Luxferre
58071b374c
Font: add missing bitmap glyphs (/ # * + =) to both Snake and Tetris so control labels like '4/6 MOVE' and '# PAUSE' render correctly. Also hoist XSetForeground out of the per-pixel loop in draw_text (both games). Snake: remove the wall-collision death; the head now wraps through the opposite edge ((hx+COLS)%COLS, (hy+ROWS)%ROWS). Base speed raised from 70->100 px/sec (~128ms -> ~90ms per step) so it feels less laggy; the +1 px/sec per 5 food progressive difficulty is unchanged.
520 lines
18 KiB
C++
520 lines
18 KiB
C++
// tetris.cpp - Tetris for Bananarchy (Sxmo/dwm, 240x296)
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// Standalone X11 application in C++. Self-contained: uses a built-in 5x7
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// bitmap font so it has no font-file dependency.
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//
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// Controls (Nokia keypad + D-pad):
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// 4 / Left -> move left 6 / Right -> move right
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// 2 / Up -> rotate CW 8 / Down -> soft drop
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// 0 / Space -> hard drop # / * / P -> pause
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// 5 / OK -> resume / new game
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// Back / Esc -> quit
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//
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// Build: g++ -O2 tetris.cpp -lX11 -o tetris
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#include <X11/Xlib.h>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <ctime>
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#include <unistd.h>
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#include <sys/select.h>
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#include <sys/time.h>
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#include <X11/Xutil.h>
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#include <X11/keysym.h>
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#include <X11/Xatom.h>
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static const int TOPBAR = 24;
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static const int PCOLS = 10;
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static const int PROWS = 20;
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static const int CELL = 14;
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// ---- 5x7 bitmap font ----
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struct Glyph { char ch; unsigned char r[7]; };
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static const Glyph GLYPHS[] = {
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{' ', {0,0,0,0,0,0,0}},
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{'!', {0b00100,0b00100,0b00100,0b00100,0b00100,0,0b00100}},
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{'.', {0,0,0,0,0,0b00100,0b00100}},
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{'-', {0,0,0,0b11111,0,0,0}},
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{':', {0,0b00100,0b00100,0,0b00100,0b00100,0}},
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{'?', {0b01110,0b10001,0b00001,0b00110,0b00100,0,0b00100}},
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{'A', {0b01110,0b10001,0b10001,0b11111,0b10001,0b10001,0b10001}},
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{'B', {0b11110,0b10001,0b10001,0b11110,0b10001,0b10001,0b11110}},
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{'C', {0b01110,0b10001,0b10000,0b10000,0b10000,0b10001,0b01110}},
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{'E', {0b11111,0b10000,0b10000,0b11110,0b10000,0b10000,0b11111}},
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{'F', {0b11111,0b10000,0b10000,0b11110,0b10000,0b10000,0b10000}},
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{'G', {0b01110,0b10001,0b10000,0b10111,0b10001,0b10001,0b01111}},
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{'I', {0b01110,0b00100,0b00100,0b00100,0b00100,0b00100,0b01110}},
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{'L', {0b10000,0b10000,0b10000,0b10000,0b10000,0b10000,0b11111}},
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{'M', {0b10001,0b11011,0b10101,0b10101,0b10001,0b10001,0b10001}},
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{'N', {0b10001,0b10001,0b11001,0b10101,0b10011,0b10001,0b10001}},
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{'O', {0b01110,0b10001,0b10001,0b10001,0b10001,0b10001,0b01110}},
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{'P', {0b11110,0b10001,0b10001,0b11110,0b10000,0b10000,0b10000}},
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{'R', {0b11110,0b10001,0b10001,0b11110,0b10100,0b10010,0b10001}},
