diff options
| -rw-r--r-- | LICENSE-AGPLv3 | 661 | ||||
| -rw-r--r-- | LICENSE-GPLv3 | 674 | ||||
| -rw-r--r-- | Makefile | 4 | ||||
| -rw-r--r-- | README | 11 | ||||
| -rw-r--r-- | draw.h | 158 | ||||
| -rw-r--r-- | globals.c | 38 | ||||
| -rw-r--r-- | globals.h | 162 | ||||
| -rw-r--r-- | main.c | 485 | ||||
| -rw-r--r-- | main.h | 29 | ||||
| -rw-r--r-- | nyan.c | 673 | ||||
| -rw-r--r-- | nyan.h | 33 |
11 files changed, 2218 insertions, 710 deletions
diff --git a/LICENSE-AGPLv3 b/LICENSE-AGPLv3 new file mode 100644 index 0000000..be3f7b2 --- /dev/null +++ b/LICENSE-AGPLv3 @@ -0,0 +1,661 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/> + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for +software and other kinds of works, specifically designed to ensure +cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. + + If the disclaimer of warranty and limitation of liability provided +above cannot be given local legal effect according to their terms, +reviewing courts shall apply local law that most closely approximates +an absolute waiver of all civil liability in connection with the +Program, unless a warranty or assumption of liability accompanies a +copy of the Program in return for a fee. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these terms. + + To do so, attach the following notices to the program. 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If not, see <https://www.gnu.org/licenses/>. + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + <program> Copyright (C) <year> <name of author> + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +<https://www.gnu.org/licenses/>. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +<https://www.gnu.org/licenses/why-not-lgpl.html>. @@ -3,8 +3,8 @@ RES = /usr/share/nyancat BIN = /usr/bin/nyancat LIBS = -lSDL2 -lSDL2_image -lSDL2_mixer -lm -lX11 -lXrandr CFLAGS = -O3 -march=native -flto -Wall #-g -fsanitize=address -OBJ = nyan.o -HEADERS = list.h draw.h globals.h +OBJ = main.o nyan.o globals.o +HEADERS = main.h nyan.h globals.h %.o: %.c $(HEADERS) $(CC) -c -o $@ $< $(CFLAGS) $(LIBS) @@ -1,3 +1,9 @@ +This software was originally written by John Anthony, who noted that those who like this software and would like to +contribute to its continued improvement are free to submit bug reports here: https://github.com/JohnAnthony/Nyancat + +This software was forked by DiffieHellman due to not wanting to run proprietary github JavaScript who ported it to +SDL2, fixed some bugs and made other improvements. + Now with full MooGNU support! Usage: ./nyancat [OPTIONS] @@ -6,13 +12,14 @@ Usage: ./nyancat [OPTIONS] -w, --windowed Disable fullscreen. -c, --catsize Choose size to scale cat to (between 0.1 to 10.0) -a, --nocursor Don't show the cursor (default). - -b, --cursor Show the cursor. + -u, --cursor Show the cursor. -e, --nosound Don't play sound. -v, --volume Set Volume, if enabled, from 0 - 128. -r, --resolution Argument format: <width>x<height> (1200x800 default). -d, --data-set Use an alternate data set. Packaged with this program by default are "default" and "freedom" sets. + -b, --bounce Bounce cat around. -s, --sine Make cat move in a sine wave. -n, --count Number of cats to spawn. - + -V, --version Print version and copyright information. @@ -1,158 +0,0 @@ -#ifndef DRAW_H
-#define DRAW_H
-
-void add_sparkle(void)
- {
- sparkle_instance *new = ec_malloc(sizeof(sparkle_instance));
-
- new->loc.x = SCREEN_WIDTH + 80;
- new->loc.y = (rand() % (SCREEN_HEIGHT + sparkle_height)) - sparkle_height;
- new->frame = 0;
- new->frame_mov = 1;
- new->speed = 10 + (rand() % 30);
- new->layer = rand() % 2;
-
- LIST_INSERT_HEAD(&sparkle_list, new, entries);
- }
-
-void add_cat(unsigned int x, unsigned int y)
- {
- cat_instance *new = ec_malloc(sizeof(cat_instance));
-
- new->loc.x = x;
- new->loc.y = y;
-
- LIST_INSERT_HEAD(&cat_list, new, entries);
- }
-
-void add_rainbow(unsigned int x, unsigned int y)
- {
- rainbow_instance *new = ec_malloc(sizeof(rainbow_instance));
-
- new->loc.x = x;
- new->loc.y = y;
- new->sprite = rainbow_sprite;
-
- LIST_INSERT_HEAD(&rainbow_list, new, entries);
- }
-
-void update_rainbows()
- {
- cat_instance *c;
-
- /* rainbows need to be placed according to the cat position (which changes constantly) */
- LIST_FOREACH(c, &cat_list, entries)
- {
- add_rainbow((SCREEN_WIDTH - rainbow_width) / 2 - OFFSET /* Default position in the center */
- - ((SCREEN_WIDTH - cat_width) / 2 - c->loc.x), /* Plus the amount the cat is off the center */
- (SCREEN_HEIGHT - rainbow_height) / 2 /* Default position in the center */
- - ((SCREEN_HEIGHT - cat_height) / 2 - c->loc.y));/* Plus the amount the cat is off the center */
- }
-
-
- rainbow_instance *r, *rtmp;
-
- /* update the position of each rainbow left */
- LIST_FOREACH_SAFE(r, &rainbow_list, entries, rtmp)
- {
- r->loc.x -= rainbow_width;
-
- /* if rainbow is off screen, delete and free() it */
- if ((r->loc.x + rainbow_width) < 0)
- {
- LIST_REMOVE(r, entries);
- free(r);
- }
- }
- }
-
-void update_sparkles()
- {
-
- /* ensure screen has enough sparkles at all times */
- sparkle_spawn_counter += rand() % SCREEN_HEIGHT;
- while (sparkle_spawn_counter >= 1000)
- {
- add_sparkle();
- sparkle_spawn_counter -= 1000;
- }
-
- sparkle_instance *s, *stmp;
- LIST_FOREACH_SAFE(s, &sparkle_list, entries, stmp)
- {
- /* move sparkle left */
- s->loc.x -= s->speed;
