//accelerations ------------------------------------------------
public Character Attraction(Poles pole, Character player)
{
//Constants.ATTRACTION
//pulled towards a pole
if (player.Charge != 0 && pole.Charge == -(player.Charge))
{
// calculate x,y distances between player and pole
int xDis = pole.XPos - player.XPos + 70;
int yDis = pole.YPos - player.YPos + Constants.TILE_HEIGHT;
// find third side of triangle based on calculated distances
double tDis = Math.Sqrt(Math.Pow(xDis, 2) + Math.Pow(yDis, 2));
// scale the distances based on the attraction factor
double scale = Constants.ATTRACTION / tDis;
// use scale and calculated distances to get how much the player accelerates
double sX = Math.Abs((scale * xDis));
double sY = Math.Abs((scale * yDis));
// use calulated acceleration to change player's speed
if (player.XPos > (pole.XPos + Constants.TILE_WIDTH))
{
player.XSpeed -= (int)(sX);
}
else if ((player.XPos + Constants.TILE_WIDTH) < pole.XPos)
{
player.XSpeed += (int)(sX);
}
if (player.YPos > (pole.YPos + Constants.TILE_HEIGHT))
{
player.YSpeed -= (int)(sY);
}
else if ((player.YPos + Constants.TILE_HEIGHT) < pole.YPos)
{
player.YSpeed += (int)(sY);
}
}
return player;
}
public List<Poles> SetPoles()
{
//AF- Adding positive poles to list
for (int i = 0; i < Constants.ARRAYY; i++)
{
for (int j = 0; j < Constants.ARRAYX; j++)
{
if (position[i, j] == '+')
{
Poles p = new Poles(1, j * Constants.GRIDPOSITION, i * Constants.GRIDPOSITION);
poles.Add(p);
}
}
}
//AF - Add negative Poles
for (int i = 0; i < Constants.ARRAYY; i++)
{
for (int j = 0; j < Constants.ARRAYX; j++)
{
if (position[i, j] == '-')
{
Poles p = new Poles(-1, j * Constants.GRIDPOSITION, i * Constants.GRIDPOSITION);
poles.Add(p);
}
}
}
return poles;
}
//Create a method that will make the player orbit clockwise around the pole
public void Orbit(Poles pole, Character player)
{
//Pole rectangle
Rectangle poleRect = new Rectangle(pole.XPos, pole.YPos, Constants.TILE_WIDTH, Constants.TILE_HEIGHT);
//Player rectangle
Rectangle playerRect = new Rectangle(player.XPos, player.YPos, Constants.TILE_WIDTH, Constants.TILE_HEIGHT);
//Calculate the center points of pole and player
double centerOfPlayerX = (playerRect.Width / 2) + playerRect.X;
double centerOfPlayerY = (playerRect.Height / 2) + playerRect.Y;
double centerOfPoleX = (poleRect.Width / 2) + poleRect.X;
double centerOfPoleY = (poleRect.Height / 2) + poleRect.Y;
//Calculate the radius of the rotation
if (counter == 0)
{
//When x and y are positive
if (centerOfPlayerY > centerOfPoleY && centerOfPlayerX > centerOfPoleX)
{
//Use pyrathogram theorem
radiusOfRotation = Math.Sqrt((Math.Pow((centerOfPlayerX - centerOfPoleX), 2) +
Math.Pow((centerOfPlayerY - centerOfPoleY), 2)));
}
//When x is positve, but y is negative
else if (centerOfPoleY > centerOfPlayerY && centerOfPlayerX > centerOfPoleX)
{
//Use pyrathogram theorem
radiusOfRotation = Math.Sqrt((Math.Pow((centerOfPlayerX - centerOfPoleX), 2) +
Math.Pow((centerOfPoleY - centerOfPlayerY), 2)));
}
//When x and y are negative
else if (centerOfPoleY > centerOfPlayerY && centerOfPoleX > centerOfPlayerX)
{
//Use pyrathogram theorem
radiusOfRotation = Math.Sqrt((Math.Pow((centerOfPoleX - centerOfPlayerX), 2) +
Math.Pow((centerOfPoleY - centerOfPlayerY), 2)));
}
//When x is negative but y is positive
else if (centerOfPlayerY > centerOfPoleY && centerOfPoleX > centerOfPlayerX)
{
//Use pyrathogram theorem
radiusOfRotation = Math.Sqrt((Math.Pow((centerOfPoleX - centerOfPlayerX), 2) +
Math.Pow((centerOfPlayerY - centerOfPoleY), 2)));
}
