// This is used for the first room. It does not have a Corridor parameter since there are no corridors yet.
public void SetupRoom(GenerationParams gParams)
{
// Set a random width and height.
roomWidth = gParams.roomWidth.Random;
roomHeight = gParams.roomHeight.Random;
// Set the x and y coordinates so the room is roughly in the middle of the board.
xPos = Mathf.RoundToInt(gParams.columns / 2f - roomWidth / 2f);
yPos = Mathf.RoundToInt(gParams.rows / 2f - roomHeight / 2f);
}
// This is an overload of the SetupRoom function and has a corridor parameter that represents the corridor entering the room.
public void SetupRoom(GenerationParams gParams, Corridor corridor)
{
// Set the entering corridor direction.
enteringCorridor = corridor.direction;
// Set random values for width and height.
roomWidth = gParams.roomWidth.Random;
roomHeight = gParams.roomHeight.Random;
switch (corridor.direction)
{
// If the corridor entering this room is going north...
case Direction.North:
// ... the height of the room mustn't go beyond the board so it must be clamped based
// on the height of the board (rows) and the end of corridor that leads to the room.
roomHeight = Mathf.Clamp(roomHeight, 1, gParams.rows - corridor.EndPositionY);
// The y coordinate of the room must be at the end of the corridor (since the corridor leads to the bottom of the room).
yPos = corridor.EndPositionY;
// The x coordinate can be random but the left-most possibility is no further than the width
// and the right-most possibility is that the end of the corridor is at the position of the room.
xPos = Random.Range(corridor.EndPositionX - roomWidth + 1, corridor.EndPositionX);
// This must be clamped to ensure that the room doesn't go off the board.
xPos = Mathf.Clamp(xPos, 0, gParams.columns - roomWidth);
break;
case Direction.East:
roomWidth = Mathf.Clamp(roomWidth, 1, gParams.columns - corridor.EndPositionX);
xPos = corridor.EndPositionX;
yPos = Random.Range(corridor.EndPositionY - roomHeight + 1, corridor.EndPositionY);
yPos = Mathf.Clamp(yPos, 0, gParams.rows - roomHeight);
break;
case Direction.South:
roomHeight = Mathf.Clamp(roomHeight, 1, corridor.EndPositionY);
yPos = corridor.EndPositionY - roomHeight + 1;
xPos = Random.Range(corridor.EndPositionX - roomWidth + 1, corridor.EndPositionX);
xPos = Mathf.Clamp(xPos, 0, gParams.columns - roomWidth);
break;
case Direction.West:
roomWidth = Mathf.Clamp(roomWidth, 1, corridor.EndPositionX);
xPos = corridor.EndPositionX - roomWidth + 1;
yPos = Random.Range(corridor.EndPositionY - roomHeight + 1, corridor.EndPositionY);
yPos = Mathf.Clamp(yPos, 0, gParams.rows - roomHeight);
break;
}
}
bool ChooseGenerationParams(bool playerDied)
{
if (playerDied)
{
nextLevel--;
}
if (nextLevel == levelGenerationParams.Length)
{
return(false); // No more levels to play
}
gParams = levelGenerationParams[nextLevel];
nextLevel++;
return(true);
}
public void SetupCorridor(GenerationParams gParams, Room room, bool firstCorridor)
{
// Set a random direction (a random index from 0 to 3, cast to Direction).
direction = (Direction)Random.Range(0, 4);
// Find the direction opposite to the one entering the room this corridor is leaving from.
// Cast the previous corridor's direction to an int between 0 and 3 and add 2 (a number between 2 and 5).
// Find the remainder when dividing by 4 (if 2 then 2, if 3 then 3, if 4 then 0, if 5 then 1).
// Cast this number back to a direction.
// Overall effect is if the direction was South then that is 2, becomes 4, remainder is 0, which is north.
Direction oppositeDirection = (Direction)(((int)room.enteringCorridor + 2) % 4);
// If this is noth the first corridor and the randomly selected direction is opposite to the previous corridor's direction...
if (!firstCorridor && direction == oppositeDirection)
{
// Rotate the direction 90 degrees clockwise (North becomes East, East becomes South, etc).
// This is a more broken down version of the opposite direction operation above but instead of adding 2 we're adding 1.
// This means instead of rotating 180 (the opposite direction) we're rotating 90.
int directionInt = (int)direction;
directionInt++;
directionInt = directionInt % 4;
direction = (Direction)directionInt;
}
// Set a random length.
corridorLength = gParams.corridorLength.Random;
// Create a cap for how long the length can be (this will be changed based on the direction and position).
int maxLength = gParams.corridorLength.m_Max;
switch (direction)
{
// If the choosen direction is North (up)...
case Direction.North:
// ... the starting position in the x axis can be random but within the width of the room.
startXPos = Random.Range(room.xPos, room.xPos + room.roomWidth - 1);
// The starting position in the y axis must be the top of the room.
startYPos = room.yPos + room.roomHeight;
// The maximum length the corridor can be is the height of the board (rows) but from the top of the room (y pos + height).
maxLength = gParams.rows - startYPos - gParams.roomHeight.m_Min;
break;
case Direction.East:
startXPos = room.xPos + room.roomWidth;
startYPos = Random.Range(room.yPos, room.yPos + room.roomHeight - 1);
maxLength = gParams.columns - startXPos - gParams.roomWidth.m_Min;
break;
case Direction.South:
startXPos = Random.Range(room.xPos, room.xPos + room.roomWidth);
startYPos = room.yPos;
maxLength = startYPos - gParams.roomHeight.m_Min;
break;
case Direction.West:
startXPos = room.xPos;
startYPos = Random.Range(room.yPos, room.yPos + room.roomHeight);
maxLength = startXPos - gParams.roomWidth.m_Min;
break;
}
// We clamp the length of the corridor to make sure it doesn't go off the board.
corridorLength = Mathf.Clamp(corridorLength, 1, maxLength);
}