- s->frame += s->frame_mov;
-
- /* reset sparkle frame */
- if (s->frame + 1 >= sparkle_count || s->frame < 1){s->frame_mov = 0 - s->frame_mov;}
-
- /* if sparkle offscreen, delete it */
- if ((s->loc.x + sparkle_width) < 0)
- {
- LIST_REMOVE(s, entries);
- free(s);
- }
- }
- }
-
-void handle_sine()
- {
- cat_instance *c;
-
- LIST_FOREACH(c, &cat_list, entries)
- {
- /* sine magic */
- double pos = (SCREEN_HEIGHT - cat_height)/2 * sin((2*PI*444444)*t);
- c->loc.y = ((SCREEN_HEIGHT - cat_height)/2 - pos);
- }
-
- t += 20;
- }
-
-void draw_cats()
- {
- cat_instance* c;
-
- LIST_FOREACH(c, &cat_list, entries)
- {
- /* source sprite dimensions */
- SDL_Rect srcrect = {cat_sprite * cat_width, 0, cat_width, cat_height};
- /* dimensions of destination rectangle */
- SDL_Rect dstrect = {c->loc.x, c->loc.y, cat_width*cat_size, cat_height*cat_size};
-
- SDL_RenderCopy(renderer, cat_texture, &srcrect, &dstrect);
- }
- }
-
-void draw_rainbows()
- {
- rainbow_instance* r;
-
- LIST_FOREACH(r, &rainbow_list, entries)
- {
- /* source sprite dimensions */
- SDL_Rect srcrect = {r->sprite * rainbow_width, 0, rainbow_width, rainbow_height};
- /* dimensions of destination rectangle */
- SDL_Rect dstrect = {r->loc.x, r->loc.y, rainbow_width*cat_size, rainbow_height*cat_size};
-
- SDL_RenderCopy(renderer, rainbow_texture, &srcrect, &dstrect);
- }
- }
-
-void draw_sparkles()
- {
- sparkle_instance* s;
-
- LIST_FOREACH(s, &sparkle_list, entries)
- {
- /* source sprite dimensions */
- SDL_Rect srcrect = {sparkle_sprite * sparkle_width, 0, sparkle_width, sparkle_height};
- /* dimensions of destination rectangle */
- SDL_Rect dstrect = {s->loc.x, s->loc.y, sparkle_width*cat_size, sparkle_height*cat_size};
-
- SDL_RenderCopy(renderer, sparkle_texture, &srcrect, &dstrect);
- }
- }
-
-#endif
diff --git a/globals.c b/globals.c new file mode 100644 index 0000000..e6cb89b --- /dev/null +++ b/globals.c @@ -0,0 +1,38 @@ + /* nyancat in GNU C + Copyright © 2024 DiffieHellman + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero General Public License as + published by the Free Software Foundation, either version 3 of the + License, or (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#include "globals.h" + +SDL_Event event; +bool running = true, sound = true, fullscreen = true, cursor = false, sine = false, bounce = false; + +int sound_volume = 128, sparkle_spawn_counter = 0, cat_width, cat_height, rainbow_width, rainbow_height, sparkle_width, sparkle_height, cat_count, sparkle_count, rainbow_count, sparkle_pos; +Mix_Music *music; + +char *cat_dir; + +SDL_Renderer *renderer; +SDL_Texture *cat_texture, *rainbow_texture, *sparkle_texture; +uint32_t cat_sprite, rainbow_sprite, sparkle_sprite; + +/* for sine default screen width and height */ +unsigned t, cat_num = 1, screen_width = 1200, screen_height = 800; +double cat_size = 1; + +struct head_cat cat_list; +struct head_rainbow rainbow_list; +struct head_sparkle sparkle_list; @@ -1,74 +1,88 @@ -#ifndef GLOBALS_H
-#define GLOBALS_H
-
-#define FRAMERATE 14
-#define BUF_SZ 1024
-/* the amount to offset the rainbow off the center of the cat */
-#define OFFSET 25
-#define PI 3.14159265
-
-/* type definitions */
-typedef struct {
- int x, y;
-} coords;
-
-typedef struct cat cat_instance;
-struct cat
- {
- coords loc;
- /* magic to handle the linked list */
- LIST_ENTRY(cat) entries;
- };
-struct head_cat cat_list;
-
-typedef struct rainbow rainbow_instance;
-struct rainbow
- {
- coords loc;
- unsigned sprite;
- /* magic to handle the linked list */
- LIST_ENTRY(rainbow) entries;
- };
-struct head_rainbow rainbow_list;
-
-typedef struct sparkle sparkle_instance;
-struct sparkle
- {
- unsigned short frame, speed;
- short frame_mov;
- unsigned short layer;
- coords loc;
- /* magic to handle the linked list */
- LIST_ENTRY(sparkle) entries;
- };
-struct head_sparkle sparkle_list;
-
-SDL_Event event;
-bool running = true, sound = true, fullscreen = true, cursor = false, sine = false;
-int sound_volume = 128, sparkle_spawn_counter = 0;
-Mix_Music *music;
-
-#define BASE_PATH "res"
-char *cat_dir;
-
-LIST_HEAD(head_cat, cat);
-LIST_HEAD(head_rainbow, rainbow);
-LIST_HEAD(head_sparkle, sparkle);
-
-int cat_width, cat_height, rainbow_width, rainbow_height, sparkle_width, sparkle_height;
-SDL_Renderer *renderer;
-SDL_Texture *cat_texture, *rainbow_texture, *sparkle_texture;
-uint32_t cat_sprite, rainbow_sprite, sparkle_sprite;
-int cat_count, sparkle_count, rainbow_count;
-int sparkle_pos;
-/* for sine */
-unsigned t;
-
-unsigned cat_num = 1;
-double cat_size = 1;
-
-/* default screen size for windowed */
-unsigned SCREEN_WIDTH = 1200;
-unsigned SCREEN_HEIGHT = 800;
-
-#endif
