Capes

src/main/java/net/minecraft/client/renderer/entity/layers/LayerCape.java

@@ -35,8 +35,55 @@ public class LayerCape implements LayerRenderer<AbstractClientPlayer> {
 		this.playerRenderer = playerRendererIn;
 	}
 
-	public void doRenderLayer(AbstractClientPlayer abstractclientplayer, float var2, float var3, float f, float var5,
-			float var6, float var7, float var8) {
+	public void doRenderLayer(AbstractClientPlayer abstractclientplayer, float var2, float var3, float f, float var5, float var6, float var7, float var8) {
+		if (abstractclientplayer.hasPlayerInfo() && !abstractclientplayer.isInvisible()
+				&& abstractclientplayer.isWearing(EnumPlayerModelParts.CAPE)
+				&& this.playerRenderer.getMainModel() instanceof ModelPlayer) {
+			GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
+			this.playerRenderer.bindTexture(new ResourceLocation("/capes/cape.png"));
+			GlStateManager.pushMatrix();
+			GlStateManager.translate(0.0F, 0.0F, 0.125F);
+			double d0 = abstractclientplayer.prevChasingPosX
+					+ (abstractclientplayer.chasingPosX - abstractclientplayer.prevChasingPosX) * (double) f
+					- (abstractclientplayer.prevPosX
+							+ (abstractclientplayer.posX - abstractclientplayer.prevPosX) * (double) f);
+			double d1 = abstractclientplayer.prevChasingPosY
+					+ (abstractclientplayer.chasingPosY - abstractclientplayer.prevChasingPosY) * (double) f
+					- (abstractclientplayer.prevPosY
+							+ (abstractclientplayer.posY - abstractclientplayer.prevPosY) * (double) f);
+			double d2 = abstractclientplayer.prevChasingPosZ
+					+ (abstractclientplayer.chasingPosZ - abstractclientplayer.prevChasingPosZ) * (double) f
+					- (abstractclientplayer.prevPosZ
+							+ (abstractclientplayer.posZ - abstractclientplayer.prevPosZ) * (double) f);
+			float f1 = abstractclientplayer.prevRenderYawOffset
+					+ (abstractclientplayer.renderYawOffset - abstractclientplayer.prevRenderYawOffset) * f;
+			double d3 = (double) MathHelper.sin(f1 * 3.1415927F / 180.0F);
+			double d4 = (double) (-MathHelper.cos(f1 * 3.1415927F / 180.0F));
+			float f2 = (float) d1 * 10.0F;
+			f2 = MathHelper.clamp_float(f2, -6.0F, 32.0F);
+			float f3 = (float) (d0 * d3 + d2 * d4) * 100.0F;
+			float f4 = (float) (d0 * d4 - d2 * d3) * 100.0F;
+			if (f3 < 0.0F) {
+				f3 = 0.0F;
+			}
+
+			float f5 = abstractclientplayer.prevCameraYaw
+					+ (abstractclientplayer.cameraYaw - abstractclientplayer.prevCameraYaw) * f;
+			f2 = f2 + MathHelper.sin((abstractclientplayer.prevDistanceWalkedModified
+					+ (abstractclientplayer.distanceWalkedModified - abstractclientplayer.prevDistanceWalkedModified)
+							* f)
+					* 6.0F) * 32.0F * f5;
+			if (abstractclientplayer.isSneaking()) {
+				f2 += 25.0F;
+			}
+
+			GlStateManager.rotate(6.0F + f3 / 2.0F + f2, 1.0F, 0.0F, 0.0F);
+			GlStateManager.rotate(f4 / 2.0F, 0.0F, 0.0F, 1.0F);
+			GlStateManager.rotate(-f4 / 2.0F, 0.0F, 1.0F, 0.0F);
+			GlStateManager.rotate(180.0F, 0.0F, 1.0F, 0.0F);
+			((ModelPlayer) this.playerRenderer.getMainModel()).renderCape(0.0625F);
+			GlStateManager.popMatrix();
+		}
 	}
 
 	public boolean shouldCombineTextures() {