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// Initialise the foundation
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var cmpFoundation = Engine.QueryInterface(ent, IID_Foundation);
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cmpFoundation.InitialiseConstruction(player, cmd.template);
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// Tell the units to start building this new entity
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if (cmd.autorepair)
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{
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ProcessCommand(player, {
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"type": "repair",
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"entities": entities,
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"target": ent,
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"autocontinue": cmd.autocontinue,
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"queued": cmd.queued
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});
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}
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break;
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case "delete-entities":
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var entities = FilterEntityList(cmd.entities, player, controlAllUnits);
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for each (var ent in entities)
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{
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var cmpHealth = Engine.QueryInterface(ent, IID_Health);
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if (cmpHealth)
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cmpHealth.Kill();
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else
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Engine.DestroyEntity(ent);
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}
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break;
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case "set-rallypoint":
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var entities = FilterEntityList(cmd.entities, player, controlAllUnits);
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for each (var ent in entities)
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{
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var cmpRallyPoint = Engine.QueryInterface(ent, IID_RallyPoint);
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if (cmpRallyPoint)
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{
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cmpRallyPoint.SetPosition(cmd.x, cmd.z);
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cmpRallyPoint.SetData(cmd.data);
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}
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}
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break;
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case "unset-rallypoint":
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var entities = FilterEntityList(cmd.entities, player, controlAllUnits);
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for each (var ent in entities)
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{
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var cmpRallyPoint = Engine.QueryInterface(ent, IID_RallyPoint);
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if (cmpRallyPoint)
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cmpRallyPoint.Unset();
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}
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break;
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case "defeat-player":
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// Send "OnPlayerDefeated" message to player
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Engine.PostMessage(playerEnt, MT_PlayerDefeated, { "playerId": player } );
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break;
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case "garrison":
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// Verify that the building can be controlled by the player
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if (CanControlUnit(cmd.target, player, controlAllUnits))
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{
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var entities = FilterEntityList(cmd.entities, player, controlAllUnits);
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GetFormationUnitAIs(entities).forEach(function(cmpUnitAI) {
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cmpUnitAI.Garrison(cmd.target);
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});
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}
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else if (g_DebugCommands)
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{
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warn("Invalid command: garrison target cannot be controlled by player "+player+": "+uneval(cmd));
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}
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break;
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case "unload":
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// Verify that the building can be controlled by the player
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if (CanControlUnit(cmd.garrisonHolder, player, controlAllUnits))
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{
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var cmpGarrisonHolder = Engine.QueryInterface(cmd.garrisonHolder, IID_GarrisonHolder);
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if (!cmpGarrisonHolder || !cmpGarrisonHolder.Unload(cmd.entity))
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{
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var cmpPlayer = QueryPlayerIDInterface(player, IID_Player);
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var notification = {"player": cmpPlayer.GetPlayerID(), "message": "Unable to ungarrison unit"};
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var cmpGUIInterface = Engine.QueryInterface(SYSTEM_ENTITY, IID_GuiInterface);
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cmpGUIInterface.PushNotification(notification);
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}
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}
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else if (g_DebugCommands)
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{
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warn("Invalid command: unload target cannot be controlled by player "+player+": "+uneval(cmd));
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}
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break;
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case "unload-all":
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// Verify that the building can be controlled by the player
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if (CanControlUnit(cmd.garrisonHolder, player, controlAllUnits))
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{
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var cmpGarrisonHolder = Engine.QueryInterface(cmd.garrisonHolder, IID_GarrisonHolder);
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if (!cmpGarrisonHolder || !cmpGarrisonHolder.UnloadAll())
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{
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var cmpPlayer = QueryPlayerIDInterface(player, IID_Player);
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var notification = {"player": cmpPlayer.GetPlayerID(), "message": "Unable to ungarrison all units"};
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var cmpGUIInterface = Engine.QueryInterface(SYSTEM_ENTITY, IID_GuiInterface);
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cmpGUIInterface.PushNotification(notification);
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}
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}
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else if (g_DebugCommands)
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{
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warn("Invalid command: unload-all target cannot be controlled by player "+player+": "+uneval(cmd));
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}
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break;
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case "formation":
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var entities = FilterEntityList(cmd.entities, player, controlAllUnits);
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GetFormationUnitAIs(entities).forEach(function(cmpUnitAI) {
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var cmpFormation = Engine.QueryInterface(cmpUnitAI.entity, IID_Formation);
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if (!cmpFormation)
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return;
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cmpFormation.LoadFormation(cmd.name);
