func (i *input) update(window *glfw.Window, scale int) error {
for g, e := range glfwKeyCodeToKey {
i.keyPressed[e] = window.GetKey(g) == glfw.Press
}
for g, e := range glfwMouseButtonToMouseButton {
i.mouseButtonPressed[e] = window.GetMouseButton(g) == glfw.Press
}
x, y := window.GetCursorPos()
i.cursorX = int(math.Floor(x)) / scale
i.cursorY = int(math.Floor(y)) / scale
for id := glfw.Joystick(0); id < glfw.Joystick(len(i.gamepads)); id++ {
if !glfw.JoystickPresent(id) {
continue
}
axes32 := glfw.GetJoystickAxes(id)
i.gamepads[id].axisNum = len(axes32)
for a := 0; a < len(i.gamepads[id].axes); a++ {
if len(axes32) <= a {
i.gamepads[id].axes[a] = 0
continue
}
i.gamepads[id].axes[a] = float64(axes32[a])
}
buttons := glfw.GetJoystickButtons(id)
i.gamepads[id].buttonNum = len(buttons)
for b := 0; b < len(i.gamepads[id].buttonPressed); b++ {
if len(buttons) <= b {
i.gamepads[id].buttonPressed[b] = false
continue
}
i.gamepads[id].buttonPressed[b] = glfw.Action(buttons[b]) == glfw.Press
}
}
return nil
}
func readJoystick(joy glfw.Joystick, turbo bool) [8]bool {
var result [8]bool
if !glfw.JoystickPresent(joy) {
return result
}
axes := glfw.GetJoystickAxes(joy)
buttons := glfw.GetJoystickButtons(joy)
result[nes.ButtonA] = buttons[0] == 1 || (turbo && buttons[2] == 1)
result[nes.ButtonB] = buttons[1] == 1 || (turbo && buttons[3] == 1)
result[nes.ButtonSelect] = buttons[6] == 1
result[nes.ButtonStart] = buttons[7] == 1
result[nes.ButtonUp] = axes[1] < -0.5
result[nes.ButtonDown] = axes[1] > 0.5
result[nes.ButtonLeft] = axes[0] < -0.5
result[nes.ButtonRight] = axes[0] > 0.5
return result
}
// inputUpdate handles input actions that are dependent on the delta between frames.
// (e.g. how much you move depends on the time delta since the last update)
func inputUpdate(w *glfw.Window, delta float32) {
for key, cb := range activeKeyboard.keyBindings {
if w.GetKey(key) == glfw.Press && cb != nil {
cb(delta)
}
}
// if the joystick is still connected, then we do the joystick polling
// TODO: for now, we're just working with Joystick1 as hardcoded
if glfw.JoystickPresent(glfw.Joystick1) {
buttons := glfw.GetJoystickButtons(glfw.Joystick1)
axes := glfw.GetJoystickAxes(glfw.Joystick1)
//groggy.Logsf("DEBUG", "inputUpdate: %d %d %d %d %d %d %d %d %d %d %d %d %d %d ", buttons[0], buttons[1], buttons[2], buttons[3], buttons[4],
// buttons[5], buttons[6], buttons[7], buttons[8], buttons[9],
// buttons[10], buttons[11], buttons[12], buttons[13])
// process the buttons
for buttonId, cb := range activeJoystick.buttonBindings {
if buttons[buttonId] > 0 && cb != nil {
cb(delta)
}
}
// process the axis values
for _, mapping := range activeJoystick.axisBindings {
if mapping.Callback == nil {
continue
}
v := axes[mapping.Id]
if v >= mapping.Min && v <= mapping.Max {
scale := mapping.Max - mapping.Min
if mapping.NegativeMapping {
// use the Max value here since NegativeMapping implies a negative ranage for the mapping
v = (float32(math.Abs(float64(v))) - float32(math.Abs(float64(mapping.Max)))) / scale
} else {
v = (v - mapping.Min) / scale
}
mapping.Callback(delta * v)
}
} // axisBindings
}
}
func (e *EventHandler) JoystickAxes(joystick Joystick) []float32 {
return glfw.GetJoystickAxes(glfw.Joystick(joystick))
}