handle modules larger than 1x1, widen door size to allow walking around it

Assets/Engine/Assets/Prefabs/Generic Door Entrance.prefab

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Assets/Engine/Assets/Prefabs/Generic Door Exit.prefab

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+    - targetCorrespondingSourceObject: {fileID: 7860513085978939562, guid: ad2655de8289afa40aa520f9fc474681,
+        type: 3}
+      insertIndex: -1
+      addedObject: {fileID: 4122861465983034065}
+    - targetCorrespondingSourceObject: {fileID: 7860513085978939562, guid: ad2655de8289afa40aa520f9fc474681,
+        type: 3}
+      insertIndex: -1
+      addedObject: {fileID: 8723730948981272237}
+    - targetCorrespondingSourceObject: {fileID: 7860513085978939562, guid: ad2655de8289afa40aa520f9fc474681,
+        type: 3}
+      insertIndex: -1
+      addedObject: {fileID: 7573266324358532870}
   m_SourcePrefab: {fileID: 100100000, guid: ad2655de8289afa40aa520f9fc474681, type: 3}
 --- !u!1 &913127997918145164 stripped
 GameObject:
@@ -98,3 +514,10 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: 696181e3eda449d49d4c1c88b07d7b05, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
+  size: {x: 2, y: 2}
+--- !u!4 &6060240960858060261 stripped
+Transform:
+  m_CorrespondingSourceObject: {fileID: 7860513085978939562, guid: ad2655de8289afa40aa520f9fc474681,
+    type: 3}
+  m_PrefabInstance: {fileID: 4110777154808243535}
+  m_PrefabAsset: {fileID: 0}

Assets/Engine/Runtime/Placement.cs

@@ -1,47 +1,122 @@
-using System.Collections.Generic;
+using System;
-using System.Linq;
+using System.Collections.Generic;
 using UnityEngine;
+using Range = EscapeRoomEngine.Engine.Runtime.Utilities.Range;
 
 namespace EscapeRoomEngine.Engine.Runtime
 {
     public struct Placement
     {
+        /// <summary>
+        /// The placement position is always considered to be at <c>(0.5, 0.5)</c> relative to the placement.
+        ///
+        /// <example>In a placement of size <c>(1, 1)</c>, the position is at the center of the placement. In a larger placement, the position is in the center of the bottom left square meter.</example>
+        /// </summary>
         public Vector3Int position;
         public Vector2Int size;
         public Orientation orientation;
         
-        /// <summary>
+        public Vector3Int BottomLeft {
-        /// Create a set with every possible combination of position and orientation given the dimensions.
-        ///
-        /// <remarks>
-        ///     The size of all placements will be (1, 1).
-        /// </remarks>
-        /// </summary>
-        public List<Placement> EveryPlacement
-        {
             get
             {
-                var placements = new List<Placement>();
+                var sizeMinusOne = size - Vector2Int.one;
-
+                return orientation switch
-                for (var zIter = 0; zIter < size.y; zIter++)
                 {
-                    for (var xIter = 0; xIter < size.x; xIter++)
+                    Orientation.North => position,
-                    {
+                    Orientation.East => position - new Vector3Int(0, 0, sizeMinusOne.x),
-                        placements.AddRange(OrientationExtensions.EveryOrientation().Select(o => new Placement
+                    Orientation.South => position - new Vector3Int(sizeMinusOne.x, 0, sizeMinusOne.y),
-                        {
+                    Orientation.West => position - new Vector3Int(sizeMinusOne.y, 0, 0),
-                            position = new Vector3Int(xIter, 0, zIter),
+                    _ => throw new ArgumentOutOfRangeException()
-                            size = Vector2Int.one,
+                };
-                            orientation = o
-                        }));
-                    }
-                }
-
-                return placements;
             }
         }
         