+ /* nyancat in GNU C + Copyright © 2023-2024 DiffieHellman + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero General Public License as + published by the Free Software Foundation, either version 3 of the + License, or (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#ifndef GLOBALS_H +#define GLOBALS_H + +#include <stdint.h> +#include <stdbool.h> +#include <SDL2/SDL.h> +#include <SDL2/SDL_mixer.h> +#include <bsd/sys/queue.h> // linked list implementation + +#define FRAMERATE 14 +#define BUF_SZ 1024 +/* the amount to offset the rainbow off the center of the cat */ +#define OFFSET 25 +#define PI 3.14159265 +#define BASE_PATH "res" + +/* type definitions */ +typedef struct { + int x, y; +} coords; + +typedef struct cat cat_instance; +struct cat + { + coords loc; + /* direction cat in bouncing in - only used if bounce is set */ + coords bounce_direction; + /* magic to handle the linked list */ + LIST_ENTRY(cat) entries; + }; +extern struct head_cat cat_list; + +typedef struct rainbow rainbow_instance; +struct rainbow + { + coords loc; + unsigned sprite; + /* magic to handle the linked list */ + LIST_ENTRY(rainbow) entries; + }; +extern struct head_rainbow rainbow_list; + +typedef struct sparkle sparkle_instance; +struct sparkle + { + unsigned short frame, speed; + short frame_mov; + unsigned short layer; + coords loc; + /* magic to handle the linked list */ + LIST_ENTRY(sparkle) entries; + }; +extern struct head_sparkle sparkle_list; + +LIST_HEAD(head_cat, cat); +LIST_HEAD(head_rainbow, rainbow); +LIST_HEAD(head_sparkle, sparkle); + +extern unsigned screen_width, screen_height, t, cat_num; +extern int sound_volume, sparkle_spawn_counter, cat_width, cat_height, rainbow_width, rainbow_height, sparkle_width, sparkle_height, cat_count, sparkle_count, rainbow_count, sparkle_pos; +extern uint32_t cat_sprite, rainbow_sprite, sparkle_sprite; +extern double cat_size; +extern bool running, sound, fullscreen, cursor, sine, bounce; +extern char *cat_dir; + +extern SDL_Event event; +extern Mix_Music *music; +extern SDL_Renderer *renderer; +extern SDL_Texture *cat_texture, *rainbow_texture, *sparkle_texture; + +#endif @@ -0,0 +1,485 @@ + /* nyancat in GNU C + Copyright © 2011-2013, 2017 John Anthony + Copyright © 2021, 2023-2024 DiffieHellman + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. */ + +#include <SDL2/SDL.h> +#include <SDL2/SDL_image.h> +#include <SDL2/SDL_mixer.h> +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> +#include <time.h> +#include <string.h> +#include <getopt.h> +#include <stdint.h> +#include <math.h> +#include <stdio.h> +#include <X11/extensions/Xrandr.h> +#include <regex.h> +#include "main.h" +#include "nyan.h" +#include "globals.h" + +void *ec_malloc(unsigned int size) + { + void *ptr = malloc(size); + if (!ptr){errout("In ec_malloc -- unable to allocate memory.");} + + return ptr; + } + +void errout(char *str) + { + if (str){fprintf(stderr,"%s\n",str);} + exit(1); + } + + +void get_screen_info() +{ +int iscres, icrtc; + +Display *disp = XOpenDisplay(0); +XRRScreenResources *screen = XRRGetScreenResources(disp, DefaultRootWindow(disp)); +for (iscres = screen->noutput; iscres > 0; ) + { + --iscres; + + XRROutputInfo *info = XRRGetOutputInfo (disp, screen, screen->outputs[iscres]); + if (info->connection == RR_Connected) + { + for (icrtc = info->ncrtc; icrtc > 0;) + { + --icrtc; + + XRRCrtcInfo *crtc_info = XRRGetCrtcInfo (disp, screen, screen->crtcs[icrtc]); + fprintf(stderr, "==> %dx%d+%dx%d\n", crtc_info->x, crtc_info->y, crtc_info->width, crtc_info->height); + + XRRFreeCrtcInfo(crtc_info); + } + } + XRRFreeOutputInfo(info); + } + XRRFreeScreenResources(screen); +} + + + + + + +void cleanup(void) + { + Mix_HaltMusic(); + Mix_FreeMusic(music); + Mix_CloseAudio(); + + /* free cats */ + cat_instance *c, *ctmp; + LIST_FOREACH_SAFE(c, &cat_list, entries, ctmp) + { + LIST_REMOVE(c, entries); + free(c); + } + + /* free rainbows */ + rainbow_instance *r, *rtmp; + LIST_FOREACH_SAFE(r, &rainbow_list, entries, rtmp) + { + LIST_REMOVE(r, entries); + free(r); + } + + + /* free sparkles */ + sparkle_instance *s, *stmp; + LIST_FOREACH_SAFE(s, &sparkle_list, entries, stmp) + { + LIST_REMOVE(s, entries); + free(s); + } + + + SDL_DestroyRenderer(renderer); + SDL_Quit(); + } + +void handle_args(int argc, char *argv[]) + { + int c, volume; + char *x; //position of x in resolution (e.g. 800x600) + + while(1) + { + static struct option long_options[] = + { + {"help", no_argument, 0, 'h'}, + {"fullscreen", no_argument, 0, 'f'}, + {"windowed", no_argument, 0, 'w'}, + {"catsize", required_argument, 0, 'c'}, + {"nocursor", no_argument, 0, 'a'}, + {"cursor", no_argument, 0, 'u'}, + {"nosound", no_argument, 0, 'e'}, + {"volume", required_argument, 0, 'v'}, + {"resolution", required_argument, 0, 'r'}, + {"data-set", required_argument, 0, 'd'}, + {"sine", no_argument, 0, 's'}, + {"bounce", no_argument, 0, 'b'}, + {"count", required_argument, 0, 'n'}, + {"version", no_argument, 0, 'V'}, + {0, 0, 0, 0} + }; + + /* getopt_long stores the option index here. */ + int option_index = 0; + c = getopt_long(argc, argv, "hfwc:auev:r:d:sbn:V", long_options, &option_index); + + /* detect the end of the options. */ + if (c == -1){break;} + + switch (c) + { + case 'h': + usage(argv[0]); + break; + case 'f': + fullscreen = true; + break; + case 'w': + fullscreen = false; + break; + case 'c': + cat_size = atof(optarg); + if (cat_size < 0.1 || cat_size > 10) + { + fprintf(stderr,"Size of cat is invalid, set to default.\n"); + cat_size = 1; + } + break; + case 'a': + cursor = false; + break; + case 'u': + cursor = true; + break; + case 'e': + sound = false; + break; + case 'v': + volume = atoi(optarg); + if(volume >= 0 && volume <= 128){sound_volume = volume;} + else + { + fprintf(stderr,"Arguments for Volume are not valid. Disabling sound.\n"); + sound = false; + } + break; + + case 'r': + /* check that the optarg is in the correct <num>x<num> format to guarantee correct parsing */ + regex_t regex; + regcomp(®ex, "[0-9]\\+x[0-9]\\+", 0); + if (regexec(®ex, optarg, 0, NULL, 0) != 0){fprintf(stderr,"Argument for resolution is invalid, resolution set to default.