diff --git a/raws/props.json b/raws/props.json
index d2519da..0c48291 100644
--- a/raws/props.json
+++ b/raws/props.json
@@ -9,7 +9,8 @@
         "id": "prop_altar",
         "name": "altar",
         "renderable": { "glyph": "_", "fg": "#FFFFFF", "bg": "#000000", "order": 2 },
-        "flags": []
+        "flags": ["ENTRY_TRIGGER"],
+        "effects": { "heal": "8d8" }
     },
     {
         "id": "prop_keg",
diff --git a/src/ai/visible_ai_system.rs b/src/ai/visible_ai_system.rs
index 09c0972..3a15b25 100644
--- a/src/ai/visible_ai_system.rs
+++ b/src/ai/visible_ai_system.rs
@@ -2,6 +2,7 @@ use crate::{
     raws::Reaction, Chasing, Faction, HasAncestry, Map, Mind, Position, TakingTurn, Telepath, Viewshed,
     WantsToApproach, WantsToFlee,
 };
+use rltk::prelude::*;
 use specs::prelude::*;
 use std::collections::HashSet;
 
diff --git a/src/effects/hunger.rs b/src/effects/hunger.rs
index f0c6b16..db1e191 100644
--- a/src/effects/hunger.rs
+++ b/src/effects/hunger.rs
@@ -2,8 +2,8 @@ use super::{EffectSpawner, EffectType};
 use crate::{HungerClock, BUC};
 use specs::prelude::*;
 
-pub fn restore_food(ecs: &mut World, effect: &EffectSpawner, target: Entity) {
-    if let EffectType::RestoreNutrition { amount } = &effect.effect_type {
+pub fn modify_nutrition(ecs: &mut World, effect: &EffectSpawner, target: Entity) {
+    if let EffectType::ModifyNutrition { amount } = &effect.effect_type {
         if let Some(hc) = ecs.write_storage::<HungerClock>().get_mut(target) {
             hc.duration += amount;
         }
diff --git a/src/effects/mod.rs b/src/effects/mod.rs
index 154047f..a1b5bc9 100644
--- a/src/effects/mod.rs
+++ b/src/effects/mod.rs
@@ -29,7 +29,7 @@ pub enum EffectType {
     Particle { glyph: FontCharType, fg: RGB, bg: RGB, lifespan: f32, delay: f32 },
     EntityDeath,
     ItemUse { item: Entity },
-    RestoreNutrition { amount: i32 },
+    ModifyNutrition { amount: i32 },
     TriggerFire { trigger: Entity },
 }
 
@@ -116,7 +116,7 @@ fn tile_effect_hits_entities(effect: &EffectType) -> bool {
     match effect {
         EffectType::Damage { .. } => true,
         EffectType::Healing { .. } => true,
-        EffectType::RestoreNutrition { .. } => true,
+        EffectType::ModifyNutrition { .. } => true,
         EffectType::Confusion { .. } => true,
         _ => false,
     }
@@ -139,7 +139,7 @@ fn affect_entity(ecs: &mut World, effect: &EffectSpawner, target: Entity) {
             }
         }
         EffectType::EntityDeath => damage::entity_death(ecs, effect, target),
-        EffectType::RestoreNutrition { .. } => hunger::restore_food(ecs, effect, target),
+        EffectType::ModifyNutrition { .. } => hunger::modify_nutrition(ecs, effect, target),
         _ => {}
     }
 }
diff --git a/src/effects/triggers.rs b/src/effects/triggers.rs
index d39ed57..434de78 100644
--- a/src/effects/triggers.rs
+++ b/src/effects/triggers.rs
@@ -87,7 +87,7 @@ fn handle_restore_nutrition(
             BUC::Uncursed => 400,
             BUC::Cursed => 200,
         };
-        add_effect(event.source, EffectType::RestoreNutrition { amount }, event.target.clone());
+        add_effect(event.source, EffectType::ModifyNutrition { amount }, event.target.clone());
         logger = logger
             .append("You eat the")
             .colour(item_colour_ecs(ecs, event.entity))
diff --git a/src/player.rs b/src/player.rs
index 8b01868..21da5d7 100644
--- a/src/player.rs
+++ b/src/player.rs
@@ -309,9 +309,12 @@ pub fn try_move_player(delta_x: i32, delta_y: i32, ecs: &mut World) -> RunState
         result = crate::spatial::for_each_tile_content_with_runstate(destination_idx, |potential_target| {
             let mut hostile = true;
             if pools.get(potential_target).is_some() {
+                // We get the reaction of the target to this entity --
+                // i.e. in reverse to usual. We want to know if the target
+                //      is hostile to us. If it isn't, we can swap places.
                 let result = crate::raws::get_reactions(
-                    entity,
                     potential_target,
+                    entity,
                     &factions,
                     &ancestries,
                     &crate::raws::RAWS.lock().unwrap(),
diff --git a/src/raws/rawmaster.rs b/src/raws/rawmaster.rs
index f14171c..a2ac921 100644
--- a/src/raws/rawmaster.rs
+++ b/src/raws/rawmaster.rs
@@ -45,7 +45,11 @@ macro_rules! apply_flags {
                 "BLOCKS_VISIBILITY" => $eb = $eb.with(BlocksVisibility {}),
                 "ENTRY_TRIGGER" => $eb = $eb.with(EntryTrigger {}),
                 "SINGLE_ACTIVATION" => $eb = $eb.with(SingleActivation {}),
-                "DOOR" => $eb = $eb.with(Door { open: false }),
+                "DOOR" => {
+                    $eb = $eb.with(Door { open: false });
+                    $eb = $eb.with(BlocksVisibility {});
+                    $eb = $eb.with(BlocksTile {});
+                }
                 // RESTORES NUTRITION
                 "FOOD" => $eb = $eb.with(ProvidesNutrition {}),
                 // IS DELETED ON USE