Multiple sprites (each the same size) in one texture. More...
#include <Animation2D.h>
Collaboration diagram for nta::SpriteSheet:
Public Member Functions | |
| SpriteSheet (const GLTexture &tex, crivec2 dims) | |
| SpriteSheet (ContextData &context, crstring file_path, crivec2 dims) | |
| SpriteSheet (ContextData &context, crstring file_path, int num_cols) | |
| std::size_t | num_sprites () const |
| Returns the number of sprites in this sheet. | |
| glm::vec2 | sprite_dims () const |
| std::size_t | sprite_area () const |
| glm::vec4 | get_uv (std::size_t index) const |
| glm::vec4 | get_flipped_uv (std::size_t index) const |
| Like get_uv except it flips the sprite horizontally. | |
| glm::vec2 | get_frame_dims () const |
| Returns the dimensions of one sprite in this sheet. | |
| void | read_sprite_pixels (GLubyte *pixels, std::size_t index) const |
Public Attributes | |
| GLTexture | tex |
| The texture holding all the sprites. | |
| union { | |
| glm::ivec2 | dims |
| struct { | |
| int | num_rows |
| int | num_cols |
| } | |
| }; | |
| The dimensions of the sheet (rows x cols) | |
Detailed Description
Multiple sprites (each the same size) in one texture.
Definition at line 8 of file Animation2D.h.
Member Function Documentation
◆ get_uv()
|
inline |
Gets UV-coordinates of specific sprite in the sheet
The topleft sprite is index 0 and indices increase moving to the right
Definition at line 33 of file Animation2D.h.
Referenced by get_flipped_uv().
◆ read_sprite_pixels()
| void nta::SpriteSheet::read_sprite_pixels | ( | GLubyte * | pixels, |
| std::size_t | index | ||
| ) | const |
Reads pixels of one sprite into buffer specified by pixels
pixels will contain RGB values, so should be size >= sprite_area()*3
Definition at line 11 of file Animation2D.cpp.
The documentation for this struct was generated from the following files:
- include/nta/Animation2D.h
- src/Animation2D.cpp
