/// <summary>
/// Randomly generates and places a corridor of traps.
/// </summary>
/// <param name="offset">Distance forward from the origin in spaces</param>
public void CreateCorridor(int offset = 0)
{
iterations++;
float trap_density = trap_density_per_distance_curve.Evaluate(iterations * corridor_height);
float pickup_density = pickup_density_per_distance_curve.Evaluate(iterations * corridor_height);
pickup_gen.CreateCorridor(corridor_height, corridor_width, offset, pickup_density);
TrapInfo[,] corridor = new TrapInfo[corridor_width, corridor_height];
HashSet <TrapInfo> placed_traps = new HashSet <TrapInfo>();
//Populates the corridor with random traps
for (int x = 0; x < corridor.GetLength(0); x++)
{
for (int y = 0; y < corridor.GetLength(1); y++)
{
if (Random.Range(0f, 1f) <= trap_density)
{
TrapInfo blueprint = traps[Random.Range(0, traps.Count)];
corridor[x, y] = new TrapInfo(blueprint, x, y);
placed_traps.Add(corridor[x, y]);
}
}
}
//Clears overlapping traps
//trap_infos tracks remaining traps, which are the one that haven't been expanded and are ok to clear for other traps.
List <TrapInfo> trap_infos = placed_traps.ToList(); //List of traps that have been orignally seeded into the corridor
HashSet <TrapInfo> trapset = new HashSet <TrapInfo>(); //Set of traps that have been checked and expanded and will actually be built
while (trap_infos.Count != 0)
{
TrapInfo trap = trap_infos[trap_infos.Count - 1];
bool has_space = true;
//checks if its origin is on the edge if required
if (trap.needs_edge)
{
if (trap.pos_x != 0 && trap.pos_x != corridor.GetLength(0) - 1)
{
has_space = false;
}
}
//checks if it has space to expand in the correct direction that doesn't get in the way of anything.
for (int x = trap.pos_x; Mathf.Abs(x - trap.pos_x) < Mathf.Abs(trap.width); x += (int)Mathf.Sign(trap.width))
{
for (int y = trap.pos_y; Mathf.Abs(y - trap.pos_y) < Mathf.Abs(trap.height); y += (int)Mathf.Sign(trap.height))
{
if (x >= 0 && x < corridor.GetLength(0) && y >= 0 && y < corridor.GetLength(1))
{
if (trapset.Contains(corridor[x, y])) //i.e. there is an already expanded trap there
{
has_space = false;
}
}
else
{
has_space = false;
}
}
}
//Expands itself if there is space for it, otherwise removes itself
if (has_space)
{
trapset.Add(trap);
for (int x = trap.pos_x; Mathf.Abs(x - trap.pos_x) < Mathf.Abs(trap.width); x += (int)Mathf.Sign(trap.width))
{
for (int y = trap.pos_y; Mathf.Abs(y - trap.pos_y) < Mathf.Abs(trap.height); y += (int)Mathf.Sign(trap.height))
{
if (corridor[x, y] != trap)
{
trap_infos.Remove(corridor[x, y]);
}
corridor[x, y] = trap;
}
}
}
else
{
//if nothing else has expanded to take its space, nullify itself.
if (corridor[trap.pos_x, trap.pos_y] == trap)
{
corridor[trap.pos_x, trap.pos_y] = null;
}
}
trap_infos.Remove(trap);
}
//Actually puts traps objects in the world.
foreach (TrapInfo trap_info in corridor)
{
if (trap_info != null)
{
trapset.Add(trap_info);
}
}
TrapInfo[] traps_to_build = trapset.ToArray();
foreach (TrapInfo trap_info in traps_to_build)
{
Quaternion rotation = Quaternion.identity;
for (int i = 0; i < trap_info.rotation; i++)
{
rotation *= Quaternion.Euler(0, 90, 0);
}
Trap new_trap = Instantiate(trap_info.prefab, new Vector3(trap_info.pos_x, 0, trap_info.pos_y + offset), rotation).GetComponentInChildren <Trap>();
new_trap.IncrementDirection(trap_info.rotation);
}
//Creating Floor
for (int x = 0; x < corridor.GetLength(0); x++)
{
for (int y = 0; y < corridor.GetLength(1); y++)
{
//Rotation is to cancel out the axis mismatch with blender.
GameObject floor = floor_prefabs[Random.Range(0, floor_prefabs.Count())];
Instantiate(floor, new Vector3(x, 0, y + offset), Quaternion.Euler(Vector3.right * -90 + Vector3.up * 90 * Random.Range(0, 4)));
}
}
//Creating Walls
for (int y = 0; y < corridor.GetLength(1); y++)
{
GameObject wall = wall_prefabs[Random.Range(0, wall_prefabs.Count())];
Instantiate(wall, new Vector3(-1, 0, y + offset), Quaternion.Euler(Vector3.right * -90));
wall = wall_prefabs[Random.Range(0, wall_prefabs.Count())];
Instantiate(wall, new Vector3(corridor.GetLength(0), 0, y + offset), Quaternion.Euler(Vector3.right * -90 + Vector3.up * 180));
}
}
