add more DisplayEntity Data

- interpolation
- shadow radius/strength
- view range

Author: Faithcaio

src/main/java/org/spongepowered/api/data/Keys.java

@@ -1422,6 +1422,16 @@ public final class Keys {
      */
     public static final Key<Value<InstrumentType>> INSTRUMENT_TYPE = Keys.key(ResourceKey.sponge("instrument_type"), InstrumentType.class);
 
+    /**
+     * The interpolation delay of a {@link DisplayEntity}
+     */
+    public static final Key<Value<Ticks>> INTERPOLATION_DELAY = Keys.key(ResourceKey.sponge("interpolation_delay"), Ticks.class);
+
+    /**
+     * The interpolation duration of a {@link DisplayEntity}
+     */
+    public static final Key<Value<Ticks>> INTERPOLATION_DURATION = Keys.key(ResourceKey.sponge("interpolation_duration"), Ticks.class);
+
     /**
      * Whether a {@link BlockTypes#DAYLIGHT_DETECTOR} {@link BlockState} is inverted.
      */
@@ -2717,6 +2727,16 @@ public final class Keys {
      */
     public static final Key<Value<SerializationBehavior>> SERIALIZATION_BEHAVIOR = Keys.key(ResourceKey.sponge("serialization_behavior"), SerializationBehavior.class);
 
+    /**
+     * The shadow radius of a {@link DisplayEntity}
+     */
+    public static final Key<Value<Double>> SHADOW_RADIUS = Keys.key(ResourceKey.sponge("shadow_radius"), Double.class);
+
+    /**
+     * The shadow strength duration of a {@link DisplayEntity}
+     */
+    public static final Key<Value<Double>> SHADOW_STRENGTH = Keys.key(ResourceKey.sponge("shadow_strength"), Double.class);
+
     /**
      * The shooter of a {@link Projectile}.
      */
@@ -3132,6 +3152,11 @@ public final class Keys {
      */
     public static final Key<Value<Integer>> VIEW_DISTANCE = Keys.key(ResourceKey.sponge("view_distance"), Integer.class);
 
+    /**
+     * The view range of a {@link DisplayEntity}
+     */
+    public static final Key<Value<Double>> VIEW_RANGE = Keys.key(ResourceKey.sponge("view_range"), Double.class);
+
     /**
      * The type of a {@link Villager} or {@link ZombieVillager}.
      */

src/main/java/org/spongepowered/api/entity/display/DisplayEntity.java

@@ -26,14 +26,42 @@
 
 import org.spongepowered.api.data.Keys;
 import org.spongepowered.api.entity.Entity;
+import org.spongepowered.api.util.Ticks;
+import org.spongepowered.api.util.Transform;
 
 import java.util.Optional;
 
 public interface DisplayEntity extends Entity {
 
-    // TODO rotation/transformation?
+    /**
+     * Returns the transform.
+     * <p>
+     * Supports interpolation.
+     * </p>
+     *
+     * @return the transform
+     */
+    default Transform transform() {
+        return this.require(Keys.TRANSFORM);
+    }
 
-    // TODO interpolation? textopacity/backgroundcolor
+    /**
+     * Returns the duration of the interpolation
+     *
+     * @return the duration of the interpolation
+     */
+    default Ticks interpolationDuration() {
+        return this.require(Keys.INTERPOLATION_DURATION);
+    }
+
+    /**
+     * Returns the delay to the start of the interpolation
+     *
+     * @return the delay to the start of the interpolation
+     */
+    default Ticks interpolationDelay() {
+        return this.require(Keys.INTERPOLATION_DELAY);
+    }
 
     default BillboardType billboardType() {
         return this.require(Keys.BILLBOARD_TYPE);
@@ -57,10 +85,36 @@ default Optional<Integer> blockLight() {
         return this.get(Keys.BLOCK_LIGHT);
     }
 
-    // TODO view_range float/double
 
-    // TODO shadow radius float/double 0=noshadow
-    // TODO shadow strength float/double 1=default
+    /**
+     * Returns the shadow radius.
+     *
+     * @return the shadow radius.
+     */
+    default Double shadowRadius() {
+        return this.require(Keys.SHADOW_RADIUS);
+    }
+
+    /**
+     * Returns the shadow strength or darkness.
+     * <p>Vanilla defaults to 1</p>
+     *
+     * @return the shadow strength.
+     */
+    default Double shadowStrength() {
+        return this.require(Keys.SHADOW_STRENGTH);
+    }
+
+
+    /**
+     * Returns the range at which the display entity is rendered.
+     *
+     * @return the view range
+     */
+    default Double viewRange() {
+        return this.require(Keys.VIEW_RANGE);
+    }
+
     // TODO bounding box (maybe BASE_SIZE if this is not smth. else in the entity)
     // TODO glow_color_override -1 = use team color