71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
// Copyright (c) 2021 Dominic Masters
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//
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// This software is released under the MIT License.
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// https://opensource.org/licenses/MIT
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#pragma once
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#include "../libs.h"
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#include "../util/math.h"
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#include "primitive/primitive.h"
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#include "primitive/quad.h"
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/** Definition of a Sprite Batch. */
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typedef struct {
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/** Maximum sprites the batch can hold. */
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int32_t maxSprites;
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/** The current/next sprite index. */
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int32_t currentSprite;
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/** Internal primitive */
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primitive_t primitive;
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} spritebatch_t;
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/**
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* Creates a new Sprite Batch made of standard quads.
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*
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* @param batch Sprite batch to init.
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* @param maxSprites The maxiumum number of sprites the batch can hold.
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*/
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void spriteBatchInit(spritebatch_t *batch, int32_t maxSprites);
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/**
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* Renders a sprite onto a given Sprite Batch.
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*
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* @param spriteBatch The sprite batch to render to.
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* @param index The index within the sprite batch. Set to -1 to select "next".
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* @param x X coordinate of the sprite.
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* @param y Y coordinate of the sprite.
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* @param width Width of the sprite.
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* @param height Height of the sprite.
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* @param u0 Texture U coordinate (min).
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* @param v0 Texture V coordinate (min).
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* @param u1 Texture U coordinate (max).
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* @param v1 Texture V coordinate (max).
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*/
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void spriteBatchQuad(spritebatch_t *spriteBatch, int32_t index,
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float x, float y, float z, float width, float height,
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float u0, float v0, float u1, float v1
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);
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/**
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* Flushes a sprite batch to reset the indexes.
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* @param spriteBatch The batch.
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*/
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void spriteBatchFlush(spritebatch_t *spriteBatch);
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/**
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* Draws the Sprite Batch.
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*
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* @param spriteBatch The sprite batch to render.
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* @param start Start index to render from.
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* @param count Count of sprites to render. Set to -1 to render to the current.
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*/
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void spriteBatchDraw(spritebatch_t *spriteBatch, int32_t start, int32_t count);
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/**
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* Disposes a previously created Sprite Batch.
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*
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* @param spriteBatch The sprite batch to dispose.
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*/
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void spriteBatchDispose(spritebatch_t *spriteBatch); |