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#include "inventorysystem.h"
#include "Game/Components/CollisionComponents/CollisionComponent.h"
#include "Game/Components/drawcomponent.h"
#include "Game/Components/transformcomponent.h"
#include "Game/GameObjects/GameObject.h"
#include "Game/GameWorld.h"
#include <memory>
InventorySystem::InventorySystem(std::map<std::string, std::shared_ptr<GameObject>>& dynamic_gameobjects,
std::map<std::string, std::shared_ptr<GameObject>>& all_gameobjects,
std::map<std::string, std::vector<std::shared_ptr<GameObject>>>& lootables,
std::map<int, Input>& input_map,
std::shared_ptr<Camera>& camera,
std::set<std::string>& m_shownScreens):
m_dynamic_gameobjects(dynamic_gameobjects),
m_input_map(input_map),
m_camera(camera),
m_lootables(lootables),
m_shownScreens(m_shownScreens),
m_all_gameobjects(all_gameobjects)
{
int m_bamboo_count = 0;
m_screenVAO = Global::graphics.makeVAO(m_quadPos);
//m_texID = Global::graphics.loadTextureFromFile("/Users/jesswan/Desktop/cs1950u/cs1950u-jjesswan/Resources/Images/enterbutton.png").textureID;
initializeInventory("mushroom",
"/Users/jesswan/Desktop/cs1950u/cs1950u-jjesswan/Resources/Images/mushroom_loot.png",
"/Users/jesswan/Desktop/cs1950u/cs1950u-jjesswan/Resources/Images/mushroom_loot.png");
initializeInventory("amantia",
"/Users/jesswan/Desktop/cs1950u/cs1950u-jjesswan/Resources/Images/amantia_loot.png",
"/Users/jesswan/Desktop/cs1950u/cs1950u-jjesswan/Resources/Images/amantia_loot.png");
TextureData sparkle = Global::graphics.loadTextureFromFile("/Users/jesswan/Desktop/cs1950u/cs1950u-jjesswan/Resources/Images/sparkle.png");
m_sparkle = std::make_shared<UIDisplay>(sparkle, glm::vec2(0.f), glm::vec2(.05f), m_shownScreens, AspectRatio::LAND_FIT);
}
InventorySystem::~InventorySystem(){
glDeleteVertexArrays(1, &m_screenVAO);
}
void InventorySystem::initializeInventory(std::string itemName, const char* label_filename, const char* inventory_filename){
std::shared_ptr<InventoryItem> inventoryItem = std::make_shared<InventoryItem>(label_filename, inventory_filename, glm::vec2(.2f), glm::vec2(.5f), m_shownScreens);
m_inventoryItems.insert({itemName, inventoryItem});
}
void InventorySystem::addToInventory(std::shared_ptr<GameObject> &go){
// if G is pressed down, remove go from screen and add it to the inventory
if (m_input_map.at(GLFW_KEY_P).isActive){
if (go->hasComponent<DrawComponent>()){
go->removeComponent<DrawComponent>();
go->removeComponent<CollisionComponent>();
m_bamboo_count += 1;
}
}
}
bool InventorySystem::withinPlayerReach(const std::shared_ptr<GameObject> &go){
glm::vec3 player_pos = m_dynamic_gameobjects.at("player")->getComponent<TransformComponent>()->getPos();
// be careful --> the below line will crash if its attempting to get an object with multiple
// transforms, like the ground!
