//
// Lol Engine - EasyMesh tutorial
//
// Copyright: (c) 2011-2013 Sam Hocevar <sam@hocevar.net>
// (c) 2012-2013 Benjamin "Touky" Huet <huet.benjamin@gmail.com>
// This program is free software; 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 Sam Hocevar. See
// http://www.wtfpl.net/ for more details.
//
#if defined HAVE_CONFIG_H
# include "config.h"
#endif
#include <cfloat> /* for FLT_MAX */
#include "core.h"
using namespace std;
using namespace lol;
static int const TEXTURE_WIDTH = 256;
LOLFX_RESOURCE_DECLARE(shinyfur);
LOLFX_RESOURCE_DECLARE(shinymvtexture);
#define IPT_CAM_RESET "Cam_Center"
#define IPT_CAM_FORWARD "Cam_Forward"
#define IPT_CAM_BACKWARD "Cam_Backward"
#define IPT_CAM_ZOOM_OUT "Cam_Zoom_In"
#define IPT_CAM_ZOOM_IN "Cam_Zoom_Out"
#define IPT_MESH_UPDATE "Mesh_Update"
#define IPT_MESH_RESET "Mesh_Reset"
#define IPT_MESH_PREV "Mesh_Previous"
#define IPT_MESH_NEXT "Mesh_Next"
#define IPT_MESH_LEFT "Mesh_Left"
#define IPT_MESH_RIGHT "Mesh_Right"
#define IPT_MESH_UP "Mesh_Up"
#define IPT_MESH_DOWN "Mesh_Down"
#define IPT_MESH_SCALE_UP "Mesh_Scale_Up"
#define IPT_MESH_SCALE_DOWN "Mesh_Scale_Down"
#define IPT_MESH_OFFSET_UP "Mesh_Offset_Up"
#define IPT_MESH_OFFSET_DOWN "Mesh_Offset_Down"
#define IPT_MESH_ROT_LEFT "Mesh_Rot_Left"
#define IPT_MESH_ROT_RIGHT "Mesh_Rot_Right"
#define IPT_MESH_ROT_UP "Mesh_Rot_Up"
#define IPT_MESH_ROT_DOWN "Mesh_Rot_Down"
#define MIN_FOV 0.1f
#define WITH_FUR 0
#define WITH_TEXTURE 0
class MeshViewer : public WorldEntity
{
public:
void SetFov(float new_fov=60.0f, vec2 video_size = vec2(Video::GetSize()))
{
if (new_fov > MIN_FOV)
g_scene->GetCamera()->SetProjection(mat4::perspective(new_fov, video_size.x, video_size.y, .1f, 1000.f));
else
g_scene->GetCamera()->SetProjection(mat4::ortho(video_size.x, video_size.y, .1f, 1000.f));
}
MeshViewer(char const *file_name = "data/mesh-buffer.txt")
: m_file_name(file_name)
{
//Input setup
Input::LinkActionToKey(IPT_CAM_RESET, Key::Return);
Input::LinkActionToKey(IPT_CAM_ZOOM_IN, Key::PageUp);
Input::LinkActionToKey(IPT_CAM_ZOOM_OUT, Key::PageDown);
Input::LinkActionToKey(IPT_MESH_LEFT, Key::Left);
Input::LinkActionToKey(IPT_MESH_RIGHT, Key::Right);
Input::LinkActionToKey(IPT_MESH_UP, Key::Up);
Input::LinkActionToKey(IPT_MESH_DOWN, Key::Down);
Input::LinkActionToKey(IPT_MESH_UPDATE, Key::Space);
Input::LinkActionToKey(IPT_MESH_RESET, Key::KP0);
Input::LinkActionToKey(IPT_MESH_PREV, Key::KPPlus);
Input::LinkActionToKey(IPT_MESH_NEXT, Key::KPMinus);
Input::LinkActionToKey(IPT_MESH_OFFSET_DOWN, Key::KP1);
Input::LinkActionToKey(IPT_MESH_OFFSET_UP, Key::KP3);
Input::LinkActionToKey(IPT_MESH_SCALE_DOWN, Key::KP7);
Input::LinkActionToKey(IPT_MESH_SCALE_UP, Key::KP9);
Input::LinkActionToKey(IPT_MESH_ROT_LEFT, Key::KP4);
Input::LinkActionToKey(IPT_MESH_ROT_RIGHT, Key::KP6);
Input::LinkActionToKey(IPT_MESH_ROT_UP, Key::KP8);
Input::LinkActionToKey(IPT_MESH_ROT_DOWN, Key::KP5);
