/
input.js
1903 lines (1681 loc) · 53.3 KB
/
input.js
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const SDL_BUTTON_LEFT = 1;
const SDL_BUTTON_MIDDLE = 2;
const SDL_BUTTON_RIGHT = 3;
const SDLK_LEFTBRACKET = 91;
const SDLK_RIGHTBRACKET = 93;
const SDLK_RSHIFT = 303;
const SDLK_LSHIFT = 304;
const SDLK_RCTRL = 305;
const SDLK_LCTRL = 306;
const SDLK_RALT = 307;
const SDLK_LALT = 308;
// TODO: these constants should be defined somewhere else instead, in
// case any other code wants to use them too
const ACTION_NONE = 0;
const ACTION_GARRISON = 1;
const ACTION_REPAIR = 2;
const ACTION_GUARD = 3;
var preSelectedAction = ACTION_NONE;
const INPUT_NORMAL = 0;
const INPUT_SELECTING = 1;
const INPUT_BANDBOXING = 2;
const INPUT_BUILDING_PLACEMENT = 3;
const INPUT_BUILDING_CLICK = 4;
const INPUT_BUILDING_DRAG = 5;
const INPUT_BATCHTRAINING = 6;
const INPUT_PRESELECTEDACTION = 7;
const INPUT_BUILDING_WALL_CLICK = 8;
const INPUT_BUILDING_WALL_PATHING = 9;
const INPUT_MASSTRIBUTING = 10;
var inputState = INPUT_NORMAL;
const INVALID_ENTITY = 0;
var mouseX = 0;
var mouseY = 0;
var mouseIsOverObject = false;
// Number of pixels the mouse can move before the action is considered a drag
var maxDragDelta = 4;
// Time in milliseconds in which a double click is recognized
const doubleClickTime = 500;
var doubleClickTimer = 0;
var doubleClicked = false;
// Store the previously clicked entity - ensure a double/triple click happens on the same entity
var prevClickedEntity = 0;
// Same double-click behaviour for hotkey presses
const doublePressTime = 500;
var doublePressTimer = 0;
var prevHotkey = 0;
function updateCursorAndTooltip()
{
var cursorSet = false;
var tooltipSet = false;
var informationTooltip = Engine.GetGUIObjectByName("informationTooltip");
if (!mouseIsOverObject && (inputState == INPUT_NORMAL || inputState == INPUT_PRESELECTEDACTION))
{
let action = determineAction(mouseX, mouseY);
if (action)
{
if (action.cursor)
{
Engine.SetCursor(action.cursor);
cursorSet = true;
}
if (action.tooltip)
{
tooltipSet = true;
informationTooltip.caption = action.tooltip;
informationTooltip.hidden = false;
}
}
}
if (!cursorSet)
Engine.SetCursor("arrow-default");
if (!tooltipSet)
informationTooltip.hidden = true;
var placementTooltip = Engine.GetGUIObjectByName("placementTooltip");
if (placementSupport.tooltipMessage)
placementTooltip.sprite = placementSupport.tooltipError ? "BackgroundErrorTooltip" : "BackgroundInformationTooltip";
placementTooltip.caption = placementSupport.tooltipMessage || "";
placementTooltip.hidden = !placementSupport.tooltipMessage;
}
function updateBuildingPlacementPreview()
{
// The preview should be recomputed every turn, so that it responds to obstructions/fog/etc moving underneath it, or
// in the case of the wall previews, in response to new tower foundations getting constructed for it to snap to.
// See onSimulationUpdate in session.js.