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{'S', {0b01111,0b10000,0b10000,0b01110,0b00001,0b00001,0b11110}},
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{'T', {0b11111,0b00100,0b00100,0b00100,0b00100,0b00100,0b00100}},
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{'V', {0b10001,0b10001,0b10001,0b10001,0b10001,0b01010,0b00100}},
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{'X', {0b10001,0b10001,0b01010,0b00100,0b01010,0b10001,0b10001}},
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{'Y', {0b10001,0b10001,0b01010,0b00100,0b00100,0b00100,0b00100}},
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{'D', {0b11110,0b10001,0b10001,0b10001,0b10001,0b10001,0b01110}},
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{'J', {0b00010,0b00010,0b00010,0b00010,0b10010,0b10010,0b01100}},
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{'K', {0b10001,0b10010,0b10100,0b11000,0b10100,0b10010,0b10001}},
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{'Q', {0b01110,0b10001,0b10001,0b10001,0b10101,0b10010,0b01101}},
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{'U', {0b10001,0b10001,0b10001,0b10001,0b10001,0b10001,0b01110}},
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{'W', {0b10001,0b10001,0b10001,0b10101,0b10101,0b11011,0b10001}},
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{'Z', {0b11111,0b00010,0b00100,0b01000,0b10000,0b10000,0b11111}},
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{'0', {0b01110,0b10011,0b10101,0b10101,0b11001,0b10001,0b01110}},
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{'1', {0b00100,0b01100,0b00100,0b00100,0b00100,0b00100,0b01110}},
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{'2', {0b01110,0b10001,0b00001,0b00110,0b01000,0b10000,0b11111}},
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{'3', {0b11110,0b00001,0b00001,0b01110,0b00001,0b00001,0b11110}},
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{'4', {0b00010,0b00110,0b01010,0b10010,0b11111,0b00010,0b00010}},
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{'5', {0b11111,0b10000,0b11110,0b00001,0b00001,0b10001,0b01110}},
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{'6', {0b00110,0b01000,0b10000,0b11110,0b10001,0b10001,0b01110}},
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{'7', {0b11111,0b00001,0b00010,0b00100,0b01000,0b01000,0b01000}},
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{'8', {0b01110,0b10001,0b10001,0b01110,0b10001,0b10001,0b01110}},
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{'9', {0b01110,0b10001,0b10001,0b01111,0b00001,0b00010,0b01100}},
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{'/', {0b00001,0b00010,0b00100,0b00100,0b01000,0b01000,0b10000}},
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{'#', {0b01010,0b01010,0b11111,0b01010,0b11111,0b01010,0b01010}},
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{'*', {0b00100,0b01010,0b11111,0b01010,0b00100,0b00000,0b00000}},
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{'+', {0b00000,0b00100,0b00100,0b11111,0b00100,0b00100,0b00000}},
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{'=', {0b00000,0b00000,0b11111,0b00000,0b11111,0b00000,0b00000}},
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};
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static const int NGLYPH = int(sizeof(GLYPHS) / sizeof(GLYPHS[0]));
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static const unsigned char* glyph(char c) {
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for (int i = 0; i < NGLYPH; i++)
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if (GLYPHS[i].ch == c) return GLYPHS[i].r;
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return GLYPHS[0].r;
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}
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// ---- X11 state ----
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static Display* dpy = nullptr;
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static Window win;
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static GC gc;
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static Pixmap back;
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static int screen;
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static int winW = 240, winH = 296; // overridden at runtime from the actual screen
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static unsigned long C_BG, C_FG, C_HEAD, C_FOOD, C_DIM;
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// ---- tetromino definitions (state 0 within a 4x4 box) ----
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// type 0..6 -> I,O,T,S,Z,J,L
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// 7 tetrominoes, each with 4 explicit rotation states (classic SRS-style).
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// type 0..6 -> I,O,T,S,Z,J,L. Coordinates are within a 4x4 box [x,y].
