mirror of
https://github.com/ivanizag/izapple2.git
synced 2024-12-28 17:29:57 +00:00
113 lines
2.2 KiB
Go
113 lines
2.2 KiB
Go
package main
|
|
|
|
import (
|
|
"runtime"
|
|
"time"
|
|
|
|
"github.com/go-gl/glfw/v3.3/glfw"
|
|
)
|
|
|
|
/*
|
|
Apple 2 supports four paddles and 3 pushbuttons. The first two paddles are
|
|
the X, Y axis of the first joystick. The second two correspond the the second
|
|
joystick.
|
|
Button 0 is the primary button of joystick 0.
|
|
Button 1 is the secondary button of joystick 0 but also the primary button of
|
|
joystick 1.
|
|
Button 2 is the secondary button of Joystick 1.
|
|
*/
|
|
|
|
// TODO: key as buttons as on the IIe and mouse as joystick
|
|
|
|
type joystickInfo struct {
|
|
present bool
|
|
name string
|
|
paddles [2]uint8
|
|
buttons [2]bool
|
|
}
|
|
|
|
type joysticks struct {
|
|
s *state
|
|
info [2]*joystickInfo
|
|
}
|
|
|
|
const unplugged = uint8(255) // Max resistance when unplugged
|
|
|
|
func newJoysticks(s *state) *joysticks {
|
|
var j joysticks
|
|
j.s = s
|
|
return &j
|
|
}
|
|
|
|
func (j *joysticks) start() {
|
|
pool := time.NewTicker(time.Second / 50)
|
|
go func() {
|
|
runtime.LockOSThread()
|
|
|
|
for {
|
|
select {
|
|
case <-pool.C:
|
|
j.info[0] = j.queryJoystick(glfw.Joystick1)
|
|
j.info[1] = j.queryJoystick(glfw.Joystick2)
|
|
|
|
j.s.devices.joystick.updateJoy1(j.info[0])
|
|
j.s.devices.joystick.updateJoy2(j.info[1])
|
|
}
|
|
}
|
|
}()
|
|
|
|
}
|
|
|
|
func (j *joysticks) queryJoystick(joy glfw.Joystick) *joystickInfo {
|
|
if !joy.Present() {
|
|
return nil
|
|
}
|
|
|
|
var info joystickInfo
|
|
info.name = joy.GetName()
|
|
buttons := joy.GetButtons()
|
|
for i, b := range buttons {
|
|
if b == glfw.Press {
|
|
info.buttons[i%2] = true
|
|
}
|
|
}
|
|
axes := joy.GetAxes()
|
|
for i := 0; i < len(info.paddles); i++ {
|
|
info.paddles[i] = unplugged
|
|
if i < len(axes) {
|
|
v := uint16((axes[i] + 1.0) / 2.0 * 256.0)
|
|
if v > 255 {
|
|
v = 255
|
|
}
|
|
info.paddles[i] = uint8(v)
|
|
}
|
|
}
|
|
return &info
|
|
}
|
|
|
|
func (j *joysticks) ReadButton(i int) bool {
|
|
var value bool
|
|
i0 := j.info[0]
|
|
i1 := j.info[1]
|
|
switch i {
|
|
case 0:
|
|
value = (i0 != nil) && i0.buttons[0]
|
|
case 1:
|
|
// It can be secondary of first or primary of second
|
|
value = ((i0 != nil) && i0.buttons[1]) ||
|
|
(i1 != nil) && i1.buttons[0]
|
|
case 2:
|
|
value = (i1 != nil) && i1.buttons[0]
|
|
}
|
|
return value
|
|
}
|
|
|
|
func (j *joysticks) ReadPaddle(i int) (uint8, bool) {
|
|
var value = unplugged
|
|
info := j.info[i/2]
|
|
if info != nil {
|
|
value = info.paddles[i%2]
|
|
}
|
|
return value, value != unplugged
|
|
}
|