v1.3: better tap accuracy, hold transitions & more

Author: phr00t

src/autostepper/AutoStepper.java

@@ -1,6 +1,13 @@
+/*
+   - nero the thrill seems to have a ~0.2 second position lag when hitting enter
+   - does this happen in other song files?
+
+*/
+
 package autostepper;
 
 import ddf.minim.AudioPlayer;
+import ddf.minim.AudioSample;
 import ddf.minim.Minim;
 import ddf.minim.MultiChannelBuffer;
 import ddf.minim.analysis.BeatDetect;
@@ -69,7 +76,7 @@ public static void main(String[] args) {
         minim = new Minim(myAS);
         String outputDir, input;
         float duration;
-        System.out.println("Starting AutoStepper by Phr00t's Software, v1.1 (See www.phr00t.com for more goodies!)");
+        System.out.println("Starting AutoStepper by Phr00t's Software, v1.3 (See www.phr00t.com for more goodies!)");
         if( hasArg(args, "help") || hasArg(args, "h") || hasArg(args, "?") || hasArg(args, "-help") || hasArg(args, "-?") || hasArg(args, "-h") ) {
             System.out.println("Argument usage (all fields are optional):\n"
                     + "input=<file or dir> output=<songs dir> duration=<seconds to process> synctime=<offset start time in seconds> tap=<true/false> hard=<true/false>");
@@ -220,33 +227,37 @@ public void AddCommonBPMs(TFloatArrayList common, TFloatArrayList times, float d
 
     public static float tappedOffset;
     public int getTappedBPM(String filename) {
-        AudioPlayer ap = minim.loadFile(filename, 2048);
+        // now we load the whole song so we don't have to worry about streaming a variable mp3 with timing inaccuracies
+        System.out.println("Loading whole song for tapping...");
+        AudioSample fullSong = minim.loadSample(filename);
         System.out.println("\n********************************************************************\n\nPress [ENTER] to start song, then press [ENTER] to tap to the beat.\nIt will complete after 30 entries.\nDon't worry about hitting the first beat, just start anytime.\n\n********************************************************************");
         TFloatArrayList positions = new TFloatArrayList();
         Scanner in = new Scanner(System.in);
         try {
             in.nextLine();
-        } catch(Exception e) { }
-        long milli = System.nanoTime();
-        ap.play();
-        milli = (System.nanoTime() + milli) / 2;
+        } catch(Exception e) { }        
+        // get the most accurate start time as possible
+        long nano = System.nanoTime();
+        fullSong.trigger();
+        nano = (System.nanoTime() + nano) / 2;
         try {
             for(int i=0;i<30;i++) {
-                while(System.in.available()==0) { }
+                in.nextLine();
+                // get two playtime values & average them together for accuracy
                 long now = System.nanoTime();
-                while(System.in.available()>0) { System.in.read(); }
-                double time = ((double)(now - milli) / 1000000000.0);            
-                positions.add((float)time);
+                // calculate the time difference
+                // we note a consistent 0.11 second delay in input to song here
+                double time = (double)((now - nano) / 1000000000.0) - 0.11;
+                positions.add((float)time);                
                 System.out.println("#" + positions.size() + "/30: " + time + "s");
             }
         } catch(Exception e) { }
-        ap.close();
-        //TFloatArrayList diffs = calculateDifferences(positions, 60f / (MAX_BPM * 2f));
-        //float mostCommon = getMostCommon(diffs, 0.025f);
+        fullSong.stop();
+        fullSong.close();
         float avg = ((positions.getQuick(positions.size()-1) - positions.getQuick(0)) / (positions.size() - 1));
         int BPM = (int)Math.floor(60f / avg);
         float timePerBeat = 60f / BPM;
-        tappedOffset = -getBestOffset(timePerBeat, positions, 0.1f) + timePerBeat * 0.5f;
+        tappedOffset = -getBestOffset(timePerBeat, positions, 0.1f);
         return BPM;
     }
 

src/autostepper/GoogleImageSearch.java

@@ -13,6 +13,7 @@
 import org.jsoup.Jsoup;
 import org.jsoup.nodes.Document;
 import org.jsoup.nodes.Element;
+import org.jsoup.select.Elements;
 
