protected override void OnUpdate()
{
switch (_state)
{
case eGameState.Startup:
{
bool done = TryGenerateViewport();
if (done)
{
var playerEntity = _creatureLibrary.SpawnPlayer(EntityManager);
// Re-parent the camera on graphical to follow the character.
if (!GlobalGraphicsSettings.ascii)
{
Entities.WithAll <Camera2D>().ForEach((ref Parent parent) =>
{
parent.Value = playerEntity;
});
}
_dungeon = EntityManager.World.GetExistingSystem <DungeonSystem>();
MoveToTitleScreen(PostUpdateCommands);
}
}
break;
case eGameState.Title:
{
var input = EntityManager.World.GetExistingSystem <InputSystem>();
if (input.GetKeyDown(KeyCode.H))
{
MoveToHiScores(PostUpdateCommands);
}
else if (input.GetKeyDown(KeyCode.Space))
{
MoveToInGame(PostUpdateCommands);
}
} break;
case eGameState.InGame:
{
var input = EntityManager.World.GetExistingSystem <InputSystem>();
if (input.GetKeyDown(KeyCode.I))
{
MoveToInventoryScreen(PostUpdateCommands);
}
} break;
case eGameState.Inventory:
{
var input = EntityManager.World.GetExistingSystem <InputSystem>();
if (populateInventory)
{
PopulateInventory();
}
if (input.GetKeyDown(KeyCode.Escape))
{
MoveBackToGame(PostUpdateCommands);
}
} break;
case eGameState.ReadQueuedLog:
{
var input = EntityManager.World.GetExistingSystem <InputSystem>();
var log = EntityManager.World.GetExistingSystem <LogSystem>();
if (log.HasQueuedLogs())
{
if (input.GetKeyDown(KeyCode.Space))
{
log.ShowNextLog(PostUpdateCommands);
}
}
else
{
_state = eGameState.InGame;
}
} break;
case eGameState.GameOver:
{
var input = EntityManager.World.GetExistingSystem <InputSystem>();
if (input.GetKeyDown(KeyCode.Space))
{
ResetPlayerAnimations();
MoveToTitleScreen(PostUpdateCommands);
}
else if (input.GetKeyDown(KeyCode.R))
{
ResetPlayerAnimations();
MoveToReplay(PostUpdateCommands);
}
} break;
case eGameState.NextLevel:
{
var input = EntityManager.World.GetExistingSystem <InputSystem>();
var log = EntityManager.World.GetExistingSystem <LogSystem>();
GenerateLevel();
log.AddLog("You descend another floor.");
log.ShowNextLog(PostUpdateCommands);
var tms = EntityManager.World.GetExistingSystem <TurnManagementSystem>();
tms.NeedToTickDisplay = true;
_state = eGameState.InGame;
} break;
case eGameState.HiScores:
{
var input = EntityManager.World.GetExistingSystem <InputSystem>();
if (input.GetKeyDown(KeyCode.Space))
{
MoveToTitleScreen(PostUpdateCommands);
}
} break;
}
}
protected override void OnUpdate()
{
var tms = EntityManager.World.GetOrCreateSystem <TurnManagementSystem>();
var gss = EntityManager.World.GetExistingSystem <GameStateSystem>();
// Find player to navigate towards
int2 playerPos = int2.zero;
int viewDepth = 0;
Entities.WithAll <Player>().ForEach((Entity player, ref WorldCoord coord, ref Animated animated, ref Sight sight) =>
{
playerPos.x = coord.x;
playerPos.y = coord.y;
viewDepth = sight.SightRadius;
});
// Move all creatures towards Player
Entities.WithNone <PatrollingState>().WithAll <MeleeAttackMovement>()
.ForEach((Entity creature, ref WorldCoord coord, ref Speed speed, ref Animated animated, ref TurnPriorityComponent pri) =>
{
if (tms.TurnCount % speed.SpeedRate == 0)
{
int2 creaturePos = new int2(coord.x, coord.y);
int2 nextPos =
AStarPathfinding.getNextStep(creaturePos, playerPos, gss.View, EntityManager);
Action movement = getDirection(creaturePos, nextPos);
tms.AddActionRequest(movement, creature, coord, animated.Direction, pri.Value);
}
});
Entities.ForEach((Entity creature, ref WorldCoord coord, ref PatrollingState patrol, ref Speed speed, ref Animated animated, ref TurnPriorityComponent pri) =>
{
if (tms.TurnCount % speed.SpeedRate == 0)
{
int2 monsterPos = new int2(coord.x, coord.y);
if (patrol.destination.Equals(new int2(0, 0)) || patrol.destination.Equals(monsterPos))
{
DungeonSystem ds = EntityManager.World.GetExistingSystem <DungeonSystem>();
patrol.destination = ds.GetRandomPositionInRandomRoom();
}
EntityManager.SetComponentData(creature, patrol);
// Follow defined path now that we have ensured that one exists
int2 nextPos =
AStarPathfinding.getNextStep(monsterPos, patrol.destination, gss.View, EntityManager);
Action movement = getDirection(monsterPos, nextPos);
tms.AddActionRequest(movement, creature, coord, animated.Direction, pri.Value);
}
});
View view = gss.View;
bool[] blockedPosition = new bool[view.Height * view.Width];
Entities.WithAll <BlockMovement>().ForEach((Entity e, ref WorldCoord coord) =>
{
int i = View.XYToIndex(new int2(coord.x, coord.y), view.Width);
blockedPosition[i] = true;
});
// Monsters stop Patrolling and start actively following the Player if they can spot the Player
Entities.WithAll <PatrollingState>().ForEach(
(Entity e, ref WorldCoord coord, ref Sight sight) =>
{
int2 pos = new int2(coord.x, coord.y);
float totalDistance = math.sqrt(math.pow(math.distance(playerPos.x, pos.x), 2) +
math.pow(math.distance(playerPos.y, pos.y), 2));
if (totalDistance <= viewDepth && !FogOfWarSystem.SightBlocked(playerPos, pos, view, blockedPosition))
{
PostUpdateCommands.RemoveComponent(e, typeof(PatrollingState));
}
});
}