if (placementSupport.mode === "building")
{
if (placementSupport.template && placementSupport.position)
{
var result = Engine.GuiInterfaceCall("SetBuildingPlacementPreview", {
"template": placementSupport.template,
"x": placementSupport.position.x,
"z": placementSupport.position.z,
"angle": placementSupport.angle,
"actorSeed": placementSupport.actorSeed
});
// Show placement info tooltip if invalid position
placementSupport.tooltipError = !result.success;
placementSupport.tooltipMessage = "";
if (!result.success)
{
if (result.message && result.parameters)
{
var message = result.message;
if (result.translateMessage)
if (result.pluralMessage)
message = translatePlural(result.message, result.pluralMessage, result.pluralCount);
else
message = translate(message);
var parameters = result.parameters;
if (result.translateParameters)
translateObjectKeys(parameters, result.translateParameters);
placementSupport.tooltipMessage = sprintf(message, parameters);
}
return false;
}
if (placementSupport.attack && placementSupport.attack.Ranged)
{
// building can be placed here, and has an attack
// show the range advantage in the tooltip
var cmd = {
"x": placementSupport.position.x,
"z": placementSupport.position.z,
"range": placementSupport.attack.Ranged.maxRange,
"elevationBonus": placementSupport.attack.Ranged.elevationBonus,
};
var averageRange = Math.round(Engine.GuiInterfaceCall("GetAverageRangeForBuildings", cmd) - cmd.range);
var range = Math.round(cmd.range);
placementSupport.tooltipMessage = sprintf(translatePlural("Basic range: %(range)s meter", "Basic range: %(range)s meters", range), { "range": range }) + "\n" +
sprintf(translatePlural("Average bonus range: %(range)s meter", "Average bonus range: %(range)s meters", averageRange), { "range": averageRange });
}
return true;
}
}
else if (placementSupport.mode === "wall")
{
if (placementSupport.wallSet && placementSupport.position)
{
// Fetch an updated list of snapping candidate entities
placementSupport.wallSnapEntities = Engine.PickSimilarPlayerEntities(
placementSupport.wallSet.templates.tower,
placementSupport.wallSnapEntitiesIncludeOffscreen,
true, // require exact template match
true // include foundations
);
return Engine.GuiInterfaceCall("SetWallPlacementPreview", {
"wallSet": placementSupport.wallSet,
"start": placementSupport.position,
"end": placementSupport.wallEndPosition,
"snapEntities": placementSupport.wallSnapEntities, // snapping entities (towers) for starting a wall segment
});
}
}
return false;
}
function findGatherType(gatherer, supply)
{
if (!("resourceGatherRates" in gatherer) || !gatherer.resourceGatherRates || !supply)
return undefined;
if (gatherer.resourceGatherRates[supply.type.generic+"."+supply.type.specific])
return supply.type.specific;
if (gatherer.resourceGatherRates[supply.type.generic])
return supply.type.generic;
return undefined;
}
function getActionInfo(action, target)
{
var simState = GetSimState();
var selection = g_Selection.toList();
// If the selection doesn't exist, no action
var entState = GetEntityState(selection[0]);
if (!entState)
return { "possible": false };
if (!target) // TODO move these non-target actions to an object like unit_actions.js
{
if (action == "set-rallypoint")
{
var cursor = "";
var data = { "command": "walk" };
if (Engine.HotkeyIsPressed("session.attackmove"))
{
data.command = "attack-walk";
data.targetClasses = Engine.HotkeyIsPressed("session.attackmoveUnit") ? { "attack": ["Unit"] } : { "attack": ["Unit", "Structure"] };
cursor = "action-attack-move";
}
return { "possible": true, "data": data, "cursor": cursor };
}
return { "possible": (action == "move" || action == "attack-move" || action == "remove-guard") };
}
// Look at the first targeted entity
// (TODO: maybe we eventually want to look at more, and be more context-sensitive?
// e.g. prefer to attack an enemy unit, even if some friendly units are closer to the mouse)
var targetState = GetExtendedEntityState(target);
// Check if the target entity is a resource, dropsite, foundation, or enemy unit.
