private List <EnemyType> GenerateEnemyCombinations(SpriteBankRoomGroup sbrg, Random r)
{
// Create a random enemy set
List <EnemyType> NewEnemies = new List <EnemyType>();
List <EnemyType> PotentialEnemies = new List <EnemyType>();
bool done = false;
bool hasActivator = false;
while (!done)
{
foreach (EnemyType en in EnemyTypes)
{
// 1. Skip enemies that have exceeded the type's maximum
// 2. Reduce the overall chance of certain types appearing by randomly skipping them
// 3. Limit a room set to having at most one Activator enemy type
double chance = 0.0;
switch (en.ID)
{
case EEnemyID.Pipi_Activator:
if (numPipis >= MAX_PIPIS)
{
continue;
}
chance = r.NextDouble();
if (chance > CHANCE_PIPI)
{
continue;
}
break;
case EEnemyID.Mole_Activator:
if (numMoles >= MAX_MOLES)
{
continue;
}
chance = r.NextDouble();
if (chance > CHANCE_MOLE)
{
continue;
}
break;
case EEnemyID.M445_Activator:
if (numM445s > MAX_M445S)
{
continue;
}
chance = r.NextDouble();
if (chance > CHANCE_M445)
{
continue;
}
break;
case EEnemyID.Telly:
chance = r.NextDouble();
if (chance > CHANCE_TELLY)
{
continue;
}
break;
case EEnemyID.Springer:
chance = r.NextDouble();
if (chance > CHANCE_SPRINGER)
{
continue;
}
break;
default:
break;
}
// Skip any additional activator enemies
if (en.IsActivator && hasActivator)
{
continue;
}
// Reject certain enemy types for certain stages or rooms
switch (sbrg.Stage)
{
case EStageID.HeatW1:
// Moles don't display correctly in Heat or Wily 1. Also too annoying in Heat Yoku room.
if (en.ID == EEnemyID.Mole_Activator)
{
continue;
}
// Reject Pipis appearing in Yoku block room
if (en.ID == EEnemyID.Pipi_Activator && sbrg.ContainsRoom(2))
{
continue;
}
// Reject M445s appearing in Yoku block room
if (en.ID == EEnemyID.M445_Activator && sbrg.ContainsRoom(2))
{
continue;
}
// Press doesn't display correctly in Wily 1
if (en.ID == EEnemyID.Press && sbrg.Rooms.Last().RoomNum >= 7)
{
continue;
}
break;
case EStageID.AirW2:
// Moles don't display correctly in Heat
if (en.ID == EEnemyID.Mole_Activator && sbrg.Rooms[0].RoomNum < 7)
{
continue;
}
break;
case EStageID.WoodW3:
// Moles and Press don't display in Wood outside room
if (en.ID == EEnemyID.Mole_Activator && sbrg.ContainsRoom(7))
{
continue;
}
if (en.ID == EEnemyID.Press && sbrg.ContainsRoom(7))
{
continue;
}
// Don't spawn Springer, Blocky, or Press underwater
if (en.ID == EEnemyID.Springer && sbrg.ContainsRoom(0x11))
{
continue;
}
if (en.ID == EEnemyID.Blocky && sbrg.ContainsRoom(0x11))
{
continue;
}
if (en.ID == EEnemyID.Press && sbrg.ContainsRoom(0x11))
{
continue;
}
break;
case EStageID.BubbleW4:
// Moles don't display correctly in Bubble
if (en.ID == EEnemyID.Mole_Activator && sbrg.Rooms[0].RoomNum < 9)
{
continue;
}
// Press doesn't display correctly in Bubble
if (en.ID == EEnemyID.Press && sbrg.Rooms[0].RoomNum < 9)
{
continue;
}
// Don't spawn Springer or Blocky underwater
if (en.ID == EEnemyID.Springer && (sbrg.ContainsRoom(3) || sbrg.ContainsRoom(4)))
{
continue;
}
if (en.ID == EEnemyID.Blocky && (sbrg.ContainsRoom(3) || sbrg.ContainsRoom(4)))
{
continue;
}
break;
case EStageID.Clash:
// Mole bad GFX
if (en.ID == EEnemyID.Mole_Activator)
{
continue;
}
// Press bad GFX
if (en.ID == EEnemyID.Press)
{
continue;
}
break;
default:
break;
}
// If room has sprite restrictions, check if this enemy's sprite can be used
