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google balls
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9.3 kB · 286 lines
Java
at master
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286import javax.microedition.midlet.*;import javax.microedition.lcdui.*;
public class GoogleBallsMIDlet extends MIDlet implements CommandListener { private Display display; private BallCanvas canvas; private Command exitCommand; public GoogleBallsMIDlet() { display = Display.getDisplay(this); canvas = new BallCanvas(); exitCommand = new Command("Exit", Command.EXIT, 1); canvas.addCommand(exitCommand); canvas.setCommandListener(this); } protected void startApp() { display.setCurrent(canvas); canvas.start(); } protected void pauseApp() { canvas.stop(); } protected void destroyApp(boolean unconditional) { canvas.stop(); } public void commandAction(Command c, Displayable d) { if (c == exitCommand) { destroyApp(false); notifyDestroyed(); } }}
class BallCanvas extends Canvas implements Runnable { private Thread thread; private boolean running; private Point[] points; private int mouseX, mouseY; private int width, height; private boolean hasPointerEvents; private float scaleFactor; // Google logo ball data (x, y, size, color) - base coordinates for ~400x300 private static final int[][] BALL_DATA = { {202, 78, 9, 0xED9D33}, {348, 83, 9, 0xD44D61}, {256, 69, 9, 0x4F7AF2}, {214, 59, 9, 0xEF9A1E}, {265, 36, 9, 0x4976F3}, {300, 78, 9, 0x269230}, {294, 59, 9, 0x1F9E2C}, {45, 88, 9, 0x1C48DD}, {268, 52, 9, 0x2A56EA}, {73, 83, 9, 0x3355D8}, {294, 6, 9, 0x36B641}, {235, 62, 9, 0x2E5DEF}, {353, 42, 8, 0xD53747}, {336, 52, 8, 0xEB676F}, {208, 41, 8, 0xF9B125}, {321, 70, 8, 0xDE3646}, {8, 60, 8, 0x2A59F0}, {180, 81, 8, 0xEB9C31}, {146, 65, 8, 0xC41731}, {145, 49, 8, 0xD82038}, {246, 34, 8, 0x5F8AF8}, {169, 69, 8, 0xEFA11E}, {273, 99, 8, 0x2E55E2}, {248, 120, 8, 0x4167E4}, {294, 41, 8, 0x0B991A}, {267, 114, 8, 0x4869E3}, {78, 67, 8, 0x3059E3}, {294, 23, 8, 0x10A11D}, {117, 83, 8, 0xCF4055}, {137, 80, 8, 0xCD4359}, {14, 71, 8, 0x2855EA}, {331, 80, 8, 0xCA273C}, {25, 82, 8, 0x2650E1}, {233, 46, 8, 0x4A7BF9}, {73, 13, 8, 0x3D65E7}, {327, 35, 6, 0xF47875}, {319, 46, 6, 0xF36764}, {256, 81, 6, 0x1D4EEB}, {244, 88, 6, 0x698BF1}, {194, 32, 6, 0xFAC652}, {97, 56, 6, 0xEE5257}, {105, 75, 6, 0xCF2A3F}, {42, 4, 6, 0x5681F5}, {10, 27, 6, 0x4577F6}, {166, 55, 6, 0xF7B326}, {266, 88, 6, 0x2B58E8}, {178, 34, 6, 0xFACB5E}, {100, 65, 6, 0xE02E3D}, {343, 32, 6, 0xF16D6F}, {59, 5, 6, 0x507BF2}, {27, 9, 6, 0x5683F7}, {233, 116, 6, 0x3158E2}, {123, 32, 6, 0xF0696C}, {6, 38, 6, 0x3769F6}, {63, 62, 6, 0x6084EF}, {6, 49, 6, 0x2A5CF4}, {108, 36, 6, 0xF4716E}, {169, 43, 6, 0xF8C247}, {137, 37, 6, 0xE74653}, {318, 58, 6, 0xEC4147}, {226, 100, 5, 0x4876F1}, {101, 46, 5, 0xEF5C5C}, {226, 108, 5, 0x2552EA}, {17, 17, 5, 0x4779F7}, {232, 93, 5, 0x4B78F1} }; // Base dimensions the logo was designed for private static final int BASE_WIDTH = 360; private static final int BASE_HEIGHT = 130; public BallCanvas() { width = getWidth(); height = getHeight(); // Calculate scale factor to fit screen float scaleX = (float)width / BASE_WIDTH; float scaleY = (float)height / BASE_HEIGHT; scaleFactor = Math.min(scaleX, scaleY); // Don't scale up, only down if (scaleFactor > 1.0f) scaleFactor = 1.0f; // Check if device has touch support hasPointerEvents = hasPointerEvents(); // Initialize points with scaling points = new Point[BALL_DATA.length]; int offsetX = width / 2 - (int)(BASE_WIDTH * scaleFactor / 2); int offsetY = height / 2 - (int)(BASE_HEIGHT * scaleFactor / 2); for (int i = 0; i < BALL_DATA.length; i++) { int x = (int)(BALL_DATA[i][0] * scaleFactor) + offsetX; int y = (int)(BALL_DATA[i][1] * scaleFactor) + offsetY; int size = Math.max(2, (int)(BALL_DATA[i][2] * scaleFactor)); int color = BALL_DATA[i][3]; points[i] = new Point(x, y, size, color); } mouseX = width / 2; mouseY = height / 2; } public void start() { running = true; thread = new Thread(this); thread.start(); } public void stop() { running = false; } public void run() { while (running) { update(); repaint(); try { Thread.sleep(30); } catch (InterruptedException e) { // Ignore } } } private void update() { for (int i = 0; i < points.length; i++) { points[i].update(mouseX, mouseY); } } protected void paint(Graphics g) { // Clear screen with white g.setColor(0xFFFFFF); g.fillRect(0, 0, width, height); // Draw all points for (int i = 0; i < points.length; i++) { points[i].draw(g); } // Draw controls hint g.setColor(0xCCCCCC); g.setFont(Font.getFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN, Font.SIZE_SMALL)); if (hasPointerEvents) { g.drawString("Touch/Keys", 2, height - 2, Graphics.LEFT | Graphics.BOTTOM); } else { g.drawString("Arrow Keys", 2, height - 2, Graphics.LEFT | Graphics.BOTTOM); } } // Touch/pointer event handling protected void pointerPressed(int x, int y) { mouseX = x; mouseY = y; } protected void pointerDragged(int x, int y) { mouseX = x; mouseY = y; } protected void pointerReleased(int x, int y) { mouseX = x; mouseY = y; } // Key event handling for non-touch devices - faster movement protected void keyPressed(int keyCode) { int action = getGameAction(keyCode); switch (action) { case UP: mouseY = Math.max(0, mouseY - 20); break; case DOWN: mouseY = Math.min(height, mouseY + 20); break; case LEFT: mouseX = Math.max(0, mouseX - 20); break; case RIGHT: mouseX = Math.min(width, mouseX + 20); break; } } protected void keyRepeated(int keyCode) { keyPressed(keyCode); }}
class Point { private int origX, origY; private int curX, curY; private int targetX, targetY; private int velX, velY; private int radius; private int size; private int color; private int curZ; private int targetZ; private int velZ; // Fixed point math (multiply by 256 for precision) private static final int FRICTION = 205; // 0.8 * 256 private static final int SPRING = 26; // 0.1 * 256 private static final int SCALE = 256; public Point(int x, int y, int size, int color) { this.origX = x; this.origY = y; this.curX = x * SCALE; this.curY = y * SCALE; this.targetX = x * SCALE; this.targetY = y * SCALE; this.size = size; this.radius = size; this.color = color; this.velX = 0; this.velY = 0; this.curZ = SCALE; this.targetZ = SCALE; this.velZ = 0; } public void update(int mouseX, int mouseY) { int screenX = curX / SCALE; int screenY = curY / SCALE; int dx = mouseX - screenX; int dy = mouseY - screenY; int distSq = dx * dx + dy * dy; // If mouse is within 150 pixels, move away if (distSq < 22500) { targetX = (curX - (dx * SCALE)); targetY = (curY - (dy * SCALE)); } else { targetX = origX * SCALE; targetY = origY * SCALE; } // Update X position int dxPos = targetX - curX; int ax = (dxPos * SPRING) / SCALE; velX += ax; velX = (velX * FRICTION) / SCALE; curX += velX; // Update Y position int dyPos = targetY - curY; int ay = (dyPos * SPRING) / SCALE; velY += ay; velY = (velY * FRICTION) / SCALE; curY += velY; // Calculate Z based on distance from origin int dox = origX - (curX / SCALE); int doy = origY - (curY / SCALE); int dd = dox * dox + doy * doy; int d = (int)Math.sqrt(dd); targetZ = (d * SCALE) / 100 + SCALE; int dz = targetZ - curZ; int az = (dz * SPRING) / SCALE; velZ += az; velZ = (velZ * FRICTION) / SCALE; curZ += velZ; // Update radius based on Z radius = (size * curZ) / SCALE; if (radius < 1) radius = 1; } public void draw(Graphics g) { g.setColor(color); int x = curX / SCALE; int y = curY / SCALE; g.fillArc(x - radius, y - radius, radius * 2, radius * 2, 0, 360); }}