New ambient mode

[kaka/cakelight.git] / src / kaka / cakelight / LedFrame.java

diff --git a/src/kaka/cakelight/LedFrame.java b/src/kaka/cakelight/LedFrame.java
index 4d6b68a..9d95b0c 100644 (file)
--- a/src/kaka/cakelight/LedFrame.java
+++ b/src/kaka/cakelight/LedFrame.java
@@ -1,11 +1,13 @@
 package kaka.cakelight;
 
 public class LedFrame {
+    private Configuration config;
     private byte[] bytes;
     private int roff = 0, goff = 2, boff = 1; // Color values are stored as RBG, which is what the LED list takes.
 
     public static LedFrame from(Configuration config) {
         LedFrame frame = new LedFrame();
+        frame.config = config;
         frame.bytes = new byte[config.leds.getCount() * 3];
         return frame;
     }
@@ -41,4 +43,21 @@ public class LedFrame {
     public byte[] getBytes() {
         return bytes;
     }
+
+    // TODO this needs to be improved
+    /** The x position of the led from 0.0-1.0. */
+    public double xOf(int led) {
+        /* left   */ if (led >= config.leds.cols * 2 + config.leds.rows) return 0;
+        /* top    */ if (led >= config.leds.cols + config.leds.rows) return 1 - (double)(led - config.leds.cols - config.leds.rows) / config.leds.cols;
+        /* right  */ if (led >= config.leds.cols) return 1;
+        /* bottom */ return (double)led / config.leds.cols;
+    }
+
+    /** The y position of the led from 0.0-1.0. */
+    public double yOf(int led) {
+        /* left   */ if (led >= config.leds.cols * 2 + config.leds.rows) return (double)(led - config.leds.cols * 2 - config.leds.rows) / config.leds.rows;
+        /* top    */ if (led >= config.leds.cols + config.leds.rows) return 0;
+        /* right  */ if (led >= config.leds.cols) return 1 - (double)(led - config.leds.cols) / config.leds.rows;
+        /* bottom */ return 1;
+    }
 }