private void constructor1(float X, float Y, float Width, float Height)
{
x = X;
y = Y;
width = Width;
height = Height;
exists = true;
active = true;
visible = true;
_solid = true;
_fixed = false;
moves = true;
collideLeft = true;
collideRight = true;
collideTop = true;
collideBottom = true;
_origin = Vector2.Zero;
velocity = Vector2.Zero;
acceleration = Vector2.Zero;
drag = Vector2.Zero;
maxVelocity = new Vector2(10000, 10000);
angle = 0;
angularVelocity = 0;
angularAcceleration = 0;
angularDrag = 0;
maxAngular = 10000;
thrust = 0;
scrollFactor = new Vector2(1, 1);
_flicker = false;
_flickerTimer = -1;
health = 1;
dead = false;
_point = Vector2.Zero;
_rect = Rectangle.Empty;
_flashPoint = Vector2.Zero;
colHullX = FlxRect.Empty;
colHullY = FlxRect.Empty;
colVector = Vector2.Zero;
colOffsets.Add(Vector2.Zero);
_group = false;
}
/**
* This quad tree callback function can be used externally as well.
* Takes two objects and separates them along their Y axis (if possible/reasonable).
*
* @param Object1 The first object or group you want to check.
* @param Object2 The second object or group you want to check.
*/
static public bool solveYCollision(object sender, FlxSpriteCollisionEvent e)
{
//Avoid messed up collisions ahead of time
float o1 = e.Object1.colVector.Y;
float o2 = e.Object2.colVector.Y;
if (o1 == o2)
{
return(false);
}
//Give the objects a heads up that we're about to resolve some collisions
e.Object1.preCollide(e.Object2);
e.Object2.preCollide(e.Object1);
//Basic resolution variables
bool f1;
bool f2;
float overlap;
bool hit = false;
bool p1hn2;
//Directional variables
bool obj1Stopped = o1 == 0;
bool obj1MoveNeg = o1 < 0;
bool obj1MovePos = o1 > 0;
bool obj2Stopped = o2 == 0;
bool obj2MoveNeg = o2 < 0;
bool obj2MovePos = o2 > 0;
//Offset loop variables
int i1;
int i2;
FlxRect obj1Hull = e.Object1.colHullY;
FlxRect obj2Hull = e.Object2.colHullY;
List <Vector2> co1 = e.Object1.colOffsets;
List <Vector2> co2 = e.Object2.colOffsets;
int l1 = co1.Count;
int l2 = co2.Count;
float ox1;
float oy1;
float ox2;
float oy2;
float r1;
float r2;
float sv1;
float sv2;
//Decide based on object's movement patterns if it was a top or bottom collision
p1hn2 = ((obj1Stopped && obj2MoveNeg) || (obj1MovePos && obj2Stopped) || (obj1MovePos && obj2MoveNeg) || //the obvious cases
(obj1MoveNeg && obj2MoveNeg && (((o1 > 0)?o1:-o1) < ((o2 > 0)?o2:-o2))) || //both moving up, obj2 overtakes obj1
(obj1MovePos && obj2MovePos && (((o1 > 0)?o1:-o1) > ((o2 > 0)?o2:-o2)))); //both moving down, obj1 overtakes obj2
//Check to see if these objects allow these collisions
if (p1hn2 ? (!e.Object1.collideBottom || !e.Object2.collideTop) : (!e.Object1.collideTop || !e.Object2.collideBottom))
{
return(false);
}
//this looks insane, but we're just looping through collision offsets on each object
i1 = 0;
while (i1 < l1)
{
ox1 = co1[i1].X;
oy1 = co1[i1].Y;
obj1Hull.x += ox1;
obj1Hull.y += oy1;
i2 = 0;
while (i2 < l2)
{
ox2 = co2[i2].X;
oy2 = co2[i2].Y;
obj2Hull.x += ox2;
obj2Hull.y += oy2;
//See if it's a actually a valid collision
if ((obj1Hull.x + obj1Hull.width < obj2Hull.x + roundingError) ||
(obj1Hull.x + roundingError > obj2Hull.x + obj2Hull.width) ||
(obj1Hull.y + obj1Hull.height < obj2Hull.y + roundingError) ||
(obj1Hull.y + roundingError > obj2Hull.y + obj2Hull.height))
{
obj2Hull.x = obj2Hull.x - ox2;
obj2Hull.y = obj2Hull.y - oy2;
i2++;
continue;
}
//Calculate the overlap between the objects
if (p1hn2)
{
if (obj1MoveNeg)
{
r1 = obj1Hull.y + e.Object1.colHullX.height;
}
else
{
r1 = obj1Hull.y + obj1Hull.height;
}
if (obj2MoveNeg)
