/**
* Copyright 2013 Dolphin Emulator Project
* Licensed under GPLv2+
* Refer to the license.txt file included.
*/
package org.citra.citra_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.citra.citra_emu.NativeLibrary.ButtonType;
import org.citra.citra_emu.utils.EmulationMenuSettings;
/**
* Custom {@link BitmapDrawable} that is capable
* of storing it's own ID.
*/
public final class InputOverlayDrawableJoystick {
private final int[] axisIDs = {0, 0, 0, 0};
private final float[] axises = {0f, 0f};
private int trackId = -1;
private int mJoystickType;
private int mControlPositionX, mControlPositionY;
private int mPreviousTouchX, mPreviousTouchY;
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) {
axisIDs[0] = joystick + 1; // Up
axisIDs[1] = joystick + 2; // Down
axisIDs[2] = joystick + 3; // Left
axisIDs[3] = joystick + 4; // Right
mJoystickType = joystick;
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();
}
/**
* Gets this InputOverlayDrawableJoystick's button ID.
*
* @return this InputOverlayDrawableJoystick's button ID.
*/
public int getId() {
return mJoystickType;
}
public void draw(Canvas canvas) {
mOuterBitmap.draw(canvas);
getCurrentStateBitmapDrawable().draw(canvas);
mBoundsBoxBitmap.draw(canvas);
}
public void TrackEvent(MotionEvent event) {
int pointerIndex = event.getActionIndex();
switch (event.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN:
case MotionEvent.ACTION_POINTER_DOWN:
if (getBounds().contains((int) event.getX(pointerIndex), (int) event.getY(pointerIndex))) {
mPressedState = true;
mOuterBitmap.setAlpha(0);
mBoundsBoxBitmap.setAlpha(255);
if (EmulationMenuSettings.getJoystickRelCenter()) {
getVirtBounds().offset((int) event.getX(pointerIndex) - getVirtBounds().centerX(),
(int) event.getY(pointerIndex) - getVirtBounds().centerY());
}
mBoundsBoxBitmap.setBounds(getVirtBounds());
trackId = event.getPointerId(pointerIndex);
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_POINTER_UP:
if (trackId == event.getPointerId(pointerIndex)) {
mPressedState = false;
axises[0] = axises[1] = 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();
trackId = -1;
}
break;
}
if (trackId == -1)
return;
for (int i = 0; i < event.getPointerCount(); i++) {
if (trackId == event.getPointerId(i)) {
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;
// 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;
}
axises[0] = ((float)Math.cos(angle) * radius);
axises[1] = ((float)Math.sin(angle) * radius);
SetInnerBounds();
}
}
}
public boolean onConfigureTouch(MotionEvent event) {
int pointerIndex = event.getActionIndex();
int fingerPositionX = (int) event.getX(pointerIndex);
int fingerPositionY = (int) event.getY(pointerIndex);
int scale = 1;
if (mJoystickType == ButtonType.STICK_C) {
// C-stick is scaled down to be half the size of the circle pad
scale = 2;
}
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
mPreviousTouchX = fingerPositionX;
mPreviousTouchY = fingerPositionY;
break;
case MotionEvent.ACTION_MOVE:
int deltaX = fingerPositionX - mPreviousTouchX;
int deltaY = fingerPositionY - mPreviousTouchY;
mControlPositionX += deltaX;
mControlPositionY += deltaY;
setBounds(new Rect(mControlPositionX, mControlPositionY,
mOuterBitmap.getIntrinsicWidth() / scale + mControlPositionX,
mOuterBitmap.getIntrinsicHeight() / scale + mControlPositionY));
setVirtBounds(new Rect(mControlPositionX, mControlPositionY,
mOuterBitmap.getIntrinsicWidth() / scale + mControlPositionX,
mOuterBitmap.getIntrinsicHeight() / scale + mControlPositionY));
SetInnerBounds();
setOrigBounds(new Rect(new Rect(mControlPositionX, mControlPositionY,
mOuterBitmap.getIntrinsicWidth() / scale + mControlPositionX,
mOuterBitmap.getIntrinsicHeight() / scale + mControlPositionY)));
mPreviousTouchX = fingerPositionX;
mPreviousTouchY = fingerPositionY;
break;
}
return true;
}
public float[] getAxisValues() {
return axises;
}
public int[] getAxisIDs() {
return axisIDs;
}
private void SetInnerBounds() {
int X = getVirtBounds().centerX() + (int) ((axises[0]) * (getVirtBounds().width() / 2));
int Y = getVirtBounds().centerY() + (int) ((axises[1]) * (getVirtBounds().height() / 2));
if (mJoystickType == ButtonType.STICK_LEFT) {
X += 1;
Y += 1;
}
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;
}
public Rect getBounds() {
return mOuterBitmap.getBounds();
}
public void setBounds(Rect bounds) {
mOuterBitmap.setBounds(bounds);
}
private void setOrigBounds(Rect bounds) {
mOrigBounds = bounds;
}
private Rect getVirtBounds() {
return mVirtBounds;
}
private void setVirtBounds(Rect bounds) {
mVirtBounds = bounds;
}
public int getWidth() {
return mWidth;
}
public int getHeight() {
return mHeight;
}
}