// Check if any entities in the selection can gather the requested resource,
// can return to the dropsite, can build the foundation, or can attack the enemy
for each (var entityID in selection)
{
var entState = GetExtendedEntityState(entityID);
if (!entState)
continue;
if (unitActions[action] && unitActions[action].getActionInfo)
{
var r = unitActions[action].getActionInfo(entState, targetState, simState);
if (r) // return true if it's possible for one of the entities
return r;
}
}
return { "possible": false };
}
/**
* Determine the context-sensitive action that should be performed when the mouse is at (x,y)
*/
function determineAction(x, y, fromMinimap)
{
var selection = g_Selection.toList();
// No action if there's no selection
if (!selection.length)
{
preSelectedAction = ACTION_NONE;
return undefined;
}
// If the selection doesn't exist, no action
var entState = GetEntityState(selection[0]);
if (!entState)
return undefined;
// If the selection isn't friendly units, no action
var allOwnedByPlayer = selection.every(function(ent) {
var entState = GetEntityState(ent);
return entState && entState.player == g_ViewedPlayer;
});
if (!g_DevSettings.controlAll && !allOwnedByPlayer)
return undefined;
var target = undefined;
if (!fromMinimap)
{
var ent = Engine.PickEntityAtPoint(x, y);
if (ent != INVALID_ENTITY)
target = ent;
}
// decide between the following ordered actions
// if two actions are possible, the first one is taken
// so the most specific should appear first
var actions = Object.keys(unitActions).slice();
actions.sort((a, b) => unitActions[a].specificness - unitActions[b].specificness);
var actionInfo = undefined;
if (preSelectedAction != ACTION_NONE)
{
for (var action of actions)
{
if (unitActions[action].preSelectedActionCheck)
{
var r = unitActions[action].preSelectedActionCheck(target, selection);
if (r)
return r;
}
}
return { "type": "none", "cursor": "", "target": target };
}
for (var action of actions)
{
if (unitActions[action].hotkeyActionCheck)
{
var r = unitActions[action].hotkeyActionCheck(target, selection);
if (r)
return r;
}
}
for (var action of actions)
{
if (unitActions[action].actionCheck)
{
var r = unitActions[action].actionCheck(target, selection);
if (r)
return r;
}
}
return { "type": "none", "cursor": "", "target": target };
}
var dragStart; // used for remembering mouse coordinates at start of drag operations
function tryPlaceBuilding(queued)
{
if (placementSupport.mode !== "building")
{
error(sprintf("[%(functionName)s] Called while in '%(mode)s' placement mode instead of 'building'", {
"functionName": "tryPlaceBuilding",
"mode": placementSupport.mode
}));
return false;
}
// Use the preview to check it's a valid build location
if (!updateBuildingPlacementPreview())
{
// invalid location - don't build it
// TODO: play a sound?
return false;
}
var selection = g_Selection.toList();
// Start the construction
Engine.PostNetworkCommand({
"type": "construct",
"template": placementSupport.template,
"x": placementSupport.position.x,
"z": placementSupport.position.z,
"angle": placementSupport.angle,
"actorSeed": placementSupport.actorSeed,
"entities": selection,
"autorepair": true,
"autocontinue": true,
"queued": queued
});
Engine.GuiInterfaceCall("PlaySound", { "name": "order_repair", "entity": selection[0] });
if (!queued)
placementSupport.Reset();
else
placementSupport.RandomizeActorSeed();
return true;
}
function tryPlaceWall(queued)
{
if (placementSupport.mode !== "wall")
{
error(sprintf("[%(functionName)s] Called while in '%(mode)s' placement mode; expected 'wall' mode", {
functionName: "tryPlaceWall",
mode: placementSupport.mode
}));
return false;
}
var wallPlacementInfo = updateBuildingPlacementPreview(); // entities making up the wall (wall segments, towers, ...)
if (!(wallPlacementInfo === false || typeof(wallPlacementInfo) === "object"))
{
error(sprintf("[%(functionName)s] Unexpected return value from %(function2Name)s: '%(value)s'; expected either 'false' or 'object'", {
functionName: "tryPlaceWall",
function2Name: "updateBuildingPlacementPreview",
value: uneval(placementInfo)
}));
return false;
}
if (!wallPlacementInfo)
return false;
var selection = g_Selection.toList();
var cmd = {
"type": "construct-wall",
"autorepair": true,
"autocontinue": true,
"queued": queued,
"entities": selection,
"wallSet": placementSupport.wallSet,
"pieces": wallPlacementInfo.pieces,
"startSnappedEntity": wallPlacementInfo.startSnappedEnt,
"endSnappedEntity": wallPlacementInfo.endSnappedEnt,
};
// make sure that there's at least one non-tower entity getting built, to prevent silly edge cases where the start and end
// point are too close together for the algorithm to place a wall segment inbetween, and only the towers are being previewed
// (this is somewhat non-ideal and hardcode-ish)
var hasWallSegment = false;
for (let piece of cmd.pieces)
{
if (piece.template != cmd.wallSet.templates.tower) // TODO: hardcode-ish :(
{
hasWallSegment = true;
break;
}
}
if (hasWallSegment)
{
Engine.PostNetworkCommand(cmd);
Engine.GuiInterfaceCall("PlaySound", { "name": "order_repair", "entity": selection[0] });
}
return true;
}
// Updates the bandbox object with new positions and visibility.
