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812/**********************************************************************************************
*
* raylib-aseprite - Aseprite sprite loader for raylib.
*
* Copyright 2021 Rob Loach (@RobLoach)
*
* DEPENDENCIES:
* raylib 5.0+ https://www.raylib.com/
*
* LICENSE: zlib/libpng
*
* raylib-aseprite is licensed under an unmodified zlib/libpng license, which is an OSI-certified,
* BSD-like license that allows static linking with closed source software:
*
* This software is provided "as-is", without any express or implied warranty. In no event
* will the authors be held liable for any damages arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose, including commercial
* applications, and to alter it and redistribute it freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not claim that you
* wrote the original software. If you use this software in a product, an acknowledgment
* in the product documentation would be appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be misrepresented
* as being the original software.
*
* 3. This notice may not be removed or altered from any source distribution.
*
**********************************************************************************************/
#ifndef INCLUDE_RAYLIB_ASEPRITE_H_
#define INCLUDE_RAYLIB_ASEPRITE_H_
#include "raylib.h" // NOLINT
#include "cute_aseprite.h" // NOLINT
#ifdef __cplusplus
extern "C" {
#endif
/**
* Aseprite object containing a pointer to the ase_t* from cute_aseprite.h.
*
* @see LoadAseprite()
* @see UnloadAseprite()
*/
typedef struct Aseprite {
ase_t* ase; // Pointer to the cute_aseprite data.
} Aseprite;
/**
* Tag information from an Aseprite object.
*
* @see LoadAsepriteTag()
* @see LoadAsepriteTagFromIndex()
*/
typedef struct AsepriteTag {
char* name; // The name of the tag.
int currentFrame; // The frame that the tag is currently on
float timer; // The countdown timer in seconds
int direction; // Whether we are moving forwards, or backwards through the frames
float speed; // The animation speed factor (1 is normal speed, 2 is double speed)
Color color; // The color provided for the tag
bool loop; // Whether to continue to play the animation when the animation finishes
bool paused; // Set to true to not progression of the animation
Aseprite aseprite; // The loaded Aseprite file
ase_tag_t* tag; // The active tag to act upon
} AsepriteTag;
/**
* Slice data for the Aseprite.
*
* @see LoadAsepriteSlice()
* @see https://www.aseprite.org/docs/slices/
*/
typedef struct AsepriteSlice {
char* name; // The name of the slice.
Rectangle bounds; // The rectangle outer bounds for the slice.
} AsepriteSlice;
// Aseprite functions
Aseprite LoadAseprite(const char* fileName); // Load an .aseprite file
Aseprite LoadAsepriteFromMemory(unsigned char* fileData, int size); // Load an aseprite file from memory
bool IsAsepriteValid(Aseprite aseprite); // Check if the given Aseprite was loaded successfully
void UnloadAseprite(Aseprite aseprite); // Unloads the aseprite file
void TraceAseprite(Aseprite aseprite); // Display all information associated with the aseprite
Texture GetAsepriteTexture(Aseprite aseprite); // Retrieve the raylib texture associated with the aseprite
int GetAsepriteWidth(Aseprite aseprite); // Get the width of the sprite
int GetAsepriteHeight(Aseprite aseprite); // Get the height of the sprite
