Fix Units demo map following the addition of the special filter templates in D215 / d093f714d7.

Expose the FindAllPlaceableTemplates function to the simulation to
remove the hardcoded directory checks as suggested by fatherbushido.
Add the new special template directory from D176 / cd6c31e76e.
Move the code from XML to JS.

Differential Revision: https://code.wildfiregames.com/D277
Reviewed By: Vladislav
This was SVN commit r19399.

binaries/data/mods/public/maps/scenarios/Units_demo.js

@@ -0,0 +1,84 @@
+/**
+ * Whether to also place all actors.
+ */
+let actors = false;
+
+/**
+ * Coordinates of the first entity.
+ */
+let startX = 20;
+let startZ = 20;
+
+/**
+ * Horizontal coordinate of the last entity in the current row.
+ */
+let stopX = 1580;
+
+/**
+ * Coordinates of the current entity.
+ */
+let x = startX;
+let z = startZ;
+
+/**
+ * Recall the greatest length in the current row to prevent overlapping.
+ */
+let maxh = 0;
+
+/**
+ * Space between entities.
+ */
+let gap = 14;
+
+let cmpTemplateManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_TemplateManager);
+for (let template of cmpTemplateManager.FindAllPlaceableTemplates(actors))
+{
+	print(template + "...\n");
+
+	let ent = Engine.AddEntity(template);
+	if (!ent)
+	{
+		error("Failed to load " + template + "\n");
+		continue;
+	}
+
+	let cmpFootprint = Engine.QueryInterface(ent, IID_Footprint);
+	if (!cmpFootprint)
+	{
+		print(template + " has no footprint\n");
+		continue;
+	}
+
+	let shape = cmpFootprint.GetShape();
+	let w = shape.width;
+	let h = shape.depth;
+
+	if (shape.type == 'circle')
+		w = h = shape.radius * 2;
+
+	if (x + w >= stopX)
+	{
+		// Start a new row
+		x = startX;
+		z += maxh + gap;
+		maxh = 0;
+	}
+
+	let cmpPosition = Engine.QueryInterface(ent, IID_Position);
+	if (!cmpPosition)
+	{
+		warn(template + " has no position\n");
+		Engine.DestroyEntity(ent);
+		continue;
+	}
+
+	cmpPosition.MoveTo(x + w / 2, z);
+	cmpPosition.SetYRotation(Math.PI * 3 / 4);
+
+	let cmpOwnership = Engine.QueryInterface(ent, IID_Ownership);
+	if (cmpOwnership)
+		cmpOwnership.SetOwner(1);
+
+	x += w + gap;
+	maxh = Math.max(maxh, h);
+}

binaries/data/mods/public/simulation/data/placeablesFilter.json

@@ -5,6 +5,7 @@
      {"directory": "other", "file": "*.xml"},
      {"directory": "structures", "file": "*.xml"},
      {"directory": "units", "file": "*.xml"},
+     {"directory": "trigger", "file": "*.xml"},
      {"directory": "skirmish/structures", "file": "*.xml"},
      {"directory": "skirmish/units", "file": "*.xml"},
      {"directory": "special", "file": "trigger_point*.xml"},

source/simulation2/components/ICmpTemplateManager.cpp

@@ -27,5 +27,6 @@ DEFINE_INTERFACE_METHOD_1("GetTemplateWithoutValidation", const CParamNode*, ICm
 DEFINE_INTERFACE_METHOD_CONST_1("TemplateExists", bool, ICmpTemplateManager, TemplateExists, std::string)
 DEFINE_INTERFACE_METHOD_CONST_1("GetCurrentTemplateName", std::string, ICmpTemplateManager, GetCurrentTemplateName, entity_id_t)
 DEFINE_INTERFACE_METHOD_CONST_1("FindAllTemplates", std::vector<std::string>, ICmpTemplateManager, FindAllTemplates, bool)
+DEFINE_INTERFACE_METHOD_CONST_1("FindAllPlaceableTemplates", std::vector<std::string>, ICmpTemplateManager, FindAllPlaceableTemplates, bool)
 DEFINE_INTERFACE_METHOD_CONST_1("GetEntitiesUsingTemplate", std::vector<entity_id_t>, ICmpTemplateManager, GetEntitiesUsingTemplate, std::string)
 END_INTERFACE_WRAPPER(TemplateManager)