 public class GoogleImageSearch {
 
@@ -23,7 +24,12 @@ public static void FindAndSaveImage(String question, String destination) {
         try {
             String googleUrl = "https://www.google.com/search?as_st=y&tbm=isch&as_q=" + question.replace(",", "+").replace(" ", "+") + "&as_epq=&as_oq=&as_eq=&cr=&as_sitesearch=&safe=images&tbs=isz:lt,islt:vga,iar:w";
             Document doc1 = Jsoup.connect(googleUrl).userAgent(ua).timeout(8 * 1000).get();
-            Element media = doc1.select("[data-src]").first();
+            Elements elems = doc1.select("[data-src]");
+            if( elems.isEmpty() ) {
+                System.out.println("Couldn't find any images for: " + question);
+                return;
+            }
+            Element media = elems.first();
             String finUrl = media.attr("abs:data-src"); 
             saveImage(finUrl.replace("&quot", ""), destination);
         } catch (Exception e) {

src/autostepper/SMGenerator.java

@@ -104,7 +104,7 @@ public static void Complete(BufferedWriter smfile) {
 
     public static BufferedWriter GenerateSM(float BPM, float startTime, File songfile, String outputdir) {
         String filename = songfile.getName();
-        String songname = filename.replace(".mp3", " ").replace(".wav", " ").replace(".com", " ");
+        String songname = filename.replace(".mp3", " ").replace(".wav", " ").replace(".com", " ").replace(".org", " ").replace(".info", " ");
         String shortName = songname.length() > 30 ? songname.substring(0, 30) : songname;
         File dir = new File(outputdir, filename + "_dir/");
         dir.mkdirs();

src/autostepper/StepGenerator.java

@@ -6,6 +6,7 @@
 package autostepper;
 
 import gnu.trove.list.array.TFloatArrayList;
+import java.util.ArrayList;
 import java.util.Random;
 
 /**
@@ -44,7 +45,7 @@ static private int getRandomHold() {
     // make a note line, with lots of checks, balances & filtering
     static float[] holding = new float[4];
     static float lastJumpTime;
-    static String lastLine = "0000";
+    static ArrayList<char[]> AllNoteLines = new ArrayList<>();
     static float lastKickTime = 0f;
     static int commaSeperator, commaSeperatorReset, mineCount;
 
@@ -81,15 +82,20 @@ private static char[] getHoldStops(int currentHoldCount, float time, int holds)
         return holdstops;
     }
 
-    private static String getNoteLine(float time, int steps, int holds, boolean mines) {
+    private static String getNoteLineIndex(int i) {
+        if( i < 0 || i >= AllNoteLines.size() ) return "0000";
+        return String.valueOf(AllNoteLines.get(i));
+    }
+    
+    private static String getLastNoteLine() {
+        return getNoteLineIndex(AllNoteLines.size()-1);
+    }
+    
+    private static void makeNoteLine(String lastLine, float time, int steps, int holds, boolean mines) {
         if( steps == 0 ) {
-            lastLine = String.valueOf(getHoldStops(getHoldCount(), time, holds));
-            commaSeperator--;
-            if( commaSeperator <= 0 ) {
-                commaSeperator = commaSeperatorReset;
-                return lastLine + "\n,\n";
-            }            
-            return lastLine + "\n";
+            char[] ret = getHoldStops(getHoldCount(), time, holds);
+            AllNoteLines.add(ret);
+            return;
         }
         if( steps > 1 && time - lastJumpTime < (mines ? 2f : 4f) ) steps = 1; // don't spam jumps
         if( steps >= 2 ) {
@@ -103,6 +109,22 @@ private static String getNoteLine(float time, int steps, int holds, boolean mine
         if( steps + currentHoldCount > 2 ) steps = 2 - currentHoldCount;
         // are we stopping holds?
         char[] noteLine = getHoldStops(currentHoldCount, time, holds);
+        // if we are making a step, but just coming off a hold, move that hold end up to give proper
+        // time to make move to new step
+        if( steps > 0 && lastLine.contains("3") ) {
+            int currentIndex = AllNoteLines.size()-1;
+            char[] currentLine = AllNoteLines.get(currentIndex);
+            for(int i=0;i<4;i++) {
+                if( currentLine[i] == '3' ) {
+                    // got a hold stop here, lets move it up
+                    currentLine[i] = '0';
+                    char[] nextLineUp = AllNoteLines.get(currentIndex-1);
+                    if( nextLineUp[i] == '2' ) {
+                        nextLineUp[i] = '1';
+                    } else nextLineUp[i] = '3';
+                }
+            }
+        }
         // ok, make the steps
         String completeLine;
         char[] orig = new char[4];
@@ -145,18 +167,12 @@ private static String getNoteLine(float time, int steps, int holds, boolean mine
                 }
             }
             completeLine = String.valueOf(noteLine);
-        } while( completeLine.equals(lastLine) && completeLine.equals("0000") == false );
+        } while( completeLine.equals(String.valueOf(AllNoteLines.get(AllNoteLines.size()-1))) && completeLine.equals("0000") == false );
         if( willhold[0] > holding[0] ) holding[0] = willhold[0];
         if( willhold[1] > holding[1] ) holding[1] = willhold[1];
         if( willhold[2] > holding[2] ) holding[2] = willhold[2];
         if( willhold[3] > holding[3] ) holding[3] = willhold[3];
-        lastLine = completeLine;
-        commaSeperator--;
-        if( commaSeperator <= 0 ) {
-            completeLine += "\n,\n";
-            commaSeperator = commaSeperatorReset;
-        } else completeLine += "\n";
-        return completeLine;
+        AllNoteLines.add(noteLine);
     }
 
