public static void HostileThink(PTAMain world, PTAEntity entity, float dt)
{
float timeToSpawn = entity.Data.TimeToSpawn;
Color fadingEntityColor = entity.Renderer.material.color;
if (timeToSpawn > 0)
{
if (fadingEntityColor.a < 0)
{
fadingEntityColor.a = 1.0f;
}
fadingEntityColor.a -= dt;
entity.Renderer.material.color = fadingEntityColor;
timeToSpawn -= dt;
entity.Data.TimeToSpawn = timeToSpawn;
if (timeToSpawn > 0)
{
return;
}
}
else
{
fadingEntityColor.a = 1.0f;
entity.Renderer.material.color = fadingEntityColor;
entity.Collider.BoxCollider.enabled = true;
entity.HasSpawned = true;
}
}
static PTAEntity CreateEntity(PTAMain world)
{
if (world.RunningEntityIndex >= PTAMain.ENTITY_COUNT)
{
Debug.LogError("PTAEntity limit reached!");
return(null);
}
PTAEntity entity = world.Entities[world.RunningEntityIndex];
GameObject entityObject = GameObject.Instantiate(world.EntityPrefab);
entity.GameObject = entityObject;
entity.Transform = entityObject.transform;
entity.Rigidbody = entityObject.GetComponent <Rigidbody2D>();
entity.Renderer = entityObject.GetComponent <SpriteRenderer>();
entity.Collider = entityObject.GetComponent <PTACollider>();
entity.Collider.BoxCollider = entityObject.GetComponent <BoxCollider2D>();
entity.Collider.Self = entity;
entity.Collider.World = world;
entity.Move = MoveFunctions.MoveStub;
entity.Think = ThinkFunctions.ThinkStub;
entity.IsActive = true;
entity.EntityID = (uint)world.RunningEntityIndex;
++world.RunningEntityIndex;
return(entity);
}
public static PTAEntity CreatePlayer(PTAMain world)
{
PTAEntity entity = GetFreeEntity(world);
entity.GameObject.layer = PlayerLayer;
entity.Transform.localScale = new Vector3(2.0f, 2.0f, 2.0f);
entity.Transform.rotation = Quaternion.identity;
entity.Renderer.material.color = Color.white;
entity.Renderer.sprite = world.Sprites[(int)EntityType.Player];
entity.Data = new EntityData
{
Health = 1,
AttackSpeed = 1.5f,
MovementSpeed = 0.1f
};
entity.Think = ThinkFunctions.PlayerThink;
entity.EntityTypeID = EntityType.Player;
entity.HasSpawned = true;
return(entity);
}
void DetachEntitiesOnDeath(PTAMain world, PTAEntity entity)
{
// NOTE(SpectatorQL): I would really like to put these in a union and just loop through an array, but oh well.
PTAEntity lTurret = Self.LTurretSlot;
PTAEntity rTurret = Self.RTurretSlot;
PTAEntity drive = Self.DriveSlot;
if (lTurret != null)
{
PTAEntity.DetachEntity(lTurret);
Self.LTurretSlot = null;
DetermineEntityFate(world, lTurret);
}
if (rTurret != null)
{
PTAEntity.DetachEntity(rTurret);
Self.RTurretSlot = null;
DetermineEntityFate(world, rTurret);
}
if (drive != null)
{
PTAEntity.DetachEntity(drive);
Self.DriveSlot = null;
DetermineEntityFate(world, drive);
}
}
public static PTAEntity TurnIntoWildPowerup(PTAMain world, PTAEntity entity)
{
entity.Move = MoveFunctions.MoveStub;
entity.Think = ThinkFunctions.WildPowerupThink;
entity.EntityTypeID = EntityType.WildPowerup;
entity.Data.Health = 1;
entity.Data.MovementSpeed = 0.08f;
return(entity);
}
public static PTAEntity CreateDrivePowerup(PTAMain world)
{
PTAEntity entity = CreatePowerupInternal(world);
PowerupType powerupType = PowerupType.Drive;
entity.Renderer.sprite = world.PowerupSprites[(int)powerupType];
entity.PowerupTypeID = powerupType;
return(entity);
}
public static PTAEntity CreateEnemy(PTAMain world)
{
