drop

src/interaction/objects.rs

@@ -1,3 +1,80 @@
 use bevy::prelude::*;
+use bevy_rapier3d::prelude::ColliderDisabled;
+
+use crate::{
+    player::{Player, PlayerAction, toolbar::Item},
+    util::single_mut,
+};
+
+use super::{Interact, ui::InteractionOpportunity};
 
 pub fn plugin(_app: &mut App) {}
+
+pub fn handle_pick_up(
+    mut commands: Commands,
+    // current action
+    mut action: Query<(&PlayerAction, &mut Item), With<Player>>,
+    mut vis_query: Query<&mut Visibility>,
+    children: Query<&mut Children>,
+
+    // current interactable
+    mut interaction_opportunity: ResMut<InteractionOpportunity>,
+) {
+    let (action, mut item) = single_mut!(action);
+    if *action == PlayerAction::PickUp {
+        // take out the interaction, because we are picking it up
+        let Some(target) = interaction_opportunity.0.take() else {
+            return;
+        };
+        let replaced = item.set_item(target);
+        if let Ok(mut vis) = vis_query.get_mut(target) {
+            *vis = Visibility::Hidden;
+        }
+        if let Ok(colliders) = children.get(target) {
+            for &collider in colliders {
+                commands.entity(collider).insert(ColliderDisabled);
+            }
+        }
+        if let Some(dropped) = replaced {
+            if let Ok(mut vis) = vis_query.get_mut(dropped) {
+                *vis = Visibility::Visible;
+            }
+            if let Ok(colliders) = children.get(dropped) {
+                for &collider in colliders {
+                    commands.entity(collider).remove::<ColliderDisabled>();
+                }
+            }
+        }
+    }
+}
+
+pub fn handle_drop(
+    mut commands: Commands,
+    // current action
+    mut action: Query<(&PlayerAction, &Transform, &mut Item), With<Player>>,
+    mut vis_query: Query<&mut Visibility>,
+    mut item_transform: Query<&mut Transform, With<Interact>>,
+    children: Query<&mut Children>,
+) {
+    // let (action, transform, mut item) = single_mut!(action);
+    // if *action == PlayerAction::Drop {
+    //     if let Ok(mut vis) = vis_query.get_mut(target) {
+    //         *vis = Visibility::Hidden;
+    //     }
+    //     if let Ok(colliders) = children.get(target) {
+    //         for &collider in colliders {
+    //             commands.entity(collider).insert(ColliderDisabled);
+    //         }
+    //     }
+    //     if let Some(dropped) = replaced {
+    //         if let Ok(mut vis) = vis_query.get_mut(dropped) {
+    //             *vis = Visibility::Visible;
+    //         }
+    //         if let Ok(colliders) = children.get(dropped) {
+    //             for &collider in colliders {
+    //                 commands.entity(collider).remove::<ColliderDisabled>();
+    //             }
+    //         }
+    //     }
+    // }
+}