v0.3.0: added Ethereal Chains

src/com/shatteredpixel/shatteredpixeldungeon/actors/hero/Hero.java

@@ -65,6 +65,7 @@ import com.shatteredpixel.shatteredpixeldungeon.items.KindOfWeapon;
 import com.shatteredpixel.shatteredpixeldungeon.items.armor.glyphs.Viscosity;
 import com.shatteredpixel.shatteredpixeldungeon.items.artifacts.CapeOfThorns;
 import com.shatteredpixel.shatteredpixeldungeon.items.artifacts.DriedRose;
+import com.shatteredpixel.shatteredpixeldungeon.items.artifacts.EtherealChains;
 import com.shatteredpixel.shatteredpixeldungeon.items.artifacts.TalismanOfForesight;
 import com.shatteredpixel.shatteredpixeldungeon.items.artifacts.TimekeepersHourglass;
 import com.shatteredpixel.shatteredpixeldungeon.items.keys.GoldenKey;
@@ -1092,10 +1093,13 @@ public class Hero extends Char {
 	public void earnExp( int exp ) {
 		
 		this.exp += exp;
+		float percent = exp/(float)maxExp();
+
+		EtherealChains.chainsRecharge chains = buff(EtherealChains.chainsRecharge.class);
+		if (chains != null) chains.gainExp(percent);
 
 		if (subClass == HeroSubClass.WARLOCK) {
 
-			float percent = exp/(float)maxExp();
 			int healed = Math.round(Math.min(HT - HP, HT * percent * 0.3f));
 			if (healed > 0) {
 				HP += healed;

src/com/shatteredpixel/shatteredpixeldungeon/effects/Chains.java

@@ -0,0 +1,84 @@
+package com.shatteredpixel.shatteredpixeldungeon.effects;
+
+import com.shatteredpixel.shatteredpixeldungeon.DungeonTilemap;
+import com.watabou.noosa.Game;
+import com.watabou.noosa.Group;
+import com.watabou.noosa.Image;
+import com.watabou.utils.Callback;
+import com.watabou.utils.PointF;
+
+/**
+ * Created by Evan on 23/05/2015.
+ */
+public class Chains extends Group {
+
+	private static final double A = 180 / Math.PI;
+
+	private float spent = 0f;
+	private float duration;
+
+	private Callback callback;
+
+	private Image[] chains;
+	private int numChains;
+	private float distance;
+	private float rotation = 0;
+
+	private PointF from, to;
+
+	public Chains(int from, int to, Callback callback){
+		this(DungeonTilemap.tileCenterToWorld(from),
+				DungeonTilemap.tileCenterToWorld(to),
+				callback);
+	}
+
+	public Chains(PointF from, PointF to, Callback callback){
+		super();
+
+		this.callback = callback;
+
+		this.from = from;
+		this.to = to;
+
+		float dx = to.x - from.x;
+		float dy = to.y - from.y;
+		distance = (float)Math.hypot(dx, dy);
+
+
+		duration = distance/300f + 0.1f;
+
+		rotation = (float)(Math.atan2( dy, dx ) * A) + 90f;
+
+		numChains = Math.round(distance/6f)+1;
+
+		chains = new Image[numChains];
+		for (int i = 0; i < chains.length; i++){
+			chains[i] = new Image(Effects.get(Effects.Type.CHAIN));
+			chains[i].angle = rotation;
+			chains[i].origin.set( chains[i].width()/ 2, chains[i].height() );
+			add(chains[i]);
+		}
+	}
+
+	@Override
+	public void update() {
+		if ((spent += Game.elapsed) > duration) {
+
+			killAndErase();
+			if (callback != null) {
+				callback.call();
+			}
+
+		} else {
+			float dx = to.x - from.x;
+			float dy = to.y - from.y;
+			for (int i = 0; i < chains.length; i++) {
+				chains[i].center(new PointF(
+						from.x + ((dx * (i / (float)chains.length)) * (spent/duration)),
+						from.y + ((dy * (i / (float)chains.length)) * (spent/duration))
+				));
+			}
+		}
+	}
+
+}

