support sprite distances/touching

1 files changed, 8 insertions, 7 deletions

diff --git a/objects.js b/objects.js
index e13d32d..227c105 100644
--- a/objects.js
+++ b/objects.js
@@ -815,12 +815,6 @@ SpriteMorph.prototype.initBlocks = function () {
             category: 'sensing',
             spec: 'touching %clr ?'
         },
-        reportColorIsTouchingColor: {
-            only: SpriteMorph,
-            type: 'predicate',
-            category: 'sensing',
-            spec: 'color %clr is touching %clr ?'
-        },
         colorFiltered: {
             dev: true,
             type: 'reporter',
@@ -2030,7 +2024,6 @@ SpriteMorph.prototype.blockTemplates = function (category) {
 
         blocks.push(block('reportTouchingObject'));
         blocks.push(block('reportTouchingColor'));
-        blocks.push(block('reportColorIsTouchingColor'));
         blocks.push('-');
         blocks.push(block('doAsk'));
         blocks.push(watcherToggle('getLastAnswer'));
@@ -2899,6 +2892,14 @@ SpriteMorph.prototype.removeClone = function () {
 
 // SpriteMorph primitives
 
+SpriteMorph.prototype.isTouching = function (other) {
+    var me = L.latLng(this.yPosition(), this.xPosition());
+        target = L.latLng(other.yPosition(), other.xPosition());
+
+    // could also use leaflet's equals
+    return me.distanceTo(target) < 1; // 1 meter magic number
+};
+
 // SpriteMorph hiding and showing:
 
 /*