void DrawAseprite(Aseprite aseprite, int frame, int posX, int posY, Color tint);
void DrawAsepriteFlipped(Aseprite aseprite, int frame, int posX, int posY, bool horizontalFlip, bool verticalFlip, Color tint);
void DrawAsepriteV(Aseprite aseprite, int frame, Vector2 position, Color tint);
void DrawAsepriteVFlipped(Aseprite aseprite, int frame, Vector2 position, bool horizontalFlip, bool verticalFlip, Color tint);
void DrawAsepriteExFlipped(Aseprite aseprite, int frame, Vector2 position, float rotation, float scale, bool horizontalFlip, bool verticalFlip, Color tint);
void DrawAsepritePro(Aseprite aseprite, int frame, Rectangle dest, Vector2 origin, float rotation, Color tint);
void DrawAsepriteProFlipped(Aseprite aseprite, int frame, Rectangle dest, Vector2 origin, float rotation, bool horizontalFlip, bool verticalFlip, Color tint);
// Aseprite Tag functions
AsepriteTag LoadAsepriteTag(Aseprite aseprite, const char* name); // Load an Aseprite tag animation sequence
AsepriteTag LoadAsepriteTagFromIndex(Aseprite aseprite, int index); // Load an Aseprite tag animation sequence from its index
int GetAsepriteTagCount(Aseprite aseprite); // Get the total amount of available tags
bool IsAsepriteTagValid(AsepriteTag tag); // Check if the given Aseprite tag was loaded successfully
void UpdateAsepriteTag(AsepriteTag* tag); // Update the tag animation frame
AsepriteTag GenAsepriteTagDefault(); // Generate an empty Tag with sane defaults
void DrawAsepriteTag(AsepriteTag tag, int posX, int posY, Color tint);
void DrawAsepriteTagFlipped(AsepriteTag tag, int posX, int posY, bool horizontalFlip, bool verticalFlip, Color tint);
void DrawAsepriteTagV(AsepriteTag tag, Vector2 position, Color tint);
void DrawAsepriteTagVFlipped(AsepriteTag tag, Vector2 position, bool horizontalFlip, bool verticalFlip, Color tint);
void DrawAsepriteTagEx(AsepriteTag tag, Vector2 position, float rotation, float scale, Color tint);
void DrawAsepriteTagExFlipped(AsepriteTag tag, Vector2 position, float rotation, float scale, bool horizontalFlip, bool verticalFlip, Color tint);
void DrawAsepriteTagPro(AsepriteTag tag, Rectangle dest, Vector2 origin, float rotation, Color tint);
void DrawAsepriteTagProFlipped(AsepriteTag tag, Rectangle dest, Vector2 origin, float rotation, bool horizontalFlip, bool verticalFlip, Color tint);
void SetAsepriteTagFrame(AsepriteTag* tag, int frameNumber); // Sets which frame the tag is currently displaying.
int GetAsepriteTagFrame(AsepriteTag tag);
// Aseprite Slice functions
AsepriteSlice LoadAsepriteSlice(Aseprite aseprite, const char* name); // Load a slice from an Aseprite based on its name.
AsepriteSlice LoadAsperiteSliceFromIndex(Aseprite aseprite, int index); // Load a slice from an Aseprite based on its index.
int GetAsepriteSliceCount(Aseprite aseprite); // Get the amount of slices that are defined in the Aseprite.
bool IsAsepriteSliceValid(AsepriteSlice slice); // Return whether or not the given slice was found.
AsepriteSlice GenAsepriteSliceDefault(); // Generate empty Aseprite slice data.
#ifdef __cplusplus
}
#endif
#endif // INCLUDE_RAYLIB_ASEPRITE_H_
#ifdef RAYLIB_ASEPRITE_IMPLEMENTATION
#ifndef RAYLIB_ASEPRITE_IMPLEMENTATION_ONCE
#define RAYLIB_ASEPRITE_IMPLEMENTATION_ONCE
#ifndef CUTE_ASEPRITE_IMPLEMENTATION
#define CUTE_ASEPRITE_IMPLEMENTATION
#endif
#ifdef __cplusplus
extern "C" {
#endif
// Have cute_aseprite report warnings through raylib.
