Fixed Y of Zoom being flipped on PC

I love maths :D

Author: BobbyShmurner

CHANGELOG.MD

@@ -1,3 +1,6 @@
+# 1.2.4
+Fixed bug where zoom would be inverted on PC
+
 # 1.2.3
 Added support for Prevter's [Smooth Scroll](https://geode-sdk.org/mods/prevter.smooth-scroll) mod
 Fixed a bug with on mobile where it wouldn't quite zoom in on where your fingers where

mod.json

@@ -7,7 +7,7 @@
 	},
 	"id": "bobby_shmurner.zoom",
 	"name": "Zoooom!",
-	"version": "1.2.3",
+	"version": "1.2.4",
 	"developer": "Bobby Shmurner",
 	"description": "Allows you to zoom while paused!",
 	"links": {

src/mobile.cpp

@@ -142,7 +142,7 @@ void AndroidZoomLayer::ccTouchMoved(CCTouch* pTouch, CCEvent* pEvent) {
 		CCPoint touchDisplacement = ccpSub(movingTouch->getLocation(), anchoredTouch->getLocation());
 		float scaleDelta = touchDisplacement.normalize().dot(delta) / 100.0f;
 
-		zoomPlayLayer(m_playLayer, scaleDelta, m_ZoomAnchor);
+		zoomPlayLayer(m_playLayer, scaleDelta, m_ZoomAnchor, false);
 		clampPlayLayerPos(m_playLayer);
 	}
 }

src/utils.cpp

@@ -1,7 +1,7 @@
 #include "utils.hpp"
 using namespace geode::prelude;
 
-void zoomPlayLayer(CCNode* playLayer, float delta, CCPoint screenAnchor) {
+void zoomPlayLayer(CCNode* playLayer, float delta, CCPoint screenAnchor, bool flipY) {
 	if (!playLayer) return;
 
 	CCSize contentSize = playLayer->getContentSize();
@@ -10,6 +10,8 @@ void zoomPlayLayer(CCNode* playLayer, float delta, CCPoint screenAnchor) {
 		screenAnchor.y - contentSize.height / 2
 	);
 
+	if (flipY) anchorPoint.y *= -1.0f;
+
 	float oldScale = playLayer->getScale();
 	float newScale;
 

src/utils.hpp

@@ -5,4 +5,4 @@ using namespace geode::prelude;
 
 CCSize getScreenSize();
 void clampPlayLayerPos(CCNode* playLayer);
-void zoomPlayLayer(CCNode* playLayer, float zoom, CCPoint screenAnchor);
+void zoomPlayLayer(CCNode* playLayer, float zoom, CCPoint screenAnchor, bool flipY);

src/windows.cpp

@@ -55,7 +55,7 @@ void WindowsZoomManager::zoom(float delta) {
 
 	CCPoint mouseScreenPos = getMousePosOnScreen();
 
-	zoomPlayLayer(playLayer, delta, mouseScreenPos);
+	zoomPlayLayer(playLayer, delta, mouseScreenPos, true);
 	onScreenModified();
 }