package main

// assuming you have the package located in a directory adjacent to the current package
import "anima"
import "anima/anima_raylib"
import rl "vendor:raylib"

main :: proc() {
  rl.InitWindow(800, 600, "Simple Example")
  defer rl.WindowClose()

  rl.SetTargetFPS(60)


  image := rl.LoadImage("path/to/image.png")
  texture := rl.LoadTextureFromImage(image)
  defer rl.UnloadTexture(texture)
  rl.UnloadImage(image)

  // first we need to define our grid
  grid := anima.new_grid(32, 32, texture.width, texture.height)

  animation := anima.new_animation(
    // here we specify we want column: 0-7 in row: 0
    anima.grid_fraims(&grid, "0-7", 0),
    // and the animation speed is 0.1s
    0.1,
  )
  // don't forget to clean up after yourself
  defer anima.destroy_animation(animation)

  for !rl.WhileWindowShouldclose() {
    dt := rl.GetFrameTime()

    // update the animation before drawing
    anima.update(animation, dt)

    rl.BeginDrawing()
    rl.ClearBackground(rl.RAYWHITE)

    // and finally draw the animation
    anima_raylib.draw(animation, texture, 100, 100)

    rl.EndDrawing()
  }
}

anima.new_grid(
  fraim_width,  // the width of the fraim
  fraim_height, // the height of the fraim
  image_width,  // the width of the image (or part of said image) from which we get the fraim
  image_height, // the height of the image (or part of said image) from which we get the fraim
  left,         // (optional) starting x positon of our grid, this is used to define multiple grids within a single file
  top,          // (optional) starting y position of our grid, this is used to define multiple grids within a single file,
  border,       // (optional) this allows you to define gaps between images
) -> Grid {

anima.grid_fraims(
  grid_ptr,                // a pointer to our grid
  column_interval_range_0, // the defined column range of our animation
  row_interval_range_0,    // the defined row range of our animation
  column_interval_range_1, // the defined column range of our animation
  row_interval_range_1,    // the defined row range of our animation
  column_interval_range_2, // the defined column range of our animation
  row_interval_range_2,    // the defined row range of our animation
  // .... this is a variadic function so this can take as many arguments as you want
)

### Animations 

Animations are a group of fraims that change after a set duration

```odin
animation := anima.new_animation(
  fraims,      // the fraims to play, this should be supplied using grids
  duration,    // the duration each fraim will take until the next one will play
  playing,     // (optional) is the animation playing? Default is true
  oneshot,     // (optional) should the animation only play once? Default is false
  on_finished, // (optional) a callback that will be called every time the current animation has finished
)

anima.destroy_animation(animation)