fontblowup.cpp

这是一款2d游戏引擎

/*
	$Id: fontblowup.cpp,v 1.1 2003/01/26 21:05:13 sphair Exp $

	------------------------------------------------------------------------
	ClanLib, the platform independent game SDK.

	This library is distributed under the GNU LIBRARY GENERAL PUBLIC LICENSE
	version 2. See COPYING for details.

	For a total list of contributers see CREDITS.

	------------------------------------------------------------------------

	File purpose:
		Small Pacman game. Class that blows up the font!
*/
/*
#include "precomp.h"
#include "fontblowup.h"

FontBlowUp::FontBlowUp(const char *_text, int x, int y, CL_Font *_font)
{
	text = _text;
	initial_x = x;
	initial_y = y;

	font = _font;

	create_letters();
}

FontBlowUp::~FontBlowUp()
{
	delete[] letters_x;
	delete[] letters_y;
	delete[] letters_z;
	delete[] letters_delta_x;
	delete[] letters_delta_y;
	delete[] letters_delta_z;
}

void FontBlowUp::create_letters()
{
	const char *letters = text;
	int num = text.get_length();

	int total_length = font->get_text_width(text.get_string());
	int x = initial_x - total_length/2;

	letters_x = new float[num];
	letters_y = new float[num];
	letters_z = new float[num];
	letters_delta_x = new float[num];
	letters_delta_y = new float[num];
	letters_delta_z = new float[num];

	char output[2];
	output[1] = 0;

	for (int i=0; i<num; i++)
	{
		letters_x[i] = x;
		letters_y[i] = initial_y;
		letters_z[i] = 1.0f;
		letters_delta_x[i] = (rand()%2000-1000)/(float) 20;
		letters_delta_y[i] = -(rand()%2000)/(float) 20;
		letters_delta_z[i] = (rand()%2000-1000)/(float) 2000;

		output[0] = letters[i];

		x += font->get_text_width(output);
	}
}

bool FontBlowUp::show(float time_elapsed)
{
	bool still_visible = false;

	time_elapsed *= 5; // scott, more power on the warp engines...

	const char *letters = text;
	int num = text.get_length();

	char output[2];
	output[1] = 0;

	for (int i=0; i<num; i++)
	{
		output[0] = letters[i];
		font->print_left(
			(int) letters_x[i],
			(int) letters_y[i],
			letters_z[i],
			letters_z[i],
			output);

		letters_x[i] += letters_delta_x[i]*time_elapsed;
		letters_y[i] += letters_delta_y[i]*time_elapsed;
		letters_z[i] += letters_delta_z[i]*time_elapsed;

		letters_delta_y[i] += time_elapsed*20;

		if (letters_y[i] < CL_Display::get_height()) still_visible = true;
	}

	return still_visible;
}
*/