public static void MoveDestructableObject(ref Vector2 velocity, ref Vector2 position, int width, int height, ref bool active, float elapsedTime)
{
#region MOVE HORIZONTALLY
//move horizontally
position.X += velocity.X * elapsedTime;
int topRow = (int)MathHelper.Clamp(position.Y / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomHeightTiles - 1);
int btmRow = (int)MathHelper.Clamp((position.Y + height - 1) / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomHeightTiles - 1);
int leftCol = (int)MathHelper.Clamp(position.X / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomWidthTiles - 1);
int rightCol = (int)MathHelper.Clamp((position.X + width - 1) / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomWidthTiles - 1);
//check right-hand side
if (velocity.X > 0)
{
for (int row = topRow; row <= btmRow; row++)
{
if (MapsManager.maps[(int)RoomsManager.CurrentRoom].array[row, rightCol].isSolid())
{
position.X = rightCol * Tile.tileSize - width;
active = false;
return;
}
}
}
//check left-hand side
else if (velocity.X < 0)
{
for (int row = topRow; row <= btmRow; row++)
{
if (MapsManager.maps[(int)RoomsManager.CurrentRoom].array[row, leftCol].isSolid())
{
position.X = (leftCol + 1) * Tile.tileSize;
active = false;
return;
}
}
}
#endregion
#region MOVE VERTICALLY
//move vertically
velocity.Y += (gravityAcceleration - velocity.Y * airFrictionCoeff) * elapsedTime;
position.Y += velocity.Y * elapsedTime;
topRow = (int)MathHelper.Clamp(position.Y / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomHeightTiles - 1);
btmRow = (int)MathHelper.Clamp((position.Y + height - 1) / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomHeightTiles - 1);
leftCol = (int)MathHelper.Clamp(position.X / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomWidthTiles - 1);
rightCol = (int)MathHelper.Clamp((position.X + width - 1) / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomWidthTiles - 1);
//check bottom
if (velocity.Y > 0)
{
for (int col = leftCol; col <= rightCol; col++)
{
if (MapsManager.maps[(int)RoomsManager.CurrentRoom].array[btmRow, col].isSolid())
{
position.Y = btmRow * Tile.tileSize - height;
active = false;
return;
}
}
}
//check top
else if (velocity.Y < 0)
{
for (int col = leftCol; col <= rightCol; col++)
{
if (MapsManager.maps[(int)RoomsManager.CurrentRoom].array[topRow, col].isSolid())
{
position.Y = (topRow + 1) * Tile.tileSize;
active = false;
return;
}
}
}
#endregion
#region COLLISION WITH MOVING PLATFORMS
//coliisions with moving platforms
for (int i = 0; i < PlatformsManager.platformsRoomManagers[(int)RoomsManager.CurrentRoom].movingPlatforms.Length; i++)
{
MovingPlatform p = PlatformsManager.platformsRoomManagers[(int)RoomsManager.CurrentRoom].movingPlatforms[i];
if (!p.Transparent &&
position.X + width > p.Position.X &&
position.X < p.Position.X + p.width &&
position.Y + height - p.Position.Y >= 0 &&
position.Y + height - p.Position.Y <= velocity.Y * elapsedTime - p.Shift.Y)
{
position.Y = p.Position.Y - height;
active = false;
return;
}
}
#endregion
}
//move player based on his current velocity and check for collisions with solid tiles
static void Move(float elapsedTime)
{
Vector2 totalSpeed = new Vector2();
#region CHECK IF IS STILL ON THE WALL
//CHECK IF IS STILL ON THE WALL
int topRow = (int)MathHelper.Clamp(position.Y / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomHeightTiles - 1);
int btmRow = (int)MathHelper.Clamp((position.Y + height - 0.001f) / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomHeightTiles - 1);