\n"); break;} + + x = strchr(optarg,'x'); + *x = '\0'; + + int dims[2] = {atoi(optarg), atoi(x+1)}; + /* todo: poll the total resolution of all screens with xrandr and don't allow larger to keep window smaller than the display and support screens larger than 32K */ + if (dims[0] >= 200 && dims[0] <= 30720 && dims[1] >= 200 && dims[1] <= 17280) + { + screen_width = dims[0]; + screen_height = dims[1]; + } + else {fprintf(stderr,"Argument for resolution is invalid, resolution set to default.\n");} + break; + + case 'd': + if (cat_dir){free(cat_dir);} + cat_dir = strdup(optarg); + break; + + case 's': + sine = true; + break; + + case 'b': + bounce = true; + break; + + case 'n': + cat_num = atoi(optarg); + if (cat_num <= 0 || cat_num > 10000) + { + fprintf(stderr,"Number of cats are invalid, set to 1.\n"); + cat_num = 1; + } + break; + case 'V': + printf("nyancat (GNU C version)\n" + "Copyright © 2011-2013, 2017 John Anthony\n" + "Copyright © 2021, 2023-2024 DiffieHellman\n" + "License (part) GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl-3.0.html>\n" + "License (part) AGPLv3+: GNU Affero GPL version 3 or later <https://gnu.org/licenses/agpl-3.0.html>\n" + "This is free software; you are free to change and redistribute it.\n" + "There is NO WARRANTY, to the extent permitted by law.\n"); + exit(0); + + case '?': + /* getopt_long already printed an error message. */ + break; + + default: + exit(1); + } + } + if (!cat_dir){cat_dir = "default";} +} + +void handle_input(void) + { + while(SDL_PollEvent(&event)) + { + switch (event.type) + { + case SDL_KEYDOWN: + case SDL_QUIT: + running = false; + break; + } + } + } + +void init(void) + { + srand(time(NULL)); + + SDL_Init(SDL_INIT_VIDEO|SDL_INIT_AUDIO|IMG_INIT_PNG); + + SDL_Window *window; + if (fullscreen) + { + window = SDL_CreateWindow("Nyan cat", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 0, 0, SDL_WINDOW_FULLSCREEN_DESKTOP); + /* Set screen width and height to fullscreen resolution*/ + SDL_DisplayMode current; + if (SDL_GetCurrentDisplayMode(0, ¤t) != 0){errout("SDL could not get display mode for screen");} + screen_width = current.w; + screen_height = current.h; + } + + else {window = SDL_CreateWindow("Nyan cat", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, screen_width, screen_height, SDL_WINDOW_MAXIMIZED);} + if (!cursor){SDL_ShowCursor(0);} + + renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC); + + load_images(); + load_resource_data(); + + /* Divide the *_width by *_count, so we don't need to calculate width/count every time */ + cat_width /= cat_count; + rainbow_width /= rainbow_count; + sparkle_width /= sparkle_count; + + SDL_SetRenderDrawColor(renderer, 0x00, 0x33, 0x66, 255); + SDL_RenderClear(renderer); + + if (sound) + { + Mix_OpenAudio(44100, AUDIO_S16, 2, 256); + load_music(); + Mix_PlayMusic(music, 0); + Mix_VolumeMusic(sound_volume); + } + + /* init the linked lists */ + LIST_INIT(&cat_list); + LIST_INIT(&rainbow_list); + LIST_INIT(&sparkle_list); + + if (cat_num == 1) + { + add_cat((screen_width - cat_width) / 2, (screen_height - cat_height)/2,1,1, &cat_list); + add_rainbow((screen_width - rainbow_width) / 2 - OFFSET, (screen_height - rainbow_height) / 2, &rainbow_list); + } + else + { + for (int i = 0; i < cat_num; ++i) + { + unsigned x = rand() % (screen_width - cat_width); + unsigned y = rand() % (screen_height - cat_height); + add_cat(x,y,1,1, &cat_list); + add_rainbow(x - OFFSET, y, &rainbow_list); + } + } + + + /* clear initial input */ + while(SDL_PollEvent(&event)); + + /* Pre-populate with sparkles */ + for (int i = 0; i < 200; ++i){update_sparkles(&sparkle_list);} + +} + +SDL_Surface* load_image(const char* path) + { + SDL_Surface* loadedImage = NULL; + SDL_Surface* optimizedImage = NULL; + + loadedImage = IMG_Load(path); + if(loadedImage) + { + SDL_PixelFormat *format = SDL_AllocFormat(SDL_PIXELFORMAT_RGBA32); + optimizedImage = SDL_ConvertSurface(loadedImage, format, 0); + SDL_FreeSurface(loadedImage); + } + + return optimizedImage; + } + +void load_images() + { + char buffer[BUF_SZ]; + SDL_Surface *cat_img, *rainbow_img, *sparkle_img; + + /* Load images */ + snprintf(buffer, BUF_SZ, "%s/%s/cat.png", BASE_PATH, cat_dir); + cat_img = load_image(buffer); + + snprintf(buffer, BUF_SZ, "%s/%s/rainbow.png", BASE_PATH, cat_dir); + rainbow_img = load_image(buffer); + + + snprintf(buffer, BUF_SZ, "%s/%s/sparkle.png", BASE_PATH, cat_dir); + sparkle_img = load_image(buffer); + + /* Check everything loaded properly */ + if (!cat_img||!rainbow_img||!sparkle_img){errout("Error loading images.");} + + /* Create textures from images */ + cat_texture = SDL_CreateTextureFromSurface(renderer, cat_img); + rainbow_texture = SDL_CreateTextureFromSurface(renderer, rainbow_img); + sparkle_texture = SDL_CreateTextureFromSurface(renderer, sparkle_img); + + /* Get width and height from all the textures */ + SDL_QueryTexture(cat_texture, NULL, NULL, &cat_width, &cat_height); + SDL_QueryTexture(rainbow_texture, NULL, NULL, &rainbow_width, &rainbow_height); + SDL_QueryTexture(sparkle_texture, NULL, NULL, &sparkle_width, &sparkle_height); + } + +void load_music() + { + char buffer[BUF_SZ]; + + snprintf(buffer, BUF_SZ, "%s/%s/music.ogg", BASE_PATH, cat_dir); + music = Mix_LoadMUS(buffer); + + if (!music){fprintf(stderr,"Unable to load Ogg file: %s\n", Mix_GetError());} + else {Mix_HookMusicFinished(restart_music);} + } + +void load_resource_data() + { + char buffer[BUF_SZ]; + + snprintf(buffer, BUF_SZ, "%s/%s/data", BASE_PATH, cat_dir); + FILE *fp = fopen(buffer, "r"); + + if (!fp){errout("Error opening resource data file");} + + cat_count = atoi(fgets(buffer, BUF_SZ, fp)); + rainbow_count = atoi(fgets(buffer, BUF_SZ, fp)); + sparkle_count = atoi(fgets(buffer, BUF_SZ, fp)); + + if (!cat_count||!rainbow_count||!sparkle_count){errout("Error reading or parsing resource data file.");} + + fclose(fp); + } + +void restart_music() + { + Mix_PlayMusic(music, 0); + } + +void run() + { + unsigned int last_draw, draw_time; + + while(running) + { + last_draw = SDL_GetTicks(); + + /* it's faster to just clear the whole renderer rather than individually overwriting each sprite */ + SDL_RenderClear(renderer); + + update_sparkles(&sparkle_list); + update_rainbows(&cat_list, &rainbow_list); + draw_sparkles(&sparkle_list); + draw_rainbows(&rainbow_list); + draw_cats(&cat_list); + + handle_input(); + + if (sine){handle_sine(&cat_list);} + if (bounce){handle_bounce(&cat_list);} + + /* display the frame */ + SDL_RenderPresent(renderer); + + /* animation sequence increment and looping */ + if (++cat_sprite >= cat_count){cat_sprite = 0;} + if (++rainbow_sprite >= rainbow_count){rainbow_sprite = 0;} + if (++sparkle_sprite >= sparkle_count){sparkle_sprite = 0;} + + /* Avoid wasting CPU & GPU by only drawing at the framerate */ + draw_time = SDL_GetTicks() - last_draw; + if (draw_time < (1000 / FRAMERATE)){SDL_Delay((1000 / FRAMERATE) - draw_time);} + } + } + +void usage(char* exname) + { + fprintf(stderr,"Usage: %s [OPTIONS]\n\ + -h, --help This help message.\n\ + -f, --fullscreen Enable fullscreen (default).\n\ + -w, --windowed Disable fullscreen.\n\ + -c, --catsize Choose size to scale cat to (between 0.1 to 10.0)\n\ + -a, --nocursor Don't show the cursor (default).\n\ + -b, --cursor Show the cursor.\n\ + -e, --nosound Don't play sound.\n\ + -v, --volume Set Volume, if enabled, from 0 - 128.\n\ + -r, --resolution Argument format: <width>x<height> (1200x800 default).\n\ + -d, --data-set Use an alternate data set. Packaged with\n\ + this program by default are \"default\"\n\ + and \"freedom\" sets.\n\ + -s, --sine Make cat move in a sine wave.\n\ + -o, --bounce Bounce cat around.\n\ + -n, --count Number of cats to spawn.\n\ + -V, --version Version and copyright information.\n", exname); + + exit(0); + } + +int main(int argc, char *argv[]) + { +// get_screen_info(); +// exit(1); + handle_args(argc, argv); + init(); + run(); + cleanup(); + return 0; + } @@ -0,0 +1,29 @@ + /* nyancat in GNU C + Copyright © 2024 DiffieHellman + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero General Public License as + published by the Free Software Foundation, either version 3 of the + License, or (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#ifndef MAIN_H +#define MAIN_H + +void load_images(); +void load_resource_data(); +void load_music(); +void restart_music(); +void usage(char *exname); +void *ec_malloc(unsigned int size); +void errout(char *str); + +#endif @@ -1,474 +1,199 @@ -/* ============================================================================================ */
-/* This software is created by John Anthony and comes with no warranty of any kind. */
-/* */
-/* If you like this software and would like to contribute to its continued improvement */
-/* then please feel free to submit bug reports here: www.github.com/JohnAnthony */
-/* */
-/* This program is licensed under the GPLv3 and is Free Software */
-/* The full license can be found at http://www.gnu.org/licenses/gpl.html */
-/* ============================================================================================ */
-#include <SDL2/SDL.h>
-#include <SDL2/SDL_image.h>
-#include <SDL2/SDL_mixer.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdbool.h>
-#include <time.h>
-#include <string.h>
-#include <getopt.h>
-#include <stdint.h>
-#include <math.h>
-#include <bsd/sys/queue.h> // linked list implementation
-
-#include <stdio.h>
-#include <X11/extensions/Xrandr.h>
-
-/* Predecs */
-void *ec_malloc(unsigned int size);
-void errout(char *str);
-void load_images();
-void load_resource_data();
-void load_music();
-void restart_music();
-void usage(char *exname);
-
-#include "globals.h"
-#include "draw.h"
-
-void get_screen_info()
-{
-int iscres, icrtc;
-
-Display *disp = XOpenDisplay(0);
-XRRScreenResources *screen = XRRGetScreenResources(disp, DefaultRootWindow(disp));
-for (iscres = screen->noutput; iscres > 0; )
- {
- --iscres;
-
- XRROutputInfo *info = XRRGetOutputInfo (disp, screen, screen->outputs[iscres]);
- if (info->connection == RR_Connected)
- {
- for (icrtc = info->ncrtc; icrtc > 0;)
- {
- --icrtc;
-
- XRRCrtcInfo *crtc_info = XRRGetCrtcInfo (disp, screen, screen->crtcs[icrtc]);
- fprintf(stderr, "==> %dx%d+%dx%d\n", crtc_info->x, crtc_info->y, crtc_info->width, crtc_info->height);
-
- XRRFreeCrtcInfo(crtc_info);
- }
- }
- XRRFreeOutputInfo (info);
- }
- XRRFreeScreenResources(screen);
-}
-
-
-
-
-
-
-void cleanup(void)
- {
- Mix_HaltMusic();
- Mix_FreeMusic(music);
- Mix_CloseAudio();
-
- /* free cats */
- cat_instance *c, *ctmp;
- LIST_FOREACH_SAFE(c, &cat_list, entries, ctmp)
- {
- LIST_REMOVE(c, entries);
- free(c);