glm::vec3 go_pos = go->getComponent<TransformComponent>()->getPos();
float vicinity = 3.f;
// is player and game object are close in either x or z dir
if ((abs(player_pos.x - go_pos.x) < vicinity)
&& (abs(player_pos.z - go_pos.z) < vicinity)
&& (abs(player_pos.y - go_pos.y) < vicinity)){
return true;
}
return false;
}
void InventorySystem::drawUIText(){
Global::graphics.drawUIText(Global::graphics.getFont("opensans"), std::to_string(m_bamboo_count) + " bamboo collected.", glm::ivec2(20, 90), AnchorPoint::TopLeft, Global::graphics.getFramebufferSize().x, 0.2f, 0.1f, glm::vec3(1, 1, 1));
Global::graphics.drawUIText(Global::graphics.getFont("opensans"), "Collect 20 bamboos to clear the game.", glm::ivec2(20, 110), AnchorPoint::TopLeft, Global::graphics.getFramebufferSize().x, 0.2f, 0.1f, glm::vec3(1, 1, 1));
if (m_bamboo_count >= 20){
Global::graphics.drawUIText(Global::graphics.getFont("opensans"), "You Won! Press 'R' to restart.", glm::ivec2(200, 300), AnchorPoint::TopLeft, Global::graphics.getFramebufferSize().x, 0.4f, 0.4f, glm::vec3(1, 1, 1));
}
}
void InventorySystem::draw(){
// bind shader
Global::graphics.bindShader("inventory");
// for window resizing
Global::graphics.setCameraData(m_camera);
// enable alpha blending
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// disable depth testing
glDisable(GL_DEPTH_TEST);
// for every item in inventory, compute screen coordinates and draw if near player and on the screen
glm::mat4 proj = m_camera->getProjection();
glm::mat4 view = m_camera->getView();
// if home page is rendered
if (m_shownScreens.contains("home")){
glBindVertexArray(m_screenVAO);
glEnableVertexAttribArray(0);
for (auto &lootID : m_lootables){
for (auto &lootObject : lootID.second){
glm::vec3 pos = lootObject->getComponent<TransformComponent>()->getMT()->getPos();
glm::vec4 projected = proj*view*glm::vec4(pos, 1.f);
glm::vec2 screen = glm::vec2(projected.x/projected.w, projected.y/projected.w);
// if visible on screen
if ((-1.f < screen.x && screen.x < 1.f) && (-1.f < screen.y && screen.y < 1.f)){
// update texture pos, and draw associated texture
if (withinPlayerReach(lootObject)){
// update pos
m_inventoryItems[lootID.first]->updateWorldLabelPos(screen + m_offset);
// get uniforms
glm::mat4 transMat = m_inventoryItems[lootID.first]->getWorldLabelTransformationMat();
GLuint texID = m_inventoryItems[lootID.first]->getWorldLabelTexID();
float texAspect = m_inventoryItems[lootID.first]->getWorldLabelTexAspect();
glActiveTexture(GL_TEXTURE6);
glBindTexture(GL_TEXTURE_2D, texID);
glm::vec2 texScale = glm::vec2(1.f, texAspect);
glUniform2f(glGetUniformLocation(Global::graphics.getShaderID("inventory"), "textureScale"), texScale.x, texScale.y);
glUniformMatrix4fv(glGetUniformLocation(Global::graphics.getShaderID("inventory"), "transform"), 1, GL_FALSE, glm::value_ptr(transMat[0]));
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
}
// draw sparkle
else {
// update pos
m_sparkle->setPos(screen);
// get uniforms
glm::mat4 transMat = m_sparkle->getTransformationMat();
GLuint texID = m_sparkle->getTexID();
float texAspect = m_sparkle->getTextureScaleAspect();
glActiveTexture(GL_TEXTURE6);
glBindTexture(GL_TEXTURE_2D, texID);
glm::vec2 texScale = glm::vec2(1.f/texAspect, 1.f);
glUniform2f(glGetUniformLocation(Global::graphics.getShaderID("inventory"), "textureScale"), texScale.x, texScale.y);
glUniformMatrix4fv(glGetUniformLocation(Global::graphics.getShaderID("inventory"), "transform"), 1, GL_FALSE, glm::value_ptr(transMat[0]));
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
}
}
}
}
glDisableVertexAttribArray(0);
glBindVertexArray(0);
}
glDisable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
}
void InventorySystem::update(double deltaTime){
// remove from m_lootables to remove labels and drawing
for (auto &lootGroup : m_lootables){
for (auto itr = lootGroup.second.begin(); itr != lootGroup.second.end();){
auto& loot = *itr;
if (withinPlayerReach(loot) && m_input_map.at(GLFW_KEY_P).isActive){
loot->removeComponent<DrawComponent>();
itr = lootGroup.second.erase(itr);
} else {
++itr;
}
}
}
// remove game object entirely based on if its not drawn
// for(auto it = m_all_gameobjects.begin(); it != m_all_gameobjects.end();){
// if (!it->second->hasComponent<DrawComponent>()){
// it = m_all_gameobjects.erase(it);
// }
// }
}
void InventorySystem::onWindowResize(int width, int height){
for (auto &lootID : m_lootables){
m_inventoryItems[lootID.first]->getUIDisplay()->setWindowPos(width, height);
}
}
void InventorySystem::scrollEvent(double distance){}
void InventorySystem::mousePosEvent(double xpos, double ypos){}
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