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#include <ClanLib/core.h>
#include <ClanLib/display.h>
#include <ClanLib/sound.h>
#include "intro.h"
#include "texture.h"
/////////////////////////////////////////////////////////////////////////////
// Construction:
Intro::Intro(CL_ResourceManager *resources)
{
font = new CL_Font("Intro/font", resources);
background = Texture::load("Intro/background", resources);
sample_write = new CL_SoundBuffer("Intro/Sounds/write", resources);
sample_background = new CL_SoundBuffer("Intro/Sounds/background", resources);
session_write = sample_write->prepare();
session_background = sample_background->prepare(true);
line[0] = "In the year 2045...";
line[1] = "Technology has reached";
line[2] = "a point where we fight wars";
line[3] = "deep in space.";
line[4] = "They call the fight...ehrm...";
line[5] = "NetObjects Example.";
current_time = 0;
current_line = 0;
current_pos = 0;
state = 0;
back_x = -512.0f;
back_y = -384.0f;
alpha = -0.2f;
}
Intro::~Intro()
{
}
/////////////////////////////////////////////////////////////////////////////
// Operations:
void Intro::run()
{
bool quit = false;
float last_time = CL_System::get_time();
do
{
if(CL_Keyboard::get_keycode(CL_KEY_ESCAPE))
quit = true;
float delta_time = (CL_System::get_time() - last_time) / 1000.0f;
last_time = CL_System::get_time();
if(update(delta_time) == false)
quit = true;
else
draw();
CL_Display::flip_display();
CL_System::keep_alive();
CL_System::sleep(10);
} while (quit == false);
}
/////////////////////////////////////////////////////////////////////////////
// Implementation:
bool Intro::update(float time_elapsed)
{
current_time += time_elapsed;
back_x += time_elapsed * 9;
back_y += time_elapsed * 8;
alpha += 0.05f * time_elapsed;
switch(state)
{
case 0: // Waiting for a new line to start
if(current_time > 1.0f)
{
current_time = 0.0f;
state++;
}
break;
case 1: // Writing text
while(current_time > 0.05f)
{
current_time -= 0.05f;
current_pos++;
if(session_write.is_playing() == false)
if(current_pos < line[current_line].size() - 3)
session_write.play();
if(current_pos > line[current_line].size())
{
current_time = 0.0f;
state++;
break;
}
}
break;
case 2: // Waiting for last line to show a while
if(current_time > 3.0f)
{
current_time = 0.0f;
current_pos = 0;
current_line++;
state = 0;
if(current_line == 6)
return false;
}
break;
}
return true;
}
void Intro::draw()
{
session_background.play();
RGBA col[4];
for(int j=0; j<4; j++)
{
col[j].rgba[0] = 1.0f;
col[j].rgba[1] = 1.0f;
col[j].rgba[2] = 1.0f;
col[j].rgba[3] = alpha;
}
CL_Display::clear_display(0.0f, 0.0f, 0.0f);
background->put_screen(-back_x, -back_y, 0.0f, 1.0f, col);
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
char cur[2] = {0};
int x = 0;
for(int i=0; i < current_pos; i++)
{
cur[0] = line[current_line][i];
font->print_left(10 + x, 440, cur);
x += font->get_char_width(cur[0]);
}
}
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