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Add pacman_march design with animated Pac-Man, ghosts and dots
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Lines changed: 247 additions & 1 deletion

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‎README.md‎

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@@ -95,6 +95,9 @@ Self-playing Space Invaders. Use `-C` for colored mode.
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### alien_march
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Animated Space Invader aliens scrolling across the screen like a marquee. Use `-C` for colored mode, `-R` to reverse direction, `-S <ticks>` to control scroll speed (default: 4), `-N <ticks>` to control animation speed (default: 1).
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### pacman_march
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Pac-Man chased by ghosts scrolling across the screen with dots. Use `-C` for colored mode, `-R` to reverse direction, `-S <ticks>` for scroll speed (default: 4), `-N <ticks>` for animation speed (default: 1).
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### Examples
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```bash
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./pixelwall -d alien_march -C # Animated aliens scrolling with colors
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./pixelwall -d alien_march -R -S 6 # Slower scroll to the right
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./pixelwall -d alien_march -S 2 -N 4 # Fast scroll, slow animation
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./pixelwall -d pacman_march -C # Pac-Man with classic colors
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./pixelwall -T 30 # Cycle through all designs every 30s
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```
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‎pixelwall/Makefile‎

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@@ -29,7 +29,8 @@ OBJECTS = \
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design_tetris.o \
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design_starfield.o \
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design_invaders.o \
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design_alien_march.o
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design_alien_march.o \
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design_pacman_march.o
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.PHONY: all
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all: $(PROGRAM)

