/**
* Created by Karim Mreisi.
*/
package com.limelight.binding.input.virtual_controller;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.view.MotionEvent;
import java.util.ArrayList;
import java.util.List;
public class DigitalPad extends VirtualControllerElement {
public final static int DIGITAL_PAD_DIRECTION_NO_DIRECTION = 0;
int direction = DIGITAL_PAD_DIRECTION_NO_DIRECTION;
public final static int DIGITAL_PAD_DIRECTION_LEFT = 1;
public final static int DIGITAL_PAD_DIRECTION_UP = 2;
public final static int DIGITAL_PAD_DIRECTION_RIGHT = 4;
public final static int DIGITAL_PAD_DIRECTION_DOWN = 8;
List<DigitalPadListener> listeners = new ArrayList<>();
private static final int DPAD_MARGIN = 5;
private final Paint paint = new Paint();
public DigitalPad(VirtualController controller, Context context) {
super(controller, context);
}
public void addDigitalPadListener(DigitalPadListener listener) {
listeners.add(listener);
}
@Override
protected void onElementDraw(Canvas canvas) {
// set transparent background
canvas.drawColor(Color.TRANSPARENT);
paint.setTextSize(getPercent(getCorrectWidth(), 20));
paint.setTextAlign(Paint.Align.CENTER);
paint.setStrokeWidth(getDefaultStrokeWidth());
if (direction == DIGITAL_PAD_DIRECTION_NO_DIRECTION) {
// draw no direction rect
paint.setStyle(Paint.Style.STROKE);
paint.setColor(getDefaultColor());
canvas.drawRect(
getPercent(getWidth(), 36), getPercent(getHeight(), 36),
getPercent(getWidth(), 63), getPercent(getHeight(), 63),
paint
);
}
// draw left rect
paint.setColor(
(direction & DIGITAL_PAD_DIRECTION_LEFT) > 0 ? pressedColor : getDefaultColor());
paint.setStyle(Paint.Style.STROKE);
canvas.drawRect(
paint.getStrokeWidth()+DPAD_MARGIN, getPercent(getHeight(), 33),
getPercent(getWidth(), 33), getPercent(getHeight(), 66),
paint
);
// draw up rect
paint.setColor(
(direction & DIGITAL_PAD_DIRECTION_UP) > 0 ? pressedColor : getDefaultColor());
paint.setStyle(Paint.Style.STROKE);
canvas.drawRect(
getPercent(getWidth(), 33), paint.getStrokeWidth()+DPAD_MARGIN,
getPercent(getWidth(), 66), getPercent(getHeight(), 33),
paint
);
// draw right rect
paint.setColor(
(direction & DIGITAL_PAD_DIRECTION_RIGHT) > 0 ? pressedColor : getDefaultColor());
paint.setStyle(Paint.Style.STROKE);
canvas.drawRect(
getPercent(getWidth(), 66), getPercent(getHeight(), 33),
getWidth() - (paint.getStrokeWidth()+DPAD_MARGIN), getPercent(getHeight(), 66),
paint
);
// draw down rect
paint.setColor(
(direction & DIGITAL_PAD_DIRECTION_DOWN) > 0 ? pressedColor : getDefaultColor());
paint.setStyle(Paint.Style.STROKE);
canvas.drawRect(
getPercent(getWidth(), 33), getPercent(getHeight(), 66),
getPercent(getWidth(), 66), getHeight() - (paint.getStrokeWidth()+DPAD_MARGIN),
paint
);
// draw left up line
paint.setColor((
(direction & DIGITAL_PAD_DIRECTION_LEFT) > 0 &&
(direction & DIGITAL_PAD_DIRECTION_UP) > 0
) ? pressedColor : getDefaultColor()
);
paint.setStyle(Paint.Style.STROKE);
canvas.drawLine(
paint.getStrokeWidth()+DPAD_MARGIN, getPercent(getHeight(), 33),
getPercent(getWidth(), 33), paint.getStrokeWidth()+DPAD_MARGIN,
paint
);
// draw up right line
paint.setColor((
(direction & DIGITAL_PAD_DIRECTION_UP) > 0 &&
(direction & DIGITAL_PAD_DIRECTION_RIGHT) > 0
) ? pressedColor : getDefaultColor()
);
paint.setStyle(Paint.Style.STROKE);
canvas.drawLine(
getPercent(getWidth(), 66), paint.getStrokeWidth()+DPAD_MARGIN,
getWidth() - (paint.getStrokeWidth()+DPAD_MARGIN), getPercent(getHeight(), 33),
paint
);
// draw right down line
paint.setColor((
(direction & DIGITAL_PAD_DIRECTION_RIGHT) > 0 &&
(direction & DIGITAL_PAD_DIRECTION_DOWN) > 0
) ? pressedColor : getDefaultColor()
);
paint.setStyle(Paint.Style.STROKE);
canvas.drawLine(
getWidth()-paint.getStrokeWidth(), getPercent(getHeight(), 66),
getPercent(getWidth(), 66), getHeight()-(paint.getStrokeWidth()+DPAD_MARGIN),
paint
);
// draw down left line
paint.setColor((
(direction & DIGITAL_PAD_DIRECTION_DOWN) > 0 &&
(direction & DIGITAL_PAD_DIRECTION_LEFT) > 0
) ? pressedColor : getDefaultColor()
);
paint.setStyle(Paint.Style.STROKE);
canvas.drawLine(
getPercent(getWidth(), 33), getHeight()-(paint.getStrokeWidth()+DPAD_MARGIN),
paint.getStrokeWidth()+DPAD_MARGIN, getPercent(getHeight(), 66),
paint
);
}
private void newDirectionCallback(int direction) {
_DBG("direction: " + direction);
// notify listeners
for (DigitalPadListener listener : listeners) {
listener.onDirectionChange(direction);
}
}
@Override
public boolean onElementTouchEvent(MotionEvent event) {
// get masked (not specific to a pointer) action
switch (event.getActionMasked()) {
case MotionEvent.ACTION_DOWN:
case MotionEvent.ACTION_POINTER_DOWN:
case MotionEvent.ACTION_MOVE: {
direction = 0;
if (event.getX() < getPercent(getWidth(), 33)) {
direction |= DIGITAL_PAD_DIRECTION_LEFT;
}
if (event.getX() > getPercent(getWidth(), 66)) {
direction |= DIGITAL_PAD_DIRECTION_RIGHT;
}
if (event.getY() > getPercent(getHeight(), 66)) {
direction |= DIGITAL_PAD_DIRECTION_DOWN;
}
if (event.getY() < getPercent(getHeight(), 33)) {
direction |= DIGITAL_PAD_DIRECTION_UP;
}
newDirectionCallback(direction);
invalidate();
return true;
}
case MotionEvent.ACTION_CANCEL:
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_POINTER_UP: {
direction = 0;
newDirectionCallback(direction);
invalidate();
return true;
}
default: {
}
}
return true;
}
public interface DigitalPadListener {
void onDirectionChange(int direction);
}
}