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czlc/sprite.c

Created February 24, 2016 05:57
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Revisions

  1. czlc created this gist Feb 24, 2016.
    33 changes: 33 additions & 0 deletions sprite.c
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,33 @@
    union {
    struct sprite * children[1];
    struct rich_text * rich_text;
    int scissor;
    struct anchor_data *anchor;
    struct pack_polygon *polygon;
    } data;


    int
    sprite_size(struct sprite_pack *pack, int id) {
    else if (type == TYPE_POLYGON) {
    offset_t *data = OFFSET_TO_POINTER(offset_t, pack, pack->data);
    struct pack_polygon_data * poly = OFFSET_TO_POINTER(struct pack_polygon_data, pack, data[id]);
    return sizeof(struct sprite) + sizeof (pack_polygon) + (poly->n - 1) * sizeof(struct pack_poly *) ;
    }
    }

    void
    sprite_init(struct sprite * s, struct sprite_pack * pack, int id, int sz) {
    else if (s->type == TYPE_POLYGON) {
    struct pack_polygon_data * polygon = (struct pack_polygon_data *)s->s.poly;
    s->data.polygon = (struct pack_polygon *)(s + 1);
    s->data.polygon->n = polygon->n;
    int i;
    for (i=0; i<polygon->n; i++) {
    s->data.polygon->poly[i].texture_coord = OFFSET_TO_POINTER(uv_t, pack, polygon->poly[i].texture_coord);
    s->data.polygon->poly[i].screen_coord = OFFSET_TO_POINTER(int32_t, pack, polygon->poly[i].screen_coord);
    s->data.polygon->poly[i].texid = polygon->poly[i].texid;
    s->data.polygon->poly[i].n = polygon->poly[i].n;
    }
    s->s.poly = s->data.polygon;
    }