int leftCol = (int)MathHelper.Clamp((position.X - 1) / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomWidthTiles - 1);
int rightCol = (int)MathHelper.Clamp((position.X + 1 + width - 0.001f) / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomWidthTiles - 1);
if (isOnTheWall)
{
isOnTheWall = false;
if (isFacingRight)
{
for (int row = topRow; row <= btmRow; row++)
{
if (MapsManager.maps[(int)RoomsManager.CurrentRoom].array[row, rightCol].isSolid())
{
isOnTheWall = true;
}
}
}
else
{
for (int row = topRow; row <= btmRow; row++)
{
if (MapsManager.maps[(int)RoomsManager.CurrentRoom].array[row, leftCol].isSolid())
{
isOnTheWall = true;
}
}
}
}
#endregion
#region CALCULATE VELOCITIES
//CALCULATE X VELOCITIES
//total speed is a ocnbination of jumpSpeed and movement speed
if (isWallJumping)
{
if (Math.Abs(jumpSpeed.X) > maxHorizontalMovementSpeed)
{
totalSpeed.X = jumpSpeed.X;
}
else
{
if (Math.Sign(jumpSpeed.X) == -Math.Sign(horizontalMovementSpeed))
{
if (Math.Abs(jumpSpeed.X) >= maxHorizontalMovementSpeed / 2f)
{
totalSpeed.X = jumpSpeed.X;
}
else
{
isWallJumping = false;
jumpSpeed.X = 0;
totalSpeed.X = horizontalMovementSpeed;
}
}
else
{
totalSpeed.X = jumpSpeed.X + horizontalMovementSpeed;
totalSpeed.X = MathHelper.Clamp(totalSpeed.X, -maxHorizontalMovementSpeed, maxHorizontalMovementSpeed);
}
}
jumpSpeed.X -= 2f * jumpSpeed.X * Gravity.airFrictionCoeff * elapsedTime;//2 is a magic number
}
else if (!isTouchingTheGround)
{
if (Math.Sign(jumpSpeed.X) == -Math.Sign(horizontalMovementSpeed))
{
totalSpeed.X = horizontalMovementSpeed;
}
else if (Math.Abs(jumpSpeed.X) > maxHorizontalMovementSpeed)
{
totalSpeed.X = jumpSpeed.X;
jumpSpeed.X -= 2 * jumpSpeed.X * Gravity.airFrictionCoeff * elapsedTime;//2 is a magic number
}
else
{
totalSpeed.X = jumpSpeed.X + horizontalMovementSpeed;
totalSpeed.X = MathHelper.Clamp(totalSpeed.X, -maxHorizontalMovementSpeed, maxHorizontalMovementSpeed);
jumpSpeed.X -= 6 * jumpSpeed.X * Gravity.airFrictionCoeff * elapsedTime;//6 is a magic number
}
}
else
{
totalSpeed.X = horizontalMovementSpeed;
}
horizontalMovementSpeed = 0;
if (totalSpeed.X > 0)
{
isFacingRight = true;
}
else if (totalSpeed.X < 0)
{
isFacingRight = false;
}
//CALCULATE Y VELOCITIES
if (!isOnMovingPlatform)
{
if (isOnTheWall)
{
if (Gravity.gravityAcceleration - jumpSpeed.Y * Gravity.wallFrictionCoeff > 0)
{
jumpSpeed.Y += (Gravity.gravityAcceleration - jumpSpeed.Y * Gravity.wallFrictionCoeff) * elapsedTime;
}
}
else
{
if (Gravity.gravityAcceleration - jumpSpeed.Y * Gravity.airFrictionCoeff > 0)
{
jumpSpeed.Y += (Gravity.gravityAcceleration - jumpSpeed.Y * Gravity.airFrictionCoeff) * elapsedTime;
}
}
if (jumpSpeed.Y > Gravity.gravityAcceleration * elapsedTime * 15)
{
isTouchingTheGround = false;
isOnMovingPlatform = false;
if (currentAnimation != AnimationTypes.die && currentAnimation != AnimationTypes.attack && !isOnTheWall)
{
currentAnimation = AnimationTypes.fall;
}
}
totalSpeed.Y = jumpSpeed.Y;
}
else
{
totalSpeed += PlatformsManager.platformsRoomManagers[(int)RoomsManager.CurrentRoom].movingPlatforms[PlatformsManager.platformIndex].Shift / elapsedTime;
}
#endregion
position.X += totalSpeed.X * elapsedTime;
#region CHECK COLLISION WITH SOLID TILES
//check collisions with solid tiles
topRow = (int)MathHelper.Clamp(position.Y / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomHeightTiles - 1);
btmRow = (int)MathHelper.Clamp((position.Y + height - 0.001f) / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomHeightTiles - 1);
leftCol = (int)MathHelper.Clamp((position.X - 1) / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomWidthTiles - 1);