src/com/shatteredpixel/shatteredpixeldungeon/effects/Effects.java

@@ -27,6 +27,7 @@ public class Effects {
 		LIGHTNING,
 		WOUND,
 		EXCLAMATION,
+		CHAIN,
 		DEATH_RAY,
 		LIGHT_RAY,
 		HEALTH_RAY
@@ -47,6 +48,9 @@ public class Effects {
 			case EXCLAMATION:
 				icon.frame(icon.texture.uvRect(0, 16, 6, 25));
 				break;
+			case CHAIN:
+				icon.frame(icon.texture.uvRect(6, 16, 11, 22));
+				break;
 			case DEATH_RAY:
 				icon.frame(icon.texture.uvRect(16, 16, 32, 24));
 				break;

src/com/shatteredpixel/shatteredpixeldungeon/items/Generator.java

@@ -193,10 +193,10 @@ public class Generator {
             UnstableSpellbook.class,
             AlchemistsToolkit.class, //currently removed from drop tables, pending rework.
             DriedRose.class, //starts with no chance of spawning, chance is set directly after beating ghost quest.
-	        LloydsBeacon.class
+	        LloydsBeacon.class,
-	        /*EtherealChains.class*/
+	        EtherealChains.class
             };
-        Category.ARTIFACT.probs = new float[]{ 0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 0 /*, 1*/};
+        Category.ARTIFACT.probs = new float[]{ 0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 0 , 1};
 		
