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Shadow.tscn
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Shadow.tscn
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[gd_scene load_steps=9 format=2]
[ext_resource path="res://assets/Shadow.png" type="Texture" id=1]
[ext_resource path="res://scripts/shadow.gd" type="Script" id=2]
[ext_resource path="res://Geosprite.tscn" type="PackedScene" id=3]
[sub_resource type="RectangleShape2D" id=1]
extents = Vector2( 64, 64 )
[sub_resource type="Shader" id=2]
code = "shader_type canvas_item;
uniform vec2 offset = vec2(0);
uniform float pixels = 40.0;
uniform float fill_time = 1.5;
uniform float time_alive = 0.0;
uniform bool top = false;
uniform bool bot = false;
uniform bool lef = false;
uniform bool rig = false;
uniform float noise_scale = 1;
vec3 mod289_3(vec3 x) {
return x - floor(x * (1.0 / 289.0)) * 289.0;
}
vec4 mod289_4(vec4 x) {
return x - floor(x * (1.0 / 289.0)) * 289.0;
}
vec4 permute(vec4 x) {
return mod289_4(((x * 34.0) + 1.0) * x);
}
vec4 taylorInvSqrt(vec4 r) {
return 2.79284291400159 - 0.85373472095314 * r;
}
float snoise(vec3 v) {
vec2 C = vec2(1.0/6.0, 1.0/3.0) ;
vec4 D = vec4(0.0, 0.5, 1.0, 2.0);
// First corner
vec3 i = floor(v + dot(v, vec3(C.y)) );
vec3 x0 = v - i + dot(i, vec3(C.x)) ;
// Other corners
vec3 g = step(x0.yzx, x0.xyz);
vec3 l = 1.0 - g;
vec3 i1 = min( g.xyz, l.zxy );
vec3 i2 = max( g.xyz, l.zxy );
// x0 = x0 - 0.0 + 0.0 * C.xxx;
// x1 = x0 - i1 + 1.0 * C.xxx;
// x2 = x0 - i2 + 2.0 * C.xxx;
// x3 = x0 - 1.0 + 3.0 * C.xxx;
vec3 x1 = x0 - i1 + vec3(C.x);
vec3 x2 = x0 - i2 + vec3(C.y); // 2.0*C.x = 1/3 = C.y
vec3 x3 = x0 - D.yyy; // -1.0+3.0*C.x = -0.5 = -D.y
// Permutations
i = mod289_3(i);
vec4 p = permute( permute( permute(
i.z + vec4(0.0, i1.z, i2.z, 1.0 ))
+ i.y + vec4(0.0, i1.y, i2.y, 1.0 ))
+ i.x + vec4(0.0, i1.x, i2.x, 1.0 ));
// Gradients: 7x7 points over a square, mapped onto an octahedron.
