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package draw
import "core:fmt"
import "core:image"
import "core:image/qoi"
import sg "shared:sokol/gfx"
Sprite :: struct {
image: sg.Image,
anim: Animation,
active_anim: u32,
frame_time: f32,
current_frame: i32,
}
init_sprite :: proc(
sprite: ^Sprite,
path: string,
anim: Animation = {},
) -> bool {
fmt.println(path)
img, img_err := qoi.load_from_file(path)
if img_err != nil {
fmt.println("could not load image")
return false
}
defer image.destroy(img)
sprite.image = sg.make_image({
width = i32(img.width),
height = i32(img.height),
data = {
mip_levels = {
0 = {ptr=&img.pixels.buf[0], size=len(img.pixels.buf)},
},
},
})
sprite.anim = anim
return true
}
set_sprite_active_tag :: proc(sprite: ^Sprite, tag_name: string) {
sprite.active_anim = sprite.anim.frame_tags_indices[tag_name]
}
update_sprite :: proc(sprite: ^Sprite, dt: f32) {
sprite.frame_time += dt
tag := sprite.anim.frame_tags[sprite.active_anim]
frame := sprite.anim.frames[sprite.current_frame]
duration := f32(frame.duration) / 1000
if sprite.frame_time > duration {
sprite.frame_time -= duration
sprite.current_frame += 1
}
if sprite.current_frame < tag.from {
sprite.current_frame = tag.to
}
if sprite.current_frame > tag.to {
sprite.current_frame = tag.from
}
}
draw_sprite :: proc(
r: ^Renderer,
sprite: Sprite,
pos: Vec2,
offset := Vec2{0, 0},
scale := Vec2{1, 1},
) {
frame := sprite.anim.frames[sprite.current_frame]
draw_texture(
r,
sprite.image,
Rect {
Vec2{f32(frame.rect.x), f32(frame.rect.y)},
Vec2{f32(frame.rect.w), f32(frame.rect.h)},
},
pos,
offset,
scale,
)
}
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