Some stability fixes to client tests

 - Place the player above the test region before running tests. This
   guarantees the client has the chunks loaded (and rendered) before we
   start running tests.

 - Reset the time after running the monitor/printout tests.

 - Fix rotation of turtle item models.

This still isn't perfect - the first test still fails with Iris and
Sodium - but is an improvement. Probably will still fail in CI though
:D:.

projects/common/src/testMod/kotlin/dan200/computercraft/gametest/Monitor_Test.kt

@@ -160,5 +160,7 @@ class Monitor_Test {
         }
 
         thenScreenshot()
+
+        thenExecute { helper.level.dayTime = Times.NOON }
     }
 }

projects/common/src/testMod/kotlin/dan200/computercraft/gametest/Printout_Test.kt

@@ -53,5 +53,7 @@ class Printout_Test {
         }
 
         thenScreenshot()
+
+        thenExecute { helper.level.dayTime = Times.NOON }
     }
 }

projects/common/src/testMod/kotlin/dan200/computercraft/gametest/core/ClientTestHooks.kt

@@ -15,6 +15,7 @@ import net.minecraft.client.gui.screens.Screen
 import net.minecraft.client.gui.screens.TitleScreen
 import net.minecraft.client.tutorial.TutorialSteps
 import net.minecraft.core.BlockPos
+import net.minecraft.core.registries.Registries
 import net.minecraft.gametest.framework.*
 import net.minecraft.server.MinecraftServer
 import net.minecraft.sounds.SoundSource
@@ -74,6 +75,7 @@ object ClientTestHooks {
         minecraft.options.cloudStatus().set(CloudStatus.OFF)
         minecraft.options.particles().set(ParticleStatus.MINIMAL)
         minecraft.options.tutorialStep = TutorialSteps.NONE
+        minecraft.options.pauseOnLostFocus = false
         minecraft.options.renderDistance().set(6)
         minecraft.options.gamma().set(1.0)
         minecraft.options.getSoundSourceOptionInstance(SoundSource.MUSIC).set(0.0)
@@ -93,7 +95,7 @@ object ClientTestHooks {
                 LEVEL_NAME,
                 LevelSettings("Test Level", GameType.CREATIVE, false, Difficulty.EASY, true, rules, WorldDataConfiguration.DEFAULT),
                 WorldOptions(WorldOptions.randomSeed(), false, false),
-            ) { WorldPresets.createNormalWorldDimensions(it) }
+            ) { it.registryOrThrow(Registries.WORLD_PRESET).getOrThrow(WorldPresets.FLAT).createWorldDimensions() }
         }
     }
 
@@ -108,7 +110,20 @@ object ClientTestHooks {
         val testTracker = when (val tracker = this.testTracker) {
             null -> {
                 if (server.overworld().players().isEmpty()) return
+
+                // Place our players above where the tests will run, looking down. This at least ensures they're in the
+                // right area when the tests start running.
+                for (player in server.overworld().players()) {
+                    player.abilities.flying = true
+                    player.onUpdateAbilities()
+                    player.connection.teleport(0.0, -30.0, 0.0, 0.0f, 90.0f)
+                    player.inventory.clearContent()
+                }
+
+                // Wait for all chunks to be rendered.
                 if (!Minecraft.getInstance().isRenderingStable()) return
+
+                // Then a little more just in case.
                 if (startupDelay >= 0) {
                     // TODO: Is there a better way? Maybe set a flag when the client starts rendering?
                     startupDelay--