From c08fe7ce77265f2440375203aff42da66a932b7e Mon Sep 17 00:00:00 2001
From: Jerboa-app <dev@jerboa.app>
Date: Mon, 5 Aug 2024 07:41:12 +0100
Subject: [PATCH] Working multi-touch

---
 .../app/jerboa/spp/ui/view/SPPRenderer.kt     |  2 +-
 .../java/app/jerboa/spp/ui/view/SPPView.kt    | 22 ++++++++++++-------
 2 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/app/src/main/java/app/jerboa/spp/ui/view/SPPRenderer.kt b/app/src/main/java/app/jerboa/spp/ui/view/SPPRenderer.kt
index 791da3b..9c34d66 100644
--- a/app/src/main/java/app/jerboa/spp/ui/view/SPPRenderer.kt
+++ b/app/src/main/java/app/jerboa/spp/ui/view/SPPRenderer.kt
@@ -535,7 +535,7 @@ class SPPRenderer(
     }
 
     // propagate a tap event
-    fun tap(x: Float,y: Float, type: TOY = TOY.ATTRACTOR){
+    private fun tap(x: Float,y: Float, type: TOY = TOY.ATTRACTOR){
         if (DEMO_REAL){return}
         runBlocking {
             withContext(Dispatchers.Default) {
diff --git a/app/src/main/java/app/jerboa/spp/ui/view/SPPView.kt b/app/src/main/java/app/jerboa/spp/ui/view/SPPView.kt
index 7b3b9b0..483dd3e 100644
--- a/app/src/main/java/app/jerboa/spp/ui/view/SPPView.kt
+++ b/app/src/main/java/app/jerboa/spp/ui/view/SPPView.kt
@@ -85,7 +85,6 @@ class SPPView (
     }
 
     override fun onTouchEvent(event: MotionEvent): Boolean {
-        Log.d("event", "${event.action}")
         when (event.actionMasked) {
             MotionEvent.ACTION_DOWN -> {
                 event.actionIndex.also { pointer ->
@@ -106,23 +105,30 @@ class SPPView (
                         event.getY(pointer),
                         DRAG.START,
                         placingToy,
-                        event.actionIndex.toUInt()
+                        event.getPointerId(event.actionIndex).toUInt()
                     )
                 }
             }
             MotionEvent.ACTION_MOVE -> {
-                val pointer = event.findPointerIndex(event.actionIndex)
-                renderer.handleTouchEvent(event.getX(pointer), event.getY(pointer), DRAG.CONTINUE, placingToy, event.actionIndex.toUInt())
+                for (i in 0 until event.pointerCount) {
+                    renderer.handleTouchEvent(
+                        event.getX(i),
+                        event.getY(i),
+                        DRAG.CONTINUE,
+                        placingToy,
+                        event.getPointerId(i).toUInt()
+                    )
+                }
             }
             MotionEvent.ACTION_UP -> {
-                renderer.handleTouchEvent(event.getX(0),event.getY(0),DRAG.STOP, placingToy, event.actionIndex.toUInt())
+                renderer.handleTouchEvent(event.getX(0),event.getY(0),DRAG.STOP, placingToy, event.getPointerId(event.actionIndex).toUInt())
             }
             MotionEvent.ACTION_POINTER_UP -> {
                 event.actionIndex.also { pointer ->
                     event.getPointerId(pointer)
-                        .run {
-                            renderer.handleTouchEvent(event.getX(pointer),event.getY(pointer),DRAG.STOP, placingToy, event.actionIndex.toUInt())
-                        }
+                    .run {
+                        renderer.handleTouchEvent(event.getX(pointer),event.getY(pointer),DRAG.STOP, placingToy, event.getPointerId(event.actionIndex).toUInt())
+                    }
                 }
             }
         }