ebiten/mobile/ebitenmobileview/input_ios.go

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// 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.
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// +build ios
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package ebitenmobileview
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import (
"fmt"
"github.com/hajimehoshi/ebiten/v2/internal/driver"
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)
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// #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 {
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if maxID < id {
maxID = id
}
}
id := maxID + 1
ptrToID[ptr] = id
return id
}
func UpdateTouchesOnIOS(phase int, ptr int64, x, y int) {
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switch phase {
case C.UITouchPhaseBegan, C.UITouchPhaseMoved, C.UITouchPhaseStationary:
id := getIDFromPtr(ptr)
touches[driver.TouchID(id)] = position{x, y}
updateInput()
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case C.UITouchPhaseEnded, C.UITouchPhaseCancelled:
id := getIDFromPtr(ptr)
delete(ptrToID, ptr)
delete(touches, driver.TouchID(id))
updateInput()
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default:
panic(fmt.Sprintf("ebitenmobileview: invalid phase: %d", phase))
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}
}