version 30

lib/utils.dave.p5.js

@@ -1,17 +1,17 @@
-// utils.dave.p5.js v.29
+// utils.dave.p5.js v.30
 class Dave {
   // Short version of functions bellow.
-  constructor(){
-    this.grid=new Grid();
+  constructor() {
+    this.grid = new Grid();
     this.g = this.grid;
   }
   // alias for fillHsluv
   f(h, s, l) {
-    this.fillHsluv(h,s,l);
+    this.fillHsluv(h, s, l);
   }
   // alias for strokeHsluv
   s(h, s, l) {
-    this.strokeHsluv(h,s,l);
+    this.strokeHsluv(h, s, l);
   }
   // sets fill according to hsluv parameters
   fillHsluv(h, s, l) {
@@ -23,6 +23,25 @@ class Dave {
     let rgb = hsluv.hsluvToRgb([h, s, l]);
     stroke(rgb[0] * 255, rgb[1] * 255, rgb[2] * 255);
   }
+  // Create a fast get function to use instead of in P5.
+  pget(x, y, img) {
+    img.loadPixels();
+    let d = pixelDensity();
+
+    for (var i = 0; i < d; i++) {
+      for (var j = 0; j < d; j++) {
+        // loop over
+        let idx = 4 * ((y * d + j) * img.width * d + (x * d + i));
+        pixels[idx] = r;
+        pixels[idx + 1] = g;
+        pixels[idx + 2] = b;
+        pixels[idx + 3] = a;
+      }
+    }
+    // Things to take into consideration: x,y must be in image.
+    // pixelDensity has to be taken into consideration.
+    // loadPixels should be called only during the first time for this particular image.
+  }
 }
 //  A simple Grid System to place over drawings
 class Grid {
@@ -132,7 +151,12 @@ class Turtle {
   // + turn right
   // - turn left
   drawLSystem(ls, step, angle) {
-    for (let letter of ls.endString) {
+    this.drawString(ls.endString,step,angle);
+  }
+
+  // Draw a string (used by drawLSystem, but can be generic)
+  drawString(string, step, angle) {
+    for (let letter of string) {
       switch (letter) {
       case 'F':
         this.pd();
@@ -158,6 +182,7 @@ class Turtle {
       }
     }
   }
+
   // Pushes the current state of turtle to stack.
   push() {
     this.stack.push({

version.txt

@@ -1 +1 @@
-29
+30