first_person_player: finished first pass of movement and input

assets/system/first_person_player.modifier.api.wren

@@ -29,7 +29,16 @@ class Modifier {
   editor_tick(delta: Num) : None {}
 
   get(entity: Entity) : Data { Mod.get(entity, Modifier.id) }
-  each(fn: Fn) {
+
+  list() : List {
+    var list = []
+    each {|entity: Entity, unused|
+      list.add(entity)
+    }
+    return list
+  }
+
+  each(fn: Fn) : None {
     var count = attached_count
     for(idx in 0 ... count) {
       var inst = Block.get_at(_block, idx)
@@ -38,7 +47,8 @@ class Modifier {
       fn.call(entity, data)
     }
   }
-  each(start: Num, count: Num, fn: Fn) {
+
+  each(start: Num, count: Num, fn: Fn) : None {
     for(idx in start ... start + count) {
       var inst = Block.get_at(_block, idx)
       var data = Block.instance(_block, inst)
@@ -58,6 +68,7 @@ class API {
   static system(entity: Entity) : System { World.get_system(Entity.get_world(entity), Modifier.id) }
   static count(world: World) : Num { system_in(world).attached_count }
   static each(world: World, fn: Fn) : System { system_in(world).each(fn) }
+  static with(world: World) : List { system_in(world).list() }
   static get : APIGet { APIGetter }
   static set : APISet { APISetter }
   static connect : APIWireConnect { APIWireConnects }
@@ -65,6 +76,24 @@ class API {
 }
 
 class Fields {
+  static acceleration : String { "acceleration" }
+  static decelleration : String { "decelleration" }
+  static speed_run : String { "speed_run" }
+  static speed_walk : String { "speed_walk" }
+  static ground_check_dist : String { "ground_check_dist" }
+  static jump_impulse : String { "jump_impulse" }
+  static jump_grace_time : String { "jump_grace_time" }
+  static event_forward : String { "event_forward" }
+  static event_backward : String { "event_backward" }
+  static event_strafe_left : String { "event_strafe_left" }
+  static event_strafe_right : String { "event_strafe_right" }
+  static event_sprint : String { "event_sprint" }
+  static event_jump : String { "event_jump" }
+  static input_target : String { "input_target" }
+  static target_speed : String { "target_speed" }
+  static time_since_grounded : String { "time_since_grounded" }
+  static is_grounded : String { "is_grounded" }
+  static movement_active : String { "movement_active" }
 }
 
 import "luxe: world/states" for AState, States, Op
@@ -84,10 +113,46 @@ class APIWireConnect {
 
 class APIGet {
   construct new() {}
+  acceleration(entity: Entity) : Num { Modifier.get(entity).acceleration }
+  decelleration(entity: Entity) : Num { Modifier.get(entity).decelleration }
+  speed_run(entity: Entity) : Num { Modifier.get(entity).speed_run }
+  speed_walk(entity: Entity) : Num { Modifier.get(entity).speed_walk }
+  ground_check_dist(entity: Entity) : Num { Modifier.get(entity).ground_check_dist }
+  jump_impulse(entity: Entity) : Num { Modifier.get(entity).jump_impulse }
+  jump_grace_time(entity: Entity) : Num { Modifier.get(entity).jump_grace_time }
+  event_forward(entity: Entity) : String { Modifier.get(entity).event_forward }
+  event_backward(entity: Entity) : String { Modifier.get(entity).event_backward }
+  event_strafe_left(entity: Entity) : String { Modifier.get(entity).event_strafe_left }
+  event_strafe_right(entity: Entity) : String { Modifier.get(entity).event_strafe_right }
+  event_sprint(entity: Entity) : String { Modifier.get(entity).event_sprint }
+  event_jump(entity: Entity) : String { Modifier.get(entity).event_jump }
+  input_target(entity: Entity) : Float3 { Modifier.get(entity).input_target }
+  target_speed(entity: Entity) : Num { Modifier.get(entity).target_speed }
+  time_since_grounded(entity: Entity) : Num { Modifier.get(entity).time_since_grounded }
+  is_grounded(entity: Entity) : Bool { Modifier.get(entity).is_grounded }
+  movement_active(entity: Entity) : Bool { Modifier.get(entity).movement_active }
 }
 
 class APISet {
   construct new() {}
+  acceleration(entity: Entity, value: Num) { Modifier.get(entity).acceleration = value }
+  decelleration(entity: Entity, value: Num) { Modifier.get(entity).decelleration = value }
+  speed_run(entity: Entity, value: Num) { Modifier.get(entity).speed_run = value }
+  speed_walk(entity: Entity, value: Num) { Modifier.get(entity).speed_walk = value }
+  ground_check_dist(entity: Entity, value: Num) { Modifier.get(entity).ground_check_dist = value }
+  jump_impulse(entity: Entity, value: Num) { Modifier.get(entity).jump_impulse = value }
+  jump_grace_time(entity: Entity, value: Num) { Modifier.get(entity).jump_grace_time = value }
+  event_forward(entity: Entity, value: String) { Modifier.get(entity).event_forward = value }
+  event_backward(entity: Entity, value: String) { Modifier.get(entity).event_backward = value }
+  event_strafe_left(entity: Entity, value: String) { Modifier.get(entity).event_strafe_left = value }
+  event_strafe_right(entity: Entity, value: String) { Modifier.get(entity).event_strafe_right = value }
+  event_sprint(entity: Entity, value: String) { Modifier.get(entity).event_sprint = value }
+  event_jump(entity: Entity, value: String) { Modifier.get(entity).event_jump = value }
+  input_target(entity: Entity, value: Float3) { Modifier.get(entity).input_target = value }
+  target_speed(entity: Entity, value: Num) { Modifier.get(entity).target_speed = value }
+  time_since_grounded(entity: Entity, value: Num) { Modifier.get(entity).time_since_grounded = value }
+  is_grounded(entity: Entity, value: Bool) { Modifier.get(entity).is_grounded = value }
+  movement_active(entity: Entity, value: Bool) { Modifier.get(entity).movement_active = value }
 }
 
 var APIGetter = APIGet.new()