somewhat successful walk/idle anim impl

src/net/torvald/terrarum/tests/RGBtoXYZBenchmark.kt

@@ -0,0 +1,65 @@
+package net.torvald.terrarum.tests
+
+import net.torvald.colourutil.CIEXYZUtil.linearise
+import net.torvald.colourutil.CIEXYZUtil.unLinearise
+import net.torvald.colourutil.ColourUtil.getLuminosity
+import net.torvald.colourutil.ColourUtil.getLuminosityQuick
+import net.torvald.colourutil.RGB
+import net.torvald.random.HQRNG
+import kotlin.system.measureNanoTime
+
+/**
+ * Created by minjaesong on 2019-01-03.
+ */
+class RGBtoXYZBenchmark {
+
+    private val TEST_SIZE = 100000
+    private val TEST_CHUNK = 1000
+
+    operator fun invoke() {
+        val rng = HQRNG()
+        // prepare test sets
+        val testSets = Array(TEST_SIZE) {
+            RGB(rng.nextFloat(), rng.nextFloat(), rng.nextFloat())
+        }
+        // make sure to initialise Util's LUT
+        testSets[rng.nextInt(0, testSets.size)].linearise()
+        testSets[rng.nextInt(0, testSets.size)].unLinearise()
+
+
+        // conduct the experiment
+        val timer1 = ArrayList<Long>()
+        val timer2 = ArrayList<Long>()
+
+
+        for (i in 0 until TEST_SIZE step TEST_CHUNK) {
+
+            val time1 = measureNanoTime {
+                for (c in i until i + TEST_CHUNK) {
+                    testSets[c].getLuminosity()
+                }
+            }
+
+            val time2 = measureNanoTime {
+                for (c in i until i + TEST_CHUNK) {
+                    testSets[c].getLuminosityQuick()
+                }
+            }
+
+            timer1.add(time1)
+            timer2.add(time2)
+        }
+
+
+        // print out captured data
+        println("with LUT\tno LUT\tmult")
+        for (i in 0 until timer1.size) {
+            println("${timer1[i]}\t${timer2[i]}\t${timer1[i].toFloat() / timer2[i]}")
+        }
+    }
+
+}
+
+fun main(args: Array<String>) {
+    RGBtoXYZBenchmark().invoke()
+}