added files.

src/main/java/me/konsolas/aac/movement/PlayerPose.java

@@ -0,0 +1,49 @@
+package me.konsolas.aac.movement;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.function.Function;
+import me.konsolas.aac.protocol.ProtocolVersion;
+import me.konsolas.aac.util.math.AxisAlignedBoundingBox;
+import org.bukkit.util.Vector;
+
+public enum PlayerPose {
+
+    STANDING(result -> PlayerDimensions.STANDING, result -> 1.62F), SNEAKING(result -> {
+        ProtocolVersion version = ProtocolVersion.V1_14;
+        if (result.isAtLeast(version)) {
+            return PlayerDimensions.SNEAKING;
+        } else {
+            ProtocolVersion version2 = ProtocolVersion.V1_9;
+            return result.isAtLeast(version2) ? PlayerDimensions.SNEAKING_LEGACY : PlayerDimensions.STANDING;
+        }
+    }, result -> {
+        ProtocolVersion version = ProtocolVersion.V1_14;
+        return result.isAtLeast(version) ? 1.27F : 1.54F;
+    }), FALL_FLYING(result -> PlayerDimensions.SWIMMING, result -> 0.4F), SWIMMING(result -> PlayerDimensions.SWIMMING, result -> 0.4F);
+
+    public static List<PlayerPose> POSES = Collections.unmodifiableList(Arrays.asList(values()));
+
+    private final Function<ProtocolVersion, EntityDimensions> dimensionsFunction;
+
+    private final Function<ProtocolVersion, Float> eyeHeightFunction;
+
+    private PlayerPose(Function<ProtocolVersion, EntityDimensions> dimensionsFunction, Function<ProtocolVersion, Float> eyeHeightFunction) {
+        this.dimensionsFunction = dimensionsFunction;
+        this.eyeHeightFunction = eyeHeightFunction;
+    }
+
+    public EntityDimensions findEntityDimensions(ProtocolVersion version) {
+        return (EntityDimensions) this.dimensionsFunction.apply(version);
+    }
+
+    public float calculateValue(ProtocolVersion version) {
+        return (Float) this.eyeHeightFunction.apply(version);
+    }
+
+    public boolean checkPlayerPose(Vector vector, MovementEnvironment movementEnvironment) {
+        AxisAlignedBoundingBox box = new AxisAlignedBoundingBox(vector, this.findEntityDimensions(movementEnvironment.getProtocolVersion()));
+        return movementEnvironment.collides(box);
+    }
+}