began working on inverted gameplay

android/assets/shaders/star_frag.glsl

@@ -0,0 +1,79 @@
+#extension GL_OES_standard_derivatives : enable
+
+uniform float time;
+uniform vec2 mouse;
+uniform vec2 resolution;
+#define M_PI 3.1415926535897932384626433832795
+
+//#define time (time * time * 0.05)
+
+vec2 rand2(vec2 p)
+{
+    p = vec2(dot(p, vec2(102.9898,78.233)), dot(p, vec2(26.65125, 83.054543)));
+    return fract(sin(p) * 43758.5453);
+}
+
+float rand(vec2 p)
+{
+    return fract(sin(dot(p.xy ,vec2(505.90898,18.233))) * 43037.5453);
+}
+
+// Thanks to David Hoskins https://www.shadertoy.com/view/4djGRh
+float stars(in vec2 x, float numCells, float size, float br)
+{
+    vec2 n = x * numCells;
+    vec2 f = floor(n);
+
+	float d = 1.0e10;
+    for (int i = -1; i <= 1; ++i)
+    {
+        for (int j = -1; j <= 1; ++j)
+        {
+            vec2 g = f + vec2(float(i), float(j));
+			g = n - g - rand2(mod(g, numCells)) + rand(g);
+            // Control size
+            g *= 1. / (numCells * size);
+			d = min(d, dot(g, g));
+        }
+    }
+
+    return br * (smoothstep(.95, 1., (1. - sqrt(d))));
+}
+
+
+void main()
+{
+
+	float res  = max(resolution.y, resolution.y);
+
+    vec2 coord = gl_FragCoord.xy / resolution;
+
+	vec2 tmp = coord;
+
+	coord.x = tmp.y;
+	coord.y = tmp.x;
+
+    vec3 result = vec3(0.);
+    result += stars(vec2(coord.x + time * 2.00,coord.y) , 1., 0.10, 2.)  * vec3(.74, .74, .74);
+    result += stars(vec2(coord.x + time * 1.10,coord.y) , 1., 0.10, 2.)  * vec3(.74, .74, .74);
+    result += stars(vec2(coord.x + time * 0.8,coord.y) , 1., 0.10, 2.)  * vec3(.74, .74, .74);
+    result += stars(vec2(coord.x + time * 0.5,coord.y) , 2., 0.09, 2.) * vec3(.74, .74, .74);
+    result += stars(vec2(coord.x + time * 0.2,coord.y) , 4., 0.08, 2.) * vec3(.74, .74, .74);
+    result += stars(vec2(coord.x + time * 0.05,coord.y), 8., 0.05, 1.) * vec3(.74, .74, .74);
+    result += stars(vec2(coord.x + time * 0.025,coord.y), 10., 0.05,0.8) * vec3(.95, .95, .95);
+    result += stars(coord  , 20., 0.025, 0.5) * vec3(.9, .9, .95);
+
+
+
+	gl_FragColor = vec4(result,1.);
+
+
+
+    // bar layer open scene ;
+    // vec2 bl = gl_FragCoord.xy / resolution.xy;
+
+    // if(bl.y>.50-min(time/20.,0.4) ^^ bl.y<0.50+min(time/20.0,.4))  gl_FragColor  = vec4(0.0,sqrt(coord.y+0.1),0.3,1.0);
+
+
+
+}