 		Category.SEED.classes = new Class<?>[]{ 
 			Firebloom.Seed.class,

src/com/shatteredpixel/shatteredpixeldungeon/items/artifacts/EtherealChains.java

@@ -0,0 +1,196 @@
+package com.shatteredpixel.shatteredpixeldungeon.items.artifacts;
+
+import com.shatteredpixel.shatteredpixeldungeon.Dungeon;
+import com.shatteredpixel.shatteredpixeldungeon.actors.Actor;
+import com.shatteredpixel.shatteredpixeldungeon.actors.Char;
+import com.shatteredpixel.shatteredpixeldungeon.actors.hero.Hero;
+import com.shatteredpixel.shatteredpixeldungeon.effects.Chains;
+import com.shatteredpixel.shatteredpixeldungeon.effects.Pushing;
+import com.shatteredpixel.shatteredpixeldungeon.levels.Level;
+import com.shatteredpixel.shatteredpixeldungeon.mechanics.Ballistica;
+import com.shatteredpixel.shatteredpixeldungeon.scenes.CellSelector;
+import com.shatteredpixel.shatteredpixeldungeon.scenes.GameScene;
+import com.shatteredpixel.shatteredpixeldungeon.sprites.ItemSpriteSheet;
+import com.shatteredpixel.shatteredpixeldungeon.utils.GLog;
+import com.watabou.utils.Callback;
+
+import java.util.ArrayList;
+
+/**
+ * Created by Evan on 23/05/2015.
+ */
+public class EtherealChains extends Artifact {
+
+	public static final String AC_CAST       = "CAST";
+
+	{
+		name = "ethereal chains";
+		image = ItemSpriteSheet.ARTIFACT_CHAINS;
+
+		level = 0;
+		levelCap = 5;
+		exp = 0;
+
+		charge = 0;
+
+		defaultAction = AC_CAST;
+	}
+
+	@Override
+	public ArrayList<String> actions(Hero hero) {
+		ArrayList<String> actions = super.actions( hero );
+		if (isEquipped(hero) && charge > 0 && !cursed)
+			actions.add(AC_CAST);
+		return actions;
+	}
+
+	@Override
+	public void execute(Hero hero, String action) {
+		if (action.equals(AC_CAST)){
+
+			curUser = hero;
+
+			if      (!isEquipped( hero ))       GLog.i("You need to equip the chains to do that.");
+			else if (charge < 1)                GLog.i("Your chains do not have any available charge.");
+			else if (cursed)                    GLog.w("You can't use cursed chains.");
+			else {
+				GameScene.selectCell(caster);
+			}
+
+		} else
+			super.execute(hero, action);
+	}
+
+	private CellSelector.Listener caster = new CellSelector.Listener(){
+
+		@Override
+		public void onSelect(Integer target) {
+			if (target != null && (Dungeon.level.visited[target] || Dungeon.level.mapped[target])){
+				final Ballistica chain = new Ballistica(curUser.pos, target, Ballistica.STOP_CHARS | Ballistica.STOP_TARGET);
+
+				//determine if we're grabbing an enemy, pulling to a location, or doing nothing.
+				if (Actor.findChar( chain.collisionPos ) != null){
+					int newPos = -1;
+					for (int i : chain.subPath(1, chain.dist)){
+						if (!Level.solid[i] && Actor.findChar(i) == null){
+							newPos = i;
+							break;
+						}
+					}
+					if (newPos == -1){
+						GLog.w("That won't do anything");
+					} else {
+						final int newMobPos = newPos;
+						final Char affected = Actor.findChar( chain.collisionPos );
+						int chargeUse = Level.distance(affected.pos, newMobPos);
+						if (chargeUse > charge){
+							GLog.w("Your chains do not have enough charge.");
+							return;
+						} else {
+							charge -= chargeUse;
+							updateQuickslot();
+						}
+						curUser.busy();
+						curUser.sprite.parent.add(new Chains(curUser.pos, affected.pos, new Callback() {
+							public void call() {
+								Actor.add(new Pushing(affected, affected.pos, newMobPos));
+								affected.pos = newMobPos;
+								Dungeon.observe();
+								curUser.spendAndNext(1f);
+								Dungeon.level.press(newMobPos, affected);
+							}
+						}));
+					}
+
+				} else if (Level.solid[chain.path.get(chain.dist)]
+						|| (chain.dist > 0 && Level.solid[chain.path.get(chain.dist-1)])
+						|| (chain.path.size() > chain.dist+1 && Level.solid[chain.path.get(chain.dist+1)])
+						//if the player is trying to grapple the edge of the map, let them.
+						|| (chain.path.size() == chain.dist+1)) {
+					int newPos = -1;
+					for (int i : chain.subPath(1, chain.dist)){
+						if (!Level.solid[i] && Actor.findChar(i) == null) newPos = i;
+						}
+					if (newPos == -1) {
+						GLog.w("That won't do anything");
+					} else {
+						final int newHeroPos = newPos;
+						int chargeUse = Level.distance(curUser.pos, newHeroPos);
+						if (chargeUse > charge){
+							GLog.w("Your chains do not have enough charge.");
+							return;
+						} else {
+							charge -= chargeUse;
+							updateQuickslot();
+						}
+						curUser.busy();
+						curUser.sprite.parent.add(new Chains(curUser.pos, target, new Callback() {
+							public void call() {
+								Actor.add(new Pushing(curUser, curUser.pos, newHeroPos));
+								curUser.pos = newHeroPos;
+								Dungeon.observe();
+								curUser.spendAndNext(1f);
+								Dungeon.level.press(newHeroPos, curUser);
+							}
+						}));
+					}
+
+				} else {
+					GLog.i("There is nothing to grab there");
+				}
+
+			}
+
+		}
+
+		@Override
+		public String prompt() {
+			return "Choose a location to target";
+		}
+	};
+
+	@Override
+	protected ArtifactBuff passiveBuff() {
+		return new chainsRecharge();
+	}
+
+	//TODO: description
+	@Override
+	public String desc() {
+		return super.desc();
+	}
+
+	public class chainsRecharge extends ArtifactBuff{
+
+		@Override
+		public boolean act() {
+			int chargeTarget = 5+level;
+			if (charge < chargeTarget) {
+				partialCharge += 1 / (40f - (chargeTarget - charge)*3f);
+			}
+
+			if (partialCharge >= 1) {
+				partialCharge --;
+				charge ++;
+			}
+
+			updateQuickslot();
+
+			spend( TICK );
+
+			return true;
+		}
+
+		public void gainExp( float levelPortion ) {
+			exp += Math.round(levelPortion*100);
+			partialCharge += levelPortion*10f;
+
+			if (exp > 100+level*50){
+				exp -= 100+level*50;
+				GLog.p("Your chains grow stronger!");
+				upgrade();
+			}
+
+		}
+	}
+}