First pass map mehanics and TiledMap

src/main/java/schule/ngb/zm/Zeichenmaschine.java

@@ -1178,6 +1178,9 @@ public class Zeichenmaschine extends Constants {
 				//saveMousePosition(evt);
 				mouseMoved(evt);
 				break;
+			case MouseEvent.MOUSE_WHEEL:
+				mouseWheelMoved(evt);
+				break;
 		}
 	}
 
@@ -1221,6 +1224,14 @@ public class Zeichenmaschine extends Constants {
 		// Intentionally left blank
 	}
 
+	public void mouseWheelMoved( MouseEvent e ) {
+		mouseWheelMoved();
+	}
+
+	public void mouseWheelMoved() {
+		// Intentionally left blank
+	}
+
 	private void saveMousePosition( MouseEvent event ) {
 		if( mouseEvent != null && event.getComponent() == canvas ) {
 			pmouseX = mouseX;
@@ -1551,7 +1562,7 @@ public class Zeichenmaschine extends Constants {
 
 		@Override
 		public void mouseWheelMoved( MouseWheelEvent e ) {
-			// enqueueEvent(e);
+			enqueueEvent(e);
 		}
 
 	}

src/main/java/schule/ngb/zm/game/Camera.java

@@ -0,0 +1,25 @@
+package schule.ngb.zm.game;
+
+import schule.ngb.zm.Constants;
+import schule.ngb.zm.shapes.Bounds;
+
+public class Camera {
+
+	double x, y, z = .0;
+
+	int width, height;
+
+	double zoom = 1.0;
+
+	public Camera() {
+		x = Constants.canvasWidth / 2.0;
+		y = Constants.canvasHeight / 2.0;
+		width = Constants.canvasWidth;
+		height = Constants.canvasHeight;
+	}
+
+	public Bounds getBounds() {
+		return new Bounds(x - width/2.0, y - height/2.0, width, height);
+	}
+
+}

src/main/java/schule/ngb/zm/game/Map.java

@@ -0,0 +1,14 @@
+package schule.ngb.zm.game;
+
+import schule.ngb.zm.Layer;
+
+import java.awt.Graphics2D;
+
+public abstract class Map {
+
+
+	public abstract void render( Graphics2D g, Camera view );
+
+
+
+}

src/main/java/schule/ngb/zm/game/Sprite.java

@@ -0,0 +1,30 @@
+package schule.ngb.zm.game;
+
+import schule.ngb.zm.util.Cache;
+import schule.ngb.zm.util.io.ImageLoader;
+
+import java.awt.Image;
+import java.awt.image.BufferedImage;
+
+public class Sprite {
+
+	public Image[] sprites;
+
+	public Sprite( String spriteFile, int cols, int rows ) {
+		BufferedImage sprite = ImageLoader.loadImage(spriteFile, false);
+
+		int w = sprite.getWidth() / cols;
+		int h = sprite.getHeight() / rows;
+
+		sprites = new Image[cols*rows];
+		for( int i = 0; i < cols; i++ ) {
+			for( int j = 0; j < rows; j++ ) {
+				sprites[j*cols + i] = ImageLoader.copyImage(
+					sprite.getSubimage(i*w, j*h, w, h)
+				);
+			}
+		}
+	}
+
+
+}

src/main/java/schule/ngb/zm/game/Tile.java

@@ -0,0 +1,28 @@
+package schule.ngb.zm.game;
+
+import schule.ngb.zm.Color;
+import schule.ngb.zm.Constants;
+
+import java.awt.Graphics2D;
+public class Tile {
+
+	int c, r;
+
+	Color clr;
+
+	public Tile( int c, int r ) {
+		this.c = c;
+		this.r = r;
+
+		clr = Color.getHSBColor(((20-c)*(20-c)+(15-r)*(15-r))/625.0, .7, .8);
+	}
+
+	public void render( Graphics2D g, int x, int y, int size ) {
+		g.setColor(clr.getJavaColor());
+		g.fillRect(x, y, size, size);
+		g.setColor(Color.DARKGRAY.getJavaColor());
+		g.drawRect(x, y, size, size);
+		g.drawString("(" + c + "," + r + ")", x+3, y+13);
+	}
+
+}

