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/*
* Copyright 2022 Frederico de Oliveira Linhares
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "sprite.h"
#include "sprite_implementation.h"
#include <mruby/hash.h>
#include "point.h"
#include "texture.h"
// This variable works as a constant
static mrb_sym id_at_texture;
void
cg_free_sprite(mrb_state *mrb, void* obj)
{
struct cg_sprite *ptr = obj;
mrb_free(mrb, ptr);
}
const struct mrb_data_type cg_sprite_type = {
"CG_Sprite", cg_free_sprite };
static mrb_value
cg_cSrpite_load_yaml(mrb_state *mrb, mrb_value klass)
{
const char *file_path;
struct cg_SpriteArray_s sprite_ary;
mrb_value hash, texture;
mrb_get_args(mrb, "zo", &file_path, &texture);
if(!cg_SpriteArray_constructor(&sprite_ary, file_path))
mrb_raise(mrb, E_RUNTIME_ERROR, "failed to open sprites");
hash = mrb_hash_new_capa(mrb, sprite_ary.len);
for(int i = 0; i < sprite_ary.len; i++)
{
mrb_hash_set(
mrb, hash,
mrb_symbol_value(mrb_intern_cstr(mrb, sprite_ary.sprites[i].name)),
mrb_funcall(
mrb, klass, "new", 5,
texture,
mrb_int_value(mrb, sprite_ary.sprites[i].x),
mrb_int_value(mrb, sprite_ary.sprites[i].y),
mrb_int_value(mrb, sprite_ary.sprites[i].width),
mrb_int_value(mrb, sprite_ary.sprites[i].height)));
}
cg_SpriteArray_destructor(&sprite_ary);
return hash;
}
static mrb_value
cg_cSprite_initialize(mrb_state *mrb, mrb_value self)
{
mrb_value texture_v;
mrb_int x, y, width, height;
struct cg_sprite *ptr;
mrb_get_args(mrb, "oiiii", &texture_v, &x, &y, &width, &height);
ptr = (struct cg_sprite *)DATA_PTR(self);
if(ptr) mrb_free(mrb, ptr);
ptr = (struct cg_sprite *)mrb_malloc(mrb, sizeof(struct cg_sprite));
mrb_iv_set(mrb, self, id_at_texture, texture_v);
ptr->rect.x = x;
ptr->rect.y = y;
ptr->rect.w = width;
ptr->rect.h = height;
mrb_data_init(self, ptr, &cg_sprite_type);
return self;
}
static mrb_value
cg_cSprite_texture(mrb_state *mrb, mrb_value self)
{
return mrb_iv_get(mrb, self, id_at_texture);
}
static mrb_value
cg_cSprite_width(mrb_state *mrb, mrb_value self)
{
struct cg_sprite *ptr;
ptr = (struct cg_sprite *)DATA_PTR(self);
return mrb_int_value(mrb, ptr->rect.w);
}
static mrb_value
cg_cSprite_height(mrb_state *mrb, mrb_value self)
{
struct cg_sprite *ptr;
ptr = (struct cg_sprite *)DATA_PTR(self);
return mrb_int_value(mrb, ptr->rect.h);
}
static mrb_value
cg_cSprite_draw(mrb_state *mrb, mrb_value self)
{
SDL_Rect dst_rect;
mrb_value texture_v;
struct cg_sprite *ptr;
struct cg_texture *texture_ptr;
struct cg_point *point;
mrb_get_args(mrb, "d", &point, &cg_point_type);
ptr = (struct cg_sprite *)DATA_PTR(self);
texture_v = mrb_iv_get(mrb, self, id_at_texture);
texture_ptr = (struct cg_texture *)DATA_PTR(texture_v);
dst_rect.x = point->data.x;
dst_rect.y = point->data.y;
dst_rect.w = ptr->rect.w;
dst_rect.h = ptr->rect.h;
SDL_RenderCopy(cg_core.renderer, texture_ptr->data, &ptr->rect, &dst_rect);
return self;
}
static mrb_value
cg_cSprite_draw_xy(mrb_state *mrb, mrb_value self)
{
SDL_Rect dst_rect;
mrb_value texture_v;
mrb_int x, y;
struct cg_sprite *ptr;
struct cg_texture *texture_ptr;
mrb_get_args(mrb, "ii", &x, &y);
ptr = (struct cg_sprite *)DATA_PTR(self);
texture_v = mrb_iv_get(mrb, self, id_at_texture);
texture_ptr = (struct cg_texture *)DATA_PTR(texture_v);
dst_rect.x = x;
dst_rect.y = y;
dst_rect.w = ptr->rect.w;
dst_rect.h = ptr->rect.h;
SDL_RenderCopy(cg_core.renderer, texture_ptr->data, &ptr->rect, &dst_rect);
return self;
}
void
cg_sprite_init(mrb_state *mrb)
{
struct RClass *cg_m, *cg_cSprite;
id_at_texture = mrb_intern_lit(mrb, "@texture");
cg_m = mrb_module_get(mrb, "CandyGear");
cg_cSprite = mrb_define_class_under(mrb, cg_m, "Sprite", mrb->object_class);
MRB_SET_INSTANCE_TT(cg_cSprite, MRB_TT_DATA);
mrb_define_class_method(
mrb, cg_cSprite, "load_yaml", cg_cSrpite_load_yaml, MRB_ARGS_REQ(2));
mrb_define_method(
mrb, cg_cSprite, "initialize", cg_cSprite_initialize, MRB_ARGS_REQ(5));
mrb_define_method(
mrb, cg_cSprite, "texture", cg_cSprite_texture, MRB_ARGS_NONE());
mrb_define_method(
mrb, cg_cSprite, "width", cg_cSprite_width, MRB_ARGS_NONE());
mrb_define_method(
mrb, cg_cSprite, "height", cg_cSprite_height, MRB_ARGS_NONE());
mrb_define_method(
mrb, cg_cSprite, "draw", cg_cSprite_draw, MRB_ARGS_REQ(1));
mrb_define_method(
mrb, cg_cSprite, "draw_xy", cg_cSprite_draw_xy, MRB_ARGS_REQ(2));
}
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