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static const int SHAPES[7][4][4][2] = {
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{ {{0,1},{1,1},{2,1},{3,1}}, {{2,0},{2,1},{2,2},{2,3}}, {{0,2},{1,2},{2,2},{3,2}}, {{1,0},{1,1},{1,2},{1,3}} }, // I
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{ {{1,0},{2,0},{1,1},{2,1}}, {{1,0},{2,0},{1,1},{2,1}}, {{1,0},{2,0},{1,1},{2,1}}, {{1,0},{2,0},{1,1},{2,1}} }, // O
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{ {{1,0},{0,1},{1,1},{2,1}}, {{1,0},{1,1},{2,1},{1,2}}, {{0,1},{1,1},{2,1},{1,2}}, {{1,0},{0,1},{1,1},{1,2}} }, // T
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{ {{1,0},{2,0},{0,1},{1,1}}, {{1,0},{1,1},{2,1},{2,2}}, {{1,1},{2,1},{0,2},{1,2}}, {{0,0},{0,1},{1,1},{1,2}} }, // S
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{ {{0,0},{1,0},{1,1},{2,1}}, {{2,0},{1,1},{2,1},{1,2}}, {{0,1},{1,1},{1,2},{2,2}}, {{1,0},{0,1},{1,1},{0,2}} }, // Z
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{ {{0,0},{0,1},{1,1},{2,1}}, {{1,0},{2,0},{1,1},{1,2}}, {{0,1},{1,1},{2,1},{2,2}}, {{1,0},{1,1},{0,2},{1,2}} }, // J
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{ {{2,0},{0,1},{1,1},{2,1}}, {{1,0},{1,1},{1,2},{2,2}}, {{0,1},{1,1},{2,1},{0,2}}, {{0,0},{1,0},{1,1},{1,2}} }, // L
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};
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enum State { PLAYING, PAUSED, GAMEOVER };
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static State state = PLAYING;
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static int board[PCOLS][PROWS]; // 0 empty, else type+1
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static int curType = 0, curRot = 0, curX = 3, curY = 0;
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static int nextType = 0;
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static int score = 0, best = 0, lines = 0, level = 1;
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static int speed = 600; // ms per gravity step (derived from pps below)
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static int pps = 23; // base speed px/sec; +1 px/sec per 10 lines cleared
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static unsigned long nextTick = 0;
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static bool running = true;
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static void piece_cells(int type, int rot, int out[4][2]) {
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int r = ((rot % 4) + 4) % 4;
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for (int i = 0; i < 4; i++) {
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out[i][0] = SHAPES[type][r][i][0];
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out[i][1] = SHAPES[type][r][i][1];
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}
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}
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static bool collide(int px, int py, int cells[4][2]) {
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for (int i = 0; i < 4; i++) {
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int cx = px + cells[i][0];
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int cy = py + cells[i][1];
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if (cx < 0 || cx >= PCOLS || cy >= PROWS) return true;
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if (cy >= 0 && board[cx][cy]) return true;
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}
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return false;
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}
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static unsigned long now_ms() {
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struct timeval tv;
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gettimeofday(&tv, nullptr);
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return (unsigned long)(tv.tv_sec * 1000 + tv.tv_usec / 1000);
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}
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// Derive the gravity delay (ms) from the target pixels/second. A piece drops
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// one cell (CELL pixels) per gravity step, so step time = CELL / pps.
