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/**
* Copyright 2013 Dolphin Emulator Project
* Licensed under GPLv2+
* Refer to the license.txt file included.
*/
package org.yuzu.yuzu_emu.overlay;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.drawable.BitmapDrawable;
import android.view.MotionEvent;
import org.yuzu.yuzu_emu.NativeLibrary;
import org.yuzu.yuzu_emu.NativeLibrary.ButtonType;
import org.yuzu.yuzu_emu.utils.EmulationMenuSettings;
/**
* Custom {@link BitmapDrawable} that is capable
* of storing it's own ID.
*/
public final class InputOverlayDrawableJoystick {
// The ID value what type of joystick this Drawable represents.
private int mJoystickId;
// The ID value what type of button this Drawable represents.
private int mButtonId;
// The ID value what motion event is tracking
private int mTrackId = -1;
private float mXAxis;
private float mYAxis;
private int mControlPositionX, mControlPositionY;
private int mWidth;
private int mHeight;
private Rect mVirtBounds;
private Rect mOrigBounds;
private BitmapDrawable mOuterBitmap;
private BitmapDrawable mDefaultStateInnerBitmap;
private BitmapDrawable mPressedStateInnerBitmap;
private BitmapDrawable mBoundsBoxBitmap;
private boolean mPressedState = false;
/**
* Constructor
*
* @param res {@link Resources} instance.
* @param bitmapOuter {@link Bitmap} which represents the outer non-movable part of the joystick.
* @param bitmapInnerDefault {@link Bitmap} which represents the default inner movable part of the joystick.
* @param bitmapInnerPressed {@link Bitmap} which represents the pressed inner movable part of the joystick.
* @param rectOuter {@link Rect} which represents the outer joystick bounds.
* @param rectInner {@link Rect} which represents the inner joystick bounds.
* @param joystick Identifier for which joystick this is.
*/
public InputOverlayDrawableJoystick(Resources res, Bitmap bitmapOuter,
Bitmap bitmapInnerDefault, Bitmap bitmapInnerPressed,
Rect rectOuter, Rect rectInner, int joystick, int button) {
mJoystickId = joystick;
mButtonId = button;
mOuterBitmap = new BitmapDrawable(res, bitmapOuter);
mDefaultStateInnerBitmap = new BitmapDrawable(res, bitmapInnerDefault);
mPressedStateInnerBitmap = new BitmapDrawable(res, bitmapInnerPressed);
mBoundsBoxBitmap = new BitmapDrawable(res, bitmapOuter);
mWidth = bitmapOuter.getWidth();
mHeight = bitmapOuter.getHeight();
setBounds(rectOuter);
mDefaultStateInnerBitmap.setBounds(rectInner);
mPressedStateInnerBitmap.setBounds(rectInner);
mVirtBounds = getBounds();
mOrigBounds = mOuterBitmap.copyBounds();
mBoundsBoxBitmap.setAlpha(0);
mBoundsBoxBitmap.setBounds(getVirtBounds());
SetInnerBounds();
}
public void draw(Canvas canvas) {
mOuterBitmap.draw(canvas);
getCurrentStateBitmapDrawable().draw(canvas);
mBoundsBoxBitmap.draw(canvas);
}
public boolean updateStatus(MotionEvent event) {
int pointerIndex = event.getActionIndex();
int xPosition = (int) event.getX(pointerIndex);
int yPosition = (int) event.getY(pointerIndex);
int pointerId = event.getPointerId(pointerIndex);
int motion_event = event.getAction() & MotionEvent.ACTION_MASK;
boolean isActionDown = motion_event == MotionEvent.ACTION_DOWN || motion_event == MotionEvent.ACTION_POINTER_DOWN;
boolean isActionUp = motion_event == MotionEvent.ACTION_UP || motion_event == MotionEvent.ACTION_POINTER_UP;
if (isActionDown) {
if (!getBounds().contains(xPosition, yPosition)) {
return false;
}
mPressedState = true;
mOuterBitmap.setAlpha(0);
mBoundsBoxBitmap.setAlpha(255);
if (EmulationMenuSettings.getJoystickRelCenter()) {
getVirtBounds().offset(xPosition - getVirtBounds().centerX(),
