cleanup

1 files changed, 68 insertions, 0 deletions

diff --git a/Week11 Mandelbrot/src/com/camilstaps/mandelbrot/MandelbrotView.java b/Week11 Mandelbrot/src/com/camilstaps/mandelbrot/MandelbrotView.java
new file mode 100644
index 0000000..4cb489a
--- /dev/null
+++ b/Week11 Mandelbrot/src/com/camilstaps/mandelbrot/MandelbrotView.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2015 Camil Staps
+ */
+package com.camilstaps.mandelbrot;
+
+import fractals.Grid;
+import fractals.Mandelbrot;
+
+/**
+ *
+ * @author camilstaps
+ */
+public class MandelbrotView {
+    
+    private final MandelbrotProvider mandelbrotProvider;
+    private final Grid grid;
+    
+    public MandelbrotView(MandelbrotProvider mp, Grid grid) {
+        mandelbrotProvider = mp;
+        this.grid = grid;
+    }
+    
+    public double getX(int x_on_screen) {
+        double centerX = mandelbrotProvider.getCenterX();
+        double scale = mandelbrotProvider.getScale();
+        int grid_w = grid.getWidth();
+        double  min_x = centerX - grid_w / scale / 2,
+                max_x = centerX + grid_w / scale / 2;
+        
+        return min_x + ((double) x_on_screen) * (max_x - min_x) / grid_w;
+    }
+    
+    public double getY(int y_on_screen) {
+        double centerY = mandelbrotProvider.getCenterY();
+        double scale = mandelbrotProvider.getScale();
+        int grid_h = grid.getHeight();
+        double  min_y = centerY - grid_h / scale / 2,
+                max_y = centerY + grid_h / scale / 2;
+        
+        return min_y + (((float) y_on_screen) * (max_y - min_y) / grid_h);
+    }
+    
+    public void redraw() {
+        int repetitions = mandelbrotProvider.getRepetitions();
+        
+        int grid_w = grid.getWidth(), grid_h = grid.getHeight();
+        
+        for (int i = 0; i < grid_w; i++) {
+            for (int j = 0; j < grid_h; j++) {
+                double mandel = ((double) Mandelbrot.mandelNumber(getX(i), getY(j), repetitions) * Math.PI) / repetitions;
+                int[] color = {
+                    (int) (30 + 220 * Math.sin(mandel)), 
+                    (int) (30 + 220 * Math.sin(mandel + 2 * Math.PI / 3)), 
+                    (int) (30 + 220 * Math.sin(mandel + 4 * Math.PI / 3))};
+                //int[] color = {(int) (255 * mandel), (int) (255 * mandel), (int) (255 * mandel)};
+                grid.setPixel(i, j, color);
+            }               
+        }
+    }
+    
+    public interface MandelbrotProvider {
+        public double getCenterX();
+        public double getCenterY();
+        public double getScale();
+        public int getRepetitions();
+    }
+    
+}