src/main/java/schule/ngb/zm/game/TiledMap.java

@@ -0,0 +1,65 @@
+package schule.ngb.zm.game;
+
+import schule.ngb.zm.Constants;
+import schule.ngb.zm.shapes.Bounds;
+import schule.ngb.zm.util.Log;
+
+import java.awt.Graphics2D;
+
+public class TiledMap extends Map {
+
+	private int columns, rows, tileSize;
+
+	private Tile[][] tiles;
+
+	public TiledMap( int columns, int rows, int tileSize ) {
+		this.columns = columns;
+		this.rows = rows;
+		this.tileSize = tileSize;
+
+		tiles = new Tile[columns][rows];
+	}
+
+	public void setTile( int column, int row, Tile tile ) {
+		tiles[column][row] = tile;
+	}
+
+	public void render( Graphics2D g, Camera view ) {
+		Bounds viewBounds = view.getBounds();
+
+		double zoomFactor = Constants.map(view.zoom, -100, 100, -2.0, 2.0);
+		zoomFactor = Constants.limit(zoomFactor, -2.0, 2.0);
+
+		double zoomTileSize = zoomFactor * tileSize;
+
+		int minCol, maxCol, minRow, maxRow, dX, dY;
+
+		if( viewBounds.getMinX() < 0 ) {
+			minCol = 0;
+			dX = (int)(-1 * viewBounds.getMinX());
+		} else {
+			minCol = (int)(viewBounds.getMinX() / tileSize);
+			dX = -1 * (int)(viewBounds.getMinX()) % tileSize;
+		}
+		maxCol = Math.min((int)(viewBounds.getMaxX() / tileSize), columns-1);
+
+		if( viewBounds.getMinY() < 0 ) {
+			minRow = 0;
+			dY = (int)(-1 * viewBounds.getMinY());
+		} else {
+			minRow = (int)(viewBounds.getMinY() / tileSize);
+			dY = -1 * (int)(viewBounds.getMinY()) % tileSize;
+		}
+		maxRow = Math.min((int)(viewBounds.getMaxY() / tileSize), rows-1);
+
+		for( int r = minRow; r <= maxRow; r++ ) {
+			for( int c = minCol; c <= maxCol; c++ ) {
+				if( tiles[c][r] != null ) {
+					tiles[c][r].render(g, dX + (c-minCol) * tileSize, dY + (r-minRow) * tileSize, tileSize);
+				}
+			}
+		}
+	}
+
+	private static final Log LOG = Log.getLogger(TiledMap.class);
+}

src/test/java/schule/ngb/zm/game/TiledMapTest.java

@@ -0,0 +1,62 @@
+package schule.ngb.zm.game;
+
+import schule.ngb.zm.Zeichenmaschine;
+
+import java.awt.event.MouseWheelEvent;
+
+class TiledMapTest extends Zeichenmaschine {
+
+	public static final int COLS = 40;
+
+	public static final int ROWS = 30;
+
+	public static final int TILE_SIZE = 40;
+
+	private TiledMap map;
+
+	private Camera cam;
+
+	public TiledMapTest() {
+		super(20*TILE_SIZE, 15*TILE_SIZE, "TiledMapTest");
+	}
+	@Override
+	public void setup() {
+		map = new TiledMap(COLS, ROWS, TILE_SIZE);
+
+		for( int i = 0; i < COLS; i++ ) {
+			for( int j = 0; j < ROWS; j++ ) {
+				map.setTile(i, j, new Tile(i, j));
+			}
+		}
+
+		cam = new Camera();
+	}
+
+	@Override
+	public void update( double delta ) {
+
+	}
+
+	@Override
+	public void draw() {
+		drawing.clear();
+		map.render(getDrawingLayer().getGraphics(), cam);
+	}
+
+	@Override
+	public void mouseDragged() {
+		cam.x -= (mouseX-pmouseX);
+		cam.y -= (mouseY-pmouseY);
+	}
+
+	@Override
+	public void mouseWheelMoved() {
+		MouseWheelEvent mwe = (MouseWheelEvent) mouseEvent;
+		cam.zoom += mwe.getWheelRotation();
+	}
+
+	public static void main( String[] args ) {
+		new TiledMapTest();
+	}
+
+}