public FlxTilemap()
: base()
{
auto = OFF;
widthInTiles = 0;
heightInTiles = 0;
totalTiles = 0;
tileGraphic = null;
_rects = null;
_tiles = null;
_tileObjectsForDrawing = new List<FlxTile>();
_tileObjects = null;
_tileWidth = 0;
_tileHeight = 0;
immovable = true;
_block = new FlxObject();
_block.width = _block.height = 0;
_block.immovable = true;
_startingIndex = 0;
collideIndex = 1;
allowCollisions = ANY;
ID = 3;
}
/**
* Clean up memory.
*/
public void destroy()
{
Object = null;
if(next != null)
next.destroy();
next = null;
}
public FlxCamera(float X, float Y, float Width, float Height, float Zoom = 1.0f)
: base()
{
x = X;
y = Y;
width = Width;
height = Height;
defaultZoom = 1.0f;
rotating = 0.0f;
scroll = new FlxPoint();
_point = new FlxPoint();
target = null;
deadzone = null;
bounds = null;
zooming = Zoom;
_fxShakeIntensity = 0;
_fxShakeDuration = 0;
_fxShakeComplete = null;
_fxShakeOffset = new FlxPoint();
_fxShakeDirection = 0;
}
/// <summary>
/// The main collision resolution function
/// </summary>
/// <param name="Object1"></param>
/// <param name="Object2"></param>
/// <returns></returns>
public static bool separate(FlxObject Object1, FlxObject Object2)
{
bool separatedX = separateX(Object1,Object2);
bool separatedY = separateY(Object1,Object2);
return separatedX || separatedY;
}
/// <summary>
/// Returns true if the two FlxObjects overlap. Optional Callback function of return type bool with two FlxObject parameters will be called if true.
/// </summary>
/// <param name="ObjectOrGroup1"></param>
/// <param name="ObjectOrGroup2"></param>
/// <param name="NotifyCallback"></param>
/// <param name="ProcessCallback"></param>
/// <returns></returns>
public static Boolean overlap(FlxObject ObjectOrGroup1 = null, FlxObject ObjectOrGroup2 = null, Func<FlxObject, FlxObject, Boolean> NotifyCallback = null, Func<FlxObject, FlxObject, Boolean> ProcessCallback = null)
{
if(ObjectOrGroup1 == null)
ObjectOrGroup1 = FlxG.state;
if(ObjectOrGroup2 == ObjectOrGroup1)
ObjectOrGroup2 = null;
FlxQuadTree.divisions = FlxG.worldDivisions;
FlxQuadTree quadTree = new FlxQuadTree(FlxG.worldBounds.x,FlxG.worldBounds.y,FlxG.worldBounds.width,FlxG.worldBounds.height);
quadTree.load(ObjectOrGroup1,ObjectOrGroup2,NotifyCallback,ProcessCallback);
Boolean result = quadTree.execute();
quadTree.destroy();
return result;
}
/// <summary>
/// Returns true if the two FlxObjects collide. Optional callback function of return type bool with two FlxObject parameters will be called if true.
/// </summary>
/// <param name="ObjectOrGroup1"></param>
/// <param name="ObjectOrGroup2"></param>
/// <param name="NotifyCallback"></param>
/// <returns></returns>
public static Boolean collide(FlxObject ObjectOrGroup1 = null, FlxObject ObjectOrGroup2 = null, Func<FlxObject, FlxObject, Boolean> NotifyCallback = null)
{
return overlap(ObjectOrGroup1,ObjectOrGroup2,NotifyCallback,FlxObject.separate);
}
/// <summary>
/// Make the camera follow an object with a specified follow-style
/// </summary>
/// <param name="Target"></param>
/// <param name="Style"></param>
public void follow(FlxObject Target, uint Style=STYLE_LOCKON)
{
target = Target;
float helper, w, h;
switch (Style)
{
case STYLE_PLATFORMER:
w = width / 8;
h = height / 3;
deadzone = new FlxRect((width - w) / 2, (height - h) / 2 - h * 0.25f, w, h);
break;
case STYLE_TOPDOWN:
helper = FlxU.max(width, height) / 3;
deadzone = new FlxRect((width - helper) / 3, (height - helper) / 3, helper, helper);
break;
case STYLE_TOPDOWN_TIGHT:
helper = FlxU.max(width, height) / 12;
deadzone = new FlxRect((width - helper) / 2, (height - helper) / 2, helper, helper);
break;
case STYLE_LOCKON:
break;
case STYLE_LOOSE:
deadzone = new FlxRect(0, 0, width, height);
break;
default:
deadzone = null;
break;
}
}
/**
* Creates a new link, and sets <code>object</code> and <code>next</code> to <code>null</code>.