#define CUTE_ASEPRITE_WARNING(msg) TraceLog(LOG_WARNING, "ASEPRITE: %s (cute_headers.h:%i)", msg, __LINE__)
#define CUTE_ASEPRITE_ASSERT(condition) do { if (!(condition)) { TraceLog(LOG_WARNING, "ASEPRITE: Failed assert \"%s\" in %s:%i", #condition, __FILE__, __LINE__); } } while(0)
#define CUTE_ASEPRITE_ALLOC(size, ctx) MemAlloc((unsigned int)(size))
#define CUTE_ASEPRITE_FREE(mem, ctx) MemFree((void*)(mem))
#define CUTE_ASEPRITE_SEEK_SET 0
#define CUTE_ASEPRITE_SEEK_END 0
#define CUTE_ASEPRITE_FILE void
#define CUTE_ASEPRITE_FOPEN(file, property) (CUTE_ASEPRITE_FILE*)file
#define CUTE_ASEPRITE_FSEEK(fp, sz, pos) TraceLog(LOG_ERROR, "ASEPRITE: fseek() was removed")
#define CUTE_ASEPRITE_FREAD(data, sz, num, fp) TraceLog(LOG_ERROR, "ASEPRITE: fread() was removed")
#define CUTE_ASEPRITE_FTELL(fp) (0)
#define CUTE_ASEPRITE_FCLOSE(fp) TraceLog(LOG_ERROR, "ASEPRITE: fclose() was removed")
#include "cute_aseprite.h" // NOLINT
/**
* Load an .aseprite file through its memory data.
*
* @param fileData The loaded file data for the .aseprite file.
* @param size The size of file in bytes.
*
* @see UnloadAseprite()
* @see LoadAseprite()
*/
Aseprite LoadAsepriteFromMemory(unsigned char* fileData, int size) {
struct Aseprite aseprite;
aseprite.ase = 0;
if (!IsWindowReady()) {
TraceLog(LOG_ERROR, "ASEPRITE: Loading an Aseprite requires the Window to be running");
return aseprite;
}
ase_t* ase = cute_aseprite_load_from_memory(fileData, (int)size, 0);
if (ase == 0 || ase->frame_count == 0 || ase->w == 0 || ase->h == 0) {
TraceLog(LOG_ERROR, "ASEPRITE: Failed to load Aseprite");
return aseprite;
}
// Build the sprite's final image.
Image image = GenImageColor(ase->w * ase->frame_count, ase->h, BLANK);
// Load all frames.
for (int i = 0; i < ase->frame_count; i++) {
ase_frame_t* frame = ase->frames + i;
Rectangle dest = {(float)(i * ase->w), 0, (float)ase->w, (float)ase->h};
Rectangle src = {0, 0, (float)ase->w, (float)ase->h};
Image frameImage = {
.data = frame->pixels,
.width = ase->w,
.height = ase->h,
.mipmaps = 1,
.format = PIXELFORMAT_UNCOMPRESSED_R8G8B8A8
};
ImageDraw(&image, frameImage, src, dest, WHITE);
}
// Apply the transparent pixel.
int transparency = ase->transparent_palette_entry_index;
if (transparency >= 0 && transparency < ase->palette.entry_count) {
ase_color_t transparentColor = ase->palette.entries[transparency].color;
Color source = {
.r = transparentColor.r,
.g = transparentColor.g,
.b = transparentColor.b,
.a = transparentColor.a
};
ImageColorReplace(&image, source, BLANK);
}
// Create the Texture
Texture2D texture = LoadTextureFromImage(image);
// Now that the texture is loaded into the GPU, we can clear the image.
UnloadImage(image);
// Save the texture as the Aseprite context.
ase->mem_ctx = MemAlloc(sizeof(Texture2D));
Texture2D* texturePointer = (Texture2D*)ase->mem_ctx;
texturePointer->format = texture.format;
texturePointer->id = texture.id;
texturePointer->mipmaps = texture.mipmaps;
texturePointer->width = texture.width;
texturePointer->height = texture.height;
aseprite.ase = ase;
TraceLog(LOG_INFO, "ASEPRITE: Loaded successfully (%ix%i - %i frames)", ase->w, ase->h, ase->frame_count);
return aseprite;
}
/**
* Load an .aseprite file.
*
* @param fileName The path to the file to load.
*
* @return The loaded Aseprite object, or an empty one on failure.
