//
// Lol Engine — EasyMesh tutorial
//
// Copyright © 2011—2019 Sam Hocevar <sam@hocevar.net>
// © 2012—2013 Benjamin “Touky” Huet <huet.benjamin@gmail.com>
//
// Lol Engine is free software. It comes without any warranty, to
// the extent permitted by applicable law. You can redistribute it
// and/or modify it under the terms of the Do What the Fuck You Want
// to Public License, Version 2, as published by the WTFPL Task Force.
// See http://www.wtfpl.net/ for more details.
//
#if HAVE_CONFIG_H
# include "config.h"
#endif
#include <lol/engine.h>
#include <lol/lua.h>
using namespace lol;
#define USE_CUSTOM_SHADER 1
#if USE_CUSTOM_SHADER
LOLFX_RESOURCE_DECLARE(easymesh_shiny);
#endif //USE_CUSTOM_SHADER
class EasyMeshTutorial : public WorldEntity
{
public:
EasyMeshTutorial()
{
EasyMeshLuaLoader EzMhLoader;
EzMhLoader.ExecLuaFile("05_easymesh.lua");
EasyMeshLuaObject* gears0 = EzMhLoader.GetPtr<EasyMeshLuaObject>("g0");
EasyMeshLuaObject* gears1 = EzMhLoader.GetPtr<EasyMeshLuaObject>("g1");
EasyMeshLuaObject* gears2 = EzMhLoader.GetPtr<EasyMeshLuaObject>("g2");
EasyMeshLuaObject* gears3 = EzMhLoader.GetPtr<EasyMeshLuaObject>("g3");
EasyMeshLuaObject* gears4 = EzMhLoader.GetPtr<EasyMeshLuaObject>("g4");
m_gears.push(gears0->GetMesh(), mat4(1.0f), 0.0f);
m_gears.push(gears1->GetMesh(), mat4(1.0f), 0.0f);
m_gears.push(gears2->GetMesh(), mat4(1.0f), 180.0f / 18);
m_gears.push(gears3->GetMesh(), mat4(1.0f), 180.0f / 18);
m_gears.push(gears4->GetMesh(), mat4(1.0f), 180.0f / 18);
/*
m_gears[0].m1.Compile("[sc#00f ab 8 1 8 ty -.25]"
"[sc#f9f scb#f9f acg 12 10 5 5 20 20 5 5 0.1 0 s .1 .1 .1 ty -.1 csgu]"
"[sc#fff scb#000 acg 12 10 10 10 20 20 5 5 0.1 0 s .05 .05 .05 tx -1.5 ty .3 csgu]"
"[sc#00f ab 5 3 9 tx 2.5 csgs]"
"[[ sc#fff ab 3 1.4 2 tx -2 tz -2 "
"[sc#fff ab 2.1 .7 1.1 ty .5 tx -1.4 tz -1.4 csgs] mz] csgu]");
m_gears[1].m1.Compile("sc#ff9 scb#ff9 acg 54 10 95 95 90 90 -5 -5 0.1 0 s .1 .1 .1");
m_gears[2].m1.Compile("[sc#0f0 ab 2 2 2 t .8 .8 .8 rx 20 ry 20 [sc#00f ab 2 2 2 tx 0 csgu]]");
m_gears[3].m1.Compile("[sc#0f0 ab 2 2 2 t .8 .8 .8 rx 20 ry 20 [sc#00f ab 2 2 2 tx 0 csgs]]");
m_gears[4].m1.Compile("[sc#0f0 ab 2 2 2 t .8 .8 .8 rx 20 ry 20 [sc#00f ab 2 2 2 tx 0 csga]]");
*/
m_angle = 0;
m_camera = new Camera();
m_camera->SetProjection(mat4::perspective(radians(30.f), 960.f, 600.f, .1f, 1000.f));
m_camera->SetView(mat4::lookat(vec3(-15.f, 5.f, 0.f),
vec3(0.f, -1.f, 0.f),
vec3(0.f, 1.f, 0.f)));
Scene& scene = Scene::GetScene();
scene.PushCamera(m_camera);
/* Add a white directional light */
m_light1 = new Light();
m_light1->SetPosition(vec3(0.2f, 0.2f, 0.f));
m_light1->SetColor(vec4(0.5f, 0.5f, 0.5f, 1.f));