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static void update_speed() {
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pps = 23 + lines / 10; // +1 px/sec per 10 cleared lines (progressive difficulty)
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int ms = (CELL * 1000) / pps;
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if (ms < 40) ms = 40; // floor on gravity so it stays playable
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speed = ms;
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}
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static void spawn() {
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curType = nextType;
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nextType = rand() % 7;
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curRot = 0;
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curX = 3;
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curY = 0;
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int cells[4][2];
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piece_cells(curType, curRot, cells);
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if (collide(curX, curY, cells)) {
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state = GAMEOVER;
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if (score > best) best = score;
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}
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nextTick = now_ms() + speed;
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}
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static void lock_piece() {
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int cells[4][2];
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piece_cells(curType, curRot, cells);
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for (int i = 0; i < 4; i++) {
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int cx = curX + cells[i][0];
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int cy = curY + cells[i][1];
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if (cy < 0) { state = GAMEOVER; if (score > best) best = score; return; }
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board[cx][cy] = curType + 1;
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}
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// clear full lines
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int cleared = 0;
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for (int y = PROWS - 1; y >= 0; y--) {
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bool full = true;
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for (int x = 0; x < PCOLS; x++) if (!board[x][y]) { full = false; break; }
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if (full) {
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cleared++;
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for (int yy = y; yy > 0; yy--)
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for (int x = 0; x < PCOLS; x++) board[x][yy] = board[x][yy - 1];
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for (int x = 0; x < PCOLS; x++) board[x][0] = 0;
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y++; // recheck same row
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}
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}
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if (cleared > 0) {
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lines += cleared;
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level = 1 + lines / 10;
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int pts[5] = {0, 100, 300, 500, 800};
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score += pts[cleared] * level;
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if (score > best) best = score;
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update_speed(); // +1 px/sec per 10 cleared lines
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}
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spawn();
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}
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static void step() {
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int cells[4][2];
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piece_cells(curType, curRot, cells);
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if (!collide(curX, curY + 1, cells)) {
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curY++;
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} else {
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lock_piece();
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}
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}
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static void hard_drop() {
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int cells[4][2];
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piece_cells(curType, curRot, cells);
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while (!collide(curX, curY + 1, cells)) curY++;
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score += 2;
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if (score > best) best = score;
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lock_piece();
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}
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static void try_move(int dx) {
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int cells[4][2];
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piece_cells(curType, curRot, cells);
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if (!collide(curX + dx, curY, cells)) curX += dx;
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}
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static void try_rotate() {
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int nr = (curRot + 1) % 4;
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int cells[4][2];
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piece_cells(curType, nr, cells);
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// wall kicks: try in place, then small horizontal shifts
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int kicks[5] = {0, -1, 1, -2, 2};
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for (int k = 0; k < 5; k++) {
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if (!collide(curX + kicks[k], curY, cells)) {
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curX += kicks[k];
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curRot = nr;
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return;
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}
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}
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}
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static void reset_game() {
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for (int x = 0; x < PCOLS; x++) for (int y = 0; y < PROWS; y++) board[x][y] = 0;
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score = 0; lines = 0; level = 1; update_speed();
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nextType = rand() % 7;
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spawn();
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state = PLAYING;
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}
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static void draw_text(int x, int y, int scale, unsigned long col, const char* s) {
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int cx = x;
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XSetForeground(dpy, gc, col);
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for (const char* p = s; *p; p++) {
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const unsigned char* g = glyph(*p);
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for (int r = 0; r < 7; r++) {
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unsigned char row = g[r];
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for (int b = 0; b < 5; b++)
