From fb81cc298299ed6f61ab210de59fb741abf1546d Mon Sep 17 00:00:00 2001
From: unknown <>
Date: Sun, 10 Mar 2024 17:35:18 -0400
Subject: [PATCH] properly swapping direct arrays

---
 src/main/c/fluidsim.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/main/c/fluidsim.c b/src/main/c/fluidsim.c
index c070db3..c29d9ff 100644
--- a/src/main/c/fluidsim.c
+++ b/src/main/c/fluidsim.c
@@ -733,6 +733,13 @@ JNIEXPORT void JNICALL Java_electrosphere_FluidSim_simulate(
             tmpObj = currentChunk->jd;
             currentChunk->jd = currentChunk->jd0;
             currentChunk->jd0 = tmpObj;
+
+            float * tmpArr;
+            for(int j = 0; j < 27; j++){
+                tmpArr = currentChunk->d[j];
+                currentChunk->d[j] = currentChunk->d0[j];
+                currentChunk->d0[j] = tmpArr;
+            }
         }
         for(int i = 0; i < numChunks; i++){
             Chunk * currentChunk = chunks[i];
@@ -805,6 +812,13 @@ JNIEXPORT void JNICALL Java_electrosphere_FluidSim_simulate(
             tmpObj = currentChunk->jd;
             currentChunk->jd = currentChunk->jd0;
             currentChunk->jd0 = tmpObj;
+
+            float * tmpArr;
+            for(int j = 0; j < 27; j++){
+                tmpArr = currentChunk->d[j];
+                currentChunk->d[j] = currentChunk->d0[j];
+                currentChunk->d0[j] = tmpArr;
+            }
         }
         for(int i = 0; i < numChunks; i++){
             Chunk * currentChunk = chunks[i];