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[Touchscreen] Properly handle "dragging" stylus across screen

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wheremyfoodat 2023-08-20 23:42:55 +03:00
parent d70a1ca7a8
commit 706503974c
2 changed files with 30 additions and 11 deletions
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2
include/services/hid.hpp
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@ -142,4 +142,6 @@ class HIDService {
void releaseTouchScreen() {
touchScreenPressed = false;
}
bool isTouchScreenPressed() { return touchScreenPressed; }
};

39
src/emulator.cpp
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@ -316,19 +316,36 @@ void Emulator::run() {
// Detect mouse motion events for gyroscope emulation
case SDL_MOUSEMOTION: {
if (romType == ROMType::None) break;
// Handle "dragging" across the touchscreen
if (hid.isTouchScreenPressed()) {
const s32 x = event.motion.x;
const s32 y = event.motion.y;
// Check if touch falls in the touch screen area and register the new touch screen position
if (y >= 240 && y <= 480 && x >= 40 && x < 40 + 320) {
// Convert to 3DS coordinates
u16 x_converted = static_cast<u16>(x) - 40;
u16 y_converted = static_cast<u16>(y) - 240;
hid.setTouchScreenPress(x_converted, y_converted);
}
}
// We use right click to indicate we want to rotate the console. If right click is not held, then this is not a gyroscope rotation
if (romType == ROMType::None || !holdingRightClick) break;
if (holdingRightClick) {
// Relative motion since last mouse motion event
const s32 motionX = event.motion.xrel;
const s32 motionY = event.motion.yrel;
// Relative motion since last mouse motion event
const s32 motionX = event.motion.xrel;
const s32 motionY = event.motion.yrel;
// The gyroscope involves lots of weird math I don't want to bother with atm
// So up until then, we will set the gyroscope euler angles to fixed values based on the direction of the relative motion
const s32 roll = motionX > 0 ? 0x7f : -0x7f;
const s32 pitch = motionY > 0 ? 0x7f : -0x7f;
hid.setRoll(roll);
hid.setPitch(pitch);
// The gyroscope involves lots of weird math I don't want to bother with atm
// So up until then, we will set the gyroscope euler angles to fixed values based on the direction of the relative motion
const s32 roll = motionX > 0 ? 0x7f : -0x7f;
const s32 pitch = motionY > 0 ? 0x7f : -0x7f;
hid.setRoll(roll);
hid.setPitch(pitch);
}
break;
}