80 lines
3.4 KiB
GDScript
80 lines
3.4 KiB
GDScript
extends Node2D
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@export var shield_radius := 50.0
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var current_shields := 100.0
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var max_shields := 100.0
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var _hit_flash_timer := 0.0
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var _hits: Array[Dictionary] = []
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var _time := 0.0
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func _ready() -> void:
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var owner := get_parent()
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if owner is CharacterBody2D and owner.has_method("take_damage"):
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owner.add_to_group("shielded_combatants")
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func _process(delta: float) -> void:
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_time += delta
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_hit_flash_timer = maxf(0.0,_hit_flash_timer-delta)
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for i in range(_hits.size()-1,-1,-1):
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_hits[i].age += delta
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if _hits[i].age >= 0.42: _hits.remove_at(i)
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visible = current_shields > 0.0 or not _hits.is_empty()
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var owner := get_parent()
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if owner.has_method("is_mini_boosting") and bool(owner.get("_is_destroyed")): visible = false
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if visible: queue_redraw()
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func set_shield_values(current: float, maximum: float) -> void:
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current_shields = current
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max_shields = maxf(1.0,maximum)
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visible = current_shields > 0.0 or not _hits.is_empty()
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queue_redraw()
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func flash_hit(world_point := Vector2.INF, damage_type := DamageTypes.Type.ENERGY, strength := 1.0) -> void:
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_hit_flash_timer = 0.22
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var direction := Vector2.UP if not world_point.is_finite() else to_local(world_point).normalized()
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if direction.length_squared()<0.01: direction = Vector2.UP
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if _hits.size()>=6: _hits.pop_front()
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_hits.append({"angle":direction.angle(),"age":0.0,"kind":damage_type,"strength":clampf(strength,0.4,1.4)})
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visible = true
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queue_redraw()
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func _draw() -> void:
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var ratio := clampf(current_shields/max_shields,0.0,1.0)
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if current_shields>0:
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var pulse := 0.88+0.12*sin(_time*1.8)
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var intensity := (0.35+ratio*0.65)*pulse
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var tint := Color("61d8ff").lerp(Color("a4edff"),ratio*0.35)
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# A soft Fresnel-like rim: transparent centre, luminous outer shell.
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draw_circle(Vector2.ZERO,shield_radius,Color(tint,0.012*intensity))
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for layer in range(5,0,-1):
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draw_arc(Vector2.ZERO,shield_radius,0,TAU,96,Color(tint,0.012*intensity),float(layer)*2.6,true)
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for band in 4:
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draw_arc(Vector2.ZERO,shield_radius-1.5-band*1.6,0,TAU,96,Color(tint,0.018*intensity*(1.0-band/4.0)),2.0,true)
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draw_arc(Vector2.ZERO,shield_radius,0,TAU,96,Color(tint,0.34*intensity),1.1,true)
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# Slow highlights travel along the field without shifting its collision edge.
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for index in 3:
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var angle := _time*0.16+TAU*index/3.0
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for segment in 8:
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var start := angle+segment*0.065
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var alpha := sin((segment+0.5)/8.0*PI)*0.22*intensity
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draw_arc(Vector2.ZERO,shield_radius-0.6,start,start+0.07,5,Color("d0f6ff",alpha),1.6,true)
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_draw_impacts()
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func _draw_impacts() -> void:
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for hit in _hits:
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var t := float(hit.age)/0.42
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var fade := (1.0-t)*(1.0-t)*float(hit.strength)
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var color: Color = [Color("ffd18b"),Color("75dfff"),Color("a1f475")][int(hit.kind)]
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var angle: float = hit.angle
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var spread := 0.12+t*1.2
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var radius := shield_radius+t*2.0
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for layer in 3:
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draw_arc(Vector2.ZERO,radius-float(layer)*1.5,angle-spread,angle+spread,28,Color(color,fade*(0.6 if layer==0 else 0.13)),1.4 if layer==0 else 3.0,true)
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var contact := Vector2.RIGHT.rotated(angle)*shield_radius
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draw_circle(contact,8.0*(1.0-t),Color(color,fade*0.12))
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for ring in 2:
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draw_arc(contact,3.0+t*(17.0+ring*8.0),angle+PI*0.5,angle+PI*1.5,22,Color(color,fade*(0.5 if ring==0 else 0.17)),1.1,true)
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if t<0.35:
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var core := (1.0-t/0.35)*float(hit.strength)
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draw_circle(contact,5*core,Color(color,core*0.22))
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draw_circle(contact,1.8*core,Color(color.lightened(0.7),core))
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