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#include <inventory.hpp>
#include <common.hpp>
#include <events.hpp>
#include <texture.hpp>
#include <render.hpp>
#include <ui.hpp>
#include <unordered_map>
#include <tinyxml2.h>
using namespace tinyxml2;
constexpr const char* itemsPath = "config/items.xml";
static std::unordered_map<std::string, Item> itemList;
void InventorySystem::configure(entityx::EventManager &ev)
{
ev.subscribe<KeyDownEvent>(*this);
}
void InventorySystem::loadItems(void) {
XMLDocument doc;
doc.LoadFile(itemsPath);
auto item = doc.FirstChildElement("item");
if (item == nullptr)
UserError("No items found");
do {
itemList.emplace(item->StrAttribute("name"), item);
item = item->NextSiblingElement("item");
} while (item != nullptr);
}
void InventorySystem::update(entityx::EntityManager &en, entityx::EventManager &ev, entityx::TimeDelta dt)
{
(void)en;
(void)ev;
(void)dt;
}
void InventorySystem::render(void)
{
// calculate positions
items.front().loc = vec2(offset.x - 35 * items.size(), offset.y - game::SCREEN_HEIGHT / 2);
for (unsigned int i = 1; i < items.size(); i++)
items[i].loc = vec2(items[i - 1].loc.x + 70, items[i - 1].loc.y);
// draw items
for (const auto& i : items) {
// draw the slot
Render::textShader.use();
Render::textShader.enable();
Colors::black.use();
glUniform4f(Render::textShader.uniform[WU_tex_color], 1, 1, 1, .8);
glVertexAttribPointer(Render::textShader.tex, 2, GL_FLOAT, GL_FALSE, 0, Colors::texCoord);
vec2 end = i.loc + 64;
GLfloat coords[18] = {
i.loc.x, i.loc.y, -7, end.x, i.loc.y, -7, end.x, end.y, -7,
end.x, end.y, -7, i.loc.x, end.y, -7, i.loc.x, i.loc.y, -7
};
glVertexAttribPointer(Render::textShader.coord, 3, GL_FLOAT, GL_FALSE, 0, coords);
glDrawArrays(GL_TRIANGLES, 0, 6);
glUniform4f(Render::textShader.uniform[WU_tex_color], 1, 1, 1, 1);
// draw the item
if (i.item != nullptr) {
i.item->sprite.use();
static const GLfloat tex[12] = {0,1,1,1,1,0,1,0,0,0,0,1};
glVertexAttribPointer(Render::textShader.tex, 2, GL_FLOAT, GL_FALSE, 0, tex);
vec2 end = i.loc + i.item->sprite.getDim();
GLfloat coords[18] = {
i.loc.x, i.loc.y, -7.1, end.x, i.loc.y, -7.1, end.x, end.y, -7.1,
end.x, end.y, -7.1, i.loc.x, end.y, -7.1, i.loc.x, i.loc.y, -7.1
};
glVertexAttribPointer(Render::textShader.coord, 3, GL_FLOAT, GL_FALSE, 0, coords);
glDrawArrays(GL_TRIANGLES, 0, 6);
ui::setFontZ(-7.2);
ui::putText(i.loc.x, i.loc.y, std::to_string(i.count).c_str());
ui::setFontZ(-6);
}
}
Render::textShader.disable();
Render::textShader.unuse();
}
void InventorySystem::receive(const KeyDownEvent &kde)
{
(void)kde;
}
void InventorySystem::add(const std::string& name, int count)
{
for (auto& i : items) {
if (i.count == 0) {
i.item = &itemList[name];
i.count = count;
break;
}
}
}
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