受击形变shader

render/shader/character.gdshader

@@ -4,7 +4,23 @@ render_mode depth_prepass_alpha,unshaded;
 uniform sampler2D tex : source_color,filter_nearest;
 uniform float flash_white;
 
+uniform vec2 deformation_dir = vec2(1, 0);
+uniform float deformation_rate = 0;
+
+void vertex() {
+	if (length(deformation_dir)>0.0){
+		 vec2 dir_center = VERTEX.xy;
+	    vec2 dir = normalize(deformation_dir.yx);
+	    vec2 dir1 = dir * deformation_rate;
+	    vec2 dir2 = cross(vec3(0, 0, 1), vec3(dir, 0)).xy * deformation_rate;
+	    vec2 offset1 = -dot(dir1, dir_center) * dir1;
+	    vec2 offset2 = dot(dir2, dir_center) * dir2;
+		VERTEX.xy += offset1 + offset2;
+	}
+}
+
 void fragment() {
+	
 	vec4 col = texture(tex, UV);
 	if(col.a<0.5){discard;}
 	if(flash_white>0.0){

scene/character/character.tscn

@@ -6,7 +6,7 @@
 [ext_resource type="Script" path="res://script/character/move.gd" id="4_66r53"]
 [ext_resource type="Texture2D" uid="uid://daqn6aqfp1hva" path="res://resource/animation/character/hero01_long_attack.png" id="4_fcd8a"]
 [ext_resource type="Script" path="res://script/character/view.gd" id="4_vijjv"]
-[ext_resource type="SpriteFrames" uid="uid://dhfqj1dxldqao" path="res://resource/animation/character/hero01_long_skill01.aseprite" id="5_7jbf8"]
+[ext_resource type="SpriteFrames" uid="uid://ce83cuqwgwwi4" path="res://resource/animation/character/hero01_long_attack.aseprite" id="5_m25rr"]
 [ext_resource type="Script" path="res://script/character/skill.gd" id="6_h4xqy"]
 [ext_resource type="AnimationLibrary" uid="uid://croik07a1qko5" path="res://resource/skill_animation_library/animation_library.tres" id="6_pakq5"]
 [ext_resource type="Script" path="res://script/character/battle.gd" id="8_w84sf"]
@@ -19,6 +19,8 @@
 render_priority = 0
 shader = ExtResource("3_ed424")
 shader_parameter/flash_white = null
+shader_parameter/deformation_dir = Vector2(0, 0)
+shader_parameter/deformation_rate = 0.0
 shader_parameter/tex = ExtResource("4_fcd8a")
 
 [node name="Character" type="CharacterBody3D"]
@@ -43,8 +45,8 @@ gi_mode = 0
 double_sided = false
 alpha_cut = 2
 texture_filter = 0
-sprite_frames = ExtResource("5_7jbf8")
-animation = &"long_flash"
+sprite_frames = ExtResource("5_m25rr")
+animation = &"long_attack01"
 script = ExtResource("4_vijjv")
 
 [node name="Move" type="Node3D" parent="."]

script/character/battle.gd

@@ -70,6 +70,9 @@ func settle(hit_info:HitInfo):
 	#闪白
 	character_to.add_buff("flash_white",0.1)
 	
+	#形变
+	character_to.add_buff("deformation",0.1)
+	
 	#卡帧
 	character_from.add_buff("pause",0.1)
 	character_to.add_buff("pause",0.1)

script/character/buff.gd

@@ -73,10 +73,19 @@ func on_end_stagger(rate):status.is_stagger = false
 func on_end_stun(rate):status.is_stun = false
 
 #表现
+func on_second_pause(rate):status.is_pause = true
+func on_end_pause(rate):status.is_pause = false
+
 func on_start_flash_white(rate):status.flash_white_rate = 1
 func on_update_flash_white(rate):status.flash_white_rate = 1 - rate
 func on_end_flash_white(rate):status.flash_white_rate = 0
-func on_second_pause(rate):status.is_pause = true
-func on_end_pause(rate):status.is_pause = false
+
 func on_update_shake_x(rate):status.shake_offset = Vector3((sin(rate * PI * 4) - 0.5)*0.02,0,0);
 func on_end_shake_x(rate):status.shake_offset = Vector3.ZERO
+
+func on_start_deformation(rate):
+	status.deformation_dir=Vector2(status.hit_back_speed,status.hit_up_speed)
+	status.deformation_rate = 1;
+func on_update_deformation(rate):status.deformation_rate = 1 - rate
+func on_end_deformation(rate):status.deformation_rate = 0
+

script/character/status.gd

@@ -20,6 +20,8 @@ class_name Status
 @export var shake_offset : Vector3 #抖动偏移值
 @export var is_pause : bool #是否暂停
 @export var flash_white_rate : float  #闪白比例
+@export var deformation_dir : Vector2  #形变方向
+@export var deformation_rate : float  #形变比例
 
 @export_category("移动状态")
 @export var move_dir : Vector2 #移动方向

script/character/view.gd

@@ -65,8 +65,7 @@ func _process(delta):
 	if status.is_pause:return
 	update_flip()
 	update_trans(false)
-	update_texture()
-	update_flash_white()
+	update_material()
 
 func init(default:SpriteFrames):
 	sprite_frames = default
@@ -130,14 +129,13 @@ func update_view():
 func _on_animation_finished():
 	update_trans(true)
 	
-func update_texture():
+func update_material():
 	var tex = sprite_frames.get_frame_texture(animation,frame)
 	var material = material_override as ShaderMaterial
 	material.set_shader_parameter("tex",tex)
-	
-func update_flash_white():
-	var material = material_override as ShaderMaterial
 	material.set_shader_parameter("flash_white",status.flash_white_rate)
+	material.set_shader_parameter("deformation_dir",status.deformation_dir)
+	material.set_shader_parameter("deformation_rate",status.deformation_rate*0.4)
 
 func clone(target:AnimatedSprite3D):
 	target.sprite_frames = sprite_frames