1 files changed, 80 insertions, 0 deletions
diff --git a/src/main/java/gregtech/client/GTSoundLoop.java b/src/main/java/gregtech/client/GTSoundLoop.java
new file mode 100644
index 0000000000..23569a83e4
--- /dev/null
+++ b/src/main/java/gregtech/client/GTSoundLoop.java
@@ -0,0 +1,80 @@
+package gregtech.client;
+
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.audio.MovingSound;
+import net.minecraft.tileentity.TileEntity;
+import net.minecraft.util.ResourceLocation;
+import net.minecraft.world.World;
+
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+import gregtech.api.interfaces.tileentity.IGregTechTileEntity;
+import gregtech.api.multitileentity.machine.MultiTileBasicMachine;
+
+@SideOnly(Side.CLIENT)
+public class GTSoundLoop extends MovingSound {
+
+    private static final float VOLUME_RAMP = 0.0625f;
+    private final boolean whileActive;
+    private final boolean whileInactive;
+    private final int worldID;
+    private boolean fadeMe = false;
+
+    public GTSoundLoop(ResourceLocation p_i45104_1_, IGregTechTileEntity base, boolean stopWhenActive,
+        boolean stopWhenInactive) {
+        super(p_i45104_1_);
+        this.whileActive = stopWhenActive;
+        this.whileInactive = stopWhenInactive;
+        xPosF = base.getXCoord();
+        yPosF = base.getYCoord();
+        zPosF = base.getZCoord();
+        worldID = base.getWorld().provider.dimensionId;
+        repeat = true;
+        volume = VOLUME_RAMP;
+    }
+
+    public GTSoundLoop(ResourceLocation sound, MultiTileBasicMachine base, boolean stopWhenActive,
+        boolean stopWhenInactive) {
+        super(sound);
+        this.whileActive = stopWhenActive;
+        this.whileInactive = stopWhenInactive;
+        xPosF = base.getXCoord();
+        yPosF = base.getYCoord();
+        zPosF = base.getZCoord();
+        worldID = base.getWorld().provider.dimensionId;
+        repeat = true;
+        volume = VOLUME_RAMP;
+    }
+
+    @Override
+    public void update() {
+        if (donePlaying) {
+            return;
+        }
+        if (fadeMe) {
+            volume -= VOLUME_RAMP;
+            if (volume <= 0) {
+                volume = 0;
+                donePlaying = true;
+            }
+        } else if (volume < 1) {
+            volume += VOLUME_RAMP;
+        }
+        World world = Minecraft.getMinecraft().thePlayer.worldObj;
+        donePlaying = world.provider.dimensionId != worldID
+            || !world.checkChunksExist((int) xPosF, (int) yPosF, (int) zPosF, (int) xPosF, (int) yPosF, (int) zPosF);
+        if (donePlaying) return;
+        TileEntity tile = world.getTileEntity((int) xPosF, (int) yPosF, (int) zPosF);
+        if ((tile instanceof IGregTechTileEntity)) {
+            fadeMe |= ((IGregTechTileEntity) tile).isActive() ? whileActive : whileInactive;
+            return;
+        }
+
+        if ((tile instanceof MultiTileBasicMachine)) {
+            fadeMe |= ((MultiTileBasicMachine) tile).isActive() ? whileActive : whileInactive;
+            return;
+        }
+
+        donePlaying = true;
+    }
+}