*
* @see UnloadAseprite()
* @see IsAsepriteValid()
*/
Aseprite LoadAseprite(const char* fileName) {
int bytesRead;
unsigned char* fileData = LoadFileData(fileName, &bytesRead);
if (bytesRead == 0 || fileData == 0) {
TraceLog(LOG_ERROR, "ASEPRITE: Failed to load aseprite file \"%s\"", fileName);
struct Aseprite aseprite;
aseprite.ase = 0;
return aseprite;
}
Aseprite ase = LoadAsepriteFromMemory(fileData, bytesRead);
UnloadFileData(fileData);
return ase;
}
/**
* Determine whether or not the given Aseprite object was loaded successfully.
*
* @param aseprite The loaded Aseprite object.
*
* @return True if the Aseprite was loaded successfully, false otherwise.
*/
bool IsAsepriteValid(Aseprite aseprite) {
return aseprite.ase != 0;
}
/**
* Get the loaded raylib texture for the Aseprite.
*
* @param aseprite The loaded Aseprite object to retrieve the texture for.
*
* @return The internal texture associated with the Aseprite, or an empty Texture on failure.
*/
inline Texture GetAsepriteTexture(Aseprite aseprite) {
if (aseprite.ase == 0) {
struct Texture texture;
TraceLog(LOG_WARNING, "ASEPRITE: Cannot get Texture from non-existant aseprite");
texture.id = 0;
texture.width = 0;
texture.height = 0;
texture.mipmaps = 0;
texture.format = 0;
return texture;
}
Texture2D* texturePointer = (Texture2D*)aseprite.ase->mem_ctx;
return *texturePointer;
}
/**
* Get the width of the aseprite sprite.
*
* @param aseprite The loaded Aseprite object to retrieve the width for.
*
* @return The width of the sprite, or 0 on failure.
*/
int GetAsepriteWidth(Aseprite aseprite) {
if (aseprite.ase == 0) {
TraceLog(LOG_WARNING, "ASEPRITE: Cannot get width from non-existant aseprite");
return 0;
}
return aseprite.ase->w;
}
/**
* Get the height of the aseprite sprite.
*
* @param aseprite The loaded Aseprite object to retrieve the height for.
*
* @return The height of the sprite, or 0 on failure.
*/
int GetAsepriteHeight(Aseprite aseprite) {
if (aseprite.ase == 0) {
TraceLog(LOG_WARNING, "ASEPRITE: Cannot get width from non-existant aseprite");
return 0;
}
return aseprite.ase->h;
}
/**
* Get the amount of tags defined in the aseprite sprite.
*
* @param aseprite The loaded Aseprite object to retrieve the amount of tags for.
*
* @return The number of tags that are defined within the aseprite, or 0 on failure.
*/
int GetAsepriteTagCount(Aseprite aseprite) {
if (aseprite.ase == 0) {
TraceLog(LOG_WARNING, "ASEPRITE: Cannot get tag count non-existant aseprite");
return 0;
}
return aseprite.ase->tag_count;
}
/**
* Unloads the given Aseprite. This will also unload the internal Texture.
*
* @param aseprite The loaded Aseprite object of which to unload.
*
* @see LoadAseprite()
*/
void UnloadAseprite(Aseprite aseprite) {
ase_t* ase = aseprite.ase;
if (ase == 0) {
return;
}
// Destroy the texture.
if (ase->mem_ctx != 0) {
// Unload the texture from the GPU.
UnloadTexture(GetAsepriteTexture(aseprite));
// Unload the texture object.
MemFree(ase->mem_ctx);
}
// Destory the aseprite data.
