From 6f8bd55fc30ee4c4dcddce23c8c1f1bdc9f7a786 Mon Sep 17 00:00:00 2001
From: Leon van Kammen <leonvankammen@gmail.com>
Date: Thu, 18 Jun 2026 17:39:25 +0200
Subject: [PATCH] added tween extension to visualize clicks

---
 xurfer/ext/tween/main.lua           | 48 +++++++++++++++++++----------
 xurfer/ext/xrfragments/lovr-xrf.lua |  2 +-
 xurfer/ext/xrfragments/main.lua     |  8 ++---
 3 files changed, 36 insertions(+), 22 deletions(-)

diff --git a/xurfer/ext/tween/main.lua b/xurfer/ext/tween/main.lua
index a638404..decafdb 100644
--- a/xurfer/ext/tween/main.lua
+++ b/xurfer/ext/tween/main.lua
@@ -1,33 +1,47 @@
 local api = ...
+local tween = require "ext/tween/tween" -- https://github.com/kikito/tween.lua
 
 return {
-  enabled = false,
+  enabled = (lovr ~= nil),
 
   init = function()
     local tweenUpdater = api.ecs.processingSystem({
       updatethread = true,
-      filter = api.ecs.requireAll('tween'),
+      filter = function(obj) return true end, --obj.tween ~= nil end,
       nocache = true,
       process = function( self, obj, dt)
-        print("JAAA")
-        foreach( obj.tween, function(k,t)
-          print("TWEENING!")
-          if t:update(dt) == true then 
-            obj.tween[k] = nil -- delete tween
-            if count(obj.tween) == 0 then 
-              obj.tween = nil 
-              print("deleted tweens")
+        if obj.tween ~= nil then
+          if obj.tween:update(dt) ~= true then 
+            if obj.tween.target.scale ~= nil then
+              obj.model:setNodeScale( 
+                obj.tween.subject.name,
+                obj.tween.subject.scale[1],
+                obj.tween.subject.scale[2],
+                obj.tween.subject.scale[3]
+              ) 
             end
+          else
+            api.ecs.remove( api.world, obj )
           end
-        end)
+        end
       end
     })
     api.ecs.addSystem( api.world, tweenUpdater )
-  end
+  end,
 
-            ---- visualize click
-            --onClick
-            --obj.scale = 0.66 
-            --obj.tween          = obj.tween or {}
-            --obj.tween['scale'] = tween.new(0.5, obj, {scale = 1})
+  onClick = function(obj,collider)
+    -- visualize click
+    if obj.model ~= nil and obj.node ~= nil and obj.node.scale ~= nil then 
+      local x = obj.node.scale[1] 
+      local y = obj.node.scale[2] 
+      local z = obj.node.scale[3] 
+      obj.node.scale[1] = x * 0.88 
+      obj.node.scale[2] = y * 0.88 
+      obj.node.scale[3] = z * 0.88 
+      api.ecs.add( api.world, {
+        model = obj.model,
+        tween = tween.new(0.13, obj.node, {scale = {x, y, z} })
+      })
+    end
+  end
 }
diff --git a/xurfer/ext/xrfragments/lovr-xrf.lua b/xurfer/ext/xrfragments/lovr-xrf.lua
index 2edb459..3fae145 100644
--- a/xurfer/ext/xrfragments/lovr-xrf.lua
+++ b/xurfer/ext/xrfragments/lovr-xrf.lua
@@ -107,7 +107,7 @@ xrf.makeClickable = function( physicsWorld, cb)
       scale[3] * (d + 0.01)  -- planes e.g.
     )
     print("making node " .. node['name'] .. " clickable: " .. node.extras.href )
-    collider:setUserData( {name = node['name'], node = node, onclick = cb })
+    collider:setUserData( {name = node['name'], node = node, model = model, mesh = mesh, onclick = cb })
   end 
 end
 
diff --git a/xurfer/ext/xrfragments/main.lua b/xurfer/ext/xrfragments/main.lua
index 3fc72a0..e8b6401 100644
--- a/xurfer/ext/xrfragments/main.lua
+++ b/xurfer/ext/xrfragments/main.lua
@@ -1,6 +1,5 @@
 local api   = ...
 local url   = require('url')
-local tween = require('tween') 
 local ecs   = api.ecs
 local xrf   = require("ext/xrfragments/lovr-xrf")
 xrf.level2  = api.util.addModuleHooks( require("ext/xrfragments/level2") )
@@ -18,10 +17,11 @@ xrfimpl = {
           function(obj, collider)
             local href = obj.node.extras.href
             trace("\n[xrf] href was clicked: " .. href)
+            api.ext.exec("onClick", obj, collider)
 
-            local ok =  xrf.level2.load( href, obj, api.ext.URI.current, xrfimpl.onLoad)
-                        or
-                        xrf.level4.import( href, obj, api.ext.URI.current, xrfimpl.onImport)
+            --local ok =  xrf.level2.load( href, obj, api.ext.URI.current, xrfimpl.onLoad)
+            --            or
+            --            xrf.level4.import( href, obj, api.ext.URI.current, xrfimpl.onImport)
 
           end
         )