more oop shit for state transitions

src/yugecin/opsudance/states/transitions/FadeInTransitionState.java

@@ -21,7 +21,7 @@ import com.google.inject.Inject;
 import yugecin.opsudance.core.Container;
 import yugecin.opsudance.core.Demux;
 
-public class FadeInTransitionState extends TransitionState {
+public class FadeInTransitionState extends FadeTransitionState {
 
 	private final Demux demux;
 
@@ -32,8 +32,8 @@ public class FadeInTransitionState extends TransitionState {
 	}
 
 	@Override
-	protected float getMaskAlphaLevel() {
-		return 1f - (float) fadeTime / fadeTargetTime;
+	protected float getMaskAlphaLevel(float fadeProgress) {
+		return 1f - fadeProgress;
 	}
 
 	@Override
@@ -43,7 +43,7 @@ public class FadeInTransitionState extends TransitionState {
 	}
 
 	@Override
-	protected void onFadeFinished() {
+	protected void onTransitionFinished() {
 		demux.switchStateNow(applicableState);
 	}
 

src/yugecin/opsudance/states/transitions/FadeOutTransitionState.java

@@ -21,7 +21,7 @@ import com.google.inject.Inject;
 import yugecin.opsudance.core.Container;
 import yugecin.opsudance.core.Demux;
 
-public class FadeOutTransitionState extends TransitionState {
+public class FadeOutTransitionState extends FadeTransitionState {
 
 	private final Demux demux;
 	private final FadeInTransitionState fadeInTransitionState;
@@ -34,14 +34,15 @@ public class FadeOutTransitionState extends TransitionState {
 	}
 
 	@Override
-	protected float getMaskAlphaLevel() {
-		return (float) fadeTime / fadeTargetTime;
+	protected float getMaskAlphaLevel(float fadeProgress) {
+		return fadeProgress;
 	}
 
 	@Override
-	protected void onFadeFinished() {
+	protected void onTransitionFinished() {
 		applicableState.leave();
 		demux.switchStateNow(fadeInTransitionState);
 		fadeInTransitionState.enter();
 	}
+
 }

src/yugecin/opsudance/states/transitions/FadeTransitionState.java

@@ -0,0 +1,74 @@
+/*
+ * opsu!dance - fork of opsu! with cursordance auto
+ * Copyright (C) 2017 yugecin
+ *
+ * opsu!dance is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * opsu!dance is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with opsu!dance.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package yugecin.opsudance.states.transitions;
+
+import org.newdawn.slick.Color;
+import org.newdawn.slick.Graphics;
+import yugecin.opsudance.core.Container;
+import yugecin.opsudance.states.GameState;
+
+public abstract class FadeTransitionState extends TransitionState {
+
+	protected GameState applicableState;
+
+	private final Container container;
+
+	protected final int fadeTargetTime;
+	protected int fadeTime;
+
+	private final Color black;
+
+	public FadeTransitionState(Container container, int fadeTargetTime) {
+		super(fadeTargetTime);
+		this.container = container;
+		this.fadeTargetTime = fadeTargetTime;
+		black = new Color(Color.black);
+	}
+
+	public void setApplicableState(GameState applicableState) {
+		this.applicableState = applicableState;
+	}
+
+	@Override
+	public void update(int delta) {
+		applicableState.update(delta);
+		fadeTime += delta;
+		if (fadeTime >= fadeTargetTime) {
+			onTransitionFinished();
+		}
+	}
+
+	@Override
+	public void render(Graphics g) {
+		applicableState.render(g);
+		black.a = getMaskAlphaLevel((float) fadeTime / fadeTargetTime);
+		g.setColor(black);
+		g.fillRect(0, 0, container.getWidth(), container.getHeight());
+	}
+
+	@Override
+	public void enter() {
+		fadeTime = 0;
+	}
+
+	@Override
+	public void leave() { }
+
+	protected abstract float getMaskAlphaLevel(float fadeProgress);
+
+}

src/yugecin/opsudance/states/transitions/TransitionState.java

@@ -17,26 +17,18 @@
  */
 package yugecin.opsudance.states.transitions;
 
-import org.newdawn.slick.Color;
 import org.newdawn.slick.Graphics;
-import yugecin.opsudance.core.Container;
 import yugecin.opsudance.states.GameState;
 
 public abstract class TransitionState implements GameState {
 
 	protected GameState applicableState;
 
-	private final Container container;
+	protected final int transitionTargetTime;
+	protected int transitionTime;
 
-	protected final int fadeTargetTime;
-	protected int fadeTime;
-
-	private final Color black;
-
-	public TransitionState(Container container, int fadeTargetTime) {
-		this.container = container;
-		this.fadeTargetTime = fadeTargetTime;
-		black = new Color(Color.black);
+	public TransitionState(int transitionTargetTime) {
+		this.transitionTargetTime = transitionTargetTime;
 	}
 
 	public void setApplicableState(GameState applicableState) {
@@ -46,29 +38,25 @@ public abstract class TransitionState implements GameState {
 	@Override
 	public void update(int delta) {
 		applicableState.update(delta);
-		fadeTime += delta;
-		if (fadeTime >= fadeTargetTime) {
-			onFadeFinished();
+		transitionTime += delta;
+		if (transitionTime >= transitionTargetTime) {
+			onTransitionFinished();
 		}
 	}
 
 	@Override
 	public void render(Graphics g) {
 		applicableState.render(g);
-		black.a = getMaskAlphaLevel();
-		g.setColor(black);
-		g.fillRect(0, 0, container.getWidth(), container.getHeight());
 	}
 
 	@Override
 	public void enter() {
-		fadeTime = 0;
+		transitionTime = 0;
 	}
 
 	@Override
 	public void leave() { }
 
-	protected abstract float getMaskAlphaLevel();
-	protected abstract void onFadeFinished();
+	protected abstract void onTransitionFinished();
 
 }