cute_aseprite_free(ase);
TraceLog(LOG_INFO, "ASEPRITE: Unloaded Aseprite data successfully");
}
void DrawAseprite(Aseprite aseprite, int frame, int posX, int posY, Color tint) {
DrawAsepriteFlipped(aseprite, frame, posX, posY, false, false, tint);
}
void DrawAsepriteFlipped(Aseprite aseprite, int frame, int posX, int posY, bool horizontalFlip, bool verticalFlip, Color tint) {
Vector2 position = {(float)posX, (float)posY};
DrawAsepriteVFlipped(aseprite, frame, position, horizontalFlip, verticalFlip, tint);
}
void DrawAsepriteV(Aseprite aseprite, int frame, Vector2 position, Color tint) {
DrawAsepriteVFlipped(aseprite, frame, position, false, false, tint);
}
void DrawAsepriteVFlipped(Aseprite aseprite, int frame, Vector2 position, bool horizontalFlip, bool verticalFlip, Color tint) {
ase_t* ase = aseprite.ase;
if (ase == 0 || frame < 0 || frame >= ase->frame_count) {
return;
}
Rectangle source = {(float)(frame * ase->w), 0,
horizontalFlip ? (float)-ase->w : (float)ase->w,
verticalFlip ? (float)-ase->h : (float)ase->h
};
Texture2D texture = GetAsepriteTexture(aseprite);
DrawTextureRec(texture, source, position, tint);
}
void DrawAsepriteEx(Aseprite aseprite, int frame, Vector2 position, float rotation, float scale, Color tint) {
DrawAsepriteExFlipped(aseprite, frame, position, rotation, scale, false, false, tint);
}
void DrawAsepriteExFlipped(Aseprite aseprite, int frame, Vector2 position, float rotation, float scale, bool horizontalFlip, bool verticalFlip, Color tint) {
ase_t* ase = aseprite.ase;
if (ase == 0 || frame < 0 || frame >= ase->frame_count) {
return;
}
Rectangle source = {(float)(frame * ase->w), 0,
horizontalFlip ? (float)-ase->w : (float)ase->w,
verticalFlip ? (float)-ase->h : (float)ase->h
};
Texture2D texture = GetAsepriteTexture(aseprite);
Rectangle dest = {(float)position.x, (float)position.y, (float)ase->w * scale, (float)ase->h * scale};
Vector2 origin = {0, 0};
DrawTexturePro(texture, source, dest, origin, rotation, tint); // Draw a part of a texture defined by a rectangle with 'pro' parameters
}
void DrawAsepritePro(Aseprite aseprite, int frame, Rectangle dest, Vector2 origin, float rotation, Color tint) {
DrawAsepriteProFlipped(aseprite, frame, dest, origin, rotation, false, false, tint);
}
void DrawAsepriteProFlipped(Aseprite aseprite, int frame, Rectangle dest, Vector2 origin, float rotation, bool horizontalFlip, bool verticalFlip, Color tint) {
ase_t* ase = aseprite.ase;
if (ase == 0 || frame < 0 || frame >= ase->frame_count) {
return;
}
Rectangle source = {
(float)(frame * ase->w), 0,
horizontalFlip ? (float)-ase->w : (float)ase->w,
verticalFlip ? (float)-ase->h : (float)ase->h
};
Texture2D texture = GetAsepriteTexture(aseprite);
DrawTexturePro(texture, source, dest, origin, rotation, tint);
}
/**
* Display information about the loaded asprite.
*/
void TraceAseprite(Aseprite aseprite) {
ase_t* ase = aseprite.ase;
if (ase == 0) {
TraceLog(LOG_INFO, "ASEPRITE: Empty Aseprite information");
return;
}
TraceLog(LOG_INFO, "ASEPRITE: Aseprite information: (%ix%i - %i frames)", ase->w, ase->h, ase->frame_count);
TraceLog(LOG_INFO, " > Colors: %i", ase->number_of_colors);
TraceLog(LOG_INFO, " > Mode: %i", ase->mode);
TraceLog(LOG_INFO, " > Layers: %i", ase->layer_count);
for (int i = 0; i < ase->layer_count; i++) {
ase_layer_t* layer = ase->layers + i;
TraceLog(LOG_INFO, " - %s", layer->name);
}
TraceLog(LOG_INFO, " > Tags: %i", ase->tag_count);
for (int i = 0; i < ase->tag_count; i++) {
ase_tag_t* tag = ase->tags + i;
TraceLog(LOG_INFO, " - %s", tag->name);
}
TraceLog(LOG_INFO, " > Slices: %i", ase->slice_count);
for (int i = 0; i < ase->slice_count; i++) {
ase_slice_t* slice = ase->slices + i;
TraceLog(LOG_INFO, " - %s", slice->name);
}
}
/**
* Updates a tag to progress through its animation frame.