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if (row & (1 << (4 - b)))
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XFillRectangle(dpy, back, gc, cx + b * scale, y + r * scale, scale, scale);
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}
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cx += 6 * scale;
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}
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}
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static void render() {
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int px0 = 8, py0 = 8;
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XSetForeground(dpy, gc, C_BG);
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XFillRectangle(dpy, back, gc, 0, 0, winW, winH);
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// single border framing the whole game (playfield + side panel) at the
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// window edges, so it is visible on all four sides including right/bottom
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XSetForeground(dpy, gc, C_DIM);
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XDrawRectangle(dpy, back, gc, 2, 2, winW - 4, winH - 4);
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// settled blocks
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for (int x = 0; x < PCOLS; x++)
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for (int y = 0; y < PROWS; y++)
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if (board[x][y]) {
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XSetForeground(dpy, gc, C_FG);
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XFillRectangle(dpy, back, gc, px0 + x * CELL, py0 + y * CELL, CELL, CELL);
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}
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// active piece
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if (state == PLAYING) {
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int cells[4][2];
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piece_cells(curType, curRot, cells);
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XSetForeground(dpy, gc, C_HEAD);
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for (int i = 0; i < 4; i++) {
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int cx = curX + cells[i][0];
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int cy = curY + cells[i][1];
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if (cy >= 0)
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XFillRectangle(dpy, back, gc, px0 + cx * CELL, py0 + cy * CELL, CELL, CELL);
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}
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}
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// vertical separator line between the playfield and the side panel
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int sepX = px0 + PCOLS * CELL + 6;
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XSetForeground(dpy, gc, C_FG);
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XDrawLine(dpy, back, gc, sepX, py0, sepX, py0 + PROWS * CELL);
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// side panel
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int sx = px0 + PCOLS * CELL + 12;
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draw_text(sx, py0, 1, C_DIM, "NEXT");
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// framed preview box for the next piece
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int boxY = py0 + 10;
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int boxH = 52;
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XSetForeground(dpy, gc, C_DIM);
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XDrawRectangle(dpy, back, gc, sx - 2, boxY + 1, winW - sx - 3, boxH); // frame 2px left, 1px down, 1px wider (piece unchanged)
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int nc[4][2];
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piece_cells(nextType, 0, nc);
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int minx = 4, miny = 4, maxx = -1, maxy = -1;
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for (int i = 0; i < 4; i++) {
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minx = nc[i][0] < minx ? nc[i][0] : minx;
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miny = nc[i][1] < miny ? miny : miny;
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maxx = nc[i][0] > maxx ? nc[i][0] : maxx;
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maxy = nc[i][1] > maxy ? maxy : maxy;
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}
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int pcell = 11; // larger next-piece preview
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int pcols = maxx - minx + 1;
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int prows = maxy - miny + 1;
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int nx0 = sx + ((winW - sx - 4) - pcols * pcell) / 2;
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int ny0 = boxY + (boxH - prows * pcell) / 2 + 12; // sit lower in the frame
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XSetForeground(dpy, gc, C_HEAD);
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for (int i = 0; i < 4; i++) {
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int cx = nx0 + (nc[i][0] - minx) * pcell;
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int cy = ny0 + (nc[i][1] - miny) * pcell;
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XFillRectangle(dpy, back, gc, cx, cy, pcell, pcell);
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}
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int ty = boxY + boxH + 6;
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char buf[32];
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snprintf(buf, sizeof(buf), "SCORE %d", score); draw_text(sx, ty, 1, C_DIM, buf);
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snprintf(buf, sizeof(buf), "LINES %d", lines); draw_text(sx, ty + 9, 1, C_DIM, buf);
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snprintf(buf, sizeof(buf), "LEVEL %d", level); draw_text(sx, ty + 18, 1, C_DIM, buf);
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if (best > 0) { snprintf(buf, sizeof(buf), "BEST %d", best); draw_text(sx, ty + 27, 1, C_DIM, buf); }
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// concise controls in the free space below the stats
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int ky = ty + 27 + 12;
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draw_text(sx, ky, 1, C_DIM, "KEYS");
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draw_text(sx, ky + 9, 1, C_DIM, "4/6 MOVE");
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draw_text(sx, ky + 18, 1, C_DIM, "2 ROTATE");
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draw_text(sx, ky + 27, 1, C_DIM, "8 SOFT");
|
|
draw_text(sx, ky + 36, 1, C_DIM, "0 DROP");
|
|
draw_text(sx, ky + 45, 1, C_DIM, "# PAUSE");
|
|
draw_text(sx, ky + 54, 1, C_DIM, "5 OK");
|
|
|
|
if (state == PAUSED || state == GAMEOVER) {
|
|
XSetForeground(dpy, gc, C_BG);
|
|
XFillRectangle(dpy, back, gc, 0, 0, winW, winH);
|
|
}
|
|
if (state == PAUSED) {
|
|
draw_text(winW / 2 - 5 * 6, winH / 2 - 7, 2, C_FG, "PAUSE");
|
|
draw_text(winW / 2 - 4 * 6, winH / 2 + 10, 1, C_DIM, "5 RESUME");
|
|
} else if (state == GAMEOVER) {
|
|
draw_text(winW / 2 - 9 * 6, winH / 2 - 14, 2, C_FG, "GAME OVER");
|
|
snprintf(buf, sizeof(buf), "SCORE %d", score); draw_text(winW / 2 - 5 * 6, winH / 2 + 4, 1, C_DIM, buf);
|
|
draw_text(winW / 2 - 5 * 6, winH / 2 + 13, 1, C_DIM, "5 NEW GAME");
|
|
}
|
|
|
|
XCopyArea(dpy, back, win, gc, 0, 0, winW, winH, 0, 0);
|
|
XFlush(dpy);
|
|
}
|
|
|
|
static void setup_window() {
|
|
dpy = XOpenDisplay(nullptr);
|
|
if (!dpy) { fprintf(stderr, "tetris: cannot open display\n"); exit(1); }
|
|
screen = DefaultScreen(dpy);
|
|
int sw = DisplayWidth(dpy, screen);
|
|
int scrH = DisplayHeight(dpy, screen);
|
|
// dwm draws a `borderpx` border around every client (src/sxmo-dwm/config.h).