//Account for 90, 180, 270, 360 angle degrees
//If 90 degrees
else if (centerOfPlayerX == centerOfPoleX && centerOfPlayerY < centerOfPoleY)
{
//Use pyrathogram theorem
radiusOfRotation = Math.Sqrt((Math.Pow((centerOfPoleX), 2) +
Math.Pow((centerOfPoleY - centerOfPlayerY), 2)));
}
//If 180 degrees
else if (centerOfPlayerY == centerOfPoleY && centerOfPlayerX < centerOfPoleX)
{
//Use pyrathogram theorem
radiusOfRotation = Math.Sqrt((Math.Pow((centerOfPoleX - centerOfPlayerX), 2) +
Math.Pow((centerOfPoleY), 2)));
}
//If 270 degrees
else if (centerOfPlayerX == centerOfPoleX && centerOfPlayerY > centerOfPoleY)
{
//Use pyrathogram theorem
radiusOfRotation = Math.Sqrt((Math.Pow((centerOfPoleX), 2) +
Math.Pow((centerOfPlayerY - centerOfPoleY), 2)));
}
//If 360 degrees
else if (centerOfPlayerY == centerOfPoleY && centerOfPlayerX > centerOfPoleX)
{
//Use pyrathogram theorem
radiusOfRotation = Math.Sqrt((Math.Pow((centerOfPlayerX - centerOfPoleX), 2) +
Math.Pow((centerOfPoleY), 2)));
}
}
//Calculate the player's angle and set it
player.Angle = Rotate(pole, player, Constants.ROTATION_SPEED);
//Calculate the attractive force between player and pole to find the new x and y coordinates for the player
double attractiveForceX = Math.Sin(player.Angle) * radiusOfRotation + centerOfPoleX;
double attractiveForceY = Math.Cos(player.Angle) * radiusOfRotation + centerOfPoleY;
//Set the new x and y coordinates of the player to the attractive force
player.XPos = (int)attractiveForceX - playerRect.Width / 2;
player.YPos = (int)attractiveForceY - playerRect.Height / 2;
}
//Create a method that will make the player orbit counter clockwise around the pole
public double Rotate(Poles pole, Character player, double angleChange)
{
//Pole rectangle
Rectangle poleRect = new Rectangle(pole.XPos, pole.YPos, Constants.TILE_WIDTH, Constants.TILE_HEIGHT);
//Player rectangle
Rectangle playerRect = new Rectangle(player.XPos, player.YPos, Constants.TILE_WIDTH, Constants.TILE_HEIGHT);
//Calculate the center points of pole and player
double centerOfPlayerX = (playerRect.Width / 2) + playerRect.X;
double centerOfPlayerY = (playerRect.Height / 2) + playerRect.Y;
double centerOfPoleX = (poleRect.Width / 2) + poleRect.X;
double centerOfPoleY = (poleRect.Height / 2) + poleRect.Y;
//Calculate the angle for each quadrant only once
if (counter == 0)
{
//When x and y are positive
if (centerOfPlayerY > centerOfPoleY && centerOfPlayerX > centerOfPoleX)
{
//Calculate angle
player.Angle = Math.Atan((centerOfPlayerY - centerOfPoleY) / (centerOfPlayerX - centerOfPoleX));
}
//When x is positve, but y is negative
else if (centerOfPoleY > centerOfPlayerY && centerOfPlayerX > centerOfPoleX)
{
player.Angle = Math.Atan((centerOfPoleY - centerOfPlayerY) / (centerOfPlayerX - centerOfPoleX));
}
//When x and y are negative
else if (centerOfPoleY > centerOfPlayerY && centerOfPoleX > centerOfPlayerX)
{
player.Angle = Math.Atan((centerOfPoleY - centerOfPlayerY) / (centerOfPoleX - centerOfPlayerX));
}
//When x is negative but y is positive
else if (centerOfPlayerY > centerOfPoleY && centerOfPoleX > centerOfPlayerX)
{
player.Angle = Math.Atan((centerOfPlayerY - centerOfPoleY) / (centerOfPoleX - centerOfPlayerX));
}
//Account for 90, 180, 270, 360 angle degrees
//If 90 degrees
else if (centerOfPlayerX == centerOfPoleX && centerOfPlayerY < centerOfPoleY)
{
player.Angle = 90;
}
//If 180 degrees
else if (centerOfPlayerY == centerOfPoleY && centerOfPlayerX < centerOfPoleX)
{
player.Angle = 180;
}
//If 270 degrees
else if (centerOfPlayerX == centerOfPoleX && centerOfPlayerY > centerOfPoleY)
