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/*
Crosshair
Author: Newton
Virtual cursor for gamepad controls
*/
local crew, angle, xpos, ypos, aiming, menu;
static const CURSOR_Radius = 100;
// This is supposed to be a constant, but C4Script doesn't allow constant expressions there.
private func CURSOR_Deadzone() { return PLRCON_MaxStrength / 5; }
protected func Initialize()
{
SetVisibility(false);
xpos = ypos = 0;
aiming = false;
}
public func FxMoveTimer()
{
if (!crew)
{
RemoveObject();
return FX_Execute_Kill;
}
var target_angle = Angle(0,0,xpos,ypos)*10;
if (!Visible() && !InDeadzone())
{
// The player moved the aiming stick while the crosshair wasn't visible: Use angle directly.
angle = target_angle;
SetVisibility(true);
}
else if (!InDeadzone())
{
// Smooth small movements of the stick while the crosshair is visible.
var angle_diff = Normalize(target_angle - angle, -1800, 10);
if (Abs(angle_diff) < 450)
angle = angle + angle_diff / 8;
else
angle = target_angle;
}
else if (!aiming)
{
// The player doesn't touch the stick and no item is using the crosshair right now.
SetVisibility(false);
// Aim somewhere useful. Note that this can be overwritten by objects and isn't used for throwing.
angle = 800*(crew->GetDir()*2-1);
}
UpdatePosition();
crew->TriggerHoldingControl();
}
private func AnalogStrength() { return BoundBy(Sqrt(xpos*xpos+ypos*ypos), 0, PLRCON_MaxStrength); }
private func InDeadzone() { return AnalogStrength() < CURSOR_Deadzone(); }
private func Visible() { return this.Visibility != VIS_None; }
// Updates the visibility, returing true if it was changed.
private func SetVisibility(bool visible)
{
var newvis, oldvis;
if (visible)
newvis = VIS_Owner;
else
newvis = VIS_None;
oldvis = this.Visibility;
this.Visibility = newvis;
return newvis != oldvis;
}
private func CreateMoveEffect(object clonk)
{
crew = clonk;
UpdatePosition();
RemoveEffect("Move",this);
AddEffect("Move",this,1,1,this);
}
public func StartAim(object clonk, int default_angle, object GUImenu)
{
aiming = true;
// gui or landscape mode:
if (GUImenu)
{
SetCategory(C4D_StaticBack | C4D_IgnoreFoW | C4D_Foreground | C4D_Parallax);
menu = GUImenu;
this["Parallaxity"] = [0,0];
}
else
{
SetCategory(C4D_StaticBack | C4D_IgnoreFoW);
menu = nil;
}
// Use the given angle if the player wasn't aiming before.
if (SetVisibility(true) && default_angle)
angle = default_angle;
CreateMoveEffect(clonk);
}
private func UpdatePosition()
{
var x = +Sin(angle,CURSOR_Radius,10);
var y = -Cos(angle,CURSOR_Radius,10);
if (menu)
SetPosition(menu->GetX()+x,menu->GetY()+y);
else
SetPosition(crew->GetX()+x,crew->GetY()+y);
crew->UpdateVirtualCursorPos();
}
private func MirrorCursor()
{
return;
angle = -Normalize(angle,-1800,10);
}
public func StopAim()
{
aiming = false;
}
// Aiming means that some object is currently actively using the crosshair.
public func IsAiming()
{
return aiming;
}
// The crosshair is also active when the player is holding the aiming stick.
public func IsActive()
{
return aiming || Visible();
}
public func Aim(int ctrl, object clonk, int strength, int repeat, int status)
{
// start (stealth) aiming
if(!GetEffect("Move",this))
CreateMoveEffect(clonk);
// aiming with analog pad
if (status == CONS_Moved &&
(ctrl == CON_AimAxisUp || ctrl == CON_AimAxisDown || ctrl == CON_AimAxisLeft || ctrl == CON_AimAxisRight))
{
if(ctrl == CON_AimAxisUp) ypos = -strength;
if(ctrl == CON_AimAxisDown) ypos = strength;
if(ctrl == CON_AimAxisLeft) xpos = -strength;
if(ctrl == CON_AimAxisRight) xpos = strength;
return true;
}
return false;
}
public func Direction(int ctrl)
{
if(!crew) return;
angle = Normalize(angle,-1800,10);
//Message("%d, %d",this,angle,ctrl);
if(ctrl == CON_Left)
if(angle > 0)
MirrorCursor();
if(ctrl == CON_Right)
if(angle < 0)
MirrorCursor();
return;
}
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