// (i.e. certain rooms must use certain rows on the sprite table to draw mandatory objects or effects
if (sbrg.IsSpriteRestricted)
{
// Check if this enemy uses the restricted row in the sprite bank
List <int> commonRows = en.SpriteBankRows.Intersect(sbrg.SpriteBankRowsRestriction).ToList();
if (commonRows.Count != 0)
{
bool reject = false;
for (int i = 0; i < en.SpriteBankRows.Count; i++)
{
int enemyRow = en.SpriteBankRows[i];
int indexOfRow = sbrg.SpriteBankRowsRestriction.IndexOf(enemyRow);
// For a restricted sprite bank row, see if enemy uses the same sprite pattern
if (indexOfRow > -1)
{
if (en.PatternTableAddresses[i * 2] == sbrg.PatternTableAddressesRestriction[indexOfRow * 2] &&
en.PatternTableAddresses[i * 2 + 1] == sbrg.PatternTableAddressesRestriction[indexOfRow * 2 + 1])
{
// Enemy and the restricted sprite use the same pattern table, allow it
// (do nothing)
}
else
{
// Enemy draws with this row, but using a different set of graphics. reject it.
reject = true;
break;
}
}
}
if (reject)
{
continue;
}
}
}
// Check if this enemy would fit in the sprite bank, given other new enemies already added
if (CheckEnemySpriteFitInBank(NewEnemies, en))
{
// Add enemy to set of possible enemies to place in
PotentialEnemies.Add(en);
}
}
// Unable to add any more enemies, done
if (PotentialEnemies.Count == 0)
{
done = true;
}
else
{
// Choose a new enemy to add to the set from all possible new enemies to add
EnemyType newEnemy = PotentialEnemies[r.Next(PotentialEnemies.Count)];
NewEnemies.Add(newEnemy);
PotentialEnemies.Clear();
// Increase total count of certain enemy types to limit their appearance later
switch (newEnemy.ID)
{
case EEnemyID.Pipi_Activator:
numPipis++;
break;
case EEnemyID.Mole_Activator:
numMoles++;
break;
case EEnemyID.M445_Activator:
numM445s++;
break;
default:
break;
}
// Flag the new enemy set as having an activator so that no more will be added
if (newEnemy.IsActivator)
{
hasActivator = true;
}
}
}
return(NewEnemies);
}
private List<EnemyType> GenerateEnemyCombinations(SpriteBankRoomGroup sbrg, Random r)
{
// Create a random enemy set
List<EnemyType> NewEnemies = new List<EnemyType>();
List<EnemyType> PotentialEnemies = new List<EnemyType>();
bool done = false;
bool hasActivator = false;
while (!done)
{
foreach (EnemyType en in EnemyTypes)
{
// 1. Skip enemies that have exceeded the type's maximum
// 2. Reduce the overall chance of certain types appearing by randomly skipping them
// 3. Limit a room set to having at most one Activator enemy type
double chance = 0.0;
switch (en.ID)
{
case EEnemyID.Pipi_Activator:
if (numPipis >= MAX_PIPIS)
continue;
chance = r.NextDouble();
if (chance > CHANCE_PIPI)
continue;
break;
case EEnemyID.Mole_Activator:
if (numMoles >= MAX_MOLES)
continue;
chance = r.NextDouble();
if (chance > CHANCE_MOLE)
continue;
break;
case EEnemyID.Telly:
chance = r.NextDouble();
if (chance > CHANCE_TELLY)
continue;
break;
case EEnemyID.Springer:
chance = r.NextDouble();
if (chance > CHANCE_SPRINGER)
continue;
break;
default:
break;
}
// Skip any additional activator enemies
if (en.IsActivator && hasActivator)
{
continue;
}
// Reject certain enemy types for certain stages or rooms
switch (sbrg.Stage)
{
case EStageID.HeatW1:
// Moles don't display correctly in Heat or Wily 1. Also too annoying in Heat Yoku room.