// The ring size 17*17 = 289 is close to a multiple of 49 (49*6 = 294)
float n_ = 0.142857142857; // 1.0/7.0
vec3 ns = n_ * D.wyz - D.xzx;
vec4 j = p - 49.0 * floor(p * ns.z * ns.z); // mod(p,7*7)
vec4 x_ = floor(j * ns.z);
vec4 y_ = floor(j - 7.0 * x_ ); // mod(j,N)
vec4 x = x_ *ns.x + vec4(ns.y);
vec4 y = y_ *ns.x + vec4(ns.y);
vec4 h = 1.0 - abs(x) - abs(y);
vec4 b0 = vec4( x.xy, y.xy );
vec4 b1 = vec4( x.zw, y.zw );
//vec4 s0 = vec4(lessThan(b0,0.0))*2.0 - 1.0;
//vec4 s1 = vec4(lessThan(b1,0.0))*2.0 - 1.0;
vec4 s0 = floor(b0)*2.0 + 1.0;
vec4 s1 = floor(b1)*2.0 + 1.0;
vec4 sh = -step(h, vec4(0.0));
vec4 a0 = b0.xzyw + s0.xzyw*sh.xxyy ;
vec4 a1 = b1.xzyw + s1.xzyw*sh.zzww ;
vec3 p0 = vec3(a0.xy,h.x);
vec3 p1 = vec3(a0.zw,h.y);
vec3 p2 = vec3(a1.xy,h.z);
vec3 p3 = vec3(a1.zw,h.w);
//Normalise gradients
vec4 norm = taylorInvSqrt(vec4(dot(p0,p0), dot(p1,p1), dot(p2, p2), dot(p3,p3)));
p0 *= norm.x;
p1 *= norm.y;
p2 *= norm.z;
p3 *= norm.w;
// Mix final noise value
vec4 m = max(0.6 - vec4(dot(x0,x0), dot(x1,x1), dot(x2,x2), dot(x3,x3)), vec4(0.0));
m = m * m;
return 22.0 * dot( m*m, vec4( dot(p0,x0), dot(p1,x1), dot(p2,x2), dot(p3,x3) ) );
}
float rand(vec2 co){
return fract(sin(dot(co.xy ,vec2(12.9898,78.233))) * 43758.5453);
}
uniform float amplitude = -8.0;
void vertex() {
VERTEX.y += -8.0 + amplitude * snoise(vec3(UV + offset, TIME / 4.0));
}
void fragment() {
float fake_time = mod(TIME, fill_time);
// float time = TIME - start_time;
COLOR = texture(TEXTURE, UV);
COLOR.a = 0.0;
float source_dist = 10.0;
if (top)
source_dist = distance(UV, vec2(0.5, 0.0));
if (lef)
source_dist = min(distance(UV, vec2(0.0, 0.5)), source_dist);
if (rig)
source_dist = min(distance(UV, vec2(1.0, 0.5)), source_dist);
if (bot)
source_dist = min(distance(UV, vec2(0.5, 1.0)), source_dist);
if (bot && lef)
source_dist = min(distance(UV, vec2(0.0, 1.0)), source_dist);
if (bot && rig)
source_dist = min(distance(UV, vec2(1.0, 1.0)), source_dist);
if (top && lef)
source_dist = min(distance(UV, vec2(0.0, 0.0)), source_dist);
if (top && rig)
source_dist = min(distance(UV, vec2(1.0, 0.0)), source_dist);
if (source_dist > 2.0)
source_dist = distance(UV, vec2(0.5));
float n = snoise(vec3((UV+offset)*noise_scale, TIME / 4.0));
vec3 uv = vec3((UV + offset), TIME / 6.0);
n = snoise(uv - vec3(0.0, 0.0, TIME / 3.0));
n += 0.5 * snoise(uv * 2.0 - vec3(0.0, 0.0, TIME / 2.5));
n += 0.25 * snoise(uv * 4.0 - vec3(0.0, 0.0, TIME / 2.0));
n += 0.125 * snoise(uv * 8.0 - vec3(0.0, 0.0, TIME / 1.8));
float time = time_alive;
COLOR.a = (n / 2.0 + 1.0) * (pow(time / fill_time, 0.3)*2.0 - source_dist);
}"
[sub_resource type="ShaderMaterial" id=3]
resource_local_to_scene = true
shader = SubResource( 2 )
shader_param/offset = Vector2( 0, 0 )
shader_param/pixels = 40.0