     private static boolean isNearATime(float time, TFloatArrayList timelist, float threshold) {
@@ -204,26 +220,25 @@ public static String GenerateNotes(int stepGranularity, int skipChance,
                                        float timePerBeat, float timeOffset, float totalTime,
                                        boolean allowMines) {      
         // reset variables
-        lastLine = "0000";
+        AllNoteLines.clear();
         lastJumpTime = -10f;
         holding[0] = 0f;
         holding[1] = 0f;
         holding[2] = 0f;
         holding[3] = 0f;
         lastKickTime = 0f;
-        String AllNotes = "";
         commaSeperatorReset = 4 * stepGranularity;
-        commaSeperator = commaSeperatorReset;
         float lastSkippedTime = -10f;
         int totalStepsMade = 0, timeIndex = 0;
         boolean skippedLast = false;
         float timeGranularity = timePerBeat / stepGranularity;
         for(float t = timeOffset; t <= totalTime; t += timeGranularity) {
             int steps = 0, holds = 0;
+            String lastLine = getLastNoteLine();
             if( t > 0f ) {
                 float fftavg = getFFT(t, FFTAverages, timePerFFT);
                 float fftmax = getFFT(t, FFTMaxes, timePerFFT);
-                boolean sustained = sustainedFFT(t, 0.75f, timeGranularity, timePerFFT, FFTMaxes, FFTAverages, 0.25f, 0.5f);
+                boolean sustained = sustainedFFT(t, 0.75f, timeGranularity, timePerFFT, FFTMaxes, FFTAverages, 0.25f, 0.45f);
                 boolean nearKick = isNearATime(t, fewTimes[AutoStepper.KICKS], timePerBeat / stepGranularity);
                 boolean nearSnare = isNearATime(t, fewTimes[AutoStepper.SNARE], timePerBeat / stepGranularity);
                 boolean nearEnergy = isNearATime(t, fewTimes[AutoStepper.ENERGY], timePerBeat / stepGranularity);
@@ -249,15 +264,27 @@ public static String GenerateNotes(int stepGranularity, int skipChance,
                 }                
             }
             if( AutoStepper.DEBUG_STEPS ) {
-                AllNotes += getNoteLine(t, timeIndex % 2 == 0 ? 1 : 0, -2, allowMines);
-            } else AllNotes += getNoteLine(t, steps, holds, allowMines);
+                makeNoteLine(lastLine, t, timeIndex % 2 == 0 ? 1 : 0, -2, allowMines);
+            } else makeNoteLine(lastLine, t, steps, holds, allowMines);
             totalStepsMade += steps;
             timeIndex++;
         }
+        // ok, put together AllNotes
+        String AllNotes = "";
+        commaSeperator = commaSeperatorReset;
+        for(int i=0;i<AllNoteLines.size();i++) {
+            AllNotes += getNoteLineIndex(i) + "\n";
+            commaSeperator--;
+            if( commaSeperator == 0 ) {
+                AllNotes += ",\n";
+                commaSeperator = commaSeperatorReset;
+            }
+        }
         // fill out the last empties
         while( commaSeperator > 0 ) {
-            AllNotes += "3333\n";
+            AllNotes += "3333";
             commaSeperator--;
+            if( commaSeperator > 0 ) AllNotes += "\n";
         }
         int _stepCount = AllNotes.length() - AllNotes.replace("1", "").length();
         int _holdCount = AllNotes.length() - AllNotes.replace("2", "").length();