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#pragma once
#include "../Component.h"
#include "Color.h"
#include "Texture.h"
#include "types.h"
namespace crepe {
class SDLContext;
class Animator;
class AnimatorSystem;
/**
* \brief Represents a renderable sprite component.
*
* A renderable sprite that can be displayed in the game. It includes a texture, color, and
* flip settings, and is managed in layers with defined sorting orders.
*/
class Sprite : public Component {
public:
//! settings to flip the image
struct FlipSettings {
//! horizantal flip
bool flip_x = false;
//! vertical flip
bool flip_y = false;
};
//! Sprite data that does not have to be set in the constructor
struct Data {
/**
* \brief Sprite tint (multiplied)
*
* The sprite texture's pixels are multiplied by this color before being displayed
* (including alpha channel for transparency).
*/
Color color = Color::WHITE;
//! Flip settings for the sprite
FlipSettings flip;
//! Layer sorting level of the sprite
const int sorting_in_layer = 0;
//! Order within the sorting layer
const int order_in_layer = 0;
/**
* \brief width and height of the sprite in game units
*
* - if exclusively width is specified, the height is calculated using the texture's aspect
* ratio
* - if exclusively height is specified, the width is calculated using the texture's aspect
* ratio
* - if both are specified the texture is streched to fit the specified size
*/
vec2 size = {0, 0};
//! independent sprite angle. rotating clockwise direction in degrees
float angle_offset = 0;
//! independent sprite scale multiplier
float scale_offset = 1;
//! independent sprite offset position
vec2 position_offset;
};
public:
/**
* \param game_id Unique identifier for the game object this sprite belongs to.
* \param texture asset of the image
* \param ctx all the sprite data
*/
Sprite(game_object_id_t id, Texture & texture, const Data & data);
~Sprite();
//! Texture used for the sprite
const Texture texture;
Data data;
private:
/**
* \brief ratio of the img
*
* - This will multiply one of \c size variable if it is 0.
* - Will be adjusted if \c Animator component is added to an GameObject that is why this
* value cannot be const.
*/
float aspect_ratio;
//! Reads the mask of sprite
friend class SDLContext;
//! Reads the all the variables plus the mask
friend class Animator;
//! Reads the all the variables plus the mask
friend class AnimatorSystem;
struct Rect {
int w = 0;
int h = 0;
int x = 0;
int y = 0;
};
//! Render area of the sprite this will also be adjusted by the AnimatorSystem if an Animator
// object is present in GameObject. this is in sprite pixels
Rect mask;
};
} // namespace crepe
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