// The coordinates [x0, y0, x1, y1] are returned for further use.
function updateBandbox(bandbox, ev, hidden)
{
var x0 = dragStart[0];
var y0 = dragStart[1];
var x1 = ev.x;
var y1 = ev.y;
// normalize the orientation of the rectangle
if (x0 > x1) { let t = x0; x0 = x1; x1 = t; }
if (y0 > y1) { let t = y0; y0 = y1; y1 = t; }
bandbox.size = [x0, y0, x1, y1].join(" ");
bandbox.hidden = hidden;
return [x0, y0, x1, y1];
}
// Define some useful unit filters for getPreferredEntities
var unitFilters = {
"isUnit": function (entity) {
var entState = GetEntityState(entity);
if (!entState)
return false;
return hasClass(entState, "Unit");
},
"isDefensive": function (entity) {
var entState = GetEntityState(entity);
if (!entState)
return false;
return hasClass(entState, "Defensive");
},
"isNotSupport": function (entity) {
var entState = GetEntityState(entity);
if (!entState)
return false;
return hasClass(entState, "Unit") && !hasClass(entState, "Support") && !hasClass(entState, "Domestic");
},
"isIdle": function (entity) {
var entState = GetEntityState(entity);
if (!entState)
return false;
return hasClass(entState, "Unit") && entState.unitAI && entState.unitAI.isIdle;
},
"isAnything": function (entity) {
return true;
}
};
// Choose, inside a list of entities, which ones will be selected.
// We may use several entity filters, until one returns at least one element.
function getPreferredEntities(ents)
{
// Default filters
var filters = [unitFilters.isUnit, unitFilters.isDefensive, unitFilters.isAnything];
// Handle hotkeys
if (Engine.HotkeyIsPressed("selection.milonly"))
filters = [unitFilters.isNotSupport];
if (Engine.HotkeyIsPressed("selection.idleonly"))
filters = [unitFilters.isIdle];
var preferredEnts = [];
for (var i = 0; i < filters.length; ++i)
{
preferredEnts = ents.filter(filters[i]);
if (preferredEnts.length > 0)
break;
}
return preferredEnts;
}
function handleInputBeforeGui(ev, hoveredObject)
{
// Capture mouse position so we can use it for displaying cursors,
// and key states
switch (ev.type)
{
case "mousebuttonup":
case "mousebuttondown":
case "mousemotion":
mouseX = ev.x;
mouseY = ev.y;
break;
}
// Remember whether the mouse is over a GUI object or not
mouseIsOverObject = (hoveredObject != null);
// Close the menu when interacting with the game world
if (!mouseIsOverObject && (ev.type =="mousebuttonup" || ev.type == "mousebuttondown")
&& (ev.button == SDL_BUTTON_LEFT || ev.button == SDL_BUTTON_RIGHT))
closeMenu();
// State-machine processing:
//
// (This is for states which should override the normal GUI processing - events will
// be processed here before being passed on, and propagation will stop if this function
// returns true)
//
// TODO: it'd probably be nice to have a better state-machine system, with guaranteed
// entry/exit functions, since this is a bit broken now
switch (inputState)
{
case INPUT_BANDBOXING:
var bandbox = Engine.GetGUIObjectByName("bandbox");
switch (ev.type)
{
case "mousemotion":
var rect = updateBandbox(bandbox, ev, false);
var ents = Engine.PickPlayerEntitiesInRect(rect[0], rect[1], rect[2], rect[3], g_IsObserver ? -1 : Engine.GetPlayerID());
var preferredEntities = getPreferredEntities(ents);
g_Selection.setHighlightList(preferredEntities);
return false;
case "mousebuttonup":
if (ev.button == SDL_BUTTON_LEFT)
{
var rect = updateBandbox(bandbox, ev, true);
// Get list of entities limited to preferred entities