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cmpFormation.MoveMembersIntoFormation(true);
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});
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break;
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case "promote":
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// No need to do checks here since this is a cheat anyway
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var cmpGuiInterface = Engine.QueryInterface(SYSTEM_ENTITY, IID_GuiInterface);
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cmpGuiInterface.PushNotification({"type": "chat", "player": player, "message": "(Cheat - promoted units)"});
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for each (var ent in cmd.entities)
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{
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var cmpPromotion = Engine.QueryInterface(ent, IID_Promotion);
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if (cmpPromotion)
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cmpPromotion.IncreaseXp(cmpPromotion.GetRequiredXp() - cmpPromotion.GetCurrentXp());
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}
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break;
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case "stance":
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var entities = FilterEntityList(cmd.entities, player, controlAllUnits);
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for each (var ent in entities)
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{
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var cmpUnitAI = Engine.QueryInterface(ent, IID_UnitAI);
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if (cmpUnitAI)
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cmpUnitAI.SwitchToStance(cmd.name);
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}
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break;
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case "setup-trade-route":
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for each (var ent in cmd.entities)
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{
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var cmpUnitAI = Engine.QueryInterface(ent, IID_UnitAI);
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if (cmpUnitAI)
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cmpUnitAI.SetupTradeRoute(cmd.target);
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}
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break;
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case "select-trading-goods":
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var cmpTrader = Engine.QueryInterface(cmd.trader, IID_Trader);
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if (cmpTrader)
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cmpTrader.SetPreferredGoods(cmd.preferredGoods);
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break;
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case "barter":
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var cmpBarter = Engine.QueryInterface(SYSTEM_ENTITY, IID_Barter);
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cmpBarter.ExchangeResources(playerEnt, cmd.sell, cmd.buy, cmd.amount);
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break;
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default:
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error("Invalid command: unknown command type: "+uneval(cmd));
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}
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}
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/**
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* Get some information about the formations used by entities.
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* The entities must have a UnitAI component.
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*/
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function ExtractFormations(ents)
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{
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var entities = []; // subset of ents that have UnitAI
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var members = {}; // { formationentity: [ent, ent, ...], ... }
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for each (var ent in ents)
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{
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var cmpUnitAI = Engine.QueryInterface(ent, IID_UnitAI);
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var fid = cmpUnitAI.GetFormationController();
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if (fid != INVALID_ENTITY)
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{
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if (!members[fid])
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members[fid] = [];
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members[fid].push(ent);
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}
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entities.push(ent);
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}
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var ids = [ id for (id in members) ];
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return { "entities": entities, "members": members, "ids": ids };
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}
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/**
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* Remove the given list of entities from their current formations.
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*/
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function RemoveFromFormation(ents)
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{
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var formation = ExtractFormations(ents);
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for (var fid in formation.members)
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{
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var cmpFormation = Engine.QueryInterface(+fid, IID_Formation);
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if (cmpFormation)
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cmpFormation.RemoveMembers(formation.members[fid]);
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}
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}
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/**
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* Returns a list of UnitAI components, each belonging either to a
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* selected unit or to a formation entity for groups of the selected units.
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*/
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function GetFormationUnitAIs(ents)
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{
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// If an individual was selected, remove it from any formation
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// and command it individually
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if (ents.length == 1)
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{
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// Skip unit if it has no UnitAI
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var cmpUnitAI = Engine.QueryInterface(ents[0], IID_UnitAI);
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if (!cmpUnitAI)
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return [];
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RemoveFromFormation(ents);
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return [ cmpUnitAI ];
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}
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// Separate out the units that don't support the chosen formation
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var formedEnts = [];
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var nonformedUnitAIs = [];
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for each (var ent in ents)
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{
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// Skip units with no UnitAI
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var cmpUnitAI = Engine.QueryInterface(ent, IID_UnitAI);
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if (!cmpUnitAI)
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continue;
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var cmpIdentity = Engine.QueryInterface(ent, IID_Identity);
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// TODO: Currently we use LineClosed as effectively a boolean flag
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// to determine whether formations are allowed at all. Instead we
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// should check specific formation names and do something sensible
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// (like what?) when some units don't support them.