m_mesh_shown = 0;
m_angle = 0;
m_default_texture = NULL;
//Camera Setup
m_fov_zoom_damp = .0f;
m_fov_damp = 60.0f;
m_fov = 60.0f;
m_camera = new Camera();
SetFov(m_fov_damp);
m_camera->SetView(vec3(0.f, 0.f, 10.f),
vec3(0.f, 0.f, 0.f),
vec3(0.f, 1.f, 0.f));
g_scene->PushCamera(m_camera);
//Lights setup
m_lights << new Light();
m_lights.Last()->SetPosition(vec4(4.f, -1.f, -4.f, 0.f));
m_lights.Last()->SetColor(vec4(.0f, .2f, .5f, 1.f));
Ticker::Ref(m_lights.Last());
m_lights << new Light();
m_lights.Last()->SetPosition(vec4(8.f, 2.f, 6.f, 1.f));
m_lights.Last()->SetColor(vec4(.5f, .3f, .0f, 1.f));
Ticker::Ref(m_lights.Last());
//Speed damp
m_mesh_rotate_damp = vec2(.0f);
m_mesh_screen_move_damp = vec2(.0f);
m_mesh_move_damp = vec2(.0f);
//Actual values
SetDefaultMeshTransform();
//Actual values damp
m_mesh_rotation_damp = vec2(.0f);
m_mesh_screen_offset_damp = vec2(.0f);
m_mesh_offset_damp = vec2(.0f);
m_mat = mat4::rotate(m_mesh_rotation.x, vec3(1, 0, 0)) *
mat4::rotate(m_angle, vec3(0, 1, 0)) *
mat4::rotate(m_mesh_rotation.y, vec3(0, 1, 0));
m_stream_update_time = 2.0f;
m_stream_update_timer = 1.0f;
}
~MeshViewer()
{
g_scene->PopCamera(m_camera);
for (int i = 0; i < m_lights.Count(); ++i)
Ticker::Unref(m_lights[i]);
}
void SetDefaultMeshTransform()
{
m_mesh_rotation = vec2(25.0f, .0f);
m_mesh_screen_offset = vec2(.54f, .0f);
m_mesh_offset = vec2(-.64f, .07f);
}
virtual void TickGame(float seconds)
{
WorldEntity::TickGame(seconds);
//TODO : This should probably be "standard LoL behaviour"
{
//Shutdown logic
if (Input::WasReleased(Key::Escape))
Ticker::Shutdown();
}
//--
//Update Mesh BBox - Get the Min/Max needed
//--
vec2 screen_min_max[2] = { vec2(FLT_MAX), vec2(-FLT_MAX) };
vec3 cam_min_max[2] = { vec3(FLT_MAX), vec3(-FLT_MAX) };
vec3 world_min_max[2] = { vec3(FLT_MAX), vec3(-FLT_MAX) };
int mesh_id = m_meshes.Count() - 1;
for (; mesh_id >= 0; mesh_id--)
if (m_meshes[mesh_id].m2)
break;
mat4 world_cam = g_scene->GetCamera()->GetView();
mat4 cam_screen = g_scene->GetCamera()->GetProjection();
if (m_meshes.Count() && mesh_id >= 0)
{
for (int i = 0; i < m_meshes[mesh_id].m1.GetVertexCount(); i++)
{
//--
mat4 LocalPos = m_mat * mat4::translate(m_meshes[mesh_id].m1.GetVertexLocation(i));
vec3 vpos = LocalPos.v3.xyz;
world_min_max[0] = min(vpos.xyz, world_min_max[0]);
world_min_max[1] = max(vpos.xyz, world_min_max[1]);
//--
LocalPos = world_cam * LocalPos;
vpos = LocalPos.v3.xyz;
cam_min_max[0] = min(vpos.xyz, cam_min_max[0]);
cam_min_max[1] = max(vpos.xyz, cam_min_max[1]);
//--
LocalPos = cam_screen * LocalPos;
vpos = (LocalPos.v3 / LocalPos.v3.w).xyz;
screen_min_max[0] = min(vpos.xy, screen_min_max[0]);
screen_min_max[1] = max(vpos.xy, screen_min_max[1]);
}
}
else
{
world_min_max[1] = vec3(.0f);
world_min_max[0] = vec3(.0f);
cam_min_max[1] = vec3(.0f);
cam_min_max[0] = vec3(.0f);
screen_min_max[0] = vec2(.0f);
screen_min_max[1] = vec2(.0f);
}
//[0] : center, [1] : size.
