Added Keyframe Repository, which is stored in Replay File itself and allows Camera Path Presets to be saved and loaded

src/main/java/eu/crushedpixel/replaymod/holders/KeyframeSet.java

@@ -0,0 +1,90 @@
+package eu.crushedpixel.replaymod.holders;
+
+import org.apache.commons.lang3.builder.HashCodeBuilder;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class KeyframeSet {
+    private String name;
+    private PositionKeyframe[] positionKeyframes;
+    private TimeKeyframe[] timeKeyframes;
+
+    public KeyframeSet(String name, Keyframe[] keyframes) {
+        this.name = name;
+        setKeyframes(keyframes);
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public void setKeyframes(Keyframe[] keyframes) {
+        List<PositionKeyframe> posKFList = new ArrayList<PositionKeyframe>();
+        List<TimeKeyframe> timeKFList = new ArrayList<TimeKeyframe>();
+
+        for(Keyframe kf : keyframes) {
+            if(kf instanceof PositionKeyframe)
+                posKFList.add((PositionKeyframe)kf);
+            else if(kf instanceof TimeKeyframe)
+                timeKFList.add((TimeKeyframe) kf);
+        }
+
+        positionKeyframes = posKFList.toArray(new PositionKeyframe[posKFList.size()]);
+        timeKeyframes = timeKFList.toArray(new TimeKeyframe[timeKFList.size()]);
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public Keyframe[] getKeyframes() {
+        List<Keyframe> kfList = new ArrayList<Keyframe>();
+        for(Keyframe kf : positionKeyframes) kfList.add(kf);
+        for(Keyframe kf : timeKeyframes) kfList.add(kf);
+        return kfList.toArray(new Keyframe[kfList.size()]);
+    }
+
+    public int getTimeKeyframeCount() {
+        return timeKeyframes.length;
+    }
+
+    public int getPositionKeyframeCount() {
+        return positionKeyframes.length;
+    }
+
+    public int getPathDuration() {
+        int first = 0;
+        int last = 0;
+
+        for(Keyframe k : getKeyframes()) {
+            if(k.getRealTimestamp() < first) {
+                first = k.getRealTimestamp();
+            } else if(k.getRealTimestamp() > last) {
+                last = k.getRealTimestamp();
+            }
+        }
+
+        return last-first;
+    }
+
+    @Override
+    public String toString() {
+        return name;
+    }
+
+    @Override
+    public boolean equals(Object o2) {
+        if(o2 == null) return false;
+        if(!(o2 instanceof KeyframeSet)) return false;
+        KeyframeSet set2 = (KeyframeSet)o2;
+        return hashCode() == set2.hashCode();
+    }
+
+    @Override
+    public int hashCode() {
+        return new HashCodeBuilder(17, 37)
+                .append(getKeyframes())
+                .toHashCode();
+    }
+}