*
* @param tag The AsepriteTag passed in by reference (&tag).
*/
void UpdateAsepriteTag(AsepriteTag* tag) {
if (tag == 0 || tag->tag == 0 || tag->aseprite.ase == 0) {
TraceLog(LOG_WARNING, "ASEPRITE: Cannot update empty tag");
return;
}
// Don't progress if the tag is paused.
if (tag->paused) {
return;
}
ase_t* ase = tag->aseprite.ase;
ase_tag_t* aseTag = tag->tag;
// Count down the timer and see if it's time to update the frame.
tag->timer -= GetFrameTime() * tag->speed;
if (tag->timer > 0) {
return;
}
// Advance the frame and see if it's time to reset the position.
tag->currentFrame += tag->direction;
switch (aseTag->loop_animation_direction) {
case ASE_ANIMATION_DIRECTION_FORWARDS:
if (tag->currentFrame > aseTag->to_frame) {
if (tag->loop) {
tag->currentFrame = aseTag->from_frame;
} else {
tag->currentFrame = aseTag->to_frame;
tag->paused = true;
}
}
break;
case ASE_ANIMATION_DIRECTION_BACKWORDS:
if (tag->currentFrame < aseTag->from_frame) {
if (tag->loop) {
tag->currentFrame = aseTag->to_frame;
} else {
tag->currentFrame = aseTag->from_frame;
tag->paused = true;
}
}
break;
case ASE_ANIMATION_DIRECTION_PINGPONG:
if (tag->direction > 0) {
if (tag->currentFrame > aseTag->to_frame) {
tag->direction = -1;
if (tag->loop) {
tag->currentFrame = aseTag->to_frame - 1;
} else {
tag->currentFrame = aseTag->to_frame;
tag->paused = true;
}
}
} else {
if (tag->currentFrame < aseTag->from_frame) {
tag->direction = 1;
if (tag->loop) {
tag->currentFrame = aseTag->from_frame + 1;
} else {
tag->currentFrame = aseTag->from_frame;
tag->paused = true;
}
}
}
break;
}
// Reset the timer.
// TODO(RobLoach): Add the original tag->timer to make up the different in frame time?
tag->timer = (float)(ase->frames[tag->currentFrame].duration_milliseconds) / 1000.0f /* + tag->timer; */;
}
/**
* Set which frame the Aseprite tag is on.
*
* @param tag The Aseprite tag to modify.
* @param frameNumber Which frame to set the active tag to. If negative, will start from the end.
*/
void SetAsepriteTagFrame(AsepriteTag* tag, int frameNumber) {
// TODO: Need to attribute frame number for ASE_ANIMATION_DIRECTION_BACKWORDS?
if (frameNumber >= 0) {
tag->currentFrame = tag->tag->from_frame + frameNumber;
}
else {
tag->currentFrame = tag->tag->to_frame + frameNumber;
}
// Bounds
if (tag->currentFrame < tag->tag->from_frame) {
tag->currentFrame = tag->tag->from_frame;
}
else if (tag->currentFrame > tag->tag->to_frame) {
tag->currentFrame = tag->tag->to_frame;
}
}
int GetAsepriteTagFrame(AsepriteTag tag) {
// TODO: Need to attribute frame number for ASE_ANIMATION_DIRECTION_BACKWORDS?
