void GraphLayoutParser::ParseGraphLayout( const char* layoutBuffer, int size, MaterialGraphWidget* graph )
{
char* currPos = const_cast<char*>( layoutBuffer );
if( size > 0 )
{
char* bufferEnd = currPos + size;
int versionNumber = *reinterpret_cast< int* >( currPos );
currPos += sizeof( int );
if( versionNumber == MATERIAL_VERSION_NUMBER )
{
int numNodes = *reinterpret_cast< int* >( currPos );
currPos += sizeof( int );
std::map< int, NodeData* > nodeMap;
for( int i = 0; i < numNodes && currPos < bufferEnd; ++i )
{
Node* node = ConstructNode( currPos, graph );
if( node != nullptr )
{
graph->scene()->addItem( node );
NodeData* nodeData = new NodeData( node );
nodeMap[ node->GetNodeID() ] = nodeData;
unsigned int numConnectors = node->InputConnectors().size();
for( unsigned int c = 0; c < numConnectors; ++c )
{
nodeData->inputConnectorIDs.push_back( *reinterpret_cast< const int* >( currPos ) );
currPos += sizeof( int );
nodeData->outputConnectorIDs.push_back( *reinterpret_cast< const int* >( currPos ) );
currPos += sizeof( int );
}
}
}
for( auto iter = nodeMap.begin(); iter != nodeMap.end(); ++iter )
{
ReconnectNode( iter->second, nodeMap, graph );
}
graph->scene()->update();
}
}
}
int main(int argc, char** argv)
{
Settings settings;
ConstructSettings(&settings);
LoadSettingsFile(&settings, "settings.ini");
if(Init(&settings) < 0) return -1;
GLuint program;
if(SetupProgram(&program) < 0) return -2;
GLuint grid_vbuf = CreateGridVertexBuffer(settings.graphics.viewdistance);
int grid_icount;
GLuint grid_ibuf = CreateGridIndexBuffer(&grid_icount,
settings.graphics.viewdistance);
glUseProgram(program);
GLint grid_pos_loc = glGetAttribLocation(program, "grid_pos");
GLint grid_world_mat_loc = glGetUniformLocation(program, "world_mat");
GLint grid_view_mat_loc = glGetUniformLocation(program, "view_mat");
GLint grid_proj_mat_loc = glGetUniformLocation(program, "proj_mat");
GLint grid_color_loc = glGetUniformLocation(program, "color");
GLint grid_viewdistance_loc = glGetUniformLocation(program, "viewdistance");
glUniform3f(grid_color_loc, 0.f, 0.6f, 0.f);
glUniform1f(grid_viewdistance_loc, settings.graphics.viewdistance);
GLuint grid_vao;
glGenVertexArrays(1, &grid_vao);
glBindVertexArray(grid_vao);
glBindBuffer(GL_ARRAY_BUFFER, grid_vbuf);
glEnableVertexAttribArray(grid_pos_loc);
glVertexAttribPointer(grid_pos_loc, 2, GL_FLOAT, GL_FALSE, 0, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, grid_ibuf);
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
glClearColor(0.5f, 0.5f, 0.5f, 1.f);
glViewport(0, 0, settings.video.width, settings.video.height);
Node grid_node;
ConstructNode(&grid_node);
Camera camera;
ConstructCamera(&camera);
mat4x4 projection_matrix;
mat4x4_perspective(projection_matrix,
settings.video.pfov,
settings.video.width/(float)settings.video.height,
settings.video.pnear,
settings.video.pfar);
glUniformMatrix4fv(grid_proj_mat_loc, 1, GL_FALSE,
(const float*)projection_matrix);
float speed = 10.f;
Uint32 ticks = SDL_GetTicks();
State state = STATE_RUNNING | (settings.video.fullscreen ? STATE_FULLSCREEN : 0);
while(state & STATE_RUNNING)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glUseProgram(program);
glUniformMatrix4fv(grid_world_mat_loc, 1, GL_FALSE,
(const float*)grid_node.world_matrix);
glUniformMatrix4fv(grid_view_mat_loc, 1, GL_FALSE,
(const float*)camera.view_matrix);
glBindVertexArray(grid_vao);
glDrawElements(GL_TRIANGLE_STRIP, grid_icount, GL_UNSIGNED_INT, NULL);
SDL_GL_SwapWindow(window);
SDL_Event event;
while(SDL_PollEvent(&event))
{
switch(event.type)
{
case SDL_QUIT:
state &= ~STATE_RUNNING;
break;
case SDL_KEYUP:
switch(event.key.keysym.scancode)
{
case SDL_SCANCODE_F11:
state ^= STATE_FULLSCREEN;
SDL_SetWindowFullscreen
(
window,
state & STATE_FULLSCREEN ?