{
player.Angle = 270;
}
//If 360 degrees
else if (centerOfPlayerY == centerOfPoleY && centerOfPlayerX > centerOfPoleX)
{
player.Angle = 360;
}
//Incerement counter
counter++;
}
if (counter > 0)
{
//Increment the angle over time
player.Angle += angleChange;
//If the angle goes over 360 then mod it to make it zero again
if (player.Angle > double.MaxValue - 360000)
{
player.Angle = player.Angle % double.MaxValue - 360000;
}
}
return player.Angle;
}
//Create a method that will repel the character from a pole if they have the same charge
public void Repulsion(Poles pole, Character player)
{
//If the player charge is not neutral and the pole and player charge are the same
if (player.Charge != 0 && pole.Charge == player.Charge)
{
//Change the player's position based on what quadrant they are in
//0 or 360 degree
if (player.XPos > pole.XPos)
{
//Increase the player's x speed
player.XSpeed += Constants.REPULSION;
}
//If 180
else if (player.XPos < pole.XPos)
{
//Decrease the player's x speed
player.XSpeed -= Constants.REPULSION;
}
//If 90 degree
if (player.YPos < pole.YPos)
{
//Decrease the player's y speed
player.YSpeed -= Constants.REPULSION;
}
//If 270
else if (player.YPos > pole.YPos)
{
//Increase the player's y speed
player.YSpeed += Constants.REPULSION;
}
}
}
public bool PoleCollision(Poles pole, Character player)
{
// check if player is touching a pole
Rectangle po = new Rectangle(pole.XPos, pole.YPos, Constants.TILE_WIDTH, Constants.TILE_HEIGHT);
Rectangle pl = new Rectangle(player.XPos, player.YPos, Constants.TILE_WIDTH, Constants.TILE_HEIGHT);
if (po.Intersects(pl))
{
return true;
}
else { return false; }
}
protected override void Update(GameTime gameTime)
{
// Allows the game to exit
if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
this.Exit();
// TODO: Add your update logic here
kbState = Keyboard.GetState();
#region Song stuff
// play the current song
if (playing == false)
{
currentSong.Play();
songTime = 0;
playing = true;
}
// increment song timer
songTime += gameTime.ElapsedGameTime.TotalMilliseconds;
// upon completing the song, pick a new one
if (songTime >= (currentSong.Duration.TotalMilliseconds - Constants.SONG_OFFSET))
{
playing = false;
if (currentSong == sounds["long collision"])
{
nextSong = ranSong.Next(7);
switch (nextSong)
{
#region switch songs
case 0:
currentSong = sounds["base"];
break;
case 1:
currentSong = sounds["base"];
break;
case 2:
currentSong = sounds["pious"];
break;
case 3:
currentSong = sounds["rising"];
break;
case 4:
currentSong = sounds["mta"];
break;
case 5:
currentSong = sounds["faster"];
break;
case 6:
currentSong = sounds["alchemist"];
break;
#endregion
}
}
else
{
currentSong = sounds["long collision"];
}
}
#endregion
switch (gameState)
{
#region Case: Title
case GameState.Title: // title splash
if (this.SingleKeyPress(Keys.Enter))
{
// start the game
CheckLevelCount();
currentLevel = 1;
gameState = GameState.Map;
}
break;
#endregion
#region Case: Map
case GameState.Map:
// update the level selector
levelSelect.Update(kbState, prevKBState);
// get changed level info
currentLevel = levelSelect.currentLevel;
maxLevel = levelSelect.maxLevel;
// select a level
if (SingleKeyPress(Keys.Enter) && levelSelect.screenState == LevelSelect.ScreenState.Select)
{
// check if previous level has been cleared, or if is LV1
if (currentLevel == 1 || (currentLevel > 1 && levelSelect.cleared[currentLevel - 1]))
{
gameState = GameState.Load;
}
}
// return to the title
else if (SingleKeyPress(Keys.S))
{
