From 3f79054ed7b61237c8ec78345f82b476f2949a0f Mon Sep 17 00:00:00 2001
From: Nixon <voxell.technologies@gmail.com>
Date: Wed, 24 Aug 2022 19:45:13 +0800
Subject: [PATCH] add change character system to play stageasdasd

---
 src/game.rs | 52 ++++++++++++++++++++++++++++++++++------------------
 1 file changed, 34 insertions(+), 18 deletions(-)

diff --git a/src/game.rs b/src/game.rs
index 8e9f5da..6630b71 100644
--- a/src/game.rs
+++ b/src/game.rs
@@ -34,13 +34,13 @@ impl Plugin for GamePlugin {
 			.add_system_set(
 				SystemSet::on_update(AppState::Game)
 					.with_system(crate::levels::post_setup_level)
+					.with_system(change_character_system)
 					.with_system(player_movement_system)
 					.with_system(move_camera)
 					.with_system(character_particle_effect_system),
-			)
-			.add_system_set(
-				SystemSet::on_update(AppState::Win)
-					.with_system(change_character_system)
+				)
+				.add_system_set(
+					SystemSet::on_update(AppState::Win)
 					.with_system(player_movement_system)
 					.with_system(move_camera)
 					.with_system(character_particle_effect_system),
@@ -186,14 +186,16 @@ fn collision_event_system(
 	character_meshes: Res<CharacterMeshes>,
 	mut materials: ResMut<Assets<ColorMaterial>>,
 	mut collision_events: EventReader<CollisionEvent>,
-	character_query: Query<(&CharacterColor, &Transform)>,
+	character_query: Query<(&CharacterColor, &Transform, Option<&Player>)>,
 	mut app_state: ResMut<State<AppState>>,
 	audio: Res<crossbeam_channel::Sender<AudioMsg>>,
 ) {
 	for collision_event in collision_events.iter() {
 		if let CollisionEvent::Started(e1, e2, flags) = collision_event {
 			if flags.is_empty() {
-				if let (Ok((c1_color, c1_transform)), Ok((c2_color, _c2_transform))) =
+				if let (
+					Ok((c1_color, c1_transform, c1_player)),
+					Ok((c2_color, c2_transform, c2_player))) =
 					(character_query.get(*e1), character_query.get(*e2))
 				{
 					// TODO completely remove particles
@@ -210,15 +212,28 @@ fn collision_event_system(
 						app_state.replace(AppState::Win).ok();
 					}
 
-					spawn_character(
-						&mut commands,
-						&character_meshes,
-						&mut materials,
-						&audio,
-						*c1_transform,
-						new_color.into(),
-						true,
-					);
+					// position character based on current player location
+					if let Some(_player) = c1_player {
+						spawn_character(
+							&mut commands,
+							&character_meshes,
+							&mut materials,
+							&audio,
+							*c1_transform,
+							new_color.into(),
+							true,
+						);
+					} else if let Some(_player) = c2_player {
+						spawn_character(
+							&mut commands,
+							&character_meshes,
+							&mut materials,
+							&audio,
+							*c2_transform,
+							new_color.into(),
+							true,
+						);
+					}
 				}
 			}
 		}
@@ -229,7 +244,7 @@ fn change_character_system(
 	mut commands: Commands,
 
 	keyboard_input: Res<Input<KeyCode>>,
-	characters: Query<(Entity, &Transform, &CharacterColor, Option<&Player>)>,
+	characters: Query<(Entity, &CharacterColor, Option<&Player>)>,
 	audio: Res<crossbeam_channel::Sender<AudioMsg>>,
 ) {
 	if !keyboard_input.just_pressed(KeyCode::Tab) { return; }
@@ -238,7 +253,7 @@ fn change_character_system(
     let mut player_count: usize = 0;
 
 	// find player idx
-	for (_entity, _transform, _color, player) in characters.iter() {
+	for (_entity, _color, player) in characters.iter() {
 		if let Some(_player) = player {
 			player_idx = player_count;
 		}
@@ -250,7 +265,7 @@ fn change_character_system(
 	player_count = 0;
 
 	// exchange `Player` component from old `player_idx` to new `next_player_idx`
-	for (entity, _transform, color, _player) in characters.iter() {
+	for (entity, color, _player) in characters.iter() {
 		if player_count == player_idx {
 			commands.entity(entity).remove::<Player>();
 		}
@@ -260,6 +275,7 @@ fn change_character_system(
 			audio
 				.send(AudioMsg::Color([color.0.r(), color.0.g(), color.0.b()]))
 				.ok();
+            audio.send(AudioMsg::Jump).ok();
 		}
 
 		player_count += 1;