From ee897db52b6f3c0574f5108e060a0bea56294427 Mon Sep 17 00:00:00 2001
From: kziolkowski <Katharina.Ziolkowski@gmail.com>
Date: Tue, 20 May 2025 18:27:20 +0200
Subject: [PATCH] added swaying plants shader

---
 prefabs/farm/swaying_plant.gdshader     | 43 +++++++++++++++++++++++++
 prefabs/farm/swaying_plant.gdshader.uid |  1 +
 2 files changed, 44 insertions(+)
 create mode 100644 prefabs/farm/swaying_plant.gdshader
 create mode 100644 prefabs/farm/swaying_plant.gdshader.uid

diff --git a/prefabs/farm/swaying_plant.gdshader b/prefabs/farm/swaying_plant.gdshader
new file mode 100644
index 0000000..b6a1686
--- /dev/null
+++ b/prefabs/farm/swaying_plant.gdshader
@@ -0,0 +1,43 @@
+// original wind shader from https://github.com/Maujoe/godot-simple-wind-shader-2d/tree/master/assets/maujoe.simple_wind_shader_2d
+// original script modified by HungryProton so that the assets are moving differently : https://pastebin.com/VL3AfV8D
+//
+// speed - The speed of the wind movement.
+// minStrength - The minimal strength of the wind movement.
+// maxStrength - The maximal strength of the wind movement.
+// strengthScale - Scalefactor for the wind strength.
+// interval - The time between minimal and maximal strength changes.
+// detail - The detail (number of waves) of the wind movement.
+// distortion - The strength of geometry distortion.
+// heightOffset - The height where the wind begins to move. By default 0.0.
+
+shader_type canvas_item;
+render_mode blend_mix;
+
+// Wind settings.
+uniform float speed = 1.0;
+uniform float minStrength : hint_range(0.0, 1.0) = 0.05;
+uniform float maxStrength : hint_range(0.0, 1.0) = 0.01;
+uniform float strengthScale = 100.0;
+uniform float interval = 3.5;
+uniform float detail = 1.0;
+uniform float distortion : hint_range(0.0, 1.0);
+uniform float heightOffset : hint_range(0.0, 1.0);
+
+// With the offset value, you can if you want different moves for each asset. Just put a random value (1, 2, 3) in the editor. Don't forget to mark the material as unique if you use this
+uniform float offset = 0;
+
+
+float getWind(vec2 vertex, vec2 uv, float time){
+    float diff = pow(maxStrength - minStrength, 2.0);
+    float strength = clamp(minStrength + diff + sin(time / interval) * diff, minStrength, maxStrength) * strengthScale;
+    float wind = (sin(time) + cos(time * detail)) * strength * max(0.0, (1.0-uv.y) - heightOffset);
+
+    return wind;
+}
+
+void vertex() {
+    vec4 pos = MODEL_MATRIX * vec4(0.0, 0.0, 0.0, 1.0);
+    float time = TIME * speed + offset;
+    //float time = TIME * speed + pos.x * pos.y  ; not working when moving...
+    VERTEX.x += getWind(VERTEX.xy, UV, time);
+}
\ No newline at end of file
diff --git a/prefabs/farm/swaying_plant.gdshader.uid b/prefabs/farm/swaying_plant.gdshader.uid
new file mode 100644
index 0000000..98f372c
--- /dev/null
+++ b/prefabs/farm/swaying_plant.gdshader.uid
@@ -0,0 +1 @@
+uid://braevmqauoek7