shader_param/fill_time = 1.5
shader_param/time_alive = 0.0
shader_param/top = false
shader_param/bot = false
shader_param/lef = false
shader_param/rig = false
shader_param/noise_scale = 1.0
shader_param/amplitude = -8.0
[sub_resource type="Shader" id=4]
code = "shader_type canvas_item;
uniform vec2 offset = vec2(0);
uniform float pixels = 40.0;
uniform float fill_time = 1.5;
uniform float time_alive = 0.0;
uniform bool top = false;
uniform bool bot = false;
uniform bool lef = false;
uniform bool rig = false;
uniform bool lfix = false;
uniform bool rfix = false;
uniform float noise_scale = 1;
vec3 mod289_3(vec3 x) {
return x - floor(x * (1.0 / 289.0)) * 289.0;
}
vec4 mod289_4(vec4 x) {
return x - floor(x * (1.0 / 289.0)) * 289.0;
}
vec4 permute(vec4 x) {
return mod289_4(((x * 34.0) + 1.0) * x);
}
vec4 taylorInvSqrt(vec4 r) {
return 2.79284291400159 - 0.85373472095314 * r;
}
float snoise(vec3 v) {
vec2 C = vec2(1.0/6.0, 1.0/3.0) ;
vec4 D = vec4(0.0, 0.5, 1.0, 2.0);
// First corner
vec3 i = floor(v + dot(v, vec3(C.y)) );
vec3 x0 = v - i + dot(i, vec3(C.x)) ;
// Other corners
vec3 g = step(x0.yzx, x0.xyz);
vec3 l = 1.0 - g;
vec3 i1 = min( g.xyz, l.zxy );
vec3 i2 = max( g.xyz, l.zxy );
// x0 = x0 - 0.0 + 0.0 * C.xxx;
// x1 = x0 - i1 + 1.0 * C.xxx;
// x2 = x0 - i2 + 2.0 * C.xxx;
// x3 = x0 - 1.0 + 3.0 * C.xxx;
vec3 x1 = x0 - i1 + vec3(C.x);
vec3 x2 = x0 - i2 + vec3(C.y); // 2.0*C.x = 1/3 = C.y
vec3 x3 = x0 - D.yyy; // -1.0+3.0*C.x = -0.5 = -D.y
// Permutations
i = mod289_3(i);
vec4 p = permute( permute( permute(
i.z + vec4(0.0, i1.z, i2.z, 1.0 ))
+ i.y + vec4(0.0, i1.y, i2.y, 1.0 ))
+ i.x + vec4(0.0, i1.x, i2.x, 1.0 ));
// Gradients: 7x7 points over a square, mapped onto an octahedron.
// The ring size 17*17 = 289 is close to a multiple of 49 (49*6 = 294)
float n_ = 0.142857142857; // 1.0/7.0
vec3 ns = n_ * D.wyz - D.xzx;
vec4 j = p - 49.0 * floor(p * ns.z * ns.z); // mod(p,7*7)
vec4 x_ = floor(j * ns.z);
vec4 y_ = floor(j - 7.0 * x_ ); // mod(j,N)
vec4 x = x_ *ns.x + vec4(ns.y);
vec4 y = y_ *ns.x + vec4(ns.y);
vec4 h = 1.0 - abs(x) - abs(y);
vec4 b0 = vec4( x.xy, y.xy );
vec4 b1 = vec4( x.zw, y.zw );
//vec4 s0 = vec4(lessThan(b0,0.0))*2.0 - 1.0;
//vec4 s1 = vec4(lessThan(b1,0.0))*2.0 - 1.0;
vec4 s0 = floor(b0)*2.0 + 1.0;
vec4 s1 = floor(b1)*2.0 + 1.0;
vec4 sh = -step(h, vec4(0.0));
vec4 a0 = b0.xzyw + s0.xzyw*sh.xxyy ;
vec4 a1 = b1.xzyw + s1.xzyw*sh.zzww ;
vec3 p0 = vec3(a0.xy,h.x);
vec3 p1 = vec3(a0.zw,h.y);
vec3 p2 = vec3(a1.xy,h.z);
vec3 p3 = vec3(a1.zw,h.w);
//Normalise gradients
vec4 norm = taylorInvSqrt(vec4(dot(p0,p0), dot(p1,p1), dot(p2, p2), dot(p3,p3)));
p0 *= norm.x;
p1 *= norm.y;
p2 *= norm.z;
p3 *= norm.w;
// Mix final noise value
vec4 m = max(0.6 - vec4(dot(x0,x0), dot(x1,x1), dot(x2,x2), dot(x3,x3)), vec4(0.0));
m = m * m;