SDL_WINDOW_FULLSCREEN_DESKTOP : 0
);
break;
case SDL_SCANCODE_ESCAPE:
state ^= STATE_MOUSE_GRABBED;
SDL_SetRelativeMouseMode(state & STATE_MOUSE_GRABBED);
break;
case SDL_SCANCODE_LSHIFT:
speed = settings.controls.speed1;
break;
default:
break;
}
break;
case SDL_KEYDOWN:
switch(event.key.keysym.scancode)
{
case SDL_SCANCODE_LSHIFT:
speed = settings.controls.speed2;
break;
default:
break;
}
break;
case SDL_WINDOWEVENT:
if(event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED)
{
int w = event.window.data1;
int h = event.window.data2;
glViewport(0, 0, w, h);
mat4x4_perspective(projection_matrix,
settings.video.pfov,
w/(float)h,
settings.video.pnear,
settings.video.pfar);
glUniformMatrix4fv(grid_proj_mat_loc, 1, GL_FALSE,
(const float*)projection_matrix);
}
break;
case SDL_MOUSEMOTION:
if(state & STATE_MOUSE_GRABBED)
{
camera.yaw -= settings.controls.xsensitivity *
event.motion.xrel;
camera.pitch -= settings.controls.xsensitivity *
event.motion.yrel;
}
break;
default:
break;
}
}
Uint32 nticks = SDL_GetTicks();
float delta = (nticks - ticks)/1000.f;
ticks = nticks;
const Uint8* keys = SDL_GetKeyboardState(NULL);
vec3 movement;
int i;
for(i = 0; i < 3; i++) movement[i] = 0.f;
SDL_bool moved = SDL_FALSE;
if(keys[SDL_SCANCODE_W] && !keys[SDL_SCANCODE_S])
{
vec3_add(movement, movement, camera.direction);
moved = SDL_TRUE;
}
else if(keys[SDL_SCANCODE_S] && !keys[SDL_SCANCODE_W])
{
vec3_sub(movement, movement, camera.direction);
moved = SDL_TRUE;
}
if(keys[SDL_SCANCODE_A] && !keys[SDL_SCANCODE_D])
{
vec3_sub(movement, movement, camera.right);
moved = SDL_TRUE;
}
else if(keys[SDL_SCANCODE_D] && !keys[SDL_SCANCODE_A])
{
vec3_add(movement, movement, camera.right);
moved = SDL_TRUE;
}
if(keys[SDL_SCANCODE_Q] && !keys[SDL_SCANCODE_E])
{
vec3_sub(movement, movement, camera.up);
moved = SDL_TRUE;
}
else if(keys[SDL_SCANCODE_E] && !keys[SDL_SCANCODE_Q])
{
vec3_add(movement, movement, camera.up);
moved = SDL_TRUE;
}
if(moved)
{
vec3_norm(movement, movement);
vec3_scale(movement, movement, delta * speed);
vec3_add(camera.node.translation, camera.node.translation,
movement);
}
UpdateCamera(&camera);
if(moved)
{
vec2 tmp1;
tmp1[0] = camera.node.position[0];
tmp1[1] = camera.node.position[2];
vec2 tmp2;
tmp2[0] = grid_node.position[0];
tmp2[1] = grid_node.position[2];
vec2_sub(tmp1, tmp1, tmp2);
tmp1[0] = floor(tmp1[0]);
tmp1[1] = floor(tmp1[1]);
grid_node.translation[0] += tmp1[0];
grid_node.translation[2] += tmp1[1];
UpdateNode(&grid_node);
}
}
glDeleteVertexArrays(1, &grid_vao);
glDeleteBuffers(1, &grid_vbuf);
glDeleteBuffers(1, &grid_ibuf);
glDeleteProgram(program);
return 0;
}