*/
public FlxList()
{
Object = null;
next = null;
}
protected void createSound()
{
destroy();
x = 0;
y = 0;
playCount = 0;
_sound = null;
_position = 0;
_volume = 1.0f;
_volumeAdjust = 1.0f;
_looped = false;
_target = null;
_source = null;
_radius = 0;
_pan = false;
_fadeOutTimer = 0;
_fadeOutTotal = 0;
_pauseOnFadeOut = false;
_fadeInTimer = 0;
_fadeInTotal = 0;
exists = true;
active = true;
visible = false;
name = null;
artist = null;
amplitude = 0;
amplitudeLeft = 0;
amplitudeRight = 0;
autoDestroy = false;
_followTarget = false;
proximitized = false;
}
/**
* Call this function if you want this sound's volume to change
* based on distance from a particular FlxCore object.
*
* @param X The X position of the sound.
* @param Y The Y position of the sound.
* @param Object The object you want to track.
* @param Radius The maximum distance this sound can travel.
* @param Pan Whether the sound should pan in addition to the volume changes (default: true).
*
* @return This FlxSound instance (nice for chaining stuff together, if you're into that).
*/
public FlxSound proximity(FlxObject Source, FlxObject Target, float Radius)
{
x = Source.x;
y = Source.y;
_target = Target;
_source = Source;
_radius = Radius;
_followTarget = true;
proximitized = true;
return this;
}
/**
* Clean up memory.
*/
public override void destroy()
{
kill();
//_transform = null;
_sound = null;
//_channel = null;
_target = null;
name = null;
artist = null;
base.destroy();
}
/**
* Change the emitter's midpoint to match the midpoint of a <code>FlxObject</code>.
*
* @param Object The <code>FlxObject</code> that you want to sync up with.
*/
public void at(FlxObject Object)
{
Object.getMidpoint(_point);
x = _point.x - (Convert.ToInt32(width)>>1);
y = _point.y - (Convert.ToInt32(height)>>1);
}
/**
* Creates a new <code>FlxEmitter</code> object at a specific position.
* Does NOT automatically generate or attach particles!
*
* @param X The X position of the emitter.
* @param Y The Y position of the emitter.
* @param Size Optional, specifies a maximum capacity for this emitter.
*/
public FlxEmitter(float X=0, float Y=0, uint Size=0, FlxObject Target=null)
: base(Size)
{
//super(Size);
x = X;
y = Y;
width = 0;
height = 0;
minParticleSpeed = new FlxPoint(-100,-100);
maxParticleSpeed = new FlxPoint(100,100);
minRotation = -360;
maxRotation = 360;
gravity = 0;
particleClass = null;
particleDrag = new FlxPoint();
frequency = 0.1f;
lifespan = 3;
bounce = 0;
_quantity = 0;
_counter = 0;
_explode = true;
on = false;
_point = new FlxPoint();
target = Target;
}
/// <summary>
/// X-axis component of the object separation process
/// </summary>
/// <param name="Object1"></param>
/// <param name="Object2"></param>
/// <returns></returns>
public static bool separateX(FlxObject Object1, FlxObject Object2)
{
//can't separate two immovable objects
bool obj1immovable = Object1.immovable;
bool obj2immovable = Object2.immovable;
if(obj1immovable && obj2immovable)
return false;
//If one of the objects is a tilemap, just pass it off.