|
|
// Size/position the window so that, once dwm adds its border back on each
|
|
// side, the framed window exactly meets the screen edges and the native
|
|
// border stays fully visible instead of being clipped off the right/bottom.
|
|
int bw = 1; // must match dwm borderpx
|
|
winW = sw - 3 * bw;
|
|
winH = (scrH - TOPBAR) - 3 * bw; // room for the status bar + border
|
|
if (winW < 96) winW = 96;
|
|
if (winH < 96) winH = 96;
|
|
win = XCreateWindow(dpy, RootWindow(dpy, screen), bw, TOPBAR + bw, winW, winH, 0,
|
|
CopyFromParent, InputOutput, CopyFromParent, 0, nullptr);
|
|
XStoreName(dpy, win, "Tetris");
|
|
XClassHint* ch = XAllocClassHint();
|
|
if (ch) { ch->res_name = (char*)"tetris"; ch->res_class = (char*)"tetris"; XSetClassHint(dpy, win, ch); XFree(ch); }
|
|
|
|
Atom wtype = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
|
|
Atom dialog = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
|
|
XChangeProperty(dpy, win, wtype, XA_ATOM, 32, PropModeReplace, (unsigned char*)&dialog, 1);
|
|
|
|
XSizeHints sh;
|
|
sh.flags = PMinSize | PMaxSize | PSize;
|
|
sh.min_width = sh.max_width = winW;
|
|
sh.min_height = sh.max_height = winH;
|
|
XSetWMNormalHints(dpy, win, &sh);
|
|
|
|
Atom wm_del = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
|
|
XSetWMProtocols(dpy, win, &wm_del, 1);
|
|
|
|
gc = XCreateGC(dpy, win, 0, nullptr);
|
|
back = XCreatePixmap(dpy, win, winW, winH, DefaultDepth(dpy, screen));
|
|
|
|
C_BG = BlackPixel(dpy, screen);
|
|
C_FG = 0x33ff33;
|
|
C_HEAD = 0x99ff99;
|
|
C_FOOD = 0x66ff66;
|
|
C_DIM = 0x2f9f2f;
|
|
|
|
XSelectInput(dpy, win, KeyPressMask | StructureNotifyMask | ExposureMask);
|
|
XMapWindow(dpy, win);
|
|
}
|
|
|
|
static void handle_key(KeySym ks) {
|
|
switch (ks) {
|
|
case XK_Left: case XK_a: case XK_KP_Left: case XK_4:
|
|
if (state == PLAYING) { try_move(-1); }
|
|
break;
|
|
case XK_Right: case XK_d: case XK_KP_Right: case XK_6:
|
|
if (state == PLAYING) { try_move(1); }
|
|
break;
|
|
case XK_Up: case XK_w: case XK_KP_Up: case XK_2:
|
|
if (state == PLAYING) { try_rotate(); }
|
|
break;
|
|
case XK_Down: case XK_s: case XK_KP_Down: case XK_8: case XK_x:
|
|
if (state == PLAYING) {
|
|
int cells[4][2];
|
|
piece_cells(curType, curRot, cells);
|
|
if (!collide(curX, curY + 1, cells)) {
|
|
curY++;
|
|
} else {
|
|
lock_piece();
|
|
}
|
|
}
|
|
break;
|
|
case XK_space: case XK_0:
|
|
