diff --git a/gradle.properties b/gradle.properties
index 12688c5..25361f7 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -4,7 +4,7 @@ jarName = BetterFoliage-MC1.10.2
 version = 2.2.0
 
 mc_version = 1.10.2
-forge_version = 12.18.2.2121
-mcp_mappings = snapshot_20160905
+forge_version = 12.18.3.2185
+mcp_mappings = stable_29
 
-kotlin_version = 1.1.1
\ No newline at end of file
+kotlin_version = 1.2.0
\ No newline at end of file
diff --git a/src/main/kotlin/mods/betterfoliage/client/Client.kt b/src/main/kotlin/mods/betterfoliage/client/Client.kt
index 61e95af..c6b8461 100644
--- a/src/main/kotlin/mods/betterfoliage/client/Client.kt
+++ b/src/main/kotlin/mods/betterfoliage/client/Client.kt
@@ -95,7 +95,7 @@ object Client {
 
         val blockName = Block.REGISTRY.getNameForObject(state.block).toString()
         val blockLoc = "${location.x},${location.y},${location.z}"
-        Minecraft.getMinecraft().thePlayer.addChatMessage(TextComponentTranslation(
+        Minecraft.getMinecraft().ingameGUI.chatGUI.printChatMessage(TextComponentTranslation(
             "betterfoliage.rendererror",
             textComponent(blockName, TextFormatting.GOLD),
             textComponent(blockLoc, TextFormatting.GOLD)
diff --git a/src/main/kotlin/mods/betterfoliage/client/render/EntityFallingLeavesFX.kt b/src/main/kotlin/mods/betterfoliage/client/render/EntityFallingLeavesFX.kt
index 089568c..03013fb 100644
--- a/src/main/kotlin/mods/betterfoliage/client/render/EntityFallingLeavesFX.kt
+++ b/src/main/kotlin/mods/betterfoliage/client/render/EntityFallingLeavesFX.kt
@@ -40,7 +40,7 @@ AbstractEntityFX(world, pos.x.toDouble() + 0.5, pos.y.toDouble(), pos.z.toDouble
     var wasCollided = false
 
     init {
-        particleMaxAge = MathHelper.floor_double(random(0.6, 1.0) * Config.fallingLeaves.lifetime * 20.0)
+        particleMaxAge = MathHelper.floor(random(0.6, 1.0) * Config.fallingLeaves.lifetime * 20.0)
         motionY = -Config.fallingLeaves.speed
         particleScale = Config.fallingLeaves.size.toFloat() * 0.1f
 
@@ -119,7 +119,7 @@ object LeafWindTracker {
 
     @SubscribeEvent
     fun handleWorldTick(event: TickEvent.ClientTickEvent) {
-        if (event.phase == TickEvent.Phase.START) Minecraft.getMinecraft().theWorld?.let { world ->
+        if (event.phase == TickEvent.Phase.START) Minecraft.getMinecraft().world?.let { world ->
             // change target wind speed
             if (world.worldInfo.worldTime >= nextChange) changeWind(world)
 
diff --git a/src/main/kotlin/mods/betterfoliage/client/render/EntityRisingSoulFX.kt b/src/main/kotlin/mods/betterfoliage/client/render/EntityRisingSoulFX.kt
index fe4fcaa..e23f39f 100644
--- a/src/main/kotlin/mods/betterfoliage/client/render/EntityRisingSoulFX.kt
+++ b/src/main/kotlin/mods/betterfoliage/client/render/EntityRisingSoulFX.kt
@@ -27,7 +27,7 @@ AbstractEntityFX(world, pos.x.toDouble() + 0.5, pos.y.toDouble() + 1.0, pos.z.to
         motionY = 0.1
         particleGravity = 0.0f
         particleTexture = RisingSoulTextures.headIcons[rand.nextInt(256)]
-        particleMaxAge = MathHelper.floor_double((0.6 + 0.4 * rand.nextDouble()) * Config.risingSoul.lifetime * 20.0)
+        particleMaxAge = MathHelper.floor((0.6 + 0.4 * rand.nextDouble()) * Config.risingSoul.lifetime * 20.0)
     }
 