var ents = getPreferredEntities(Engine.PickPlayerEntitiesInRect(rect[0], rect[1], rect[2], rect[3], g_IsObserver ? -1 : Engine.GetPlayerID()));
// Remove the bandbox hover highlighting
g_Selection.setHighlightList([]);
// Update the list of selected units
if (Engine.HotkeyIsPressed("selection.add"))
{
g_Selection.addList(ents);
}
else if (Engine.HotkeyIsPressed("selection.remove"))
{
g_Selection.removeList(ents);
}
else
{
g_Selection.reset();
g_Selection.addList(ents);
}
inputState = INPUT_NORMAL;
return true;
}
else if (ev.button == SDL_BUTTON_RIGHT)
{
// Cancel selection
bandbox.hidden = true;
g_Selection.setHighlightList([]);
inputState = INPUT_NORMAL;
return true;
}
break;
}
break;
case INPUT_BUILDING_CLICK:
switch (ev.type)
{
case "mousemotion":
// If the mouse moved far enough from the original click location,
// then switch to drag-orientation mode
var dragDeltaX = ev.x - dragStart[0];
var dragDeltaY = ev.y - dragStart[1];
var maxDragDelta = 16;
if (Math.abs(dragDeltaX) >= maxDragDelta || Math.abs(dragDeltaY) >= maxDragDelta)
{
inputState = INPUT_BUILDING_DRAG;
return false;
}
break;
case "mousebuttonup":
if (ev.button == SDL_BUTTON_LEFT)
{
// If shift is down, let the player continue placing another of the same building
var queued = Engine.HotkeyIsPressed("session.queue");
if (tryPlaceBuilding(queued))
{
if (queued)
inputState = INPUT_BUILDING_PLACEMENT;
else
inputState = INPUT_NORMAL;
}
else
{
inputState = INPUT_BUILDING_PLACEMENT;
}
return true;
}
break;
case "mousebuttondown":
if (ev.button == SDL_BUTTON_RIGHT)
{
// Cancel building
placementSupport.Reset();
inputState = INPUT_NORMAL;
return true;
}
break;
}
break;
case INPUT_BUILDING_WALL_CLICK:
// User is mid-click in choosing a starting point for building a wall. The build process can still be cancelled at this point
// by right-clicking; releasing the left mouse button will 'register' the starting point and commence endpoint choosing mode.
switch (ev.type)
{
case "mousebuttonup":
if (ev.button === SDL_BUTTON_LEFT)
{
inputState = INPUT_BUILDING_WALL_PATHING;
return true;
}
break;
case "mousebuttondown":
if (ev.button == SDL_BUTTON_RIGHT)
{
// Cancel building
placementSupport.Reset();
updateBuildingPlacementPreview();
inputState = INPUT_NORMAL;
return true;
}
break;
}
break;
case INPUT_BUILDING_WALL_PATHING:
// User has chosen a starting point for constructing the wall, and is now looking to set the endpoint.
// Right-clicking cancels wall building mode, left-clicking sets the endpoint and builds the wall and returns to
// normal input mode. Optionally, shift + left-clicking does not return to normal input, and instead allows the
// user to continue building walls.
switch (ev.type)
{
case "mousemotion":
placementSupport.wallEndPosition = Engine.GetTerrainAtScreenPoint(ev.x, ev.y);
// Update the building placement preview, and by extension, the list of snapping candidate entities for both (!)
// the ending point and the starting point to snap to.
//
// TODO: Note that here, we need to fetch all similar entities, including any offscreen ones, to support the case
// where the snap entity for the starting point has moved offscreen, or has been deleted/destroyed, or was a
// foundation and has been replaced with a completed entity since the user first chose it. Fetching all towers on
// the entire map instead of only the current screen might get expensive fast since walls all have a ton of towers
// in them. Might be useful to query only for entities within a certain range around the starting point and ending
// points.