if (en.ID == EEnemyID.Mole_Activator) continue;
// Reject Pipis appearing in Yoku block room
if (en.ID == EEnemyID.Pipi_Activator && sbrg.ContainsRoom(2)) continue;
// Press doesn't display correctly in Wily 1
if (en.ID == EEnemyID.Press && sbrg.Rooms.Last().RoomNum >= 7) continue;
break;
case EStageID.AirW2:
// Moles don't display correctly in Heat
if (en.ID == EEnemyID.Mole_Activator && sbrg.Rooms[0].RoomNum < 7) continue;
break;
case EStageID.WoodW3:
// Moles and Press don't display in Wood outside room
if (en.ID == EEnemyID.Mole_Activator && sbrg.ContainsRoom(7)) continue;
if (en.ID == EEnemyID.Press && sbrg.ContainsRoom(7)) continue;
// Don't spawn Springer, Blocky, or Press underwater
if (en.ID == EEnemyID.Springer && sbrg.ContainsRoom(11)) continue;
if (en.ID == EEnemyID.Blocky && sbrg.ContainsRoom(11)) continue;
if (en.ID == EEnemyID.Press && sbrg.ContainsRoom(11)) continue;
break;
case EStageID.BubbleW4:
// Moles don't display correctly in Bubble
if (en.ID == EEnemyID.Mole_Activator && sbrg.Rooms[0].RoomNum < 9) continue;
// Press doesn't display correctly in Bubble
if (en.ID == EEnemyID.Press && sbrg.Rooms[0].RoomNum < 9) continue;
// Don't spawn Springer or Blocky underwater
if (en.ID == EEnemyID.Springer && (sbrg.ContainsRoom(3) || sbrg.ContainsRoom(4))) continue;
if (en.ID == EEnemyID.Blocky && (sbrg.ContainsRoom(3) || sbrg.ContainsRoom(4))) continue;
break;
case EStageID.Clash:
// Mole bad GFX
if (en.ID == EEnemyID.Mole_Activator) continue;
// Press bad GFX
if (en.ID == EEnemyID.Press) continue;
break;
default:
break;
}
// If room has sprite restrictions, check if this enemy's sprite can be used
// (i.e. certain rooms must use certain rows on the sprite table to draw mandatory objects or effects
if (sbrg.IsSpriteRestricted)
{
// Check if this enemy uses the restricted row in the sprite bank
List<int> commonRows = en.SpriteBankRows.Intersect(sbrg.SpriteBankRowsRestriction).ToList();
if (commonRows.Count != 0)
{
bool reject = false;
for (int i = 0; i < en.SpriteBankRows.Count; i++)
{
int enemyRow = en.SpriteBankRows[i];
int indexOfRow = sbrg.SpriteBankRowsRestriction.IndexOf(enemyRow);
// For a restricted sprite bank row, see if enemy uses the same sprite pattern
if (indexOfRow > -1)
{
if (en.PatternTableAddresses[i * 2] == sbrg.PatternTableAddressesRestriction[indexOfRow * 2] &&
en.PatternTableAddresses[i * 2 + 1] == sbrg.PatternTableAddressesRestriction[indexOfRow * 2 + 1])
{
// Enemy and the restricted sprite use the same pattern table, allow it
// (do nothing)
}
else
{
// Enemy draws with this row, but using a different set of graphics. reject it.
reject = true;
break;
}
}
}
if (reject)
{
continue;
}
}
}
// Check if this enemy would fit in the sprite bank, given other new enemies already added
if (CheckEnemySpriteFitInBank(NewEnemies, en))
{
// Add enemy to set of possible enemies to place in
PotentialEnemies.Add(en);
}
}
// Unable to add any more enemies, done
if (PotentialEnemies.Count == 0)
{
done = true;
}
else
{
// Choose a new enemy to add to the set from all possible new enemies to add
EnemyType newEnemy = PotentialEnemies[r.Next(PotentialEnemies.Count)];
NewEnemies.Add(newEnemy);
PotentialEnemies.Clear();
// Increase total count of certain enemy types to limit their appearance later
switch (newEnemy.ID)
{
case EEnemyID.Pipi_Activator:
numPipis++;
break;
case EEnemyID.Mole_Activator:
numMoles++;
break;
default:
break;
}
// Flag the new enemy set as having an activator so that no more will be added
if (newEnemy.IsActivator)
{
hasActivator = true;
}
}
}
return NewEnemies;
}