     override val isValid: Boolean get() = true
diff --git a/src/main/kotlin/mods/octarinecore/client/render/AbstractBlockRenderingHandler.kt b/src/main/kotlin/mods/octarinecore/client/render/AbstractBlockRenderingHandler.kt
index cded593..9c58d3a 100644
--- a/src/main/kotlin/mods/octarinecore/client/render/AbstractBlockRenderingHandler.kt
+++ b/src/main/kotlin/mods/octarinecore/client/render/AbstractBlockRenderingHandler.kt
@@ -114,8 +114,8 @@ class BlockContext {
     /** Get the distance of the block from the camera (player). */
     val cameraDistance: Int get() {
         val camera = Minecraft.getMinecraft().renderViewEntity ?: return 0
-        return Math.abs(pos.x - MathHelper.floor_double(camera.posX)) +
-               Math.abs(pos.y - MathHelper.floor_double(camera.posY)) +
-               Math.abs(pos.z - MathHelper.floor_double(camera.posZ))
+        return Math.abs(pos.x - MathHelper.floor(camera.posX)) +
+               Math.abs(pos.y - MathHelper.floor(camera.posY)) +
+               Math.abs(pos.z - MathHelper.floor(camera.posZ))
     }
 }
\ No newline at end of file
diff --git a/src/main/kotlin/mods/octarinecore/client/resource/ResourceHandler.kt b/src/main/kotlin/mods/octarinecore/client/resource/ResourceHandler.kt
index 550c3d1..c6aa189 100644
--- a/src/main/kotlin/mods/octarinecore/client/resource/ResourceHandler.kt
+++ b/src/main/kotlin/mods/octarinecore/client/resource/ResourceHandler.kt
@@ -90,7 +90,7 @@ class IconSet(val domain: String, val namePattern: String) : IStitchListener {
     var num = 0
 
     override fun onStitch(atlas: TextureMap) {
-        num = 0;
+        num = 0
         (0..15).forEach { idx ->
             icons[idx] = null
             val locReal = ResourceLocation(domain, "textures/${namePattern.format(idx)}.png")
@@ -103,13 +103,13 @@ class IconSet(val domain: String, val namePattern: String) : IStitchListener {
 
 class ModelSet(val num: Int, val init: Model.(Int)->Unit): IConfigChangeListener {
     val models = Array(num) { Model().apply{ init(it) } }
-    override fun onConfigChange() { (0..num-1).forEach { models[it] = Model().apply{ init(it) } } }
+    override fun onConfigChange() { (0 until num).forEach { models[it] = Model().apply{ init(it) } } }
     operator fun get(idx: Int) = models[idx % num]
 }
 
 class VectorSet(val num: Int, val init: (Int)->Double3): IConfigChangeListener {
     val models = Array(num) { init(it) }
-    override fun onConfigChange() { (0..num-1).forEach { models[it] = init(it) } }
+    override fun onConfigChange() { (0 until num).forEach { models[it] = init(it) } }
     operator fun get(idx: Int) = models[idx % num]
 }
 
@@ -117,7 +117,7 @@ class SimplexNoise() : IWorldLoadListener {
     var noise = NoiseGeneratorSimplex()
     override fun onWorldLoad(world: World) { noise = NoiseGeneratorSimplex(Random(world.worldInfo.seed))
     }
-    operator fun get(x: Int, z: Int) = MathHelper.floor_double((noise.getValue(x.toDouble(), z.toDouble()) + 1.0) * 32.0)
+    operator fun get(x: Int, z: Int) = MathHelper.floor((noise.getValue(x.toDouble(), z.toDouble()) + 1.0) * 32.0)
     operator fun get(pos: Int3) = get(pos.x, pos.z)
     operator fun get(pos: BlockPos) = get(pos.x, pos.z)
 }
\ No newline at end of file