placementSupport.wallSnapEntitiesIncludeOffscreen = true;
var result = updateBuildingPlacementPreview(); // includes an update of the snap entity candidates
if (result && result.cost)
{
placementSupport.tooltipMessage = getEntityCostTooltip(result);
var neededResources = Engine.GuiInterfaceCall("GetNeededResources", { "cost": result.cost });
if (neededResources)
placementSupport.tooltipMessage += getNeededResourcesTooltip(neededResources);
}
break;
case "mousebuttondown":
if (ev.button == SDL_BUTTON_LEFT)
{
var queued = Engine.HotkeyIsPressed("session.queue");
if (tryPlaceWall(queued))
{
if (queued)
{
// continue building, just set a new starting position where we left off
placementSupport.position = placementSupport.wallEndPosition;
placementSupport.wallEndPosition = undefined;
inputState = INPUT_BUILDING_WALL_CLICK;
}
else
{
placementSupport.Reset();
inputState = INPUT_NORMAL;
}
}
else
{
placementSupport.tooltipMessage = translate("Cannot build wall here!");
}
updateBuildingPlacementPreview();
return true;
}
else if (ev.button == SDL_BUTTON_RIGHT)
{
// reset to normal input mode
placementSupport.Reset();
updateBuildingPlacementPreview();
inputState = INPUT_NORMAL;
return true;
}
break;
}
break;
case INPUT_BUILDING_DRAG:
switch (ev.type)
{
case "mousemotion":
var dragDeltaX = ev.x - dragStart[0];
var dragDeltaY = ev.y - dragStart[1];
var maxDragDelta = 16;
if (Math.abs(dragDeltaX) >= maxDragDelta || Math.abs(dragDeltaY) >= maxDragDelta)
{
// Rotate in the direction of the mouse
var target = Engine.GetTerrainAtScreenPoint(ev.x, ev.y);
placementSupport.angle = Math.atan2(target.x - placementSupport.position.x, target.z - placementSupport.position.z);
}
else
{
// If the mouse is near the center, snap back to the default orientation
placementSupport.SetDefaultAngle();
}
var snapData = Engine.GuiInterfaceCall("GetFoundationSnapData", {
"template": placementSupport.template,
"x": placementSupport.position.x,
"z": placementSupport.position.z
});
if (snapData)
{
placementSupport.angle = snapData.angle;
placementSupport.position.x = snapData.x;
placementSupport.position.z = snapData.z;
}
updateBuildingPlacementPreview();
break;
case "mousebuttonup":
if (ev.button == SDL_BUTTON_LEFT)
{
// If shift is down, let the player continue placing another of the same building
var queued = Engine.HotkeyIsPressed("session.queue");
if (tryPlaceBuilding(queued))
{
if (queued)
inputState = INPUT_BUILDING_PLACEMENT;
else
inputState = INPUT_NORMAL;
}
else
{
inputState = INPUT_BUILDING_PLACEMENT;
}
return true;
}
break;
case "mousebuttondown":
if (ev.button == SDL_BUTTON_RIGHT)
{
// Cancel building
placementSupport.Reset();
inputState = INPUT_NORMAL;
return true;
}
break;
}
break;
case INPUT_MASSTRIBUTING:
if (ev.type == "hotkeyup" && ev.hotkey == "session.masstribute")
{
g_FlushTributing();
inputState = INPUT_NORMAL;
}
break;
case INPUT_BATCHTRAINING:
if (ev.type == "hotkeyup" && ev.hotkey == "session.batchtrain")
{
flushTrainingBatch();
inputState = INPUT_NORMAL;
}
break;
}
return false;
}
function handleInputAfterGui(ev)
{
if (ev.hotkey === undefined)
ev.hotkey = null;
// Handle the time-warp testing features, restricted to single-player
if (!g_IsNetworked && Engine.GetGUIObjectByName("devTimeWarp").checked)
{
if (ev.type == "hotkeydown" && ev.hotkey == "session.timewarp.fastforward")
Engine.SetSimRate(20.0);
else if (ev.type == "hotkeyup" && ev.hotkey == "session.timewarp.fastforward")
Engine.SetSimRate(1.0);
else if (ev.type == "hotkeyup" && ev.hotkey == "session.timewarp.rewind")
Engine.RewindTimeWarp();
