157 lines
3.4 KiB
C++
157 lines
3.4 KiB
C++
#include "World.h"
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#include <GL/freeglut.h>
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#include "Entity.h"
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#include "LevelObject.h"
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#include "json.h"
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#include <fstream>
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#include <iostream>
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World::World() : player(Player::getInstance())
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{
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std::ifstream file("worlds/world1.json");
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if(!file.is_open())
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std::cout<<"Uhoh, can't open file\n";
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json::Value v = json::readJson(file);
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file.close();
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heightmap = new HeightMap(v["world"]["heightmap"].asString());
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heightmap->SetTexture(v["world"]["texture"].asString());
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player.position.x = v["player"]["startposition"][0];
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player.position.y = v["player"]["startposition"][1];
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player.position.z = v["player"]["startposition"][2];
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for (auto object : v["objects"])
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{
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bool hasCollision = true;
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if (!object["collide"].isNull())
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hasCollision = object["collide"].asBool();
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Vec3f rotation(0, 0, 0);
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if(!object["rot"].isNull())
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rotation = Vec3f(object["rot"][0], object["rot"][1], object["rot"][2]);
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float scale = 1;
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if (!object["scale"].isNull())
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scale = object["scale"].asFloat();
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Vec3f position(object["pos"][0], object["pos"][1], object["pos"][2]);
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entities.push_back(new LevelObject(object["file"], position, rotation, scale, hasCollision));
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}
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//look up table for the enemies
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std::vector<std::pair<int, std::string>>enemy_models;
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for (auto enemy_model : v["enemy_models"])
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{
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int id = -1;
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if (!enemy_model["id"].isNull())
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id = enemy_model["id"].asInt();
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std::string fileName = "";
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if (!enemy_model["file"].isNull())
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fileName = enemy_model["file"].asString();
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enemy_models.push_back(std::pair<int, std::string>(id,fileName));
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}
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for (auto enemy : v["enemy_data"])
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{
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int id = -1;
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if (!enemy["id"].isNull())
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id = enemy["id"];
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for (auto enemy_model : enemy_models)
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{
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if (id == enemy_model.first)
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{
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Vec3f position(0, 0, 0);
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if (!enemy["pos"].isNull())
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position = Vec3f(enemy["pos"][0], enemy["pos"][1], enemy["pos"][2]);
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Vec3f rotation(0, 0, 0);
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if (!enemy["rot"].isNull())
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rotation = Vec3f(enemy["rot"][0], enemy["rot"][1], enemy["rot"][2]);
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float scale = 1.0f;
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if (!enemy["scale"].isNull())
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scale = enemy["scale"].asFloat();
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enemies.push_back(new Enemy(enemy_model.second,position,rotation,scale,true));
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}
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}
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}
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}
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World::~World()
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{
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}
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void World::draw()
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{
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player.setCamera();
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float lightPosition[4] = { 0, 2, 1, 0 };
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glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);
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float lightAmbient[4] = { 0.5, 0.5, 0.5, 1 };
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glLightfv(GL_LIGHT0, GL_AMBIENT, lightAmbient);
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glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
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heightmap->Draw();
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for (auto &enemy : enemies)
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enemy->draw();
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for (auto &entity : entities)
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entity->draw();
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}
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void World::update(float elapsedTime)
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{
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for (auto &entity : entities)
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entity->update(elapsedTime);
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for (auto &enemy : enemies)
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{
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if (enemy->position.Distance(player.position) <= enemy->radius)
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{
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enemy->hasTarget = true;
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enemy->target.x = player.position.x;
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enemy->target.z = player.position.z;
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}
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else
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enemy->hasTarget = false;
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Vec3f oldpos = enemy->position;
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enemy->update(elapsedTime);
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if (enemy->hasTarget)
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{
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for (auto e : entities)
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{
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if (e->canCollide && e->inObject(enemy->position))
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{
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enemy->position = oldpos;
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break;
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}
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}
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}
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}
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}
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bool World::isPlayerPositionValid()
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{
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for (auto e : entities)
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{
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if (e->canCollide && e->inObject(player.position))
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return false;
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}
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return true;
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}
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