- }
-
- /* free rainbows */
- rainbow_instance *r, *rtmp;
- LIST_FOREACH_SAFE(r, &rainbow_list, entries, rtmp)
- {
- LIST_REMOVE(r, entries);
- free(r);
- }
-
-
- /* free sparkles */
- sparkle_instance *s, *stmp;
- LIST_FOREACH_SAFE(s, &sparkle_list, entries, stmp)
- {
- LIST_REMOVE(s, entries);
- free(s);
- }
-
-
- SDL_DestroyRenderer(renderer);
- SDL_Quit();
- }
-
-void *ec_malloc(unsigned int size)
- {
- void *ptr = malloc(size);
- if (!ptr){errout("In ec_malloc -- unable to allocate memory.");}
-
- return ptr;
- }
-
-void errout(char *str)
- {
- if (str){fprintf(stderr,"%s\n",str);}
- exit(1);
- }
-
-
-void handle_args(int argc, char *argv[])
- {
- int c, volume;
- char *x; //position of x in resolution (e.g. 800x600)
-
- while(1)
- {
- static struct option long_options[] =
- {
- {"help", no_argument, 0, 'h'},
- {"fullscreen", no_argument, 0, 'f'},
- {"windowed", no_argument, 0, 'w'},
- {"catsize", required_argument, 0, 'c'},
- {"nocursor", no_argument, 0, 'a'},
- {"cursor", no_argument, 0, 'b'},
- {"nosound", no_argument, 0, 'e'},
- {"volume", required_argument, 0, 'v'},
- {"resolution", required_argument, 0, 'r'},
- {"data-set", required_argument, 0, 'd'},
- {"sine", no_argument, 0, 's'},
- {"count", required_argument, 0, 'n'},
- {"version", no_argument, 0, 'V'},
- {0, 0, 0, 0}
- };
-
- /* getopt_long stores the option index here. */
- int option_index = 0;
- c = getopt_long(argc, argv, "hfwc:abev:r:d:sn:V", long_options, &option_index);
-
- /* detect the end of the options. */
- if (c == -1){break;}
-
- switch (c)
- {
- case 'h':
- usage(argv[0]);
- break;
- case 'f':
- fullscreen = true;
- break;
- case 'w':
- fullscreen = false;
- break;
- case 'c':
- cat_size = atof(optarg);
- if (cat_size < 0.1 || cat_size > 10)
- {
- fprintf(stderr,"Size of cat is invalid, set to default.\n");
- cat_size = 1;
- }
- break;
- case 'a':
- cursor = false;
- break;
- case 'b':
- cursor = true;
- break;
- case 'e':
- sound = false;
- break;
- case 'v':
- volume = atoi(optarg);
- if(volume >= 0 && volume <= 128){sound_volume = volume;}
- else
- {
- fprintf(stderr,"Arguments for Volume are not valid. Disabling sound.\n");
- sound = false;
- }
- break;
-
- case 'r':
- x = strchr(optarg,'x');
- if (!x){fprintf(stderr,"Argument for resolution is invalid, resolution set to default.\n"); break;}
- *x = '\0';
-
- if (*(x+1) == '\0'){fprintf(stderr,"Argument for resolution is invalid, resolution set to default.\n"); break;}
-
- int dims[2] = {atoi(optarg), atoi(x+1)};
- if (dims[0] >= 0 && dims[0] < 10000 && dims[1] >= 0 && dims[1] < 5000)
- {
- SCREEN_WIDTH = dims[0];
- SCREEN_HEIGHT = dims[1];
- }
- else {fprintf(stderr,"Argument for resolution is invalid, resolution set to default.\n");}
- break;
-
- case 'd':
- if (cat_dir){free(cat_dir);}
- cat_dir = strdup(optarg);
- break;
-
- case 's':
- sine = true;
- break;
-
- case 'n':
- cat_num = atoi(optarg);
- if (cat_num <= 0 || cat_num > 10000)
- {
- fprintf(stderr,"Number of cats are invalid, set to 1.\n");
- cat_num = 1;
- }
- break;
- case 'V':
- printf("Copyright (C) 2020 John Antony, 2022 DiffieHellman\n"
- "License GPLv3: GNU GPL version 3 <http://gnu.org/licenses/gpl.html>\n\n"
- "This is free software; you are free to change and redistribute it.\n"
- "There is NO WARRANTY, to the extent permitted by law.\n");
- exit(0);
-
- case '?':
- /* getopt_long already printed an error message. */
- break;
-
- default:
- exit(1);
- }
- }
- if (!cat_dir){cat_dir = "default";}
-}
-
-void handle_input(void)
- {
- while(SDL_PollEvent(&event))
- {
- switch (event.type)
- {
- case SDL_KEYDOWN:
- case SDL_QUIT:
- running = false;
- break;
- }
- }
- }
-
-void init(void)
- {
- srand(time(NULL));
-
- SDL_Init(SDL_INIT_VIDEO|SDL_INIT_AUDIO|IMG_INIT_PNG);
-
- SDL_Window *window;
- if (fullscreen)
- {
- window = SDL_CreateWindow("Nyan cat", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 0, 0, SDL_WINDOW_FULLSCREEN_DESKTOP);
- /* Set screen width and height to fullscreen resolution*/
- SDL_DisplayMode current;
- if (SDL_GetCurrentDisplayMode(0, ¤t) != 0){errout("SDL could not get display mode for screen");}
- SCREEN_WIDTH = current.w;
- SCREEN_HEIGHT = current.h;
- }
-
- else {window = SDL_CreateWindow("Nyan cat", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, SCREEN_WIDTH, SCREEN_HEIGHT, SDL_WINDOW_MAXIMIZED);}
- if (!cursor){SDL_ShowCursor(0);}
-
- renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
-
- load_images();
- load_resource_data();
-
- /* Divide the *_width by *_count, so we don't need to calculate width/count every time */
- cat_width /= cat_count;
- rainbow_width /= rainbow_count;
- sparkle_width /= sparkle_count;
-
- SDL_SetRenderDrawColor(renderer, 0x00, 0x33, 0x66, 255);
- SDL_RenderClear(renderer);
-
- if (sound)
- {
- Mix_OpenAudio(44100, AUDIO_S16, 2, 256);
- load_music();
- Mix_PlayMusic(music, 0);
- Mix_VolumeMusic(sound_volume);
- }
-
- /* init the linked lists */
- LIST_INIT(&cat_list);
- LIST_INIT(&rainbow_list);
- LIST_INIT(&sparkle_list);
-
- if (cat_num == 1)
- {
- add_cat((SCREEN_WIDTH - cat_width) / 2, (SCREEN_HEIGHT - cat_height)/2);
- add_rainbow((SCREEN_WIDTH - rainbow_width) / 2 - OFFSET, (SCREEN_HEIGHT - rainbow_height) / 2);
- }
- else
- {
- for (int i = 0; i < cat_num; ++i)
- {
- unsigned x = rand() % (SCREEN_WIDTH - cat_width);
- unsigned y = rand() % (SCREEN_HEIGHT - cat_height);
- add_cat(x,y);
