4.6, new attack, enemy spawning, shaders, bunch of stuff

shaders/vhs_glitch.gdshader

@@ -0,0 +1,50 @@
+shader_type canvas_item;
+
+// Your original target color detection
+uniform vec4 target_color : source_color = vec4(0.0, 0.007, 0.939, 1.0);
+uniform float color_tolerance : hint_range(0.0, 1.0) = 0.05; 
+
+uniform sampler2D screen_texture : hint_screen_texture, repeat_disable, filter_nearest;
+
+// New uniforms for the smooth rainbow edge effect
+uniform float color_shift_intensity : hint_range(0.0, 0.2) = 0.08;
+uniform float edge_rainbow_spread : hint_range(0.1, 5.0) = 2.0; 
+uniform float shift_speed : hint_range(0.0, 5.0) = 1.0;
+uniform float scanline_intensity : hint_range(0.0, 1.0) = 0.15;
+
+void fragment() {
+	vec4 original_screen_color = texture(screen_texture, SCREEN_UV);
+
+	if (distance(original_screen_color.rgb, target_color.rgb) > color_tolerance) {
+		COLOR = original_screen_color;
+	} else {
+		vec2 uv = SCREEN_UV;
+
+		vec2 center_offset = uv - vec2(0.5);
+		float dist_from_center = length(center_offset);
+
+		float edge_factor = pow(dist_from_center, edge_rainbow_spread);
+
+		float time_sin = sin(TIME * shift_speed) - 1.2;
+		float time_cos = cos(TIME * shift_speed * 0.8) - 1.2;
+		//float time_sin = sin(dist_from_center * shift_speed);
+		//float time_cos = cos(dist_from_center * shift_speed * 0.8);
+		//vec2 red_offset = center_offset * color_shift_intensity * edge_factor * time_sin;
+		//vec2 blue_offset = center_offset * color_shift_intensity * edge_factor * -time_cos;
+		//vec2 green_offset = center_offset * color_shift_intensity * edge_factor * (time_sin * 0.5);
+		vec2 red_offset = vec2(0.1, 0.5) * color_shift_intensity * time_sin;
+		vec2 blue_offset = vec2(-0.1, 0.5) * color_shift_intensity * -time_cos;
+		vec2 green_offset = vec2(-0.1, -0.5) * color_shift_intensity * (time_sin);
+
+		float r = texture(screen_texture, uv + red_offset).r;
+		float g = texture(screen_texture, uv + green_offset).g;
+		float b = texture(screen_texture, uv + blue_offset).b;
+
+		vec4 final_color = vec4(r, g, b, 1.0);
+
+		//float scanline = sin(uv.y * 400.0 - TIME * 2.0) * 0.2 + 1.;
+		//final_color.rgb *= scanline * scanline_intensity; 
+
+		COLOR = final_color;
+	}
+}