‎pixelwall/design_pacman_march.c‎

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/*
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DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
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Version 2, December 2004
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Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
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Everyone is permitted to copy and distribute verbatim or modified
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copies of this license document, and changing it is allowed as long
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as the name is changed.
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DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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0. You just DO WHAT THE FUCK YOU WANT TO.
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*/
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#include "pixelwall.h"
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#include <stdbool.h>
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#define SPRITE_W 7
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#define SPRITE_H 7
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#define NUM_FRAMES 2
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#define DEFAULT_SPEED 4
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#define DEFAULT_ANIM_SPEED 1
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// Pac-Man: 2 frames (mouth open / mouth closed)
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static const uint8_t pacman[NUM_FRAMES][SPRITE_H] = {
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// Frame 0 - mouth open
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{
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0x1C, // ..###..
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0x3E, // .#####.
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0x7C, // #####..
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0x70, // ###....
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0x7C, // #####..
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0x3E, // .#####.
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0x1C, // ..###..
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},
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// Frame 1 - mouth closing
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{
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0x1C, // ..###..
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0x3E, // .#####.
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0x7E, // ######.
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0x7F, // #######
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0x7E, // ######.
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0x3E, // .#####.
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0x1C, // ..###..
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},
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};
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// Ghost: 2 frames (legs alternate)
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static const uint8_t ghost[NUM_FRAMES][SPRITE_H] = {
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// Frame 0
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{
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0x1C, // ..###..
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0x3E, // .#####.
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0x6B, // ##.##.#
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0x7F, // #######
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0x7F, // #######
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0x7F, // #######
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0x55, // #.#.#.#
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},
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// Frame 1
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{
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0x1C, // ..###..
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0x3E, // .#####.
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0x6B, // ##.##.#
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0x7F, // #######
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0x7F, // #######
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0x7F, // #######
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0x2A, // .#.#.#.
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},
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};
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// Dot: small pellet centered in a 3-wide space (only middle row has a pixel)
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#define DOT_W 3
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#define DOT_H 7
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// Pattern layout:
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// [pacman 7] [gap 2] [dot 3] [dot 3] [dot 3] [ghost 7] [gap 2] [ghost 7] [gap 2]
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// Total: 7 + 2 + 3 + 3 + 3 + 7 + 2 + 7 + 2 = 36
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#define NUM_ELEMENTS 9
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static const int element_widths[NUM_ELEMENTS] = { 7, 2, 3, 3, 3, 7, 2, 7, 2 };
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// Element types: 0=pacman, 1=gap, 2=dot, 3=ghost
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static const int element_types[NUM_ELEMENTS] = { 0, 1, 2, 2, 2, 3, 1, 3, 1 };
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#define TOTAL_PATTERN_W 36
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typedef struct {
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int offset;
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int dir;
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int tick;
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int speed;
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int anim_tick;
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int anim_speed;
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int frame;
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bool colorful;
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Color color;
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Color pacman_color;
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Color ghost_colors[2];
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Color dot_color;
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} PacmanMarchData;
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static void PrintHelp() {
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printf(" -C Enable colored mode\n");
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printf(" -R Reverse direction (scroll right)\n");
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printf(" -S <ticks> Scroll speed, higher = slower (default: %d)\n", DEFAULT_SPEED);
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printf(" -N <ticks> Animation speed, higher = slower (default: %d)\n", DEFAULT_ANIM_SPEED);
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printf(" -P <color> Pac-Man color (R,G,B, default: 255,255,85)\n");
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printf(" -G <color> Ghost 1 color (R,G,B, default: 255,85,85)\n");
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printf(" -K <color> Ghost 2 color (R,G,B, default: 85,255,255)\n");
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printf(" -E <color> Dot color (R,G,B, default: 255,185,80)\n");
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}
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static void *Create(Grid *grid, int argc, char *argv[]) {
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(void)grid;
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PacmanMarchData *pd = calloc(1, sizeof(PacmanMarchData));
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if (!pd) return NULL;
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pd->color = GREEN;
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pd->dir = 1;
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pd->speed = DEFAULT_SPEED;
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pd->anim_speed = DEFAULT_ANIM_SPEED;
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pd->colorful = false;
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pd->pacman_color = (Color){255, 255, 85, 255};
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pd->ghost_colors[0] = (Color){255, 85, 85, 255};
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pd->ghost_colors[1] = (Color){85, 255, 255, 255};
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pd->dot_color = (Color){255, 185, 80, 255};
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int opt;
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optind = 1;
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while ((opt = getopt(argc, argv, ":d:CRS:N:P:G:K:E:")) != -1) {
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switch (opt) {
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case 'C': pd->colorful = true; break;
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case 'R': pd->dir = -1; break;
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case 'S':
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pd->speed = atoi(optarg);
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if (pd->speed < 1) pd->speed = 1;
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break;
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case 'N':
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pd->anim_speed = atoi(optarg);
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if (pd->anim_speed < 1) pd->anim_speed = 1;
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break;
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case 'P': pd->pacman_color = ParseColor(optarg); break;
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case 'G': pd->ghost_colors[0] = ParseColor(optarg); break;
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case 'K': pd->ghost_colors[1] = ParseColor(optarg); break;
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case 'E': pd->dot_color = ParseColor(optarg); break;
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}
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}
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return pd;
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}
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static void DrawColumn(PacmanMarchData *pd, Grid *grid, int screen_x, int pattern_col,
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int start_row, int frame) {
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// Find which element this column belongs to
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int col = pattern_col;
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int elem = 0;
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while (elem < NUM_ELEMENTS && col >= element_widths[elem]) {
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col -= element_widths[elem];
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elem++;
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}
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if (elem >= NUM_ELEMENTS) return;
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int type = element_types[elem];
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if (type == 1) return; // gap
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if (type == 2) {
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// Dot: single pixel in the center (col 1, row 3)
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if (col == 1) {
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int gy = start_row + SPRITE_H / 2;
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if (gy >= 0 && gy < grid->rows) {
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Color c = pd->colorful ? pd->dot_color : pd->color;
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GridSetColor(grid, (Pos){screen_x, gy}, c);
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}
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}
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return;
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}
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const uint8_t *sprite;
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Color c;
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if (type == 0) {
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// Pac-Man
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sprite = pacman[frame];
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c = pd->colorful ? pd->pacman_color : pd->color;
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} else {
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// Ghost - figure out which one (first or second ghost in pattern)
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int ghost_idx = (elem == 5) ? 0 : 1;
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sprite = ghost[frame];
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c = pd->colorful ? pd->ghost_colors[ghost_idx] : pd->color;
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}
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for (int r = 0; r < SPRITE_H; r++) {
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int gy = start_row + r;
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if (gy < 0 || gy >= grid->rows) continue;
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if ((sprite[r] >> (SPRITE_W - 1 - col)) & 1) {
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GridSetColor(grid, (Pos){screen_x, gy}, c);
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}
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}
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}
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static void UpdateFrame(Grid *grid, void *data) {
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PacmanMarchData *pd = (PacmanMarchData *)data;
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Color bg = grid->conf.backgroundColor;
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GridFillColor(grid, bg);
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int start_row = (grid->rows - SPRITE_H) / 2;
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for (int x = 0; x < grid->cols; x++) {
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int pcol = ((x + pd->offset) % TOTAL_PATTERN_W + TOTAL_PATTERN_W) % TOTAL_PATTERN_W;
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DrawColumn(pd, grid, x, pcol, start_row, pd->frame);
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}
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pd->tick++;
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if (pd->tick >= pd->speed) {
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pd->tick = 0;
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pd->offset += pd->dir;
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}
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pd->anim_tick++;
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if (pd->anim_tick >= pd->anim_speed) {
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pd->anim_tick = 0;
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pd->frame = (pd->frame + 1) % NUM_FRAMES;
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}
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}
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static void Destroy(void *data) {
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free(data);
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}
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Design pacmanMarchDesign = {
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.name = "pacman_march",
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.PrintHelp = PrintHelp,
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.Create = Create,
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.UpdateFrame = UpdateFrame,
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.Destroy = Destroy,
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};

‎pixelwall/designs.h‎

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@@ -31,6 +31,7 @@ extern Design tetrisDesign;
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extern Design starfieldDesign;
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extern Design invadersDesign;
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extern Design alienMarchDesign;
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extern Design pacmanMarchDesign;
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Design *designs[] = {
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&snakeDesign,
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&starfieldDesign,
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&invadersDesign,
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&alienMarchDesign,
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&pacmanMarchDesign,
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};

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