vec3 BBox[2] = { vec3(.0f), vec3(.0f) };
BBox[1] = world_min_max[1] - world_min_max[0];
BBox[0] = world_min_max[0] + BBox[1] * .5f;
vec3 BBox_mod = BBox[1];
#if 0
//--
//Camera movement handling
//--
if (Input::WasReleased(IPT_CAM_RESET))
SetFov();
//Auto Fov
float local_max = max(max(lol::abs(world_min_max[0].x), lol::abs(world_min_max[0].y)),
max( lol::abs(world_min_max[1].x), lol::abs(world_min_max[1].y)));
float fov_ratio = max(max(lol::abs(screen_min_max[0].x), lol::abs(screen_min_max[0].y)),
max(lol::abs(screen_min_max[1].x), lol::abs(screen_min_max[1].y)));
//Fov modification
float fov_zoom = (float)(Input::GetStatus(IPT_CAM_ZOOM_OUT) - Input::GetStatus(IPT_CAM_ZOOM_IN));
m_fov_zoom_damp = damp(m_fov_zoom_damp, fov_zoom, (fov_zoom == .0f)?(.15f):(0.5f), seconds);
m_fov = max(.0f, m_fov + seconds * 10.0f * m_fov_zoom_damp);
m_fov_damp = damp(m_fov_damp, m_fov, .2f, seconds);
if (m_fov_damp < MIN_FOV)
{
vec2 tmp = vec2(Video::GetSize());
SetFov(0, vec2(local_max * 2.2f) * (tmp / vec2(tmp.y)));
}
else
SetFov(m_fov_damp);
//Move modification
vec3 campos = g_scene->GetCamera()->GetPosition();
if (m_fov_damp < MIN_FOV)
g_scene->GetCamera()->SetView(vec3(campos.xy, 10.f), quat(1.f));
else if (fov_ratio > .0f)
g_scene->GetCamera()->SetView(vec3(campos.xy, campos.z * fov_ratio * 1.1f), quat(1.f));
#else
Camera* cur_cam = g_scene->GetCamera();
vec3 min_max_diff = (cam_min_max[1] - cam_min_max[0]);
float screen_size = max(max(lol::abs(min_max_diff.x), lol::abs(min_max_diff.y)),
max( lol::abs(min_max_diff.x), lol::abs(min_max_diff.y)));
float fov_ratio = max(max(lol::abs(screen_min_max[0].x), lol::abs(screen_min_max[0].y)),
max(lol::abs(screen_min_max[1].x), lol::abs(screen_min_max[1].y)));
float fov_zoom = (float)(Input::GetStatus(IPT_CAM_ZOOM_OUT) - Input::GetStatus(IPT_CAM_ZOOM_IN));
m_fov_zoom_damp = damp(m_fov_zoom_damp, fov_zoom, (fov_zoom == .0f)?(.15f):(0.5f), seconds);
m_fov = max(.0f, m_fov + seconds * 10.0f * m_fov_zoom_damp);
m_fov_damp = damp(m_fov_damp, m_fov, .2f, seconds);
if (m_fov_damp < MIN_FOV)
cur_cam->SetProjection(mat4::ortho(screen_size * fov_ratio * 1.1f, 1600.f / 600.f, 1000.f));
else if (fov_ratio > .0f)
cur_cam->SetProjection(mat4::shifted_perspective(m_fov_damp, screen_size * fov_ratio * 1.1f, 1600.f / 600.f, 1000.f));
vec3 cam_center = cam_min_max[0] + min_max_diff * .5f;
vec4 test = inverse(world_cam) * vec4(.0f,.0f,-1.0f,1.f);
test = test;
test = inverse(world_cam) * vec4(.0f,.0f,.0f,1.f);
test = inverse(world_cam) * vec4(.0f,.0f,1.0f,1.f);
