add shader extension

Author: mikebarkmin

.env

@@ -27,12 +27,13 @@ function s4j_build() {
 alias s4jb="s4j_build"
 
 function s4j_diff_docs() {
-  nvim -dR <(cd $(s4j_workdir)/docs/de; find . | sort) <(cd $(s4j_workdir)/docs/en; find . | sort)
+  diff -d <(tree $(s4j_workdir)/docs/en/) <(tree $(s4j_workdir)/docs/de/)
 }
 alias s4jdd="s4j_diff_docs"
 
 function s4j_lint_docs() {
-  find docs -type f -print | xargs grep "construction"
+  find $(s4j_workdir)/docs/en/book -type f -print | xargs grep "construction"
+  find $(s4j_workdir)/docs/de/book -type f -print | xargs grep "construction"
 }
 alias s4jld="s4j_lint_docs"
 

CHANGELOG.md

@@ -4,6 +4,37 @@ index: 4
 lang: en
 ---
 
+## 4.12.0
+
+- 🚀 Feat: There is a new color extension providing a color class and all named HTML colors for easy reference.
+
+```java
+Color c = new Color("#FF0000"); // red
+mySprite.setTint(c);
+
+mySprite.setTint(HtmlColor.AZURE);
+```
+
+- 🚀 Feat: Add shaders to sprites and to stages. You can find the shader example in the examples directory. For a quick overview you can look at the following code snippet, which works for sprites and for stages.
+
+```java
+class ShaderSprite extends Sprite {
+    public ShaderSprite() {
+        var shader = this.setShader("blur", "blur.glsl");
+        shader.set("radius", 10.0);
+        this.switchShader("blur");
+    }
+
+    public void whenKeyPressed(int keyCode) {
+        if (keyCode == KeyEvent.VK_N) {
+            this.nextShader();
+        } else if (keyCode == KeyEvent.VK_R) {
+            this.resetShader();
+        }
+    }
+}
+```
+
 ## 4.11.0
 
 - 🚀 Feat: A broadcast and whenIReceive methods for the Object-class, which makes it possible to send anything as a broadcast.

docs/de/book/examples/shader.md

@@ -0,0 +1,14 @@
+---
+name: Shader
+lang: de
+---
+
+# Shader
+
+Ein Beispiel, das zeigt, wie man Shader auf Stage- und Sprite-Objekten verwendet.
+
+![Shader Beispiel](/assets/shader.gif)
+
+## Quelltext
+
+- Java: https://github.com/openpatch/scratch-for-java/tree/main/examples/java/Shader

docs/de/book/reference/sprite/looks/addShader.json

@@ -0,0 +1,5 @@
+{
+  "template": "construction",
+  "class": "Sprite",
+  "name": "addShader"
+}

docs/de/book/reference/sprite/looks/getCurrentShader.json

@@ -0,0 +1,5 @@
+{
+  "template": "construction",
+  "class": "Sprite",
+  "name": "getCurrentShader"
+}

docs/de/book/reference/sprite/looks/getCurrentShaderIndex.json

@@ -0,0 +1,5 @@
+{
+  "template": "construction",
+  "class": "Sprite",
+  "name": "getCurrentShaderIndex"
+}

docs/de/book/reference/sprite/looks/getCurrentShaderName.json

@@ -0,0 +1,5 @@
+{
+  "template": "construction",
+  "class": "Sprite",
+  "name": "getCurrentShaderName"
+}

docs/de/book/reference/sprite/looks/getShader.json

@@ -0,0 +1,5 @@
+{
+  "template": "construction",
+  "class": "Sprite",
+  "name": "getShader"
+}

docs/de/book/reference/sprite/looks/nextShader.json

@@ -0,0 +1,5 @@
+{
+  "template": "construction",
+  "class": "Sprite",
+  "name": "nextShader"
+}

docs/de/book/reference/sprite/looks/resetShader.json

@@ -0,0 +1,5 @@
+{
+  "template": "construction",
+  "class": "Sprite",
+  "name": "resetShader"
+}