if (Object1 is FlxTilemap)
return (Object1 as FlxTilemap).overlapsWithCallback(Object2, separateX);
if (Object2 is FlxTilemap)
return (Object2 as FlxTilemap).overlapsWithCallback(Object1, separateX, true);
//First, get the two object deltas
float overlap = 0;
float obj1delta = Object1.x - Object1.last.x;
float obj2delta = Object2.x - Object2.last.x;
if(obj1delta != obj2delta)
{
//Check if the X hulls actually overlap
float obj1deltaAbs = (obj1delta > 0) ? obj1delta : -obj1delta;
float obj2deltaAbs = (obj2delta > 0) ? obj2delta : -obj2delta;
FlxRect obj1rect = new FlxRect(Object1.x-((obj1delta > 0)?obj1delta:0),Object1.last.y,Object1.width+((obj1delta > 0)?obj1delta:-obj1delta),Object1.height);
FlxRect obj2rect = new FlxRect(Object2.x-((obj2delta > 0)?obj2delta:0),Object2.last.y,Object2.width+((obj2delta > 0)?obj2delta:-obj2delta),Object2.height);
if((obj1rect.x + obj1rect.width > obj2rect.x) && (obj1rect.x < obj2rect.x + obj2rect.width) && (obj1rect.y + obj1rect.height > obj2rect.y) && (obj1rect.y < obj2rect.y + obj2rect.height))
{
float maxOverlap = obj1deltaAbs + obj2deltaAbs + OVERLAP_BIAS;
//If they did overlap (and can), figure out by how much and flip the corresponding flags
if(obj1delta > obj2delta)
{
overlap = Object1.x + Object1.width - Object2.x;
if((overlap > maxOverlap) || !Convert.ToBoolean(Object1.allowCollisions & RIGHT) || !Convert.ToBoolean(Object2.allowCollisions & LEFT))
overlap = 0;
else
{
Object1.touching |= RIGHT;
Object2.touching |= LEFT;
}
}
else if(obj1delta < obj2delta)
{
overlap = Object1.x - Object2.width - Object2.x;
if((-overlap > maxOverlap) || !Convert.ToBoolean(Object1.allowCollisions & LEFT) || !Convert.ToBoolean(Object2.allowCollisions & RIGHT))
overlap = 0;
else
{
Object1.touching |= LEFT;
Object2.touching |= RIGHT;
}
}
}
}
//Then adjust their positions and velocities accordingly (if there was any overlap)
if(overlap != 0)
{
float obj1v = Object1.velocity.x;
float obj2v = Object2.velocity.x;
if(!obj1immovable && !obj2immovable)
{
overlap *= 0.5f;
Object1.x = Object1.x - overlap;
Object2.x += overlap;
float obj1velocity = (float)Math.Sqrt((obj2v * obj2v * Object2.mass) / Object1.mass) * ((obj2v > 0) ? 1f : -1f);
float obj2velocity = (float)Math.Sqrt((obj1v * obj1v * Object1.mass) / Object2.mass) * ((obj1v > 0) ? 1f : -1f);
float average = (obj1velocity + obj2velocity) * 0.5f;
obj1velocity -= average;
obj2velocity -= average;
Object1.velocity.x = average + obj1velocity * Object1.elasticity;
Object2.velocity.x = average + obj2velocity * Object2.elasticity;
}
else if(!obj1immovable)
{
Object1.x = Object1.x - overlap;
Object1.velocity.x = obj2v - obj1v*Object1.elasticity;
}
else if(!obj2immovable)
{
Object2.x += overlap;
Object2.velocity.x = obj1v - obj2v*Object2.elasticity;
}
return true;
}
else
return false;
}
// overlapsWithCallBack
public Boolean overlapsWithCallback(FlxObject Object, Func<FlxObject, FlxObject, Boolean> Callback=null, Boolean FlipCallbackParams=false, FlxPoint Position=null)
{
Boolean results = false;
float X = x;
float Y = y;
if (Position != null)
{
X = Position.x;
Y = Position.x;
}
//Figure out what tiles we need to check against
int selectionX = (int)FlxU.floor((Object.x - X) / _tileWidth);
int selectionY = (int)FlxU.floor((Object.y - Y) / _tileHeight);
uint selectionWidth = (uint)(selectionX + (FlxU.ceil((int)Object.width / _tileWidth)) + 2);
uint selectionHeight = (uint)(selectionY + (FlxU.ceil((int)Object.height / _tileHeight)) + 2);
//Then bound these coordinates by the map edges
if (selectionX < 0)
selectionX = 0;
if (selectionY < 0)
selectionY = 0;
if (selectionWidth > widthInTiles)
