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extends Spatial
var _path : Node
var _enemies : Node
var _fx_holder : Node
var _projectiles_holder : Node
var _enemies_holder : Node
var load_turrets : Node
var pivot : Spatial
var base : Spatial
var gun : Spatial
var _shooting_point : Vector3
var _normal : Vector3
var aim_mode = "first"
var _target = null
var cooldown_timer = 0
var projectile : PackedScene
var ray : PackedScene
var info : Dictionary
var info_mod : Dictionary
var modules = []
func dict_get (d, keys : Array):
var val = d
if keys != [] and d != null:
var key = keys.pop_front()
val = dict_get(d.get(key, null), keys)
return val
func complete (prev, chain, mods):
for k in prev:
if prev[k] is Dictionary:
complete(prev[k], chain + [k], mods)
else:
for m in mods:
var mod = load_turrets.modules[m]
if not mod.has("add"): continue
var children = dict_get(mod, ["add"] + chain)
if children == null: continue
for h in children:
if children[h] is int or children[h] is float:
if not prev.has(h):
prev[h] = 0
break
func traverse (prev, next, chain, mods):
for k in prev:
if prev[k] is Dictionary:
if not next.has(k): next[k] = {}
traverse(prev[k], next[k], chain + [k], mods)
else:
var add = 0
var mul = 0
for m in mods:
var mod = load_turrets.modules[m]
var x = dict_get(mod, ["add"] + chain + [k])
if x is int or x is float: add += x
var y = dict_get(mod, ["mul"] + chain + [k])
if y is int or y is float: mul += y
if prev[k] is int or prev[k] is float:
next[k] = prev[k] + add
next[k] = next[k] * (1+mul)
else: next[k] = prev[k]
func make_info_mod (mods):
var modded = {}
complete(info, [], mods)
traverse(info, modded, [], mods)
return modded
func _ready():
var root = get_tree().root.get_node("world")
_path = root.get_node("path")
_enemies = root.get_node("enemies")
_projectiles_holder = root.get_node("projectiles")
_enemies_holder = root.find_node("enemies")
_fx_holder = root.find_node("fx")
load_turrets = root.get_node("saveload").get_node("load_turrets")
if !load_turrets.loaded: yield(load_turrets, "done_loading")
projectile = load("res://scenes/projectiles/bullet.tscn")
ray = load("res://scenes/projectiles/ray.tscn")
func refresh_normal ():
_normal = transform.basis * Vector3.UP
_shooting_point = transform.origin + 0.25 * _normal
func refresh_model():
pivot = get_node("model").find_node("pivot*", true, true)
base = pivot.find_node("base*", true, true)
if base != null:
gun = base.find_node("gun*", true, true)
func refresh_info(tinfo):
self.info = tinfo
info_mod = make_info_mod(modules)
func filter_in_range(set):
var filtered = []
for target in set:
var node = _enemies.node_from_id(target)
var dist = (node.transform.origin - _shooting_point).length_squared()
if dist < info_mod.range*info_mod.range:
filtered += [target]
return filtered
func filter_visible(set):
var space: PhysicsDirectSpaceState = get_world().direct_space_state
var from = _shooting_point
var mask = 0b1101
var filtered = []
for target in set:
var node = _enemies.node_from_id(target)
var to = node.transform.origin
var result = space.intersect_ray(from, to, _path.nodes, mask)
if result.size() > 0:
var hit = result.collider.get_parent()
if hit == node:
filtered += [ target ]
return filtered
func targeting (set, aim):
var pick = set[0]
var pick_val = value(pick, aim)
for target in set:
var enemy = _enemies.enemies[target]
var d = value(target, aim)
if d > pick_val:
pick_val = d
pick = target
return pick
func value(a, aim):
var enemy = _enemies.enemies[a]
match aim:
"first": return enemy.cur+enemy.rel
"last": return - (enemy.cur+enemy.rel)
"strongest": return enemy.hp
"weakest": return -enemy.hp
"closest":
var node = _enemies.node_from_id(a)
return - _shooting_point.distance_squared_to(node.transform.origin)
"furthest":
var node = _enemies.node_from_id(a)
return _shooting_point.distance_squared_to(node.transform.origin)
"least turning":
var node = _enemies.node_from_id(a)
return node.transform.basis.z.signed_angle_to(
gun.transform.basis.z, Vector3.UP)
"most turning":
var node = _enemies.node_from_id(a)
return -node.transform.basis.z.signed_angle_to(