- add_rainbow(x - OFFSET, y);
- }
- }
-
-
- /* clear initial input */
- while(SDL_PollEvent(&event));
-
- /* Pre-populate with sparkles */
- for (int i = 0; i < 200; ++i){update_sparkles();}
-
-}
-
-SDL_Surface* load_image(const char* path)
- {
- SDL_Surface* loadedImage = NULL;
- SDL_Surface* optimizedImage = NULL;
-
- loadedImage = IMG_Load(path);
- if(loadedImage)
- {
- SDL_PixelFormat *format = SDL_AllocFormat(SDL_PIXELFORMAT_RGBA32);
- optimizedImage = SDL_ConvertSurface(loadedImage, format, 0);
- SDL_FreeSurface(loadedImage);
- }
-
- return optimizedImage;
- }
-
-void load_images()
- {
- char buffer[BUF_SZ];
- SDL_Surface *cat_img, *rainbow_img, *sparkle_img;
-
- /* Load images */
- snprintf(buffer, BUF_SZ, "%s/%s/cat.png", BASE_PATH, cat_dir);
- cat_img = load_image(buffer);
-
- snprintf(buffer, BUF_SZ, "%s/%s/rainbow.png", BASE_PATH, cat_dir);
- rainbow_img = load_image(buffer);
-
-
- snprintf(buffer, BUF_SZ, "%s/%s/sparkle.png", BASE_PATH, cat_dir);
- sparkle_img = load_image(buffer);
-
- /* Check everything loaded properly */
- if (!cat_img||!rainbow_img||!sparkle_img){errout("Error loading images.");}
-
- /* Create textures from images */
- cat_texture = SDL_CreateTextureFromSurface(renderer, cat_img);
- rainbow_texture = SDL_CreateTextureFromSurface(renderer, rainbow_img);
- sparkle_texture = SDL_CreateTextureFromSurface(renderer, sparkle_img);
-
- /* Get width and height from all the textures */
- SDL_QueryTexture(cat_texture, NULL, NULL, &cat_width, &cat_height);
- SDL_QueryTexture(rainbow_texture, NULL, NULL, &rainbow_width, &rainbow_height);
- SDL_QueryTexture(sparkle_texture, NULL, NULL, &sparkle_width, &sparkle_height);
- }
-
-void load_music()
- {
- char buffer[BUF_SZ];
-
- snprintf(buffer, BUF_SZ, "%s/%s/music.ogg", BASE_PATH, cat_dir);
- music = Mix_LoadMUS(buffer);
-
- if (!music){fprintf(stderr,"Unable to load Ogg file: %s\n", Mix_GetError());}
- else {Mix_HookMusicFinished(restart_music);}
- }
-
-void load_resource_data()
- {
- char buffer[BUF_SZ];
-
- snprintf(buffer, BUF_SZ, "%s/%s/data", BASE_PATH, cat_dir);
- FILE *fp = fopen(buffer, "r");
-
- if (!fp){errout("Error opening resource data file");}
-
- cat_count = atoi(fgets(buffer, BUF_SZ, fp));
- rainbow_count = atoi(fgets(buffer, BUF_SZ, fp));
- sparkle_count = atoi(fgets(buffer, BUF_SZ, fp));
-
- if (!cat_count||!rainbow_count||!sparkle_count){errout("Error reading or parsing resource data file.");}
-
- fclose(fp);
- }
-
-void restart_music()
- {
- Mix_PlayMusic(music, 0);
- }
-
-void run()
- {
- unsigned int last_draw, draw_time;
-
- while(running)
- {
- last_draw = SDL_GetTicks();
-
- /* it's faster to just clear the whole renderer rather than individually overwriting each sprite */
- SDL_RenderClear(renderer);
-
- update_sparkles();
- update_rainbows();
- draw_sparkles();
- draw_rainbows();
- draw_cats();
-
- handle_input();
-
- if (sine){handle_sine();}
-
- /* display the frame */
- SDL_RenderPresent(renderer);
-
- /* animation sequence increment and looping */
- if (++cat_sprite >= cat_count){cat_sprite = 0;}
- if (++rainbow_sprite >= rainbow_count){rainbow_sprite = 0;}
- if (++sparkle_sprite >= sparkle_count){sparkle_sprite = 0;}
-
- /* Avoid wasting CPU & GPU by only drawing at the framerate */
- draw_time = SDL_GetTicks() - last_draw;
- if (draw_time < (1000 / FRAMERATE)){SDL_Delay((1000 / FRAMERATE) - draw_time);}
- }
- }
-
-void usage(char* exname)
- {
- fprintf(stderr,"Usage: %s [OPTIONS]\n\
- -h, --help This help message.\n\
- -f, --fullscreen Enable fullscreen (default).\n\
- -w, --windowed Disable fullscreen.\n\
- -c, --catsize Choose size to scale cat to (between 0.1 to 10.0)\n\
- -a, --nocursor Don't show the cursor (default).\n\
- -b, --cursor Show the cursor.\n\
- -e, --nosound Don't play sound.\n\
- -v, --volume Set Volume, if enabled, from 0 - 128.\n\
- -r, --resolution Argument format: <width>x<height> (1200x800 default).\n\
- -d, --data-set Use an alternate data set. Packaged with\n\
- this program by default are \"default\"\n\
- and \"freedom\" sets.\n\
- -s, --sine Make cat move in a sine wave.\n\
- -n, --count Number of cats to spawn.\n\
- -V, --version Version and copyright information.\n", exname);
-
- exit(0);
- }
-
-int main(int argc, char *argv[])
- {
-// get_screen_info();
-// exit(1);
- handle_args(argc, argv);
- init();
- run();
- cleanup();
- return 0;
- }
+ /* nyancat in GNU C + Copyright © 2024 DiffieHellman + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero General Public License as + published by the Free Software Foundation, either version 3 of the + License, or (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#include <SDL2/SDL.h> +#include <SDL2/SDL_image.h> +#include <SDL2/SDL_mixer.h> +#include <stdbool.h> + +#include "nyan.h" +#include <bsd/sys/queue.h> // linked list implementation +#include "main.h" + +void add_sparkle(struct head_sparkle *sparkle_list) + { + sparkle_instance *new = ec_malloc(sizeof(sparkle_instance)); + + new->loc.x = screen_width + 80; + new->loc.y = (rand() % (screen_height + sparkle_height)) - sparkle_height; + new->frame = 0; + new->frame_mov = 1; + new->speed = 10 + (rand() % 30); + new->layer = rand() % 2; + + LIST_INSERT_HEAD(sparkle_list, new, entries); + } + +void add_cat(unsigned int x, unsigned int y, int bx, int by, struct head_cat *cat_list) + { + cat_instance *new = ec_malloc(sizeof(cat_instance)); + + new->loc.x = x; + new->loc.y = y; + + new->bounce_direction.x = bx; + new->bounce_direction.y = by; + + LIST_INSERT_HEAD(cat_list, new, entries); + } + +void add_rainbow(unsigned int x, unsigned int y, struct head_rainbow *rainbow_list) + { + rainbow_instance *new = ec_malloc(sizeof(rainbow_instance)); + + new->loc.x = x; + new->loc.y = y; + new->sprite = rainbow_sprite; + + LIST_INSERT_HEAD(rainbow_list, new, entries); + } + +void update_rainbows(struct head_cat *cat_list, struct head_rainbow *rainbow_list) + { + cat_instance *c; + + /* rainbows need to be placed according to the cat position (which changes constantly) */ + LIST_FOREACH(c, cat_list, entries) + { + add_rainbow((screen_width - rainbow_width) / 2 - OFFSET /* Default position in the center */ + - ((screen_width - cat_width) / 2 - c->loc.x), /* Plus the amount the cat is off the center */ + (screen_height - rainbow_height) / 2 /* Default position in the center */ + - ((screen_height - cat_height) / 2 - c->loc.y), rainbow_list);/* Plus the amount the cat is off the center */ + } + + + rainbow_instance *r, *rtmp; + + /* update the position of each rainbow left */ + LIST_FOREACH_SAFE(r, rainbow_list, entries, rtmp) + { + r->loc.x -= rainbow_width; + + /* if rainbow is off screen, delete and free() it */ + if ((r->loc.x + rainbow_width) < 0) + { + LIST_REMOVE(r, entries); + free(r); + } + } + } + +void update_sparkles(struct head_sparkle *sparkle_list) + { + + /* ensure screen has enough sparkles at all times */ + sparkle_spawn_counter += rand() % screen_height; + while (sparkle_spawn_counter >= 1000) + { + add_sparkle(sparkle_list); + sparkle_spawn_counter -= 1000; + } + + sparkle_instance *s, *stmp; + LIST_FOREACH_SAFE(s, sparkle_list, entries, stmp) + { + /* move sparkle left */ + s->loc.x -= s->speed; + s->frame += s->frame_mov; + + /* reset sparkle frame */ + if (s->frame + 1 >= sparkle_count || s->frame < 1){s->frame_mov = 0 - s->frame_mov;} + + /* if sparkle offscreen, delete it */ + if ((s->loc.x + sparkle_width) < 0) + { + LIST_REMOVE(s, entries); + free(s); + } + } + } + +void handle_sine(struct head_cat *cat_list) + { + cat_instance *c; + + LIST_FOREACH(c, cat_list, entries) + { + /* sine magic */ + double pos = (screen_height - cat_height)/2 * sin((2*PI*444444)*t); + c->loc.y = ((screen_height - cat_height)/2 - pos); + +// double posx = (screen_width - cat_height)/2 * sin((2*PI*444444)*t); +// c->loc.x = ((screen_width - cat_height)/2 - posx); + } + + t += 20; + } + +void handle_bounce(struct head_cat *cat_list) + { + cat_instance *c; + + LIST_FOREACH(c, cat_list, entries) + { + /* bounce magic */ + if (c->loc.x < 0 || c->loc.x > (screen_width-cat_width)){c->bounce_direction.x = -(c->bounce_direction.x);} + if (c->loc.y < 0 || c->loc.y > (screen_height-(cat_width/2))){c->bounce_direction.y = -(c->bounce_direction.y);} + c->loc.x += (c->bounce_direction.x * (screen_width/64)); + c->loc.y += (c->bounce_direction.y * (screen_height/64)); + } + } + +void draw_cats(struct head_cat *cat_list) + { + cat_instance* c; + + LIST_FOREACH(c, cat_list, entries) + { + /* source sprite dimensions */ + SDL_Rect srcrect = {cat_sprite * cat_width, 0, cat_width, cat_height}; + /* dimensions of destination rectangle */ + SDL_Rect dstrect = {c->loc.x, c->loc.y, cat_width*cat_size, cat_height*cat_size}; + + SDL_RenderCopy(renderer, cat_texture, &srcrect, &dstrect); + } + } + +void draw_rainbows(struct head_rainbow *rainbow_list) + { + rainbow_instance* r; + + LIST_FOREACH(r, rainbow_list, entries) + { + /* source sprite dimensions */ + SDL_Rect srcrect = {r->sprite * rainbow_width, 0, rainbow_width, rainbow_height}; + /* dimensions of destination rectangle */ + SDL_Rect dstrect = {r->loc.x, r->loc.y, rainbow_width*cat_size, rainbow_height*cat_size}; + + SDL_RenderCopy(renderer, rainbow_texture, &srcrect, &dstrect); + } + } + +void draw_sparkles(struct head_sparkle *sparkle_list) + { + sparkle_instance* s; + + LIST_FOREACH(s, sparkle_list, entries) + { + /* source sprite dimensions */ + SDL_Rect srcrect = {sparkle_sprite * sparkle_width, 0, sparkle_width, sparkle_height}; + /* dimensions of destination rectangle */ + SDL_Rect dstrect = {s->loc.x, s->loc.y, sparkle_width*cat_size, sparkle_height*cat_size}; + + SDL_RenderCopy(renderer, sparkle_texture, &srcrect, &dstrect); + } + } @@ -0,0 +1,33 @@ + /* nyancat in GNU C + Copyright © 2024 DiffieHellman + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU Affero General Public License as + published by the Free Software Foundation, either version 3 of the + License, or (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License + along with this program. If not, see <https://www.gnu.org/licenses/>. + */ + +#ifndef NYAN_H +#define NYAN_H + +#include "globals.h" +void add_sparkle(struct head_sparkle *sparkle_list); +void add_cat(unsigned int x, unsigned int y, int bx, int by, struct head_cat *cat_list); +void add_rainbow(unsigned int x, unsigned int y, struct head_rainbow *rainbow_list); +void update_rainbows(struct head_cat *cat_list, struct head_rainbow *rainbow_list); +void update_sparkles(struct head_sparkle *sparkle_list); +void handle_sine(struct head_cat *cat_list); +void handle_bounce(struct head_cat *cat_list); +void draw_cats(struct head_cat *cat_list); +void draw_rainbows(struct head_rainbow *rainbow_list); +void draw_sparkles(struct head_sparkle *sparkle_list); + +#endif |