selectionWidth = (uint)widthInTiles;
if (selectionHeight > heightInTiles)
selectionHeight = (uint)heightInTiles;
//Then loop through this selection of tiles and call FlxObject.separate() accordingly
uint rowStart = (uint)selectionY * (uint)widthInTiles;
uint row = (uint)selectionY;
uint column;
FlxTile tile;
Boolean overlapFound;
float deltaX = X - last.x;
float deltaY = Y - last.y;
while (row < selectionHeight)
{
column = (uint)selectionX;
while (column < selectionWidth)
{
overlapFound = false;
tile = _tileObjects[(int)_data[(int)(rowStart+column)]] as FlxTile;
if ( Convert.ToBoolean(tile.allowCollisions) )
{
tile.x = X + (int)column * _tileWidth;
tile.y = Y + (int)row * _tileHeight;
tile.last.x = tile.x - deltaX;
tile.last.y = tile.y - deltaY;
if (Callback != null)
{
if (FlipCallbackParams)
overlapFound = Callback(Object, tile);
else
overlapFound = Callback(tile, Object);
}
else
{
overlapFound = (Object.x + Object.width > tile.x) && (Object.x < tile.x + tile.width) && (Object.y + Object.height > tile.y) && (Object.y < tile.y + tile.height);
}
if (overlapFound)
{
if ((tile.callback != null))
{
tile.mapIndex = (uint)rowStart + column;
tile.callback(tile, Object);
}
results = true;
}
}
else if ((tile.callback != null))
{
tile.mapIndex = (uint)rowStart + (uint)column;
tile.callback(tile, Object);
}
column++;
}
rowStart += (uint)widthInTiles;
row++;
}
return results;
}
/// <summary>
/// Y-axis component of the object separation process
/// </summary>
/// <param name="Object1"></param>
/// <param name="Object2"></param>
/// <returns></returns>
public static bool separateY(FlxObject Object1, FlxObject Object2)
{
//can't separate two immovable objects
bool obj1immovable = Object1.immovable;
bool obj2immovable = Object2.immovable;
if(obj1immovable && obj2immovable)
return false;
////If one of the objects is a tilemap, just pass it off.
if (Object1 is FlxTilemap)
return (Object1 as FlxTilemap).overlapsWithCallback(Object2, separateY);
if (Object2 is FlxTilemap)
return (Object2 as FlxTilemap).overlapsWithCallback(Object1, separateY, true);
//First, get the two object deltas
float overlap = 0;
float obj1delta = Object1.y - Object1.last.y;
float obj2delta = Object2.y - Object2.last.y;
if(obj1delta != obj2delta)
{
//Check if the Y hulls actually overlap
float obj1deltaAbs = (obj1delta > 0) ? obj1delta : -obj1delta;
float obj2deltaAbs = (obj2delta > 0) ? obj2delta : -obj2delta;
FlxRect obj1rect = new FlxRect(Object1.x,Object1.y-((obj1delta > 0)?obj1delta:0),Object1.width,Object1.height+obj1deltaAbs);
FlxRect obj2rect = new FlxRect(Object2.x,Object2.y-((obj2delta > 0)?obj2delta:0),Object2.width,Object2.height+obj2deltaAbs);
if((obj1rect.x + obj1rect.width > obj2rect.x) && (obj1rect.x < obj2rect.x + obj2rect.width) && (obj1rect.y + obj1rect.height > obj2rect.y) && (obj1rect.y < obj2rect.y + obj2rect.height))
{
float maxOverlap = obj1deltaAbs + obj2deltaAbs + OVERLAP_BIAS;
//If they did overlap (and can), figure out by how much and flip the corresponding flags
if(obj1delta > obj2delta)
{
overlap = Object1.y + Object1.height - Object2.y;
if((overlap > maxOverlap) || !Convert.ToBoolean(Object1.allowCollisions & DOWN) || !Convert.ToBoolean(Object2.allowCollisions & UP))
overlap = 0;
else
{
Object1.touching |= DOWN;
Object2.touching |= UP;
}
}
else if(obj1delta < obj2delta)
{
overlap = Object1.y - Object2.height - Object2.y;
if((-overlap > maxOverlap) || !Convert.ToBoolean(Object1.allowCollisions & UP) || !Convert.ToBoolean(Object2.allowCollisions & DOWN))
overlap = 0;
else
{
Object1.touching |= UP;
Object2.touching |= DOWN;
}
}
}
}
