fix chunk reading

src/integration-test/kotlin/de/bixilon/minosoft/data/registries/versions/PixLyzerLoadingTest.kt

@@ -20,7 +20,7 @@ import de.bixilon.minosoft.test.ITUtil
 import org.testng.Assert
 import org.testng.annotations.Test
 
-@Test
+@Test(groups = ["pixlyzer"], dependsOnGroups = ["version"])
 class PixLyzerLoadingTest {
 
     private fun Version.test() {
@@ -36,67 +36,54 @@ class PixLyzerLoadingTest {
         ITUtil.loadPixlyzerData("1.14.4").test()
     }
 
-    @Test
     fun `1_15`() {
         ITUtil.loadPixlyzerData("1.15").test()
     }
 
-    @Test
     fun `1_15_1`() {
         ITUtil.loadPixlyzerData("1.15.1").test()
     }
 
-    @Test
     fun `1_15_2`() {
         ITUtil.loadPixlyzerData("1.15.2").test()
     }
 
-    @Test
     fun `1_16`() {
         ITUtil.loadPixlyzerData("1.16").test()
     }
 
-    @Test
     fun `1_16_1`() {
         ITUtil.loadPixlyzerData("1.16.1").test()
     }
 
-    @Test
     fun `1_16_2`() {
         ITUtil.loadPixlyzerData("1.16.2").test()
     }
 
-    @Test
     fun `1_16_3`() {
         ITUtil.loadPixlyzerData("1.16.3").test()
     }
 
-    @Test
     fun `1_16_5`() {
         ITUtil.loadPixlyzerData("1.16.5").test()
     }
 
-    @Test
     fun `1_17`() {
         ITUtil.loadPixlyzerData("1.17").test()
     }
 
-    @Test
     fun `1_17_1`() {
         ITUtil.loadPixlyzerData("1.17.1").test()
     }
 
-    @Test
     fun `1_18_1`() {
         ITUtil.loadPixlyzerData("1.18.1").test()
     }
 
-    @Test
     fun `1_18_2`() {
         ITUtil.loadPixlyzerData("1.18.2").test()
     }
 
-    @Test
     fun `1_19`() {
         ITUtil.loadPixlyzerData("1.19").test()
     }

src/main/java/de/bixilon/minosoft/util/chunk/ChunkUtil.kt

@@ -162,10 +162,11 @@ object ChunkUtil {
         var lightReceived = 0
         val biomes: Array<Array<Biome?>?> = arrayOfNulls(dimension.sections)
 
-        for ((sectionIndex, sectionHeight) in (dimension.minSection until (sectionBitMask?.length() ?: dimension.sections)).withIndex()) { // max sections per chunks in chunk column
+        for (sectionIndex in (0 until (sectionBitMask?.length() ?: dimension.sections))) { // max sections per chunks in chunk column
             if (sectionBitMask?.get(sectionIndex) == false) {
                 continue
             }
+            val sectionHeight = sectionIndex + dimension.minSection
             if (buffer.versionId >= V_18W43A) {
                 buffer.readShort() // non-air block count
             }