-        public string PositionAndOrientation() => $"{{({position.x}, {position.z}), {orientation}}}";
+        /// <summary>
+        /// Create a set with every possible combination of position and orientation of placements that fit in a given space.
+        /// The size of the placements are given by this placement.
+        /// </summary>
+        /// <param name="space">The generated placements will fit inside the placement of the given space.</param>
+        public List<Placement> EveryPlacementInSpace(Space space)
+        {
+            var placements = new List<Placement>();
+            var sizeMinusOne = size - Vector2Int.one;
+            var spaceSize = space.rrPlacement.size;
 
+            foreach (var o in OrientationExtensions.EveryOrientation())
+            {
+                Range x;
+                Range z;
+                
+                switch (o)
+                {
+                    case Orientation.North:
+                        x = new Range(0, spaceSize.x - sizeMinusOne.x);
+                        z = new Range(0, spaceSize.y - sizeMinusOne.y);
+                        break;
+                    case Orientation.East:
+                        x = new Range(0, spaceSize.x - sizeMinusOne.y);
+                        z = new Range(sizeMinusOne.x, spaceSize.y);
+                        break;
+                    case Orientation.South:
+                        x = new Range(sizeMinusOne.x, spaceSize.x);
+                        z = new Range(sizeMinusOne.y, spaceSize.y);
+                        break;
+                    case Orientation.West:
+                        x = new Range(sizeMinusOne.y, spaceSize.x);
+                        z = new Range(0, spaceSize.y - sizeMinusOne.x);
+                        break;
+                    default:
+                        throw new ArgumentOutOfRangeException();
+                }
+                
+                placements.AddRange(ConstrainedPlacements(o, size, x, z));
+            }
+
+            return placements;
+        }
+
+        private static IEnumerable<Placement> ConstrainedPlacements(
+            Orientation orientation,
+            Vector2Int size,
+            Range xRange, Range zRange)
+        {
+            var placements = new List<Placement>(xRange.Length * zRange.Length);
+            
+            for (var z = zRange.min; z < zRange.max; z++)
+            {
+                for (var x = xRange.min; x < xRange.max; x++)
+                {
+                    placements.Add(new Placement
+                    {
+                        position = new Vector3Int(x, 0, z),
+                        size = size,
+                        orientation = orientation
+                    });
+                }
+            }
+
+            return placements;
+        }
+
+        /// <summary>
+        /// Performs the specified action for each position inside the size of this placement.
+        ///
+        /// <example>For the placement {(2, 0, 3), (1, 2), East} the action would be called twice with the parameters (2, 0, 3) and (3, 0, 3).</example>
+        /// </summary>
+        public void ForEachPosition(Action<Vector3Int> action)
+        {
+            var bottomLeft = BottomLeft;
+
+            for (var z = 0; z < (orientation is Orientation.North or Orientation.South ? size.y : size.x); z++)
+            {
+                for (var x = 0; x < (orientation is Orientation.North or Orientation.South ? size.x : size.y); x++)
+                {
+                    action(bottomLeft + new Vector3Int(x, 0, z));
+                }
+            }
+        }
+
+        public string ToStringShort() => $"{{{position}, {orientation}}}";
         public override string ToString() => $"{{{position}, {size}, {orientation}}}";
     }
 }

Assets/Engine/Runtime/Requirements/FaceSpaceCenter.cs

@@ -9,13 +9,16 @@ namespace EscapeRoomEngine.Engine.Runtime.Requirements
     {
         protected override List<Placement> FilterCandidates(List<Placement> candidates, Module module, Space space)
         {
-            float width = space.rrPlacement.size.x - 1;
+            float width = space.rrPlacement.size.x;
-            float length = space.rrPlacement.size.y - 1;
+            float length = space.rrPlacement.size.y;
 
             candidates.RemoveAll(candidate =>
             {
-                var xRel = candidate.position.x / width;
+                var bottomLeft = candidate.BottomLeft;
-                var zRel = candidate.position.z / length;
+                var center = new Vector2(bottomLeft.x, bottomLeft.z) +
+                             new Vector2(candidate.size.x / 2f, candidate.size.y / 2f);
+                var xRel = center.x / width;
+                var zRel = center.y / length;
                 
