static Cam2d()
{
restrictions_low = new crds4(0f, 0f, 0f, 30f);
restrictions_high = new crds4(200f, 200f, 0f, 300f);
current = _target = new crds4(100f, 100f, 0f, 100f);
set_angle(60);
}
public static void encompass(crds2 hi_extr, crds2 lo_extr, float zoom_factor = 1f)
{
var c = (hi_extr + lo_extr) * 0.5f;
var dhor = XMath.abs((hi_extr - lo_extr).x);
var dver = XMath.abs((hi_extr - lo_extr).y);
if (dhor < 1f) dhor = 1f;
if (dver < 1f) dver = 1f;
var aspect = dhor / dver;
var screen_aspect = (float)Graphics.screen_w / Graphics.screen_h;
var desired_zoom = 1f;
if (aspect > screen_aspect) // width rules
desired_zoom = (float)Graphics.screen_w / dhor;
else // height rules
desired_zoom = (float)Graphics.screen_h / dver;
_target = new crds4(c.x, c.y, 0f, desired_zoom * zoom_factor);
current = _target;
delta = default(crds4);
raise_restrictions();
}
public shader_param_float4(string name, crds4 value)
{
this.name = name;
this.value = value;
}
public static void force(crds3 c, float desired_zoom)
{
_target.x = c.x;
_target.y = c.y;
_target.z = c.z;
_target.w = desired_zoom;
current = _target;
}
public static void raise_restrictions()
{
restrictions_low = new crds4(float.MinValue, float.MinValue, float.MinValue, float.MinValue);
restrictions_high = new crds4(float.MaxValue, float.MaxValue, float.MaxValue, float.MaxValue);
}
public static void on_tick()
{
current += delta;
_target.x = _target.x.choke(restrictions_low.x, restrictions_high.x);
_target.y = _target.y.choke(restrictions_low.y, restrictions_high.y);
_target.z = _target.z.choke(restrictions_low.z, restrictions_high.z);
_target.w = _target.w.choke(restrictions_low.w, restrictions_high.w);
delta = _target - current;
if (delta.lenght > update_speed) delta *= update_speed;
}
