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/**
* @file world.cpp
*
* Copyright (C) 2019 Belle-Isle, Andrew <drumsetmonkey@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "world.hpp"
#include "events/world.hpp"
/*****************
* WORLD CLASS *
*****************/
/* CONSTRUCTORS */
World::World(sol::object param)
{
if (param.get_type() == sol::type::table) {
sol::table tab = param;
if (tab["Seed"] == sol::type::number) {
seed = tab["Seed"];
}
if (tab["Layers"] == sol::type::number) {
layers = tab["Layers"];
}
if (tab["Register"] == sol::type::function) {
registerMat = tab["Register"];
}
if (tab["Generate"] == sol::type::function) {
generate = tab["Generate"];
}
} else {
// TODO better logging
std::cerr << "World paramaters must be stored in a table" << std::endl;
}
// If there is a register function, we should call it here
if (registerMat != sol::nil)
registerMat(this);
// If a generate function is defined, call it
if (generate != sol::nil)
generate(this);
std::cout << "flamingo" << std::endl;
}
// TODO
std::tuple<unsigned int, unsigned int, unsigned int>
World::getSize()
{
//return {width, height, layers};
return {0, 0, 0};
}
/* RENDERING */
void World::generateMesh()
{
for (auto &l : solidLayers) {
// Preallocate size of vertexes
float Z = l.drawLayer;
auto to = l.texture.offset;
auto ts = l.texture.size;
float tr = 1.0f;
float w = l.texture.width/unitSize;
float h = l.texture.height/unitSize;
GLfloat mesh[36] = {0 , 0 , Z, to.x , to.y+ts.y, tr,
0+w, 0 , Z, to.x+ts.x, to.y+ts.y, tr,
0 , 0+h, Z, to.x , to.y , tr,
0+w, 0 , Z, to.x+ts.x, to.y+ts.y, tr,
0+w, 0+h, Z, to.x+ts.x, to.y , tr,
0 , 0+h, Z, to.x , to.y , tr};
glBindBuffer(GL_ARRAY_BUFFER, l.layerVBO);
glBufferData(GL_ARRAY_BUFFER,
36 * sizeof(GLfloat),
mesh,
GL_STATIC_DRAW);
meshAdd.push_back(WorldMeshUpdateEvent(l.layerVBO,
l.texture.tex,
l.normal.tex,
36));
}
for (auto &l : drawLayers) {
(void)l;
}
}
/* SEED */
unsigned int World::getSeed()
{
return seed;
}
unsigned int World::setSeed(unsigned int s)
{
seed = s;
return seed;
}
/* PHYSICS */
double World::getHeight(double x, double y, double z)
{
(void)x;
(void)y;
(void)z;
double Y = 10.0f;
return Y;
}
/*********
* NEW *
*********/
void World::registerLayer(float z, sol::object obj)
{
if (obj.get_type() == sol::type::table) {
sol::table tab = obj;
solidLayers.push_back(SolidLayer(z, tab));
} else {
throw std::string("Layer must receive a table");
}
generateMesh();
}
void World::registerDecoLayer(float z, sol::object obj)
{
if (obj.get_type() == sol::type::table) {
sol::table tab = obj;
drawLayers.push_back(Layer(z, tab));
} else {
throw std::string("Layer must receive a table");
}
generateMesh();
}
/******************
* WORLD SYSTEM *
******************/
World* WorldSystem::addWorld(sol::object t)
{
worlds.push_back(World(t));
return &(worlds.back());
}
void WorldSystem::configure([[maybe_unused]]entityx::EntityManager& entities,
[[maybe_unused]]entityx::EventManager& events)
{
}
void WorldSystem::update([[maybe_unused]]entityx::EntityManager& entities,
[[maybe_unused]]entityx::EventManager& events,
[[maybe_unused]]entityx::TimeDelta dt)
{
if (currentWorld == nullptr) {
currentWorld = &(worlds.front());
events.emit<WorldChangeEvent>(currentWorld);
}
for (auto &ma : currentWorld->meshAdd) {
events.emit<WorldMeshUpdateEvent>(ma);
}
currentWorld->meshAdd.clear();
}
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