levelSelect.screenState = LevelSelect.ScreenState.Select;
gameState = GameState.Title;
}
// view the high scores
else if (SingleKeyPress(Keys.Q))
{
gameState = GameState.HighScores;
}
// enter the map editor
else if (SingleKeyPress(Keys.Space))
{
gameState = GameState.Edit;
}
break;
#endregion
#region Case: Load
case GameState.Load: // load selected level
// make a new loader
levelLoader = new LevelLoader();
// load the file
levelLoader.Load(currentLevel + ".txt");
// set locations based on file
player = levelLoader.SetStart(player);
goal = levelLoader.SetFinish(goal);
walls = levelLoader.SetWalls();
poles = levelLoader.SetPoles();
balloons = levelLoader.SetBalloons();
//setting the animation variable in the balloons
//they get their own animation because they need to act independantly
for (int i = 0; i < balloons.Count; i++)
{
balloons[i].Anim = new Animation(GraphicsDevice, spriteBatch, 5, 100,images["balloon"]);
}
// reset player
player.XSpeed = Constants.START_SPEED;
player.YSpeed = Constants.START_SPEED;
player.Angle = Constants.START_ANGLE;
player.Charge = 0;
// start the level
gameState = GameState.Level;
//reseting the timer
totalSecs = 0;
totalMins = 0;
totalMils = 0;
// set random level background
int num = ranSong.Next(4);
switch (num)
{
#region switch bkg
case 0:
if (levelSelect.cleared[currentLevel] == false)
{
images["active"] = images["r1_dark"];
}
else
{
images["active"] = images["r1_light"];
}
break;
case 1:
if (levelSelect.cleared[currentLevel] == false)
{
images["active"] = images["r2_dark"];
}
else
{
images["active"] = images["r2_light"];
}
break;
case 2:
if (levelSelect.cleared[currentLevel] == false)
{
images["active"] = images["r3_dark"];
}
else
{
images["active"] = images["r3_light"];
}
break;
case 3:
if (levelSelect.cleared[currentLevel] == false)
{
images["active"] = images["r4_dark"];
}
else
{
images["active"] = images["r4_light"];
}
break;
#endregion
}
// check for 'boss level'
if (currentLevel == 7 && levelSelect.cleared[7] == false)
{
images["active"] = images["lvl7_dark"];
}
else if (currentLevel == 7 && levelSelect.cleared[7])
{
images["active"] = images["lvl7_light"];
}
break;
#endregion
#region Case: Pause
case GameState.Pause: // pause menu
if (this.SingleKeyPress(Keys.Enter))
{
// unpause the game
gameState = GameState.Level;
}
else if (this.SingleKeyPress(Keys.A))
{
// reset the level (reload)
gameState = GameState.Load;
}
else if (this.SingleKeyPress(Keys.D))
{
// return to the map
gameState = GameState.Map;
}
break;
#endregion
#region Case: Level
case GameState.Level: // play the level
//setting the old position
tail3.prevLocation = new Rectangle((tail2.prevLocation.X + 6), (tail2.prevLocation.Y + 6),
12, 12);
tail2.prevLocation = new Rectangle((tail1.prevLocation.X + 12), (tail1.prevLocation.Y + 12),
25, 25);
tail1.prevLocation = new Rectangle(player.PrevLocation.X, player.PrevLocation.Y, 50, 50);
player.PrevLocation = new Rectangle(player.XPos, player.YPos, 50, 50);
// timer stuff
totalSecs += gameTime.ElapsedGameTime.TotalSeconds;
totalMins += gameTime.ElapsedGameTime.TotalMinutes;
totalMils += gameTime.ElapsedGameTime.TotalMilliseconds;
#region pause the level
if (this.SingleKeyPress(Keys.Enter))
{
gameState = GameState.Pause;
}
#endregion
#region check if the player has completed the level
else if (playerRect.Intersects(goalRect))
{
//adding to the score
levelScore = String.Format("{0:0.00}", totalSecs);
if (getScore.ScoreList.ContainsKey(currentLevel))
{
getScore.ScoreList[currentLevel] = totalSecs - (balloonPop*.5);
}
else
{
