Files
Dawn/src/display/animation/queue.h
2021-09-19 12:40:39 -07:00

113 lines
3.0 KiB
C

/**
* Copyright (c) 2021 Dominic Masters
*
* This software is released under the MIT License.
* https://opensource.org/licenses/MIT
*/
#pragma once
#include "../../libs.h"
#include "../../util/array.h"
#define ANIMATION_QUEUE_ITEM_MAX 128
#define ANIMATION_QUEUE_START 0xFF
typedef struct _queueaction_t queueaction_t;
typedef struct _queue_t queue_t;
/**
* Callback for queue events.
* @param conversation Conversation this text is attached to.
* @param text Text item that is being used in the callback
* @param i Index of the item in the queue.
*/
typedef void queuecallback_t(queue_t *queue, queueaction_t *action, uint8_t i);
typedef struct _queueaction_t {
/** Index that the action is within the queue */
uint8_t index;
/** Pointer to any custom user data */
void *data;
/** Callback to fire the moment the action is active in the queue */
queuecallback_t *onStart;
/** Callback to fire when this action has ended */
queuecallback_t *onEnd;
/** Callback to fire every update of this queue while action is active. */
queuecallback_t *onUpdate;
} queueaction_t;
typedef struct _queue_t {
/** Array of items within the queue. */
queueaction_t items[ANIMATION_QUEUE_ITEM_MAX];
uint8_t count;
/** Current index within the array of actions that is currently processing */
uint8_t current;
/** Internal timeline tracking */
float timeline;
/** Time that the current aciton started */
float actionStarted;
/** Delay Queue Item Storage */
float delays[ANIMATION_QUEUE_ITEM_MAX];
} queue_t;
/**
* Initialize the queue set.
* @param queue Queue to initialize.
*/
void queueInit(queue_t *queue);
/**
* Goes to the next action, or start the queue if this is the first action.
* @param queue Queue to skip to the next action.
* @returns Action that was just started.
*/
queueaction_t * queueNext(queue_t *queue);
/**
* Add a queue action to the queue.
* @param convo Queue to add to.
* @return Pointer to the queue action that was added.
*/
queueaction_t * queueAdd(queue_t *queue);
/**
* Updates the queue logic.
* @param convo Queue to update.
* @param delta Time delta to tick the queue by.
*/
void queueUpdate(queue_t *queue, float delta);
/**
* Dispose the queue when finished.
* @param queue Queue to dispose.
*/
void queueDispose(queue_t *queue);
/**
* Restacks the queue. The restack process essentially rewinds the queue so that
* the current items move back to position 0, and allows you to add more items
* to the queue again. Because the memory does shift, and the indexes do change
* a lot of your pointers will break, make sure you re-reference all your
* pointers.
*
* @param queue Queue to restack.
*/
void queueRestack(queue_t *queue);
/** Callbacks for Queue Delay Action */
void _queueDelayUpdate(queue_t *queue, queueaction_t *action, uint8_t i);
/**
* Adds a delay action to a queue.
* @param queue Queue to add to.
* @param delay Delay time (in seconds) to have.
* @return Pointer to the action added to the queue.
*/
queueaction_t * queueDelay(queue_t *queue, float delay);