vec3 eye = (inverse(world_cam) * vec4(vec3(cam_center.xy, cam_min_max[1].z), 1.f)).xyz;
vec3 target = (inverse(world_cam) * vec4(vec3(cam_center.xy, cam_min_max[0].z), 1.f)).xyz;
if (eye == target)
cur_cam->SetView(vec3(.0f), vec3(.0f, .0f, -1.f), vec3(0.f, 1.f, 0.f));
else
cur_cam->SetView(eye, target, vec3(0,1,0));
#endif
//--
//Mesh movement handling
//--
if (Input::WasReleased(IPT_MESH_RESET))
SetDefaultMeshTransform();
m_mesh_shown += ((int)Input::WasReleased(IPT_MESH_NEXT)) - ((int)Input::WasReleased(IPT_MESH_PREV));
m_mesh_shown = clamp(m_mesh_shown, 0, max(m_meshes.Count(), 1) - 1);
vec2 new_move = vec2(.0f);
new_move = vec2((float)(Input::GetStatus(IPT_MESH_RIGHT) - Input::GetStatus(IPT_MESH_LEFT)),
(float)(Input::GetStatus(IPT_MESH_UP) - Input::GetStatus(IPT_MESH_DOWN)));
m_mesh_screen_move_damp = vec2(damp(m_mesh_screen_move_damp.x, new_move.x, (new_move.x == .0f)?(.15f):(0.5f), seconds),
damp(m_mesh_screen_move_damp.y, new_move.y, (new_move.y == .0f)?(.15f):(0.5f), seconds));
new_move = vec2((float)(Input::GetStatus(IPT_MESH_OFFSET_UP) - Input::GetStatus(IPT_MESH_OFFSET_DOWN)),
(float)(Input::GetStatus(IPT_MESH_SCALE_UP) - Input::GetStatus(IPT_MESH_SCALE_DOWN)));
m_mesh_move_damp = vec2(damp(m_mesh_move_damp.x, new_move.x, (new_move.x == .0f)?(.15f):(0.5f), seconds),
damp(m_mesh_move_damp.y, new_move.y, (new_move.y == .0f)?(.15f):(0.5f), seconds));
new_move = vec2((float)(Input::GetStatus(IPT_MESH_ROT_UP) - Input::GetStatus(IPT_MESH_ROT_DOWN)),
(float)(Input::GetStatus(IPT_MESH_ROT_RIGHT) - Input::GetStatus(IPT_MESH_ROT_LEFT)));
m_mesh_rotate_damp = vec2(damp(m_mesh_rotate_damp.x, new_move.x, (new_move.x == .0f)?(.15f):(0.5f), seconds),
damp(m_mesh_rotate_damp.y, new_move.y, (new_move.y == .0f)?(.15f):(0.5f), seconds));
vec2 mesh_screen_move = seconds * 0.6f * m_mesh_screen_move_damp;
vec2 mesh_offset_move = seconds * vec2(.6f, .2f) * m_mesh_move_damp;
vec2 mesh_rotate = seconds * vec2(40.0f, 60.0f) * m_mesh_rotate_damp;
//Add movement
m_mesh_screen_offset += mesh_screen_move;
m_mesh_offset += mesh_offset_move;
m_mesh_rotation += mesh_rotate;
//Compute damp
m_mesh_rotation_damp = damp(m_mesh_rotation_damp, m_mesh_rotation, .2f, seconds);
m_mesh_screen_offset_damp = damp(m_mesh_screen_offset_damp, m_mesh_screen_offset, .2f, seconds);
m_mesh_offset_damp = damp(m_mesh_offset_damp, m_mesh_offset, .2f, seconds);
//Clamp necessary
m_mesh_rotation.x = clamp(m_mesh_rotation.x, -90.0f, 90.0f);
m_mesh_offset.y = max(.0f, m_mesh_offset.y);
//m_angle += seconds * 70.0f;