return 22.0 * dot( m*m, vec4( dot(p0,x0), dot(p1,x1), dot(p2,x2), dot(p3,x3) ) );
}
float rand(vec2 co){
return fract(sin(dot(co.xy ,vec2(12.9898,78.233))) * 43758.5453);
}
uniform float amplitude = -8.0;
uniform float vertscale = 0.3;
void vertex() {
float yoffset = -8.0 + amplitude * snoise(vec3((UV + offset) * vertscale, TIME / 4.0));
if (lfix && rfix)
yoffset *= 1.0 - UV.y;
else if (lfix)
yoffset *= 1.0 - UV.y * (1.0 - UV.x);
else if (rfix)
yoffset *= 1.0 - UV.y * UV.x;
VERTEX.y += yoffset;
}
void fragment() {
float fake_time = mod(TIME, fill_time);
// float time = TIME - start_time;
COLOR = texture(TEXTURE, UV);
COLOR.a = 0.0;
float source_dist = 10.0;
if (top)
source_dist = distance(UV, vec2(0.5, 0.0));
if (lef)
source_dist = min(distance(UV, vec2(0.0, 0.5)), source_dist);
if (rig)
source_dist = min(distance(UV, vec2(1.0, 0.5)), source_dist);
if (bot)
source_dist = min(distance(UV, vec2(0.5, 1.0)), source_dist);
if (bot && lef)
source_dist = min(distance(UV, vec2(0.0, 1.0)), source_dist);
if (bot && rig)
source_dist = min(distance(UV, vec2(1.0, 1.0)), source_dist);
if (top && lef)
source_dist = min(distance(UV, vec2(0.0, 0.0)), source_dist);
if (top && rig)
source_dist = min(distance(UV, vec2(1.0, 0.0)), source_dist);
if (source_dist > 2.0)
source_dist = distance(UV, vec2(0.5));
float n = snoise(vec3((UV+offset)*noise_scale, TIME / 4.0));
vec3 uv = vec3((UV + offset), TIME / 6.0);
n = snoise(uv - vec3(0.0, 0.0, TIME / 3.0));
n += 0.5 * snoise(uv * 2.0 - vec3(0.0, 0.0, TIME / 2.5));
n += 0.25 * snoise(uv * 4.0 - vec3(0.0, 0.0, TIME / 2.0));
n += 0.125 * snoise(uv * 8.0 - vec3(0.0, 0.0, TIME / 1.8));
float time = time_alive;
COLOR.a = (n / 2.0 + 1.0) * (pow(time / fill_time, 0.3)*2.0 - source_dist);
}"
[sub_resource type="ShaderMaterial" id=5]
resource_local_to_scene = true
shader = SubResource( 4 )
shader_param/offset = Vector2( 0, 0 )
shader_param/pixels = 40.0
shader_param/fill_time = 1.5
shader_param/time_alive = 0.0
shader_param/top = false
shader_param/bot = false
shader_param/lef = false
shader_param/rig = false
shader_param/lfix = false
shader_param/rfix = false
shader_param/noise_scale = 1.0
shader_param/amplitude = -8.0
shader_param/vertscale = 0.6
[node name="Shadow" type="StaticBody2D" groups=["shadows"]]
collision_layer = 4
collision_mask = 128
script = ExtResource( 2 )
[node name="CollisionShape2D" type="CollisionShape2D" parent="."]
position = Vector2( 64, 64 )
shape = SubResource( 1 )
[node name="Graphic0" type="Sprite" parent="."]
visible = false
material = SubResource( 3 )
scale = Vector2( 2, 2 )
texture = ExtResource( 1 )
centered = false
[node name="Graphic" parent="." instance=ExtResource( 3 )]
material = SubResource( 5 )
position = Vector2( 64, 64 )
scale = Vector2( 2, 2 )
texture = ExtResource( 1 )
resolution = 8