                 return candidate.orientation !=
                        (zRel > xRel

Assets/Engine/Runtime/Requirements/NoOverlap.cs

@@ -9,10 +9,22 @@ namespace EscapeRoomEngine.Engine.Runtime.Requirements
     {
         protected override List<Placement> FilterCandidates(List<Placement> candidates, Module module, Space space)
         {
-            space.AllModules.ForEach(other =>
+            space.AllModules.ForEach(other => // for all other module ...
-            {
+                other.srPlacement.ForEachPosition(otherPosition => // ... positions ...
-                candidates.RemoveAll(candidate => candidate.position.Equals(other.SrPosition));
+                    candidates.RemoveAll(candidate => // ... remove every candidate that ...
-            });
+                    {
+                        var remove = false;
+                        
+                        candidate.ForEachPosition(position => // ... anywhere inside its bounds ...
+                        {
+                            if (!remove)
+                            {
+                                remove = position.Equals(otherPosition); // ... overlaps with other modules' position
+                            }
+                        });
+                        
+                        return remove;
+                    })));
 
             return candidates;
         }

Assets/Engine/Runtime/Requirements/PlaceAlongSpaceEdges.cs

@@ -14,8 +14,17 @@ namespace EscapeRoomEngine.Engine.Runtime.Requirements
             
             candidates.RemoveAll(candidate =>
             {
-                var position = candidate.position;
+                var keep = false;
-                return position.x > 0 && position.x < right && position.z > 0 && position.z < top;
+                        
+                candidate.ForEachPosition(position =>
+                {
+                    if (!keep)
+                    {
+                        keep = position.x == 0 || position.x == right || position.z == 0 || position.z == top;
+                    }
+                });
+                        
+                return !keep;
             });
 
             return candidates;

Assets/Engine/Runtime/Requirements/PlacementRequirement.cs

@@ -18,11 +18,11 @@ namespace EscapeRoomEngine.Engine.Runtime.Requirements
             }
             
             var placementCandidates = Candidates(
-                space.rrPlacement.EveryPlacement,
+                module.srPlacement.EveryPlacementInSpace(space),
                 module.description.placementRequirements,
                 module, space);
             
-            Logger.Log($"placement candidates: {string.Join(", ", placementCandidates.ToList().ConvertAll(c => c.PositionAndOrientation()))}", LogType.RequirementResolution);
+            Logger.Log($"placement candidates: {string.Join(", ", placementCandidates.ToList().ConvertAll(c => c.ToStringShort()))}", LogType.RequirementResolution);
             
             if (placementCandidates.Count > 0)
             {

Assets/Engine/Runtime/Utilities/Range.cs

@@ -0,0 +1,17 @@
+namespace EscapeRoomEngine.Engine.Runtime.Utilities
+{
+    public struct Range
+    {
+        public int min, max;
+
+        public int Length => max - min;
+
+        public Range(int min, int max)
+        {
+            this.min = min;
+            this.max = max;
+        }
+
+        public override string ToString() => $"{{{min}, ..., {max}}}";
+    }
+}

Assets/Engine/Runtime/Utilities/Range.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: c02bc5b9e6d74d6eaab716d63b53a48f
+timeCreated: 1669288906

Assets/Escape Room Engine/Test Assets/Test Puzzle.asset

@@ -17,6 +17,6 @@ MonoBehaviour:
     type: 3}
   preconditionRequirements: []
   placementRequirements:
-  - {fileID: 11400000, guid: 43eb2a566a244964aa3a3319eaafe1a8, type: 2}
-  - {fileID: 11400000, guid: 1f1825b71bae09c438a1cb52603347d6, type: 2}
   - {fileID: 11400000, guid: ed4830127e9381245a6af07e42c52422, type: 2}
+  - {fileID: 11400000, guid: 1f1825b71bae09c438a1cb52603347d6, type: 2}
+  - {fileID: 11400000, guid: 43eb2a566a244964aa3a3319eaafe1a8, type: 2}