rightCol = (int)MathHelper.Clamp((position.X + 1 + width - 0.001f) / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomWidthTiles - 1);
//check right-hand side
if (totalSpeed.X >= 0)
{
for (int row = topRow; row <= btmRow; row++)
{
if (MapsManager.maps[(int)RoomsManager.CurrentRoom].array[row, rightCol].isSolid())
{
position.X = rightCol * Tile.tileSize - width;
if (!isTouchingTheGround)
{
isWallJumping = false;
if (jumpSpeed.Y > 0 && !isOnTheWall)
{
jumpSpeed.Y = 0;
}
if (jumpSpeed.Y > initialJumpSpeed.Y * 0.2f)
{
isOnTheWall = true;
}
jumpSpeed.X = 0;
}
break;
}
}
}
//check left-hand side
if (totalSpeed.X <= 0)
{
for (int row = topRow; row <= btmRow; row++)
{
if (MapsManager.maps[(int)RoomsManager.CurrentRoom].array[row, leftCol].isSolid())
{
position.X = (leftCol + 1) * Tile.tileSize;
if (!isTouchingTheGround)
{
isWallJumping = false;
if (jumpSpeed.Y > 0 && !isOnTheWall)
{
jumpSpeed.Y = 0;
}
if (jumpSpeed.Y > initialJumpSpeed.Y * 0.2f)
{
isOnTheWall = true;
}
jumpSpeed.X = 0;
}
break;
}
}
}
#endregion
position.Y += totalSpeed.Y * elapsedTime;
#region CHECK COLLISIONS WITH TILES
topRow = (int)MathHelper.Clamp(position.Y / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomHeightTiles - 1);
btmRow = (int)MathHelper.Clamp((position.Y + height - 0.001f) / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomHeightTiles - 1);
leftCol = (int)MathHelper.Clamp(position.X / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomWidthTiles - 1);
rightCol = (int)MathHelper.Clamp((position.X + width - 0.001f) / Tile.tileSize, 0, MapsManager.maps[(int)RoomsManager.CurrentRoom].roomWidthTiles - 1);
//check bottom
if (totalSpeed.Y > 0)
{
int span = ((int)(totalSpeed.Y * elapsedTime + Tile.tileSize) / Tile.tileSize);
for (int i = span - 1; i >= 0; i--)
{
for (int col = leftCol; col <= rightCol; col++)
{
if (btmRow - i < 0)
{
break;
}
if (MapsManager.maps[(int)RoomsManager.CurrentRoom].array[btmRow - i, col].isSolid())
{
position.Y = (btmRow - i) * Tile.tileSize - height;
jumpSpeed.Y = 0;
jumpSpeed.X = 0;
isTouchingTheGround = true;
isOnMovingPlatform = false;
canDoubleJump = true;
isOnTheWall = false;
isWallJumping = false;
i = 0;
break;
}
}
}
}
//check top
else if (totalSpeed.Y < 0)
{
for (int col = leftCol; col <= rightCol; col++)
{
if (MapsManager.maps[(int)RoomsManager.CurrentRoom].array[topRow, col].isSolid())
{
position.Y = (topRow + 1) * Tile.tileSize;
jumpSpeed.Y = 0;
isOnMovingPlatform = false;
break;
}
}
}
#endregion
#region CHECK COLLISION WITH MOVING PLATFORM
//check collisions with moving platforms
if (!isOnMovingPlatform)
{
for (int i = 0; i < PlatformsManager.platformsRoomManagers[(int)RoomsManager.CurrentRoom].movingPlatforms.Length; i++)
{
MovingPlatform p = PlatformsManager.platformsRoomManagers[(int)RoomsManager.CurrentRoom].movingPlatforms[i];
if (!p.Transparent &&
position.X + width > p.Position.X &&
position.X < p.Position.X + p.width &&
position.Y + height - p.Position.Y >= 0 &&
position.Y + height - p.Position.Y <= totalSpeed.Y * elapsedTime - p.Shift.Y)
{
isOnMovingPlatform = true;
position.Y = p.Position.Y - height;
jumpSpeed.Y = 0;
jumpSpeed.X = 0;
PlatformsManager.platformIndex = i;
isTouchingTheGround = true;
canDoubleJump = true;
isOnTheWall = false;
isWallJumping = false;
return;
}
}
}
else
{
MovingPlatform p = PlatformsManager.platformsRoomManagers[(int)RoomsManager.CurrentRoom].movingPlatforms[PlatformsManager.platformIndex];
if (position.X - p.Position.X <= -width || position.X - p.Position.X >= p.width || p.Transparent)
{
isOnMovingPlatform = false;
}
}
#endregion
}