m_mat = mat4::rotate(m_mesh_rotation.x, vec3(1, 0, 0)) *
mat4::rotate(m_angle, vec3(0, 1, 0)) *
mat4::rotate(m_mesh_rotation.y, vec3(0, 1, 0));
//--
//File management
//--
if (Input::WasReleased(IPT_MESH_UPDATE))
m_stream_update_time = m_stream_update_timer + 1.0f;
m_stream_update_time += seconds;
if (m_stream_update_time > m_stream_update_timer)
{
m_stream_update_time = 0.f;
File f;
f.Open(m_file_name.C(), FileAccess::Read);
String cmd = f.ReadString();
f.Close();
for (int i = 0; i < cmd.Count() - 1; i++)
{
if (cmd[i] == '/' && cmd[i + 1] == '/')
{
int j = i;
for (; j < cmd.Count(); j++)
{
if (cmd[j] == '\r' || cmd[j] == '\n')
break;
}
String new_cmd = cmd.Sub(0, i);
if (j < cmd.Count())
new_cmd += cmd.Sub(j, cmd.Count() - j);
cmd = new_cmd;
i--;
}
}
if (cmd.Count()
&& (!m_cmdlist.Count() || cmd != m_cmdlist.Last()))
{
m_cmdlist << cmd;
//Create a new mesh
m_meshes.Push(EasyMesh(), false, .0f, vec3(.0f));
if (!m_meshes.Last().m1.Compile(cmd.C()))
m_meshes.Pop();
//else
// m_meshes.Last().m1.ComputeTexCoord(0.2f, 2);
}
}
}
virtual void TickDraw(float seconds)
{
WorldEntity::TickDraw(seconds);
//TODO : This should probably be "standard LoL behaviour"
{
if (Input::WasReleased(Key::F1))
Video::SetDebugRenderMode(DebugRenderMode::Default);
if (Input::WasReleased(Key::F2))
Video::SetDebugRenderMode(DebugRenderMode::Wireframe);
if (Input::WasReleased(Key::F3))
Video::SetDebugRenderMode(DebugRenderMode::Lighting);
if (Input::WasReleased(Key::F4))
Video::SetDebugRenderMode(DebugRenderMode::Normal);
if (Input::WasReleased(Key::F5))
Video::SetDebugRenderMode(DebugRenderMode::UV);
}
if (!m_default_texture)
{
m_texture_shader = Shader::Create(LOLFX_RESOURCE_NAME(shinymvtexture));
m_texture_uni = m_texture_shader->GetUniformLocation("u_Texture");
//m_image = new Image("data/test-texture.png");
m_default_texture = Tiler::Register("data/test-texture.png", ivec2(0), ivec2(0,1));
//ivec2 size = m_image->GetSize();
//// m_image->GetFormat()
//m_texture = new Texture(m_image->GetSize(), PixelFormat::ABGR_8);
//m_texture->SetData(m_image->GetData());
// PixelFormat::ABGR_8
}
else if (m_texture && m_default_texture)
m_texture_shader->SetUniform(m_texture_uni, m_default_texture->GetTexture(), 0);
for (int i = 0; i < m_meshes.Count(); i++)
{
if (!m_meshes[i].m2)
{
//Fur support
#if WITH_FUR
m_meshes[i].m1.MeshConvert(Shader::Create(LOLFX_RESOURCE_NAME(shinyfur)));
#elif WITH_TEXTURE
//m_meshes[i].m1.MeshConvert(m_texture_shader);
//m_meshes[i].m1.MeshConvert();
m_meshes[i].m1.MeshConvert(new DefaultShaderData(((1 << VertexUsage::Position) | (1 << VertexUsage::Normal) |