}
if (ev.hotkey == "session.showstatusbars")
{
g_ShowAllStatusBars = (ev.type == "hotkeydown");
recalculateStatusBarDisplay();
}
else if (ev.hotkey == "session.highlightguarding")
{
g_ShowGuarding = (ev.type == "hotkeydown");
updateAdditionalHighlight();
}
else if (ev.hotkey == "session.highlightguarded")
{
g_ShowGuarded = (ev.type == "hotkeydown");
updateAdditionalHighlight();
}
// State-machine processing:
switch (inputState)
{
case INPUT_NORMAL:
switch (ev.type)
{
case "mousemotion":
// Highlight the first hovered entity (if any)
var ent = Engine.PickEntityAtPoint(ev.x, ev.y);
if (ent != INVALID_ENTITY)
g_Selection.setHighlightList([ent]);
else
g_Selection.setHighlightList([]);
return false;
case "mousebuttondown":
if (ev.button == SDL_BUTTON_LEFT)
{
dragStart = [ ev.x, ev.y ];
inputState = INPUT_SELECTING;
return true;
}
else if (ev.button == SDL_BUTTON_RIGHT)
{
var action = determineAction(ev.x, ev.y);
if (!action)
break;
return doAction(action, ev);
}
break;
case "hotkeydown":
if (ev.hotkey.indexOf("selection.group.") == 0)
{
var now = new Date();
if ((now.getTime() - doublePressTimer < doublePressTime) && (ev.hotkey == prevHotkey))
{
if (ev.hotkey.indexOf("selection.group.select.") == 0)
{
var sptr = ev.hotkey.split(".");
performGroup("snap", sptr[3]);
}
}
else
{
var sptr = ev.hotkey.split(".");
performGroup(sptr[2], sptr[3]);
doublePressTimer = now.getTime();
prevHotkey = ev.hotkey;
}
}
break;
}
break;
case INPUT_PRESELECTEDACTION:
switch (ev.type)
{
case "mousemotion":
// Highlight the first hovered entity (if any)
var ent = Engine.PickEntityAtPoint(ev.x, ev.y);
if (ent != INVALID_ENTITY)
g_Selection.setHighlightList([ent]);
else
g_Selection.setHighlightList([]);
return false;
case "mousebuttondown":
if (ev.button == SDL_BUTTON_LEFT && preSelectedAction != ACTION_NONE)
{
var action = determineAction(ev.x, ev.y);
if (!action)
break;
preSelectedAction = ACTION_NONE;
inputState = INPUT_NORMAL;
return doAction(action, ev);
}
else if (ev.button == SDL_BUTTON_RIGHT && preSelectedAction != ACTION_NONE)
{
preSelectedAction = ACTION_NONE;
inputState = INPUT_NORMAL;
break;
}
// else
default:
// Slight hack: If selection is empty, reset the input state
if (g_Selection.toList().length == 0)
{
preSelectedAction = ACTION_NONE;
inputState = INPUT_NORMAL;
break;
}
}
break;
case INPUT_SELECTING:
switch (ev.type)
{
case "mousemotion":
// If the mouse moved further than a limit, switch to bandbox mode
var dragDeltaX = ev.x - dragStart[0];
var dragDeltaY = ev.y - dragStart[1];
if (Math.abs(dragDeltaX) >= maxDragDelta || Math.abs(dragDeltaY) >= maxDragDelta)
{
inputState = INPUT_BANDBOXING;
return false;
}
var ent = Engine.PickEntityAtPoint(ev.x, ev.y);
if (ent != INVALID_ENTITY)
g_Selection.setHighlightList([ent]);
else
g_Selection.setHighlightList([]);
return false;
case "mousebuttonup":
if (ev.button == SDL_BUTTON_LEFT)
{
var ents = [];
var selectedEntity = Engine.PickEntityAtPoint(ev.x, ev.y);
if (selectedEntity == INVALID_ENTITY)
{
if (!Engine.HotkeyIsPressed("selection.add") && !Engine.HotkeyIsPressed("selection.remove"))
{
g_Selection.reset();
resetIdleUnit();
}
inputState = INPUT_NORMAL;
return true;
}
var now = new Date();
// If camera following and we select different unit, stop
if (Engine.GetFollowedEntity() != selectedEntity)
{
Engine.CameraFollow(0);
}
if ((now.getTime() - doubleClickTimer < doubleClickTime) && (selectedEntity == prevClickedEntity))
{
// Double click or triple click has occurred
var showOffscreen = Engine.HotkeyIsPressed("selection.offscreen");