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package draw
import "core:log"
import rl "vendor:raylib"
Sprite :: struct {
image: rl.Texture2D,
anim: Animation,
active_anim: u32,
frame_time: f32,
current_frame: i32,
width: i32,
height: i32,
pos: Vec2,
offset: Vec2,
rotation: f32,
scale: Vec2,
}
init_sprite :: proc(
sprite: ^Sprite,
path: string,
anim: Animation = {},
) -> bool {
byte_path := make([]u8, len(path) + 1, context.temp_allocator)
copy(byte_path, path)
byte_path[len(path)] = 0
sprite.image = rl.LoadTexture(transmute(cstring)&byte_path[0])
sprite.anim = anim
sprite.width = i32(int(sprite.image.width) / len(sprite.anim.frames))
sprite.height = i32(sprite.image.height)
sprite.scale = Vec2{1, 1}
log.debugf(
"loaded sprite '%v' %vx%v (%vx%v)",
path,
sprite.width, sprite.height,
sprite.image.width, sprite.image.height,
)
return true
}
destroy_sprite :: proc(sprite: Sprite) {
rl.UnloadTexture(sprite.image)
}
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
}
}
sprite :: proc(
sprite: Sprite,
) {
frame := sprite.anim.frames[sprite.current_frame]
texture_quad(
sprite.image,
Rect {
Vec2{f32(frame.rect.x), f32(frame.rect.y)},
Vec2{f32(frame.rect.w), f32(frame.rect.h)},
},
sprite.pos,
sprite.offset,
sprite.rotation,
sprite.scale,
)
}
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