Bullet Hell | Notion

Different patterns/sequences creation
Dodge system

The bullet hell combat works by following a sequence of attacks. These attacks can be repeatable or not.

In this sequence, we can define a text to be displayed before the sequence starts and a text to be displayed after. Each attack will need to have a SpawnModule and at least one Action. These actions are AttackModules that can be reused in many sequences.

Following the example at the right, both attacks have the same Actions, but, since the SpawnModule is different, the whole pattern changes because of that. Also, following some variables changes, like SequenceWait and RepeatDelay. As presented below:

SpawnModules should ALWAYS be made using RectTransforms. So, even the SPAWN_LancerAnim is spawning a prefab that plays an animation on awake. This animation is made by changing the position values of the RectTransform. This way, we’ll always have the same positions no matter the screen.

The heart movement is made by holding and dragging the screen. And the dodge system takes the consideration of the gameobject’s collider Dodge. So, if wanted, the collider can be grown to make the dodge more easier to trigger, or shrinked to make it harder.

By now, the system contains 3 modules: Aim, Move and Spawn.

AIM MODULE:

Constant Aim: If enabled, will keep following the player’s position till the duration of the action is over.

Which, isn’t exactly the duration to trigger the NEXT action, as you can disable Override Attack Duration and play two or more actions. So, the Aim Value, which is the duration of the aiming action, will continue to happen, but the attack duration will already end, resulting in a homing missile type of attack.

If disabled, will grab the player’s position on spawn and aim towards that, which can be or not the current player position.

MOVE MODULE:

Pretty straightforward, will have a speed and a distance that it’ll go. So, if you want, you can change the Move Distance value so it goes just to the middle of the field.

SPAWN MODULE:

Is the most important one, without it, you’ll not spawn anything and so the sequence will not work.

It’ll have:

Attack Visual, which are the bullet’s that will be fired towards the player.
Spawn Setter is, to sum up, the spawn area. Needs to be made with RectTransform.
Radius Rang is used in SpawnTypes “Random Around Self” and “Random Around Spawner”.
Is Unique will make the spawner be spawned only ONCE at the start of the sequence. As other spawners will constantly be spawned.

Spawn Type, which can be one of these options:

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/// <summary>
        /// Spawn the attack at the origin point of the attack's prefab.
        /// </summary>
        AtAttack,

        /// <summary>
        /// Spawn the attack at <see cref="_spawnSetterPrefab"/> origin
        /// </summary>
        AtSpawner,

        /// <summary>
        /// Spawn the attack at <see cref="_runtimeSpawner"/> position
        /// </summary>
        AtRuntimeSpawner,

        /// <summary>
        /// Spawn the attack around its origin randomly
        /// </summary>
        RandomAroundSelfOrigin,

        /// <summary>
        /// Spawn the attack around prefab's origin randomly
        /// </summary>
        RandomAroundSpawnerOrigin,

        /// <summary>
        /// Spawn the attack in a random position inside a prefab
        /// </summary>
        RandomInsideSpawner

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