ebiten/mobile/ebitenmobileview/input_ios.go
2022-02-06 18:34:31 +09:00

64 lines
1.5 KiB
Go

// Copyright 2016 Hajime Hoshi
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build ios
// +build ios
package ebitenmobileview
import (
"fmt"
"github.com/hajimehoshi/ebiten/v2/internal/ui"
)
// #cgo CFLAGS: -x objective-c
// #cgo LDFLAGS: -framework Foundation -framework UIKit
//
// #import <UIKit/UIKit.h>
import "C"
var ptrToID = map[int64]int{}
func getIDFromPtr(ptr int64) int {
if id, ok := ptrToID[ptr]; ok {
return id
}
maxID := 0
for _, id := range ptrToID {
if maxID < id {
maxID = id
}
}
id := maxID + 1
ptrToID[ptr] = id
return id
}
func UpdateTouchesOnIOS(phase int, ptr int64, x, y int) {
switch phase {
case C.UITouchPhaseBegan, C.UITouchPhaseMoved, C.UITouchPhaseStationary:
id := getIDFromPtr(ptr)
touches[ui.TouchID(id)] = position{x, y}
updateInput()
case C.UITouchPhaseEnded, C.UITouchPhaseCancelled:
id := getIDFromPtr(ptr)
delete(ptrToID, ptr)
delete(touches, ui.TouchID(id))
updateInput()
default:
panic(fmt.Sprintf("ebitenmobileview: invalid phase: %d", phase))
}
}