getScore.ScoreList.Add(currentLevel, totalSecs - (balloonPop*.5));
}
//HM: making it pause for a second so people can see the lightbulb glow :)
Thread.Sleep(1000);
if (currentLevel+1 == maxLevel)
{
for (int i = 1; i <= getScore.ScoreList.Count(); i++)
{
endScore += getScore.ScoreList[i];
}
totalScore = String.Format("{0:0.00}", endScore);
getScore.WriteScores("HighScores.txt");
gameState = GameState.GameFinish;
}
else
{
gameState = GameState.LevelComplete;
}
}
#endregion
#region orbiting
else if (orbitState != OrbitState.None)
{
#region instances for when player is leaving orbit
if (SingleKeyPress(Keys.A) && player.Charge != 1)
{
player.Charge = 1;
orbitState = OrbitState.None;
}
else if (SingleKeyPress(Keys.S))
{
player.Charge = 0;
orbitState = OrbitState.None;
}
else if (SingleKeyPress(Keys.D) && player.Charge != -1)
{
player.Charge = -1;
orbitState = OrbitState.None;
}
#endregion
// otherwise, call the orbit methods & collision/speed limit
else
{
#region Orbit state in which player orbit around the pole both counter clockwise and clockwise
switch (orbitState)
{
case OrbitState.Orbit:
switch (player.Charge)
{
case -1:
{
//Call orbit method so that player can orbit around positive pole
mechanics.Orbit(pos, player);
//Increment player position based on the speed calculations from orbit method
player.XPos += player.XSpeed;
player.YPos += player.YSpeed;
break;
}
case 1:
{
//Call orbit method so that player can orbit around negative pole
mechanics.Orbit(neg, player);
//Increment player position based on the speed calculations from orbit method
player.XPos += player.XSpeed;
player.YPos += player.YSpeed;
break;
}
default:
{
orbitState = OrbitState.None;
break;
}
}
break;
default: break;
}
#endregion
#region NEW METHOD FOR WALL COLLISIONS
int i = 0;
bool wallIsHit = false;
while (wallIsHit == false && i < (walls.Count - 1))
{
wallIsHit = mechanics.Bounce(walls[i], player);
if (wallIsHit)
{
sounds["collision"].Play();
player = mechanics.WallCollision(player);
}
i++;
}
#endregion
#region check for max speed
if (player.XSpeed > Constants.MAX_SPEED)
{
player.XSpeed = Constants.MAX_SPEED;
}
else if (player.XSpeed < -(Constants.MAX_SPEED))
{
player.XSpeed = -(Constants.MAX_SPEED);
}
if (player.YSpeed > Constants.MAX_SPEED)
{
player.YSpeed = Constants.MAX_SPEED;
}
else if (player.YSpeed < -(Constants.MAX_SPEED))
{
player.YSpeed = -(Constants.MAX_SPEED);
}
#endregion
}
}
#endregion
#region Moving
else
{
#region find nearest pos and neg poles
pos = new Poles(0, 0, 0); // closest pos pole
neg = new Poles(0, 0, 0); // closest neg plole
int dis = 0; // distance between player and current pole
int pDis = 0; // distance between player and closest pos pole
int nDis = 0; // distance between player and closest neg pole
foreach (Poles pole in poles)
{
// calculate distance between player and current pole
dis = (int)(Math.Pow((pole.XPos - player.XPos), 2) + Math.Pow((pole.YPos - player.YPos), 2));
// check if current pos and neg poles have been set
if (pos.Charge == 0 && pole.Charge == 1)
{
// set base comparision for pos pole
pos = pole;
pDis = dis;
}
else if (neg.Charge == 0 && pole.Charge == -1)
{
// set base comparison for neg pole
neg = pole;
nDis = dis;
}
// check current pole against current pos and neg
switch (pole.Charge)
{
case 1: if (dis < pDis)
{
// set new nearest pos pole
pos = pole;
pDis = dis;
}
break;
case -1: if (dis < nDis)
{
// set new nearest ned pole
neg = pole;
nDis = dis;
}
break;
default: break;
}
}
#endregion
#region switch the player's charge
if (this.SingleKeyPress(Keys.S))
{
// change charge to neutral