PTAEntity entity = GetFreeEntity(world);
entity.GameObject.layer = ThingsLayer;
entity.Transform.rotation = Quaternion.identity;
entity.Transform.localScale = new Vector3(2.0f, 2.0f, 2.0f);
EntityData entityData = new EntityData();
EnemyType enemyType = DetermineEnemyType(world);
switch (enemyType)
{
case EnemyType.Weak:
{
entity.Renderer.material.color = Color.red;
entityData.Health = 1;
entityData.MovementSpeed = 0.08f;
entityData.TimeToSpawn = 2.0f;
break;
}
case EnemyType.Strong:
{
entity.Renderer.material.color = Color.yellow;
entityData.Health = 2;
entityData.MovementSpeed = 0.08f;
entityData.TimeToSpawn = 2.0f;
break;
}
case EnemyType.Uber:
{
entity.Renderer.material.color = Color.green;
entityData.Health = 3;
entityData.MovementSpeed = 0.08f;
entityData.TimeToSpawn = 2.0f;
break;
}
}
entity.EnemyTypeID = enemyType;
entity.Data = entityData;
entity.EntityTypeID = EntityType.Enemy;
entity.HasSpawned = true;
entity.Renderer.sprite = world.Sprites[(int)EntityType.Enemy];
return(entity);
}
public static PTAEntity CreateFriendlyBullet(PTAMain world)
{
PTAEntity entity = CreateBulletInternal(world);
entity.Move = MoveFunctions.LinearMove;
entity.Think = ThinkFunctions.ThinkStub;
entity.GameObject.layer = PlayerLayer;
entity.Renderer.material.color = Color.white;
entity.Data.MovementSpeed = 0.3f;
return(entity);
}
static PTAEntity CreateBulletInternal(PTAMain world)
{
PTAEntity entity = GetFreeEntity(world);
entity.Transform.localScale = new Vector3(1.0f, 1.0f, 1.0f);
entity.Transform.rotation = Quaternion.identity;
entity.Collider.BoxCollider.enabled = true;
entity.EntityTypeID = EntityType.Bullet;
entity.HasSpawned = true;
entity.Renderer.sprite = world.Sprites[(int)EntityType.Bullet];
return(entity);
}
static PTAEntity GetFreeEntity(PTAMain world)
{
PTAEntity entity = world.FreeEntities.GetNext();
if (entity == null)
{
entity = CreateEntity(world);
if (entity == null)
{
// TODO(SpectatorQL): Do _something_ when this happens.
Debug.Assert(false, "__PANIC__");
return(null);
}
}
return(entity);
}
public static void WildPowerupThink(PTAMain world, PTAEntity entity, float dt)
{
entity.Rigidbody.velocity = Vector2.zero;
Vector2 entityPosition = entity.Transform.position;
Vector2 direction = (Vector2)world.PlayerEntity.Transform.position - entityPosition;
Vector2 newPosition = entityPosition + direction.normalized * entity.Data.MovementSpeed;
entity.Rigidbody.MovePosition(newPosition);
float rotationAngle = Mathf.Atan2(newPosition.y - entityPosition.y, newPosition.x - entityPosition.x) * Mathf.Rad2Deg;
Vector3 eulers = entity.Transform.eulerAngles;
eulers.z = rotationAngle;
entity.Transform.eulerAngles = eulers;
}
static PTAEntity CreatePowerupInternal(PTAMain world)
{
PTAEntity entity = GetFreeEntity(world);
entity.Transform.localScale = new Vector3(1.0f, 1.0f, 1.0f);
entity.Transform.rotation = Quaternion.identity;
entity.Renderer.material.color = Color.white;
entity.Move = MoveFunctions.MoveStub;
entity.Think = ThinkFunctions.ThinkStub;
entity.GameObject.layer = ThingsLayer;
entity.EntityTypeID = EntityType.Powerup;
entity.HasSpawned = true;
return(entity);
}
static EnemyType DetermineEnemyType(PTAMain world)
{
EnemyType result = EnemyType.Weak;
// NOTE(SpectatorQL): If randomPoint equals 1 there's a chance that the following loop code will cause an off-by-one error.
