From 6c3db77e9ee9e1d858e05b13eefaa44bc4d1ae74 Mon Sep 17 00:00:00 2001
From: Nolan Darilek <nolan@thewordnerd.info>
Date: Wed, 2 Jun 2021 15:50:38 -0500
Subject: [PATCH] Spawn colliders for blocked tiles.

---
 src/navigation.rs | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/src/navigation.rs b/src/navigation.rs
index 959cd75..b6e0aec 100644
--- a/src/navigation.rs
+++ b/src/navigation.rs
@@ -2,6 +2,7 @@ use std::{collections::HashMap, error::Error, fmt::Debug, hash::Hash, marker::Ph
 
 use bevy::prelude::*;
 use bevy_input_actionmap::InputMap;
+use bevy_rapier2d::prelude::*;
 use bevy_tts::Tts;
 use derive_more::{Deref, DerefMut};
 
@@ -68,6 +69,36 @@ pub struct Collision {
     pub index: usize,
 }
 
+fn add_map_colliders(mut commands: Commands, maps: Query<(Entity, &Map), Added<Map>>) {
+    for (map_entity, map) in maps.iter() {
+        let rigid_body_entity = commands
+            .entity(map_entity)
+            .insert_bundle(RigidBodyBundle {
+                body_type: RigidBodyType::Static,
+                ..Default::default()
+            })
+            .id();
+        for x in 0..map.width() {
+            for y in 0..map.height() {
+                let tile = map.base.at(x, y);
+                if tile.blocks_motion() {
+                    let collider = ColliderBundle {
+                        shape: ColliderShape::cuboid(1., 1.),
+                        ..Default::default()
+                    };
+                    let collider_parent = ColliderParent {
+                        handle: rigid_body_entity.handle(),
+                        pos_wrt_parent: Vec2::new(x as f32 + 0.5, y as f32 + 0.5).into(),
+                    };
+                    commands
+                        .spawn()
+                        .insert_bundle(collider)
+                        .insert(collider_parent);
+                }
+            }
+        }
+    }
+}
 fn movement_controls<S, A: 'static>(
     mut commands: Commands,
     config: Res<NavigationConfig<S, A>>,
@@ -504,6 +535,7 @@ where
             .register_type::<Sprinting>()
             .add_event::<Collision>()
             .insert_resource(PreviousBlocksMotionIndex::default())
+            .add_system(add_map_colliders.system())
             .add_system_to_stage(
                 CoreStage::PostUpdate,
                 blocks_motion_indexing