entity_area now accepts tuple arguments, and ai_tracker shows correctly player item pickup area

docs/scarpet/Full.md

@@ -2555,10 +2555,14 @@ living entities based on their spawn group.
 All categories can be preceded with `'!'` which will fetch all entities that are valid (health > 0) but not 
 belonging to that group. Calls to `entity_list` always fetch entities from the current world that the script executes. 
 
-### `entity_area(type, cx, cy, cz, dx, dy, dz)`
+### `entity_area(type, center, distance)`
 
-Returns entities of a specified type in an area centered on `cx, cy, cz` and at most `dx, dy, dz` blocks away from 
-the center point. Uses the same selectors as `entities_list`.
+ 
+Returns entities of a specified type in an area centered on `center` and at most `distance` blocks away from 
+the center point. Uses the same `type` selectors as `entities_list`.
+
+`center` and `distance` can either be a triple of coordinates or three consecutive arguments for `entity_area`. `center` can 
+also be represented as a block, in this case the search box will be centered on the middle of the block.
 
 entity_area is simpler than `entity_selector` and runs about 20% faster, but is limited to predefined selectors and 
 cuboid search area.

docs/scarpet/api/Entities.md

@@ -56,10 +56,14 @@ living entities based on their spawn group.
 All categories can be preceded with `'!'` which will fetch all entities that are valid (health > 0) but not 
 belonging to that group. Calls to `entity_list` always fetch entities from the current world that the script executes. 
 
-### `entity_area(type, cx, cy, cz, dx, dy, dz)`
+### `entity_area(type, center, distance)`
 
-Returns entities of a specified type in an area centered on `cx, cy, cz` and at most `dx, dy, dz` blocks away from 
-the center point. Uses the same selectors as `entities_list`.
+ 
+Returns entities of a specified type in an area centered on `center` and at most `distance` blocks away from 
+the center point. Uses the same `type` selectors as `entities_list`.
+
+`center` and `distance` can either be a triple of coordinates or three consecutive arguments for `entity_area`. `center` can 
+also be represented as a block, in this case the search box will be centered on the middle of the block.
 
 entity_area is simpler than `entity_selector` and runs about 20% faster, but is limited to predefined selectors and 
 cuboid search area.

src/main/java/carpet/script/api/Entities.java

@@ -191,19 +191,20 @@ public class Entities {
             return (_c, _t ) -> retval;
         });
 
-        expression.addLazyFunction("entity_area", 7, (c, t, lv) ->
+        expression.addLazyFunction("entity_area", -1, (c, t, lv) ->
         {
-            Vec3d center = new Vec3d(
-                    NumericValue.asNumber(lv.get(1).evalValue(c)).getDouble(),
-                    NumericValue.asNumber(lv.get(2).evalValue(c)).getDouble(),
-                    NumericValue.asNumber(lv.get(3).evalValue(c)).getDouble()
-            );
-            Box area = new Box(center, center).expand(
-                    NumericValue.asNumber(lv.get(4).evalValue(c)).getDouble(),
-                    NumericValue.asNumber(lv.get(5).evalValue(c)).getDouble(),
-                    NumericValue.asNumber(lv.get(6).evalValue(c)).getDouble()
-            );
+            if (lv.size()<3) throw new InternalExpressionException("'entity_area' requires entity type, center and range arguments");
             String who = lv.get(0).evalValue(c).getString();
+            CarpetContext cc = (CarpetContext)c;
+            Vector3Argument centerLocator = Vector3Argument.findIn(cc, lv, 1);
+            Vec3d center = centerLocator.vec;
+            if (centerLocator.fromBlock) center.add(0.5, 0.5, 0.5);
+            Vector3Argument rangeLocator = Vector3Argument.findIn(cc, lv, centerLocator.offset);
+            if (rangeLocator.fromBlock)
+                throw new InternalExpressionException("Range of 'entity_area' cannot come from a block argument");
+            Vec3d range = rangeLocator.vec;
+            Box area = new Box(center, center).expand(range.x, range.y, range.z);
+
             Pair<EntityType<?>, Predicate<? super Entity>> pair = EntityValue.getPredicate(who);
             if (pair == null)
             {

src/main/resources/assets/carpet/scripts/ai_tracker.sc

@@ -161,21 +161,55 @@ global_functions = {
    'item_pickup' -> {
       '*' -> [
          _(arg) -> _(e) -> (
-            if (e~'type' == 'player', return([[],[],[]]));
             visuals = [];
             abnoxious_visuals = [];
-            half_width = e~'width'/2;
-            height = e~'height';
-            __create_box(abnoxious_visuals, e,
-                  [-1-half_width,0,-1-half_width],
-                  [1+half_width, height,1+half_width],
-                  0xffff0000, 'item range', false
+            e_half_width = e~'width'/2;
+            e_height = e~'height';
+            [box_from, box_to, color] = if (e~'type' == 'player',
+
+               if ((ride = e~'mount') != null,
+                  rpos = pos(ride)-pos(e);
+                  r_half_width = ride~'width'/2;
+                  r_height = ride~'height';
+                  [ [
+                    -1+min(-e_half_width, rpos:0-r_half_width),
+                    min(0, rpos:1),
+                    -1+min(-e_half_width, rpos:2-r_half_width)
+                  ], [
+                     1+max(e_half_width, rpos:0+r_half_width),
+                     max(e_height, rpos:1+r_height),
+                     1+max(e_half_width, rpos:2+r_half_width)
+                  ], 0xffaa0000
+                  ]
+               ,
+                  [
+                     [ -1-e_half_width, -0.5, -1-e_half_width ],
+                     [ 1+e_half_width, e_height+0.5, 1+e_half_width ],
+                     0xffaa0000
+                  ]
+               )
+            ,
+
+               [
+                  [ -1-e_half_width, 0, -1-e_half_width ],
+                  [ 1+e_half_width, e_height, 1+e_half_width ],
+                  0xffff0000
+               ]
             );
-            [x,y,z] = pos(e);
-            for (filter(entity_area('item', x, y+height/2, z, 1+half_width, height/2, 1+half_width), pos(_) != pos(e)),
+            box_ctr = (box_from+box_to)/2;
+            box_range = box_ctr-box_from;
+
+            __create_box(abnoxious_visuals, e,
+                  box_from,
+                  box_to,
+                  color, 'item range', false
+            );
+            for (filter(entity_area('item', pos(e)+box_ctr, box_range), pos(_) != pos(e)),
                visuals+=['line', global_duration, 'from', pos(e)+[0,1,0], 'to', pos(_)+[0,0,0], 'color', 0xffff00ff]
             );
-            [visuals, abnoxious_visuals, []];
+
+
+            [visuals, abnoxious_visuals, []]
          ),
       ,
          null