Dev 0.1

* Ajout des modes de jeu
* Dev de subterra et estia
* Ajout de tous les dialogues et traduction
* Ajout d'un splashscreen

common/vfx/materials/shaders/pearlescent.gdshader

@@ -0,0 +1,42 @@
+// Found Here https://godotshaders.com/shader/pearlescent/
+
+shader_type spatial;
+
+uniform float fresnel_power = 3.0;
+uniform float interference_frequency = 3.0;
+uniform sampler2D color_ramp;
+uniform sampler2D noise;
+uniform float noise_speed = 0.1;
+uniform vec3 shift : source_color = vec3(1.0, 1.0, 1.0);
+uniform vec3 fresnel_color : source_color = vec3(1.0, 1.0, 1.0);
+
+uniform vec3 light_direction = vec3(0.0, -1.0, 0.0);
+
+float fresnel(vec3 view, vec3 normal) {
+	return pow(1.0 - dot(view, normal), fresnel_power);
+}
+
+vec3 irridescence(vec3 view, vec3 normal, vec3 light, vec2 uv2, float time) {
+	float dot_view = dot(view, normal);
+	float dot_light = dot(light, normal);
+
+	float angle = abs(dot_view - dot_light);
+	float interference = sin(angle * interference_frequency) * 0.5 + 0.5;
+    interference = clamp(interference, 0.01, 0.99);
+    
+    float noise_value = (
+        texture(noise,uv2 + vec2(time * noise_speed)).r + 
+        texture(noise,uv2 - vec2(time * noise_speed,0.)).r
+    );
+    
+    vec3 base_color = texture(color_ramp,vec2(noise_value)).rgb;
+
+	return mix(base_color, shift, interference);
+}
+
+void fragment() {
+	ALBEDO = mix(
+		irridescence(VIEW, NORMAL, light_direction, UV, TIME),
+		fresnel_color,
+		fresnel(VIEW, NORMAL));
+}