return tag.currentFrame - tag.tag->from_frame;
}
void DrawAsepriteTag(AsepriteTag tag, int posX, int posY, Color tint) {
DrawAseprite(tag.aseprite, tag.currentFrame, posX, posY, tint);
}
void DrawAsepriteTagFlipped(AsepriteTag tag, int posX, int posY, bool horizontalFlip, bool verticalFlip, Color tint) {
DrawAsepriteFlipped(tag.aseprite, tag.currentFrame, posX, posY, horizontalFlip, verticalFlip, tint);
}
void DrawAsepriteTagV(AsepriteTag tag, Vector2 position, Color tint) {
DrawAsepriteV(tag.aseprite, tag.currentFrame, position, tint);
}
void DrawAsepriteTagVFlipped(AsepriteTag tag, Vector2 position, bool horizontalFlip, bool verticalFlip, Color tint) {
DrawAsepriteVFlipped(tag.aseprite, tag.currentFrame, position, horizontalFlip, verticalFlip, tint);
}
void DrawAsepriteTagEx(AsepriteTag tag, Vector2 position, float rotation, float scale, Color tint) {
DrawAsepriteEx(tag.aseprite, tag.currentFrame, position, rotation, scale, tint);
}
void DrawAsepriteTagExFlipped(AsepriteTag tag, Vector2 position, float rotation, float scale, bool horizontalFlip, bool verticalFlip, Color tint) {
DrawAsepriteExFlipped(tag.aseprite, tag.currentFrame, position, rotation, scale, horizontalFlip, verticalFlip, tint);
}
void DrawAsepriteTagPro(AsepriteTag tag, Rectangle dest, Vector2 origin, float rotation, Color tint) {
DrawAsepritePro(tag.aseprite, tag.currentFrame, dest, origin, rotation, tint);
}
void DrawAsepriteTagProFlipped(AsepriteTag tag, Rectangle dest, Vector2 origin, float rotation, bool horizontalFlip, bool verticalFlip, Color tint) {
DrawAsepriteProFlipped(tag.aseprite, tag.currentFrame, dest, origin, rotation, horizontalFlip, verticalFlip, tint);
}
/**
* Generate an aseprite tag with sane defaults.
*
* @return An AsepriteTag with sane defaults.
*/
AsepriteTag GenAsepriteTagDefault() {
struct AsepriteTag tag;
tag.aseprite.ase = 0;
tag.currentFrame = 0;
tag.tag = 0;
tag.timer = 0;
tag.direction = 0;
tag.speed = 1.0f;
tag.color = BLACK;
tag.loop = true;
tag.paused = false;
tag.name = 0;
return tag;
}
/**
* Load an Aseprite tag from the given index.
*
* @param aseprite The loaded Aseprite object from which to load the tag.
* @param index The tag index within the Aseprite object.
*
* @return The Aseprite tag information, or an empty tag on failure.
*
* @see LoadAsepriteTag()
* @see IsAsepriteTagValid()
*/
AsepriteTag LoadAsepriteTagFromIndex(Aseprite aseprite, int index) {
AsepriteTag tag = GenAsepriteTagDefault();
// Ensure the Aseprite exists.
ase_t* ase = aseprite.ase;
if (ase == 0) {
TraceLog(LOG_ERROR, "ASEPRITE: Asprite not loaded when attempting to load tag #%i", index);
return tag;
}
// Ensure the tag exists
if (index < 0 || index >= ase->tag_count) {
TraceLog(LOG_ERROR, "ASEPRITE: Tag index %i out of range for %i tags", index, ase->tag_count);
return tag;
}
// Base tag information
tag.aseprite.ase = aseprite.ase;
tag.tag = &ase->tags[index];
// Set up the frame range
tag.direction = 1;
tag.currentFrame = tag.tag->from_frame;
if (tag.tag->loop_animation_direction == ASE_ANIMATION_DIRECTION_BACKWORDS) {
tag.currentFrame = tag.tag->to_frame;
tag.direction = -1;
}
// Pause the animation if it's a one-frame tag
if (tag.tag->from_frame == tag.tag->to_frame) {
tag.paused = true;
}
// Timer in seconds
tag.timer = (float)(ase->frames[tag.currentFrame].duration_milliseconds) / 1000.0f;
// Color
tag.color.r = (unsigned char)tag.tag->r;
tag.color.g = (unsigned char)tag.tag->g;
tag.color.b = (unsigned char)tag.tag->b;
// Name
tag.name = (char*)tag.tag->name;
// Display a trace log about the aseprite tag
TraceLog(LOG_TRACE, "ASEPRITE: [ID %i] Asprite tag loaded successfully (%s)", index, tag.name);
return tag;
}
/**
* Load an Aseprite tag from the given name.
