diff options
Diffstat (limited to 'src/android/app/src/main/java/org/yuzu/yuzu_emu/overlay/InputOverlayDrawableJoystick.kt')
| -rw-r--r-- | src/android/app/src/main/java/org/yuzu/yuzu_emu/overlay/InputOverlayDrawableJoystick.kt | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/overlay/InputOverlayDrawableJoystick.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/overlay/InputOverlayDrawableJoystick.kt new file mode 100644 index 000000000..f1d32192a --- /dev/null +++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/overlay/InputOverlayDrawableJoystick.kt @@ -0,0 +1,282 @@ +// SPDX-FileCopyrightText: 2023 yuzu Emulator Project +// SPDX-License-Identifier: GPL-2.0-or-later + +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 + + val width: Int + val height: Int + + private var opacity: Int = 0 + + private var virtBounds: Rect + private var origBounds: Rect + + private val outerBitmap: BitmapDrawable + private val defaultStateInnerBitmap: BitmapDrawable + private val pressedStateInnerBitmap: BitmapDrawable + + private var previousTouchX = 0 + private var previousTouchY = 0 + var controlPositionX = 0 + var controlPositionY = 0 + + 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 = opacity + 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 = opacity + 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 + } + + fun onConfigureTouch(event: MotionEvent): Boolean { + val pointerIndex = event.actionIndex + val fingerPositionX = event.getX(pointerIndex).toInt() + val fingerPositionY = event.getY(pointerIndex).toInt() + + when (event.action) { + MotionEvent.ACTION_DOWN -> { + previousTouchX = fingerPositionX + previousTouchY = fingerPositionY + controlPositionX = fingerPositionX - (width / 2) + controlPositionY = fingerPositionY - (height / 2) + } + + MotionEvent.ACTION_MOVE -> { + controlPositionX += fingerPositionX - previousTouchX + controlPositionY += fingerPositionY - previousTouchY + bounds = Rect( + controlPositionX, + controlPositionY, + outerBitmap.intrinsicWidth + controlPositionX, + outerBitmap.intrinsicHeight + controlPositionY + ) + virtBounds = Rect( + controlPositionX, + controlPositionY, + outerBitmap.intrinsicWidth + controlPositionX, + outerBitmap.intrinsicHeight + controlPositionY + ) + setInnerBounds() + bounds = Rect( + Rect( + controlPositionX, + controlPositionY, + outerBitmap.intrinsicWidth + controlPositionX, + outerBitmap.intrinsicHeight + controlPositionY + ) + ) + previousTouchX = fingerPositionX + previousTouchY = fingerPositionY + } + } + origBounds = outerBitmap.copyBounds() + return true + } + + 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 + } + + fun setOpacity(value: Int) { + opacity = value + + defaultStateInnerBitmap.alpha = value + pressedStateInnerBitmap.alpha = value + + if (trackId == -1) { + outerBitmap.alpha = value + boundsBoxBitmap.alpha = 0 + } else { + outerBitmap.alpha = 0 + boundsBoxBitmap.alpha = value + } + } +} |