(1 << VertexUsage::Color) | (1 << VertexUsage::TexCoord)),
m_texture_shader, true));
#else
m_meshes[i].m1.MeshConvert();
#endif
m_meshes[i].m2 = true;
}
}
g_renderer->SetClearColor(vec4(0.0f, 0.0f, 0.0f, 1.0f));
mat4 default_proj = g_scene->GetCamera()->GetProjection();
int max_drawn = m_meshes.Count() - m_mesh_shown;
for (int i = max_drawn; i < m_meshes.Count(); i++)
m_meshes[i].m4 = vec3(.0f);
for (int i = 0; i < max_drawn; i++)
{
float new_scale = max(.0f, 1.0f - (m_mesh_offset_damp.y * (float)(max_drawn - (i + 1))));
m_meshes[i].m3 = damp(m_meshes[i].m3, new_scale, .35f, seconds);
if (m_meshes[i].m3 > .0f)
{
vec3 new_mesh_offset = vec3(.0f);
//damping calculations
for (int j = max_drawn - 1; j > i; j--)
{
float ofs_scale = max(.0f, 1.0f - (m_mesh_offset_damp.y * (float)(max_drawn - (j + 0))));
new_mesh_offset = new_mesh_offset + vec3(m_meshes[j].m3 * ofs_scale * ofs_scale * m_mesh_offset_damp.x, .0f, .0f);
}
m_meshes[i].m4 = damp(m_meshes[i].m4, new_mesh_offset, .35f, seconds);
g_scene->GetCamera()->SetProjection(
mat4::translate(m_meshes[i].m4) *
mat4::translate(vec3(m_mesh_screen_offset_damp, .0f)) *
mat4::scale(vec3(vec2(m_meshes[i].m3), 1.0f)) *
default_proj);
#if WITH_FUR
for (int j=0; j < 40; j++)
m_meshes[i].m1.Render(m_mat, 0.1 * j);
#else
m_meshes[i].m1.Render(m_mat);
#endif
g_renderer->Clear(ClearMask::Depth);
}
}
g_scene->GetCamera()->SetProjection(default_proj);
}
private:
Camera * m_camera;
float m_angle;
mat4 m_mat;
//Mesh infos
//Move damping
vec2 m_mesh_rotate_damp;
vec2 m_mesh_screen_move_damp;
vec2 m_mesh_move_damp;
//Move transform damping
vec2 m_mesh_rotation_damp;
vec2 m_mesh_screen_offset_damp;
vec2 m_mesh_offset_damp;
vec2 m_mesh_rotation; //Meshes rotation
vec2 m_mesh_screen_offset;//Meshes screen offset
vec2 m_mesh_offset; //Mesh Offset after first mesh (x: offset, y: scale)
int m_mesh_shown;
//File data
String m_file_name;
Array<String> m_cmdlist;
float m_stream_update_time;
float m_stream_update_timer;
//misc datas
Array<EasyMesh, bool, float, vec3> m_meshes;
Array<Light *> m_lights;
Shader * m_texture_shader;
TileSet * m_default_texture;
Texture * m_texture;
ShaderUniform m_texture_uni;
Image * m_image;
float m_fov;
float m_fov_damp;
float m_fov_zoom_damp;
mat4 m_fov_compensation;
};
//The basic main :
int main(int argc, char **argv)
{
System::Init(argc, argv);
Application app("MeshViewer", ivec2(1600, 600), 60.0f);
if (argc > 1)
new MeshViewer(argv[1]);
else
new MeshViewer();
app.Run();
return EXIT_SUCCESS;
}