// It is extremely unlikely, because floating point precision is dumb enough to allow me to do this shit 99.999999% of the time.
// But at some point in the future this thing WILL crash and I'll be extremely sad when it does.
// That's also why I think I should use integers instead of floats for probability-based things and only
// cast to float when absolutely necessary.
// NOTE(SpectatorQL): Ok, so the thing is like this. .NET System.Random.NextDouble() function
// will _NEVER_ return 1.0 but Unity Random.value property _CAN_ possibly return 1.0.
// This the single most retarded thing I have encountered in programming up to this point in time {2019-08-20, 14:33}.
float randomPoint = UnityEngine.Random.value;
if (randomPoint == 1.0f)
{
randomPoint = 0.99999999999999978f;
}
// NOTE(SpectatorQL): Because Unity is dogshit.
float[] enemyProb = world.EnemyProbability.Values;
int enemyTypeCount = (int)EnemyType.Count;
for (int i = 0;
i < enemyTypeCount;
++i)
{
int index = world.WaveData.CurrentWave * enemyTypeCount + i;
Debug.Assert(index < enemyProb.Length);
if (randomPoint < enemyProb[index])
{
result = (EnemyType)i;
break;
}
else
{
randomPoint -= enemyProb[i];
}
}
Debug.Assert(result < EnemyType.Count);
return(result);
}
void DetermineEntityFate(PTAMain world, PTAEntity entity)
{
float spawnChance = Random.value;
if (spawnChance < World.WaveData.PowerupStayChance)
{
World.FreeEntities.Add(entity);
}
else
{
spawnChance = Random.value;
if (spawnChance < World.WaveData.WildPowerupSpawnChance)
{
World.FreeEntities.Add(entity);
}
else
{
PTAEntity.TurnIntoWildPowerup(World, entity);
++world.WaveData.WildPowerupCount;
}
}
}
public static void ThinkStub(PTAMain world, PTAEntity entity, float dt)
{
}
public static void PlayerThink(PTAMain world, PTAEntity entity, float dt)
{
// TODO(SpectatorQL): Android controls will be _very_ different from this.
// TODO(SpectatorQL): Move input management out of here.
float speed = entity.Data.MovementSpeed;
Vector2 newPosition = entity.Transform.position;
if (Input.GetKey(KeyCode.W))
{
newPosition.y += speed;
}
if (Input.GetKey(KeyCode.S))
{
newPosition.y -= speed;
}
if (Input.GetKey(KeyCode.A))
{
newPosition.x -= speed;
}
if (Input.GetKey(KeyCode.D))
{
newPosition.x += speed;
}
bool firing = false;
if (Input.GetMouseButton(0))
{
firing = true;
}
Vector3 mousePosition = Input.mousePosition;
mousePosition.z = 10.0f;
Vector3 worldMousePosition = Camera.main.ScreenToWorldPoint(mousePosition);
float angle = Mathf.Atan2(worldMousePosition.y - newPosition.y, worldMousePosition.x - newPosition.x);
angle = Mathf.Rad2Deg * angle;
entity.Transform.position = newPosition;
Quaternion newRotation = entity.Transform.rotation;
newRotation.eulerAngles = new Vector3(0.0f, 0.0f, angle);
entity.Transform.rotation = newRotation;
float runningAttackSpeed = entity.Data.RunningAttackSpeed;
if (firing)
{
if (runningAttackSpeed <= 0)
{
Vector2 fireDirection = worldMousePosition - entity.Transform.position;
PTAEntity newBullet = PTAEntity.CreateFriendlyBullet(world);
if (newBullet != null)
{
newBullet.Transform.position = entity.Transform.position;
newBullet.Data.MoveDirection = fireDirection.normalized;
}
runningAttackSpeed = entity.Data.AttackSpeed;
}
}
if (runningAttackSpeed > 0)
{
runningAttackSpeed -= dt;
}
entity.Data.RunningAttackSpeed = runningAttackSpeed;
}