gun.transform.basis.z, Vector3.UP)
func get_target():
var ids = []
for id in _enemies.enemies: ids.append(id)
var set = ids
set = filter_in_range(set)
set = filter_visible(set)
if set.size() > 0:
return targeting(set, aim_mode)
else: return null
func _physics_process(delta):
if !info_mod.has("projectile"): return
if !_enemies.enemies.has(_target):
_target = null
else:
if _enemies.enemies[_target].hp <= 0:
_target = null
if _target == null:
_target = get_target()
_target = get_target()
var turn_speed = info_mod.get("turn_speed", 0)
if _target != null:
var enemy = _enemies.node_from_id(_target)
var direction = (enemy.transform.origin - _shooting_point).normalized()
var proj_normal = direction - _normal.dot(direction) * _normal
var base_rot : Quat = Transform().looking_at(proj_normal, _normal).basis.get_rotation_quat()
var perp = -proj_normal.cross(_normal).normalized()
var proj_forward = direction - perp.dot(direction) * perp
var gun_rot : Quat = Transform().looking_at(proj_forward, perp).basis.get_rotation_quat()
gun_rot = Quat(direction, PI/2) * gun_rot
gun_rot = gun_rot.normalized()
gun_rot = base_rot.inverse() * gun_rot
var base_basis = base.global_transform.basis.get_rotation_quat()
var base_angle = base_basis.angle_to(base_rot)
if base_angle > 0.01:
var base_amt = (turn_speed * delta) / base_angle
base_amt = min(1, base_amt)
base.global_transform.basis = Basis(base_basis.slerp(Basis(base_rot), base_amt))
var gun_basis = gun.transform.basis.get_rotation_quat()
var gun_angle = gun_basis.angle_to(gun_rot)
if gun_angle > 0.01:
var gun_amt = (turn_speed * delta) / gun_angle
gun_amt = min(1, gun_amt)
gun.transform.basis = Basis(gun_basis.slerp(Basis(gun_rot), gun_amt))
cooldown_timer += delta
if cooldown_timer > info_mod.cooldown:
cooldown_timer -= info_mod.cooldown
shoot()
func spread (amt : int) -> Array:
var dirs = []
var width : int = ceil(sqrt(amt))
for i in amt:
var dir = gun.global_transform.basis
var x = floor(i%width)-width/2+(width+1)%2*0.5
var y = floor(i/width)-floor(sqrt(amt)-1)/2
var spread = info_mod.projectile.spread
dir = dir.rotated(_normal, deg2rad(x*spread))
dir = dir.rotated(_normal.cross(dir.z).normalized(), deg2rad(y*spread))
dirs.append(dir)
return dirs
func shoot ():
if info_mod.projectile.get("amount", 1) > 1:
for dir in spread(info_mod.projectile.amount):
shoot_switch(dir)
else:
shoot_switch(gun.global_transform.basis)
func shoot_switch (dir : Basis):
match info_mod.projectile.type:
"bullet": shoot_bullet(dir)
"ray": shoot_ray(dir)
"bounce": shoot_bullet(dir, true)
func shoot_bullet (dir : Basis, bounce = false):
var instance = projectile.instance()
_projectiles_holder.add_child(instance)
instance.transform.basis = dir
instance.transform.origin = _shooting_point - dir.z*0.3;
instance.shooter = self
instance.damage = info_mod.projectile.get("damage", 0)
instance.speed = info_mod.projectile.get("speed", 0)
instance.bounce = bounce
instance.aoe = info_mod.projectile.get("area_of_effect", 0)
instance.slowness_effect = info_mod.projectile.get("slowness_effect", 0)
instance.slowness_time = info_mod.projectile.get("slowness_time", 0)
instance.time_life = info_mod.projectile.get("lifetime", 3)
func shoot_ray (dir : Basis):
var space: PhysicsDirectSpaceState = get_world().direct_space_state
var from = _shooting_point
var to = _shooting_point - dir.z*info_mod.range
var mask = 0b1101
var result = space.intersect_ray(from, to, _path.nodes, mask)
if result.size() > 0:
var parent = result.collider.get_parent()
var groups = parent.get_groups()
if "enemies" in groups:
var dam = info_mod.projectile.get("damage", 0)
var eff = info_mod.projectile.get("slowness_effect", 0)
var tim = info_mod.projectile.get("slowness_time", 0)
_enemies_holder.damage(parent.name, dam, eff, tim)
var distance = result.position.distance_to(from)
var instance = ray.instance()
_fx_holder.add_child(instance)
instance.transform.origin = _shooting_point - dir.z*0.3;
instance.transform.basis = dir
instance.transform.basis.z *= distance
instance.time_life = 0.05
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