if (state == PLAYING) { hard_drop(); }
|
|
break;
|
|
case XK_p: case XK_3: case XK_numbersign: case XK_asterisk:
|
|
if (state == PLAYING) {
|
|
state = PAUSED;
|
|
} else if (state == PAUSED) {
|
|
state = PLAYING; nextTick = now_ms() + speed;
|
|
}
|
|
break;
|
|
case XK_5: case XK_Return: case XK_KP_Enter:
|
|
if (state == PLAYING) {
|
|
hard_drop();
|
|
} else if (state == PAUSED) {
|
|
state = PLAYING; nextTick = now_ms() + speed;
|
|
} else if (state == GAMEOVER) {
|
|
reset_game();
|
|
}
|
|
break;
|
|
case XK_Escape: case XK_BackSpace: case XK_Delete: case XK_End: case XK_Menu:
|
|
running = false; break;
|
|
default:
|
|
if (state == GAMEOVER) { reset_game(); }
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void handle_event(XEvent& e) {
|
|
if (e.type == ClientMessage) {
|
|
Atom wm_del = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
|
|
if ((Atom)e.xclient.data.l[0] == wm_del) running = false;
|
|
} else if (e.type == ConfigureNotify) {
|
|
winW = e.xconfigure.width; winH = e.xconfigure.height;
|
|
} else if (e.type == Expose) {
|
|
render();
|
|
} else if (e.type == KeyPress) {
|
|
char buf[8];
|
|
KeySym ks = 0;
|
|
XLookupString(&e.xkey, buf, sizeof(buf), &ks, nullptr);
|
|
if (ks == NoSymbol) ks = XLookupKeysym(&e.xkey, 0);
|
|
if (ks == XK_q) { running = false; return; }
|
|
handle_key(ks);
|
|
}
|
|
}
|
|
|
|
int main() {
|
|
srand((unsigned)time(nullptr) ^ (unsigned)getpid());
|
|
setup_window();
|
|
reset_game();
|
|
render();
|
|
|
|
int xfd = ConnectionNumber(dpy);
|
|
while (running) {
|
|
long until = (long)nextTick - (long)now_ms();
|
|
if (until < 0) until = 0;
|
|
struct timeval tv;
|
|
tv.tv_sec = until / 1000;
|
|
tv.tv_usec = (until % 1000) * 1000;
|
|
fd_set fds;
|
|
FD_ZERO(&fds);
|
|
FD_SET(xfd, &fds);
|
|
int r = select(xfd + 1, &fds, nullptr, nullptr, &tv);
|
|
bool dirty = false;
|
|
if (r > 0) {
|
|
XEvent e;
|
|
while (XPending(dpy)) {
|
|
XNextEvent(dpy, &e);
|
|
handle_event(e);
|
|
if (!running) break;
|
|
}
|
|
if (!running) break;
|
|
dirty = true;
|
|
}
|
|
if (running && now_ms() >= nextTick) {
|
|
if (state == PLAYING) step();
|
|
if (state == PLAYING) nextTick = now_ms() + speed;
|
|
else nextTick = now_ms() + 80;
|
|
dirty = true;
|
|
}
|
|
if (dirty) render();
|
|
}
|
|
|
|
XFreeGC(dpy, gc);
|
|
XFreePixmap(dpy, back);
|
|
XDestroyWindow(dpy, win);
|
|
XCloseDisplay(dpy);
|
|
return 0;
|
|
}
|