{
r2 = obj2Hull.y;
}
else
{
r2 = obj2Hull.y + obj2Hull.height - e.Object2.colHullX.height;
}
}
else
{
if (obj2MoveNeg)
{
r1 = -obj2Hull.y - e.Object2.colHullX.height;
}
else
{
r1 = -obj2Hull.y - obj2Hull.height;
}
if (obj1MoveNeg)
{
r2 = -obj1Hull.y;
}
else
{
r2 = -obj1Hull.y - obj1Hull.height + e.Object1.colHullX.height;
}
}
overlap = r1 - r2;
//if (overlap > -0.00008f && overlap < 0.00008f)
//{
// i2++;
// continue;
//}
//Slightly smarter version of checking if objects are 'fixed' in space or not
f1 = e.Object1.@fixed;
f2 = e.Object2.@fixed;
if (f1 && f2)
{
f1 &= (e.Object1.colVector.X == 0) && (o1 == 0);
f2 &= (e.Object2.colVector.X == 0) && (o2 == 0);
}
//Last chance to skip out on a bogus collision resolution
if ((overlap == 0) ||
((!f1 && ((overlap > 0)?overlap:-overlap) > obj1Hull.height * 0.8)) ||
((!f2 && ((overlap > 0)?overlap:-overlap) > obj2Hull.height * 0.8)))
{
obj2Hull.x = obj2Hull.x - ox2;
obj2Hull.y = obj2Hull.y - oy2;
i2++;
continue;
}
hit = true;
//Adjust the objects according to their flags and stuff
sv1 = e.Object2.velocity.Y;
sv2 = e.Object1.velocity.Y;
if (!f1 && f2)
{
if (e.Object1._group)
{
e.Object1.reset(e.Object1.x, (e.Object1.y - overlap));
}
else
{
e.Object1.y = e.Object1.y - overlap;
}
}
else if (f1 && !f2)
{
if (e.Object2._group)
{
e.Object2.reset(e.Object2.x, (e.Object2.y + overlap));
}
else
{
e.Object2.y += overlap;
}
}
else if (!f1 && !f2)
{
overlap /= 2;
if (e.Object1._group)
{
e.Object1.reset(e.Object1.x, (e.Object1.y - overlap));
}
else
{
e.Object1.y = e.Object1.y - overlap;
}
if (e.Object2._group)
{
e.Object2.reset(e.Object2.x, (e.Object2.y + overlap));
}
else
{
e.Object2.y += overlap;
}
sv1 *= 0.5f;
sv2 *= 0.5f;
}
if (p1hn2)
{
e.Object1.hitBottom(e.Object2, sv1);
e.Object2.hitTop(e.Object1, sv2);
}
else
{
e.Object1.hitTop(e.Object2, sv1);
e.Object2.hitBottom(e.Object1, sv2);
}
//Adjust collision hulls if necessary
if (!f1 && (overlap != 0))
{
if (p1hn2)
{
obj1Hull.y = obj1Hull.y - overlap;
//This code helps stuff ride horizontally moving platforms.
if (f2 && e.Object2.moves)
{
sv1 = e.Object2.colVector.X;
e.Object1.x += sv1;
obj1Hull.x += sv1;
e.Object1.colHullX.x += sv1;
}
}
else
{
obj1Hull.y = obj1Hull.y - overlap;
obj1Hull.height += overlap;
}
}
if (!f2 && (overlap != 0))
{
if (p1hn2)
{
obj2Hull.y += overlap;
obj2Hull.height = obj2Hull.height - overlap;
}
else
{
obj2Hull.height += overlap;
//This code helps stuff ride horizontally moving platforms.
if (f1 && e.Object1.moves)
{
sv2 = e.Object1.colVector.X;
e.Object2.x += sv2;
obj2Hull.x += sv2;
e.Object2.colHullX.x += sv2;
}
}
}
obj2Hull.x = obj2Hull.x - ox2;
obj2Hull.y = obj2Hull.y - oy2;
i2++;
}
obj1Hull.x = obj1Hull.x - ox1;
obj1Hull.y = obj1Hull.y - oy1;
i1++;
}
return(hit);
}
private void constructor1(float X, float Y, float Width, float Height)
{
x = X;
y = Y;
width = Width;
height = Height;
exists = true;
active = true;
visible = true;
_solid = true;
_fixed = false;
moves = true;
collideLeft = true;
collideRight = true;
collideTop = true;
collideBottom = true;
_origin = Vector2.Zero;
velocity = Vector2.Zero;
acceleration = Vector2.Zero;
drag = Vector2.Zero;
maxVelocity = new Vector2(10000, 10000);
angle = 0;
angularVelocity = 0;
angularAcceleration = 0;
angularDrag = 0;
maxAngular = 10000;
thrust = 0;
scrollFactor = new Vector2(1, 1);
_flicker = false;
_flickerTimer = -1;
health = 1;
dead = false;
_point = Vector2.Zero;
_rect = Rectangle.Empty;
_flashPoint = Vector2.Zero;
colHullX = FlxRect.Empty;
colHullY = FlxRect.Empty;
colVector = Vector2.Zero;
colOffsets.Add(Vector2.Zero);
_group = false;
}
