Code refactoring.

[sixth-3d-demos.git] / src / main / java / eu / svjatoslav / sixth / e3d / examples / life / Matrix.java

diff --git a/src/main/java/eu/svjatoslav/sixth/e3d/examples/life/Matrix.java b/src/main/java/eu/svjatoslav/sixth/e3d/examples/life/Matrix.java
deleted file mode 100644 (file)
index ee7b0aa..0000000
--- a/src/main/java/eu/svjatoslav/sixth/e3d/examples/life/Matrix.java
+++ /dev/null
@@ -1,156 +0,0 @@
-package eu.svjatoslav.sixth.e3d.examples.life;
-
-import eu.svjatoslav.sixth.e3d.geometry.Point3D;
-import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.base.AbstractCompositeShape;
-import eu.svjatoslav.sixth.e3d.renderer.raster.shapes.composite.base.SubShape;
-
-/**
- * This is our 2D game of life world. It contains 2D array of {@link Cell}'s.
- */
-class Matrix extends AbstractCompositeShape {
-
-    /**
-     * Empty space between cells.
-     */
-    private static final int BORDER = 5;
-
-    /**
-     * Matrix size X and Y. (Amount of cells.)
-     */
-    private static final int SIZE = 30;
-
-    /**
-     * Object marker in 3D scene. Allows to locate all stars from the scene.
-     */
-    private static final String GROUP_STARS = "stars";
-
-    /**
-     * Object marker in 3D scene. Allows to locate surface on the scene.
-     */
-    private static final String GROUP_SURFACE = "surface";
-
-    /**
-     * 2 dimensional matrix of cells
-     */
-    private final Cell[][] cells = new Cell[SIZE][];
-
-    public Matrix(final Point3D location) {
-        super(location);
-
-
-        for (int x = 0; x < SIZE; x++) {
-            cells[x] = new Cell[SIZE];
-
-            // init Y row
-            for (int z = 0; z < SIZE; z++) {
-                // create cell and register it
-                final Cell cell = new Cell(getCellLocation(x, z));
-                cells[x][z] = cell;
-                addShape(cell);
-            }
-        }
-
-        setGroupForUngrouped(GROUP_SURFACE);
-    }
-
-    /**
-     * Clear matrix.
-     */
-    public void clear() {
-
-        // mark every cell as inactive
-        for (int x = 0; x < SIZE; x++)
-            for (int y = 0; y < SIZE; y++)
-                cells[x][y].setActive(false);
-
-        // remove history stars
-        removeGroup(GROUP_STARS);
-    }
-
-    /**
-     * Compute survived cells based on the rules of Conway's Game of Life.
-     */
-    private void computeSurvivedCells() {
-
-        for (int y = 0; y < SIZE; y++)
-            for (int x = 0; x < SIZE; x++)
-                processCell(x, y);
-
-        for (int y = 0; y < SIZE; y++)
-            for (int x = 0; x < SIZE; x++)
-                cells[x][y].setActive(cells[x][y].survives);
-
-    }
-
-    private void processCell(int x, int y) {
-        int aliveNeighbours = countNeighbours(x, y);
-
-        if (cells[x][y].isActive()) {
-            cells[x][y].survives = ((aliveNeighbours == 2) || (aliveNeighbours == 3));
-        } else {
-            cells[x][y].survives = aliveNeighbours == 3;
-        }
-    }
-
-    private int countNeighbours(int x, int y) {
-        int result = 0;
-        for (int ny = y - 1; ny <= y + 1; ny++)
-            for (int nx = x - 1; nx <= x + 1; nx++)
-                if (isCellAlive(nx, ny)) result++;
-
-        if (isCellAlive(x, y)) result--;
-
-        return result;
-    }
-
-    private boolean isCellAlive(int x, int y) {
-        if (x < 0) return false;
-        if (x >= SIZE) return false;
-        if (y < 0) return false;
-        if (y >= SIZE) return false;
-        return cells[x][y].isActive();
-    }
-
-    /**
-     * Evolve matrix for one iteration
-     */
-    public void evolve(final boolean preserveHistory) {
-        if (preserveHistory)
-            markActiveCells();
-
-        shiftStarsUp();
-
-        computeSurvivedCells();
-    }
-
-    private Point3D getCellLocation(final int x, final int z) {
-        final int shift = -((SIZE / 2) * (Cell.SIZE + BORDER));
-
-        return new Point3D(
-                (x * (Cell.SIZE + BORDER)) + shift,
-                0,
-                (z * (Cell.SIZE + BORDER)) + shift);
-    }
-
-    /**
-     * Leave trail of active cells as stars above matrix.
-     */
-    private void markActiveCells() {
-        // mark survived cells
-        for (int x = 0; x < SIZE; x++)
-            for (int y = 0; y < SIZE; y++)
-                if (cells[x][y].isActive())
-                    addShape(new Star(getCellLocation(x, y)));
-
-        setGroupForUngrouped(GROUP_STARS);
-    }
-
-    /**
-     * Find all history tracking stars and shift them up.
-     */
-    private void shiftStarsUp() {
-
-        for (final SubShape subShape : getGroup(GROUP_STARS))
-            ((Star) subShape.getShape()).getLocation().translateY(-10);
-    }
-}