*
* @param aseprite The Aseprite object to load the tag from.
* @param name The name of the tag to be loaded.
*
* @return The loaded Aseprite tag, or an empty tag on failure.
*
* @see IsAsepriteTagValid()
* @see UpdateAsepriteTag()
*/
AsepriteTag LoadAsepriteTag(Aseprite aseprite, const char* name) {
AsepriteTag tag = GenAsepriteTagDefault();
ase_t* ase = aseprite.ase;
if (ase == 0) {
TraceLog(LOG_ERROR, "ASEPRITE: Cannot load tag \"%s\" from an Aseprite that's not loaded", name);
return tag;
}
// Loop through all tags to find the correct name.
for (int i = 0; i < ase->tag_count; i++) {
if (TextIsEqual(name, ase->tags[i].name)) {
return LoadAsepriteTagFromIndex(aseprite, i);
}
}
// Display a warning about the missing aseprite
TraceLog(LOG_WARNING, "ASEPRITE: Could not find tag \"%s\"", name);
return tag;
}
/**
* Determine whether or not the Aseprite tag was loaded successfully.
*
* @param tag The tag of which to check if it was loaded.
*
* @return True if the tag was loaded, false otherwise.
*/
bool IsAsepriteTagValid(AsepriteTag tag) {
return tag.tag != 0;
}
/**
* Load a slice from an Aseprite based on its name.
*
* @param name The name of the slice to find.
*
* @return The loaded slice, or an empty one if not found.
*/
AsepriteSlice LoadAsepriteSlice(Aseprite aseprite, const char* name) {
if (aseprite.ase == NULL) {
TraceLog(LOG_WARNING, "ASEPRITE: Cannot load slice on empty aseprite");
return GenAsepriteSliceDefault();
}
for (int i = 0; i < aseprite.ase->slice_count; i++) {
ase_slice_t* slice = &aseprite.ase->slices[i];
if (TextIsEqual(name, slice->name)) {
return LoadAsperiteSliceFromIndex(aseprite, i);
}
}
return GenAsepriteSliceDefault();
}
/**
* Load a slice from an Aseprite based on its index.
*
* @param index The index of the slice to load.
*
* @return The loaded slice, or an empty one if not found.
*/
AsepriteSlice LoadAsperiteSliceFromIndex(Aseprite aseprite, int index) {
if (aseprite.ase == NULL) {
TraceLog(LOG_WARNING, "ASEPRITE: Cannot load slice index from empty aseprite");
return GenAsepriteSliceDefault();
}
if (index < aseprite.ase->slice_count) {
AsepriteSlice output;
ase_slice_t* slice = &aseprite.ase->slices[index];
output.bounds.x = (float)slice->origin_x;
output.bounds.y = (float)slice->origin_y;
output.bounds.width = (float)slice->w;
output.bounds.height = (float)slice->h;
output.name = (char*)slice->name;
return output;
}
return GenAsepriteSliceDefault();
}
/**
* Generate empty Aseprite slice data.
*/
AsepriteSlice GenAsepriteSliceDefault() {
AsepriteSlice slice;
slice.name = "";
slice.bounds = (Rectangle){0, 0, 0, 0};
return slice;
}
/**
* Get the amount of slices that are defined in the Aseprite.
*
* @return The amount of slices.
*/
int GetAsepriteSliceCount(Aseprite aseprite) {
return aseprite.ase->slice_count;
}
/**
* Return whether or not the given slice was found.
*/
bool IsAsepriteSliceValid(AsepriteSlice slice) {
return TextLength(slice.name) != 0;
}
#ifdef __cplusplus
}
#endif
#endif // RAYLIB_ASEPRITE_IMPLEMENTATION_ONCE
#endif // RAYLIB_ASEPRITE_IMPLEMENTATION