player.Charge = 0;
}
else if (this.SingleKeyPress(Keys.A))
{
// change charge to positive
player.Charge = 1;
}
else if (this.SingleKeyPress(Keys.D))
{
// change charge to negative
player.Charge = -1;
}
#endregion
#region player acceleration
if (player.Charge == 0)
{
// neutral charge
player.YSpeed = mechanics.Gravity(player.YSpeed);
}
else if (player.Charge == 1)
{
// positive charge
player = mechanics.Attraction(neg, player);
// stick to opposite-charge pole
if (mechanics.PoleCollision(neg, player))
{
//player.XSpeed = 0;
//player.YSpeed = 0;
//Set orbitState to orbit
orbitState = OrbitState.Orbit;
}
// repulse from same-charge pole
else if (mechanics.PoleCollision(pos, player))
{
mechanics.Repulsion(pos, player);
}
}
else if (player.Charge == -1)
{
// negative charge
player = mechanics.Attraction(pos, player);
// stick to opposite-charge pole
if (mechanics.PoleCollision(pos, player))
{
//player.XSpeed = 0;
//player.YSpeed = 0;
//Set orbitState to orbit
orbitState = OrbitState.Orbit;
}
// repulse from same-charge pole
else if (mechanics.PoleCollision(neg, player))
{
mechanics.Repulsion(neg, player);
}
}
#endregion
#region NEW METHOD FOR WALL COLLISIONS
int i = 0;
bool wallIsHit = false;
while (wallIsHit == false && i < (walls.Count - 1))
{
wallIsHit = mechanics.Bounce(walls[i], player);
if (wallIsHit)
{
sounds["collision"].Play();
player = mechanics.WallCollision(player);
}
i++;
}
#endregion
#region check for max speed
if (player.XSpeed > Constants.MAX_SPEED)
{
player.XSpeed = Constants.MAX_SPEED;
}
else if (player.XSpeed < -(Constants.MAX_SPEED))
{
player.XSpeed = -(Constants.MAX_SPEED);
}
if (player.YSpeed > Constants.MAX_SPEED)
{
player.YSpeed = Constants.MAX_SPEED;
}
else if (player.YSpeed < -(Constants.MAX_SPEED))
{
player.YSpeed = -(Constants.MAX_SPEED);
}
#endregion
// calculate new position
player.XPos += player.XSpeed;
player.YPos += player.YSpeed;
}
#endregion
// keep the player on the screen
BorderCollision();
break;
#endregion
#region Case: Level Complete
case GameState.LevelComplete:
// leave this screen
if (SingleKeyPress(Keys.Enter))
{
levelSelect.cleared[(currentLevel)] = true;
// increment currently selected level, if possible
if (currentLevel < (maxLevel - 1))
{
currentLevel++;
levelSelect.currentLevel = currentLevel;
}
// return to the map
gameState = GameState.Map;
}
break;
#endregion
#region Case: Edit
case GameState.Edit:
// check if the editor is in use
if (mapMaker != null)
{
// return to the map and close the editor
if (mapMaker.mapState == MapMaker.MapState.Editing && SingleKeyPress(Keys.Escape))
{
mapMaker = null;
CheckLevelCount();
levelSelect.CheckCompletedLevels();
gameState = GameState.Map;
}
// otherwise, update the editor
else
{
mapMaker.Update(kbState, prevKBState);
}
}
// if there is no editor
else
{
mapMaker = new MapMaker(images, text);
}
break;
#endregion
#region Case: GameFinish
case GameState.GameFinish:
if (this.SingleKeyPress(Keys.Enter))
{
gameState = GameState.HighScores;
}
break;
#endregion
#region Case: HighScore
case GameState.HighScores:
// Open the high score list
getScore.LoadScores("HighScores.txt");
if (SingleKeyPress(Keys.W))
{
gameState = GameState.Map;
levelSelect.screenState = LevelSelect.ScreenState.Select;
}
else if (SingleKeyPress(Keys.E))
{
gameState = GameState.Map;
levelSelect.screenState = LevelSelect.ScreenState.Instructions;
}
else if (SingleKeyPress(Keys.S))
{
gameState = GameState.Title;
}
break;
#endregion
}
// save the current keyboard state for reference next frame
prevKBState = kbState;
base.Update(gameTime);
}