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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.utils.EmulationMenuSettings
import kotlin.math.atan2
import kotlin.math.cos
import kotlin.math.sin
import kotlin.math.sqrt
/**
* Custom [BitmapDrawable] that is capable
* of storing it's own ID.
*
* @param res [Resources] instance.
* @param bitmapOuter [Bitmap] which represents the outer non-movable part of the joystick.
* @param bitmapInnerDefault [Bitmap] which represents the default inner movable part of the joystick.
* @param bitmapInnerPressed [Bitmap] which represents the pressed inner movable part of the joystick.
* @param rectOuter [Rect] which represents the outer joystick bounds.
* @param rectInner [Rect] which represents the inner joystick bounds.
* @param joystickId The ID value what type of joystick this Drawable represents.
* @param buttonId The ID value what type of button this Drawable represents.
*/
class InputOverlayDrawableJoystick(
res: Resources,
bitmapOuter: Bitmap,
bitmapInnerDefault: Bitmap,
bitmapInnerPressed: Bitmap,
rectOuter: Rect,
rectInner: Rect,
val joystickId: Int,
val buttonId: Int
) {
// The ID value what motion event is tracking
var trackId = -1
var xAxis = 0f
private var yAxis = 0f
private var controlPositionX = 0
private var controlPositionY = 0
val width: Int
val height: Int
private var virtBounds: Rect
private val origBounds: Rect
private val outerBitmap: BitmapDrawable
private val defaultStateInnerBitmap: BitmapDrawable
private val pressedStateInnerBitmap: BitmapDrawable
private val boundsBoxBitmap: BitmapDrawable
private var pressedState = false
// TODO: Add button support
val buttonStatus: Int
get() =
NativeLibrary.ButtonState.RELEASED
var bounds: Rect?
get() = outerBitmap.bounds
set(bounds) {
outerBitmap.bounds = bounds!!
}
// Nintendo joysticks have y axis inverted
val realYAxis: Float
get() = -yAxis
private val currentStateBitmapDrawable: BitmapDrawable
get() = if (pressedState) pressedStateInnerBitmap else defaultStateInnerBitmap
init {
outerBitmap = BitmapDrawable(res, bitmapOuter)
defaultStateInnerBitmap = BitmapDrawable(res, bitmapInnerDefault)
pressedStateInnerBitmap = BitmapDrawable(res, bitmapInnerPressed)
boundsBoxBitmap = BitmapDrawable(res, bitmapOuter)
width = bitmapOuter.width
height = bitmapOuter.height
bounds = rectOuter
defaultStateInnerBitmap.bounds = rectInner
pressedStateInnerBitmap.bounds = rectInner
virtBounds = bounds!!
origBounds = outerBitmap.copyBounds()
boundsBoxBitmap.alpha = 0
boundsBoxBitmap.bounds = virtBounds
setInnerBounds()
}
fun draw(canvas: Canvas?) {
outerBitmap.draw(canvas!!)
currentStateBitmapDrawable.draw(canvas)
boundsBoxBitmap.draw(canvas)
}
fun updateStatus(event: MotionEvent): Boolean {
val pointerIndex = event.actionIndex
val xPosition = event.getX(pointerIndex).toInt()
val yPosition = event.getY(pointerIndex).toInt()
val pointerId = event.getPointerId(pointerIndex)
val motionEvent = event.action and MotionEvent.ACTION_MASK
val isActionDown =
motionEvent == MotionEvent.ACTION_DOWN || motionEvent == MotionEvent.ACTION_POINTER_DOWN
val isActionUp =
motionEvent == MotionEvent.ACTION_UP || motionEvent == MotionEvent.ACTION_POINTER_UP
if (isActionDown) {
if (!bounds!!.contains(xPosition, yPosition)) {
return false
}
pressedState = true
outerBitmap.alpha = 0
boundsBoxBitmap.alpha = 255
if (EmulationMenuSettings.joystickRelCenter) {
virtBounds.offset(
xPosition - virtBounds.centerX(),
yPosition - virtBounds.centerY()
)
}
boundsBoxBitmap.bounds = virtBounds
trackId = pointerId
}
if (isActionUp) {
if (trackId != pointerId) {
return false
}
pressedState = false
xAxis = 0.0f
yAxis = 0.0f
outerBitmap.alpha = 255
boundsBoxBitmap.alpha = 0
virtBounds = Rect(
origBounds.left,
origBounds.top,
origBounds.right,
origBounds.bottom
)
bounds = Rect(
origBounds.left,
origBounds.top,
origBounds.right,
origBounds.bottom
)
setInnerBounds()
trackId = -1
return true
}
if (trackId == -1) return false
for (i in 0 until event.pointerCount) {
if (trackId != event.getPointerId(i)) {
continue
}
var touchX = event.getX(i)
var touchY = event.getY(i)
var maxY = virtBounds.bottom.toFloat()
var maxX = virtBounds.right.toFloat()
touchX -= virtBounds.centerX().toFloat()
maxX -= virtBounds.centerX().toFloat()
touchY -= virtBounds.centerY().toFloat()
maxY -= virtBounds.centerY().toFloat()
val axisX = touchX / maxX
val axisY = touchY / maxY
val oldXAxis = xAxis
val oldYAxis = yAxis
// Clamp the circle pad input to a circle
val angle = atan2(axisY.toDouble(), axisX.toDouble()).toFloat()
var radius = sqrt((axisX * axisX + axisY * axisY).toDouble()).toFloat()
if (radius > 1.0f) {
radius = 1.0f
}
xAxis = cos(angle.toDouble()).toFloat() * radius
yAxis = sin(angle.toDouble()).toFloat() * radius
setInnerBounds()
return oldXAxis != xAxis && oldYAxis != yAxis
}
return false
}
private fun setInnerBounds() {
var x = virtBounds.centerX() + (xAxis * (virtBounds.width() / 2)).toInt()
var y = virtBounds.centerY() + (yAxis * (virtBounds.height() / 2)).toInt()
if (x > virtBounds.centerX() + virtBounds.width() / 2) x =
virtBounds.centerX() + virtBounds.width() / 2
if (x < virtBounds.centerX() - virtBounds.width() / 2) x =
virtBounds.centerX() - virtBounds.width() / 2
if (y > virtBounds.centerY() + virtBounds.height() / 2) y =
virtBounds.centerY() + virtBounds.height() / 2
if (y < virtBounds.centerY() - virtBounds.height() / 2) y =
virtBounds.centerY() - virtBounds.height() / 2
val width = pressedStateInnerBitmap.bounds.width() / 2
val height = pressedStateInnerBitmap.bounds.height() / 2
defaultStateInnerBitmap.setBounds(
x - width,
y - height,
x + width,
y + height
)
pressedStateInnerBitmap.bounds = defaultStateInnerBitmap.bounds
}
fun setPosition(x: Int, y: Int) {
controlPositionX = x
controlPositionY = y
}
}
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