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https://github.com/knightfox75/nds_nflib.git
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151db13cc0
- Creative Commons (except for CC0) shouldn't be used for code: https://creativecommons.org/faq/#can-i-apply-a-creative-commons-license-to-software MIT has the same spirit as the CC-BY license. - CC-BY has been retained for the assets included in the repository. - Also, the years were wrong, this library was started in 2009. - Make all examples use the CC0 license.
143 lines
3.2 KiB
C
143 lines
3.2 KiB
C
// SPDX-License-Identifier: CC0-1.0
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//
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// SPDX-FileContributor: NightFox & Co., 2009-2011
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/*
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-------------------------------------------------
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NightFox's Lib Template
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Ejemplo de carga de fondos
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Requiere DevkitARM
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Requiere NightFox's Lib
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Codigo por NightFox
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http://www.nightfoxandco.com
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Inicio 10 de Octubre del 2009
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-------------------------------------------------
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*/
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/*
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-------------------------------------------------
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Includes
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-------------------------------------------------
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*/
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// Includes C
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#include <stdio.h>
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// Includes propietarios NDS
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#include <nds.h>
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// Includes librerias propias
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#include <nf_lib.h>
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// Algunos defines interesantes
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#define SPEED 2 // Velocidad del scroll
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/*
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-------------------------------------------------
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Main() - Bloque general del programa
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-------------------------------------------------
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*/
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int main(int argc, char **argv) {
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// Pantalla de espera inicializando NitroFS
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NF_Set2D(0, 0);
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NF_Set2D(1, 0);
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consoleDemoInit();
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printf("\n NitroFS init. Please wait.\n\n");
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printf(" Iniciando NitroFS,\n por favor, espere.\n\n");
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swiWaitForVBlank();
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// Define el ROOT e inicializa el sistema de archivos
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NF_SetRootFolder("NITROFS"); // Define la carpeta ROOT para usar NITROFS
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// Inicializa el motor 2D
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NF_Set2D(0, 0); // Modo 2D_0 en ambas pantallas
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NF_Set2D(1, 0);
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// Inicializa los fondos tileados
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NF_InitTiledBgBuffers(); // Inicializa los buffers para almacenar fondos
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NF_InitTiledBgSys(0); // Inicializa los fondos Tileados para la pantalla superior
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NF_InitTiledBgSys(1); // Iniciliaza los fondos Tileados para la pantalla inferior
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// Carga los archivos de fondo desde la FAT/NitroFS
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NF_LoadTiledBg("bg/nfl", "nfl", 256, 256); // Carga el fondo para la pantalla superior
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NF_LoadTiledBg("bg/bg3", "capa_3", 256, 256); // Carga el fondo para la capa 3, pantalla inferior
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NF_LoadTiledBg("bg/bg2", "capa_2", 1024, 256); // Carga el fondo para la capa 2, pantalla inferior
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NF_LoadTiledBg("bg/bg1", "capa_1", 1536, 256); // Carga el fondo para la capa 1, pantalla inferior
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NF_LoadTiledBg("bg/bg0", "capa_0", 2048, 256); // Carga el fondo para la capa 0, pantalla inferior
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// Crea los fondos de la pantalla superior
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NF_CreateTiledBg(0, 3, "nfl");
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// Crea los fondos de la pantalla inferior
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NF_CreateTiledBg(1, 3, "capa_3");
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NF_CreateTiledBg(1, 2, "capa_2");
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NF_CreateTiledBg(1, 1, "capa_1");
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NF_CreateTiledBg(1, 0, "capa_0");
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// Variables
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s16 bg_x[4];
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s16 bg_y[4];
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u16 keys = 0;
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u8 n = 0;
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// Inicializa las variables
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for (n = 0; n < 4; n ++) {
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bg_x[n] = 0;
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bg_y[n] = 0;
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}
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// Bucle (repite para siempre)
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while(1) {
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// Lee el keypad
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scanKeys();
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keys = keysHeld(); // Teclas presionadas
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// Si pulsas izquierda
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if (keys & KEY_LEFT) {
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bg_x[0] -= SPEED;
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if (bg_x[0] < 0) bg_x[0] = 0;
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}
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// Si pulsas derecha
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if (keys & KEY_RIGHT) {
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bg_x[0] += SPEED;
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if (bg_x[0] > 1663) bg_x[0] = 1663; // Limite fisico de la capa 0
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}
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// Calcula el efecto scroll parallax
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bg_x[1] = (int)(bg_x[0] / 1.5);
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bg_x[2] = (int)(bg_x[1] / 1.5);
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swiWaitForVBlank(); // Espera al sincronismo vertical
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// Actualiza la posicion de los fondos
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for (n = 0; n < 4; n ++) {
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NF_ScrollBg(1, n, bg_x[n], bg_y[n]);
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}
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}
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return 0;
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}
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