const std = @import("std");
pub const c = @import("c.zig").c;

pub const TouchID = u64;

pub const FingerID = u64;

pub const TouchDeviceType = enum(c_int) {
    touchDeviceDirect, //touch screen with window-relative coordinates
    touchDeviceIndirectAbsolute, //trackpad with absolute device coordinates
    touchDeviceIndirectRelative, //trackpad with screen cursor-relative coordinates
};

pub const Finger = extern struct {
    id: FingerID, // the finger ID
    x: f32, // the x-axis location of the touch event, normalized (0...1)
    y: f32, // the y-axis location of the touch event, normalized (0...1)
    pressure: f32, // the quantity of pressure applied, normalized (0...1)
};

pub inline fn getTouchDevices(count: *c_int) ?*TouchID {
    return @ptrCast(c.SDL_GetTouchDevices(@ptrCast(count)));
}

pub inline fn getTouchDeviceName(touchID: TouchID) [*c]const u8 {
    return c.SDL_GetTouchDeviceName(touchID);
}

pub inline fn getTouchDeviceType(touchID: TouchID) TouchDeviceType {
    return @intFromEnum(c.SDL_GetTouchDeviceType(touchID));
}

pub inline fn getTouchFingers(touchID: TouchID, count: *c_int) [*c][*c]Finger {
    return c.SDL_GetTouchFingers(touchID, @ptrCast(count));
}