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// TODO: We'll also need to fix other formation code to use
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// "LineClosed" instead of "Line Closed" etc consistently.
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if (cmpIdentity && cmpIdentity.CanUseFormation("LineClosed"))
|
|
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 all belong to the same formation.
|
|
// Check that it doesn't have any other members
|
|
var fid = formation.ids[0];
|
|
var cmpFormation = Engine.QueryInterface(+fid, IID_Formation);
|
|
if (cmpFormation && 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);
|
|
|
|
// 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("Loose");
|
|
}
|
|
}
|
|
|
|
return nonformedUnitAIs.concat(Engine.QueryInterface(formationEnt, IID_UnitAI));
|
|
}
|
|
|
|
function CanMoveEntsIntoFormation(ents, formationName)
|
|
{
|
|
var count = ents.length;
|
|
var classesRequired;
|
|
|
|
// TODO: should check the player's civ is allowed to use this formation
|
|
|
|
if (formationName == "Loose")
|
|
{
|
|
return true;
|
|
}
|
|
else if (formationName == "Box")
|
|
{
|
|
if (count < 4)
|
|
return false;
|
|
}
|
|
else if (formationName == "Column Closed")
|
|
{
|
|
}
|
|
else if (formationName == "Line Closed")
|
|
{
|
|
}
|
|
else if (formationName == "Column Open")
|
|
{
|
|
}
|
|
else if (formationName == "Line Open")
|
|
{
|
|
}
|
|
else if (formationName == "Flank")
|
|
{
|
|
if (count < 8)
|
|
return false;
|
|
}
|
|
else if (formationName == "Skirmish")
|
|
{
|
|
classesRequired = ["Ranged"];
|
|
}
|
|
else if (formationName == "Wedge")
|
|
{
|
|
if (count < 3)
|
|
return false;
|
|
classesRequired = ["Cavalry"];
|
|
}
|
|
else if (formationName == "Formation12")
|
|
{
|
|
}
|
|
else if (formationName == "Phalanx")
|
|
{
|
|
if (count < 10)
|
|
return false;
|
|
classesRequired = ["Melee", "Infantry"];
|
|
}
|
|
else if (formationName == "Syntagma")
|
|
{
|
|
if (count < 9)
|
|
return false;
|
|
classesRequired = ["Melee", "Infantry"]; // TODO: pike only
|
|
}
|
|
else if (formationName == "Testudo")
|
|
{
|
|
if (count < 9)
|
|
return false;
|
|
classesRequired = ["Melee", "Infantry"];
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
|
|
var looseOnlyUnits = true;
|
|
for each (var ent in ents)
|
|
{
|
|
var cmpIdentity = Engine.QueryInterface(ent, IID_Identity);
|
|
if (cmpIdentity)
|
|
{
|
|
var classes = cmpIdentity.GetClassesList();
|
|
if (looseOnlyUnits && (classes.indexOf("Worker") == -1 || classes.indexOf("Support") == -1))
|
|
looseOnlyUnits = false;
|
|
for each (var classRequired in classesRequired)
|
|
{
|
|
if (classes.indexOf(classRequired) == -1)
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (looseOnlyUnits)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Check if player can control this entity
|
|
* returns: true if the entity is valid and owned by the player if
|
|
* or control all units is activated for the player, else false
|
|
*/
|
|
function CanControlUnit(entity, player, controlAll)
|
|
{
|
|
return (IsOwnedByPlayer(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);} );
|
|
}
|
|
|
|
Engine.RegisterGlobal("CanMoveEntsIntoFormation", CanMoveEntsIntoFormation);
|
|
Engine.RegisterGlobal("ProcessCommand", ProcessCommand);
|