//Then adjust their positions and velocities accordingly (if there was any overlap)
if(overlap != 0)
{
float obj1v = Object1.velocity.y;
float obj2v = Object2.velocity.y;
if(!obj1immovable && !obj2immovable)
{
overlap *= 0.5f;
Object1.y = Object1.y - overlap;
Object2.y += overlap;
float obj1velocity = (float)Math.Sqrt((obj2v * obj2v * Object2.mass) / Object1.mass) * ((obj2v > 0) ? 1f : -1f);
float obj2velocity = (float)Math.Sqrt((obj1v * obj1v * Object1.mass) / Object2.mass) * ((obj1v > 0) ? 1f : -1f);
float average = (obj1velocity + obj2velocity) * 0.5f;
obj1velocity -= average;
obj2velocity -= average;
Object1.velocity.y = average + obj1velocity * Object1.elasticity;
Object2.velocity.y = average + obj2velocity * Object2.elasticity;
}
else if(!obj1immovable)
{
Object1.y = Object1.y - overlap;
Object1.velocity.y = obj2v - obj1v*Object1.elasticity;
//This is special case code that handles cases like horizontal moving platforms you can ride
if(Object2.active && Object2.moves && (obj1delta > obj2delta))
Object1.x += Object2.x - Object2.last.x;
}
else if(!obj2immovable)
{
Object2.y += overlap;
Object2.velocity.y = obj1v - obj2v*Object2.elasticity;
//This is special case code that handles cases like horizontal moving platforms you can ride
if(Object1.active && Object1.moves && (obj1delta < obj2delta))
Object2.x += Object1.x - Object1.last.x;
}
return true;
}
else
return false;
}
// overlapsWithCallBack
public Boolean overlapsWithCallback(FlxObject Object, Func <FlxObject, FlxObject, Boolean> Callback = null, Boolean FlipCallbackParams = false, FlxPoint Position = null)
{
Boolean results = false;
float X = base.X;
float Y = base.Y;
if (Position != null)
{
X = Position.X;
Y = Position.X;
}
//Figure out what tiles we need to check against
int selectionX = (int)FlxU.floor((Object.X - X) / _tileWidth);
int selectionY = (int)FlxU.floor((Object.Y - Y) / _tileHeight);
uint selectionWidth = (uint)(selectionX + (FlxU.ceil((int)Object.Width / _tileWidth)) + 2);
uint selectionHeight = (uint)(selectionY + (FlxU.ceil((int)Object.Height / _tileHeight)) + 2);
//Then bound these coordinates by the map edges
if (selectionX < 0)
{
selectionX = 0;
}
if (selectionY < 0)
{
selectionY = 0;
}
if (selectionWidth > widthInTiles)
{
selectionWidth = (uint)widthInTiles;
}
if (selectionHeight > heightInTiles)
{
selectionHeight = (uint)heightInTiles;
}
//Then loop through this selection of tiles and call FlxObject.separate() accordingly
uint rowStart = (uint)selectionY * (uint)widthInTiles;
uint row = (uint)selectionY;
uint column;
FlxTile tile;
Boolean overlapFound;
float deltaX = X - Last.X;
float deltaY = Y - Last.Y;
while (row < selectionHeight)
{
column = (uint)selectionX;
while (column < selectionWidth)
{
overlapFound = false;
tile = _tileObjects[(int)_data[(int)(rowStart + column)]] as FlxTile;
if (Convert.ToBoolean(tile.AllowCollisions))
{
tile.X = X + (int)column * _tileWidth;
tile.Y = Y + (int)row * _tileHeight;
tile.Last.X = tile.X - deltaX;
tile.Last.Y = tile.Y - deltaY;
if (Callback != null)
{
if (FlipCallbackParams)
{
overlapFound = Callback(Object, tile);
}
else
{
overlapFound = Callback(tile, Object);
}
}
else
{
overlapFound = (Object.X + Object.Width > tile.X) && (Object.X < tile.X + tile.Width) && (Object.Y + Object.Height > tile.Y) && (Object.Y < tile.Y + tile.Height);
}
if (overlapFound)
{
if ((tile.callback != null))
{
tile.mapIndex = (uint)rowStart + column;
tile.callback(tile, Object);
}
results = true;
}
}
else if ((tile.callback != null))
{
tile.mapIndex = (uint)rowStart + (uint)column;
tile.callback(tile, Object);
}
column++;
}
rowStart += (uint)widthInTiles;
row++;
}
return(results);
}
