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mouse.go
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mouse.go
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// Copyright 2021 Google LLC
//
// 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.
package input
import (
"github.com/hajimehoshi/ebiten/v2"
"github.com/divVerent/aaaaxy/internal/flag"
m "github.com/divVerent/aaaaxy/internal/math"
)
var (
mouse = flag.Bool("mouse", true, "enable mouse input")
)
const (
mouseHoverFrames = 5 * 60
mouseBlockFrames = 30
)
var (
mousePos m.Pos
mousePrevPos m.Pos
mouseHoverFrame int
mouseBlockFrame int
mouseClicking bool
mouseVisible bool = true
mouseWantClicks bool
)
func mouseUpdate(screenWidth, screenHeight, gameWidth, gameHeight int, crtK1, crtK2 float64) {
wantVisible := *mouse && mouseWantClicks && mouseHoverFrame > 0
if wantVisible != mouseVisible {
mouseVisible = wantVisible
if wantVisible {
ebiten.SetCursorMode(ebiten.CursorModeVisible)
} else {
ebiten.SetCursorMode(ebiten.CursorModeHidden)
}
}
if !*mouse {
return
}
x, y := ebiten.CursorPosition()
mousePos = pointerCoords(screenWidth, screenHeight, gameWidth, gameHeight, crtK1, crtK2, x, y)
if mousePos != mousePrevPos {
mouseHoverFrame = mouseHoverFrames
}
mousePrevPos = mousePos
if mouseBlockFrame > 0 {
mouseBlockFrame--
mouseHoverFrame = 0
mouseClicking = false
return
}
if mouseHoverFrame > 0 {
mouseHoverFrame--
hoverPos = &mousePos
}
if ebiten.IsMouseButtonPressed(ebiten.MouseButtonLeft) {
mouseClicking = true
} else if mouseClicking {
// Click on release.
mouseClicking = false
clickPos = &mousePrevPos
}
}
func mouseSetWantClicks(want bool) {
mouseWantClicks = want
}
func mouseCancel() {
mouseHoverFrame = 0
mouseBlockFrame = mouseBlockFrames
}
func (i *impulse) mousePressed() InputMap {
if !i.mouseControl {
return 0
}
if ebiten.IsMouseButtonPressed(ebiten.MouseButtonRight) {
return AnyInput
}
return 0
}