yPosition - getVirtBounds().centerY());
}
mBoundsBoxBitmap.setBounds(getVirtBounds());
mTrackId = pointerId;
}
if (isActionUp) {
if (mTrackId != pointerId) {
return false;
}
mPressedState = false;
mXAxis = 0.0f;
mYAxis = 0.0f;
mOuterBitmap.setAlpha(255);
mBoundsBoxBitmap.setAlpha(0);
setVirtBounds(new Rect(mOrigBounds.left, mOrigBounds.top, mOrigBounds.right,
mOrigBounds.bottom));
setBounds(new Rect(mOrigBounds.left, mOrigBounds.top, mOrigBounds.right,
mOrigBounds.bottom));
SetInnerBounds();
mTrackId = -1;
return true;
}
if (mTrackId == -1)
return false;
for (int i = 0; i < event.getPointerCount(); i++) {
if (mTrackId != event.getPointerId(i)) {
continue;
}
float touchX = event.getX(i);
float touchY = event.getY(i);
float maxY = getVirtBounds().bottom;
float maxX = getVirtBounds().right;
touchX -= getVirtBounds().centerX();
maxX -= getVirtBounds().centerX();
touchY -= getVirtBounds().centerY();
maxY -= getVirtBounds().centerY();
final float AxisX = touchX / maxX;
final float AxisY = touchY / maxY;
final float oldXAxis = mXAxis;
final float oldYAxis = mYAxis;
// Clamp the circle pad input to a circle
final float angle = (float) Math.atan2(AxisY, AxisX);
float radius = (float) Math.sqrt(AxisX * AxisX + AxisY * AxisY);
if (radius > 1.0f) {
radius = 1.0f;
}
mXAxis = ((float) Math.cos(angle) * radius);
mYAxis = ((float) Math.sin(angle) * radius);
SetInnerBounds();
return oldXAxis != mXAxis && oldYAxis != mYAxis;
}
return false;
}
private void SetInnerBounds() {
int X = getVirtBounds().centerX() + (int) ((mXAxis) * (getVirtBounds().width() / 2));
int Y = getVirtBounds().centerY() + (int) ((mYAxis) * (getVirtBounds().height() / 2));
if (X > getVirtBounds().centerX() + (getVirtBounds().width() / 2))
X = getVirtBounds().centerX() + (getVirtBounds().width() / 2);
if (X < getVirtBounds().centerX() - (getVirtBounds().width() / 2))
X = getVirtBounds().centerX() - (getVirtBounds().width() / 2);
if (Y > getVirtBounds().centerY() + (getVirtBounds().height() / 2))
Y = getVirtBounds().centerY() + (getVirtBounds().height() / 2);
if (Y < getVirtBounds().centerY() - (getVirtBounds().height() / 2))
Y = getVirtBounds().centerY() - (getVirtBounds().height() / 2);
int width = mPressedStateInnerBitmap.getBounds().width() / 2;
int height = mPressedStateInnerBitmap.getBounds().height() / 2;
mDefaultStateInnerBitmap.setBounds(X - width, Y - height, X + width, Y + height);
mPressedStateInnerBitmap.setBounds(mDefaultStateInnerBitmap.getBounds());
}
public void setPosition(int x, int y) {
mControlPositionX = x;
mControlPositionY = y;
}
private BitmapDrawable getCurrentStateBitmapDrawable() {
return mPressedState ? mPressedStateInnerBitmap : mDefaultStateInnerBitmap;
}
/**
* Gets this InputOverlayDrawableJoystick's button ID.
*
* @return this InputOverlayDrawableJoystick's button ID.
*/
public int getJoystickId() {
return mJoystickId;
}
public float getXAxis() {
return mXAxis;
}
public float getYAxis() {
// Nintendo joysticks have y axis inverted
return -mYAxis;
}
public int getButtonId() {
return mButtonId;
}
public int getTrackId() {
return mTrackId;
}
public int getButtonStatus() {
// TODO: Add button support
return NativeLibrary.ButtonState.RELEASED;
}
public Rect getBounds() {
return mOuterBitmap.getBounds();
}
public void setBounds(Rect bounds) {
mOuterBitmap.setBounds(bounds);
}
private Rect getVirtBounds() {
return mVirtBounds;
}
private void setVirtBounds(Rect bounds) {
mVirtBounds = bounds;
}
public int getWidth() {
return mWidth;
}
public int getHeight() {
return mHeight;
}
}
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