m_light1->SetType(LightType::Directional);
Ticker::Ref(m_light1);
/* Add an orangeish point light */
m_light2 = new Light();
m_light2->SetPosition(vec3(-15.f, 15.f, 15.f));
m_light2->SetColor(vec4(0.4f, 0.3f, 0.2f, 1.f));
m_light2->SetType(LightType::Point);
Ticker::Ref(m_light2);
m_ready = false;
}
~EasyMeshTutorial()
{
Scene& scene = Scene::GetScene();
scene.PopCamera(m_camera);
Ticker::Unref(m_light1);
Ticker::Unref(m_light2);
}
virtual void tick_game(float seconds)
{
WorldEntity::tick_game(seconds);
m_angle += seconds * radians(70.0f);
m_mat = mat4::rotate(radians(10.0f), vec3(0, 0, 1))
* mat4::rotate(radians(100.f), vec3(0, 1, 0));
// * mat4::rotate(m_angle, vec3(0, 1, 0));
m_gears[0].m3 += seconds * radians(20.0f);
m_gears[1].m3 += seconds * radians(20.0f) * -2 / 9;
m_gears[2].m3 += seconds * radians(20.0f) * -2 / 3;
m_gears[3].m3 += seconds * radians(20.0f) * -2 / 3;
m_gears[4].m3 += seconds * radians(20.0f) * -2 / 3;
m_gears[0].m2 = mat4::translate(vec3(0, -1, 0))
* mat4::rotate(m_gears[0].m3 - 130.0f, vec3(0, 1, 0))
* mat4::rotate(40.0f, vec3(0, 0, 1));
m_gears[1].m2 = mat4::translate(vec3(0, 0, 0))
* mat4::rotate(m_gears[1].m3, vec3(0, 1, 0));
m_gears[2].m2 = mat4::translate(vec3(0, 0, 5.5f))
* mat4::rotate(m_gears[2].m3 - 40.0f, vec3(0, 1, 0))
* mat4::rotate(90.0f, vec3(0, 0, 1));
m_gears[3].m2 = mat4::translate(vec3(5.5f * lol::sqrt(3.f) * 0.5f, 0, -5.5f * 0.5f))
* mat4::rotate(m_gears[3].m3 - 140.0f, vec3(0, 1, 0))
* mat4::rotate(-70.0f, vec3(0, 0, 1));
m_gears[4].m2 = mat4::translate(vec3(-5.5f * lol::sqrt(3.f) * 0.5f, 0, -5.5f * 0.5f))
* mat4::rotate(m_gears[4].m3 - 80.0f, vec3(0, 1, 0));
}
virtual void tick_draw(float seconds, Scene &scene)
{
WorldEntity::tick_draw(seconds, scene);
if (!m_ready)
{
scene.get_renderer()->SetClearColor(vec4(0.0f, 0.0f, 0.0f, 1.0f));
/* Upload vertex data to GPU */
for (int i = 0; i < m_gears.count(); i++)
m_gears[i].m1.MeshConvert();
#if USE_CUSTOM_SHADER
/* Custom Shader: Init the shader */
auto custom_shader = Shader::Create(LOLFX_RESOURCE_NAME(easymesh_shiny));
// any other shader stuf here (Get uniform, mostly, and set texture)
for (int i = 0; i < m_gears.count(); i++)
m_gears[i].m1.SetMaterial(custom_shader);
#endif
m_ready = true;
}
for (int i = 0; i < m_gears.count(); i++)
{
m_gears[i].m1.Render(scene, m_mat * m_gears[i].m2);
}
}
private:
array<EasyMesh, mat4, float> m_gears;
float m_angle;
mat4 m_mat;
Camera *m_camera;
Light *m_light1, *m_light2;
bool m_ready;
};
int main(int argc, char **argv)
{
sys::init(argc, argv);
Application app("Tutorial 5: EasyMesh", ivec2(960, 600), 60.0f);
new EasyMeshTutorial();
app.Run();
return EXIT_SUCCESS;
}