squash
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Chu'vok
50
example/ask.c
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50
example/ask.c
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// Display a yes/no dialog with a message. Returns with 0 when yes was clicked.
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// syntax: ./ask "message"
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#include "../tim.h"
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// colors
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#define CTXT 0xf // text black, white
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#define CFR 0x8 // frame black, gray
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#define CYES 0xa000f // yes green, black, white
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#define CNO 0x9000f // no red, black white
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int main(int argc, char** argv) {
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if (argc < 2 || strcmp(argv[1], "-h") == 0) {
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printf("syntax: %s message\n", argv[0]);
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exit(1);
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}
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// get text properties
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struct text msg = scan_str(argv[1]);
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while (tim_run(0)) {
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// calculate size of message box
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int w = MAX(msg.width + 4, 24);
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int h = MAX(msg.lines + 6, 7);
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scope (A, A, w, h) {
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// draw frame around entire scope
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frame(0, 0, ~0, ~0, CFR);
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// draw message
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label(argv[1], A, 1, msg.width, msg.lines, CTXT);
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// draw 'yes' button, return 0 when clicked
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if (button("Yes", 2, ~1, A, A, CYES)) {
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exit(0);
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}
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// draw 'no' button, return 1 when clicked
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if (button("No ", ~2, ~1, A, A, CNO)) {
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exit(1);
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}
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// return with 1 when q or esc is pressed
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if (is_key_press('q') || is_key_press(ESCAPE_KEY)) {
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exit(1);
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}
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}
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}
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}
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14
example/hello.c
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14
example/hello.c
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#include "../tim.h" // one header, no lib
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int main(void) { //
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while (tim_run(0)) { // event loop
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scope (A, A, 24, 8) { // centered scope
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uint64_t c = 0x0a060f; // three colors
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frame(0, 0, ~0, ~0, c); // draw frame for scope
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label("Greetings!", A, 2, A, A, c); // label in top center
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if (button("OK", A, ~1, 8, A, c)) // button in bottom center
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return 0; // exit on button click
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if (is_key_press('q')) //
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return 0; // exit on 'q' press
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} //
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} //
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} // automatic cleanup
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130
example/snek.c
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130
example/snek.c
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// Simple game of snake to show how to do animation and draw cells.
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#include "../tim.h"
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#define FG 0x10
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#define BG 0xdd
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#define BTN (FG << 16 | BG << 8 | FG)
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#define NEW 0
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#define RUN 1
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#define PAUSE 2
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#define OVER 3
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typedef union {
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struct {
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int32_t x;
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int32_t y;
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};
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int64_t xy;
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} point;
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static struct {
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int state; // game state (NEW RUN PAUSE OVER)
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int64_t tick; // updates every 10 ms
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int len; // snake length
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point body[200]; // snake body
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point food; // food position
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point look; // active direction
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} snek;
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static void start(void) {
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memset(snek.body, -1, sizeof(snek.body));
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snek.len = 2;
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snek.body[0] = (point){{1, tim.h / 2}};
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snek.food = (point){{tim.w / 8, tim.h / 2}};
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snek.look = (point){{1, 0}};
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}
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static void game(void) {
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// update game state about every 10 ms
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int64_t tick = time_us() / 100000;
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if (snek.tick != tick) {
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snek.tick = tick;
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// move one unit
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memmove(snek.body + 1, snek.body, sizeof(snek.body) - sizeof(point));
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snek.body[0].x = snek.body[1].x + snek.look.x;
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snek.body[0].y = snek.body[1].y + snek.look.y;
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// self crash
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bool crash = false;
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for (int i = 1; i < snek.len; i++) {
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crash |= snek.body[0].xy == snek.body[i].xy;
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}
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// border crash
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crash |= snek.body[0].x < 0 || snek.body[0].x >= tim.w / 2 ||
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snek.body[0].y < 0 || snek.body[0].y >= tim.h;
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snek.state = crash ? OVER : snek.state;
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// food
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if (snek.food.xy == snek.body[0].xy) {
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snek.len = MIN(snek.len + 2, ARRAY_SIZE(snek.body));
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snek.food.x = rand() % (tim.w / 2 - 2) + 1;
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snek.food.y = rand() % (tim.h - 2) + 1;
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}
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}
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// draw
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if (tim.event.type == DRAW_EVENT) {
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// food
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draw_chr(cell(" ", 0, 0xc5), snek.food.x * 2 + 0, snek.food.y);
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draw_chr(cell(" ", 0, 0xc5), snek.food.x * 2 + 1, snek.food.y);
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// snek
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struct cell s = cell(" ", 0, 0);
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for (int i = 0; i < snek.len; i++) {
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s.bg = (i / 2) % 2 ? 0xe3 : 0xea;
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int x = snek.body[i].x * 2;
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int y = snek.body[i].y;
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draw_chr(s, x + 0, y);
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draw_chr(s, x + 1, y);
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}
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}
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// user input
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if (tim.event.type == KEY_EVENT) {
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int key = tim.event.key;
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if ((key == RIGHT_KEY || key == 'd') && snek.look.x != -1) {
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snek.look = (point){{1, 0}};
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} else if ((key == LEFT_KEY || key == 'a') && snek.look.x != 1) {
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snek.look = (point){{-1, 0}};
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} else if ((key == DOWN_KEY || key == 's') && snek.look.y != -1) {
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snek.look = (point){{0, 1}};
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} else if ((key == UP_KEY || key == 'w') && snek.look.y != 1) {
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snek.look = (point){{0, -1}};
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}
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}
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}
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static void menu(void) {
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scope(A, A, 20, 13) {
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char* lbl = snek.state == OVER ? "GAME OVER" : "SNEK - THE GAME";
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char* btn = snek.state == PAUSE ? "Resume" : "Play";
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label(lbl, A, 0, A, A, BTN);
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if (button(btn, A, 2, 20, 5, BTN) || is_key_press(ENTER_KEY)) {
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if (snek.state != PAUSE) {
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start();
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}
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snek.state = RUN;
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}
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if (button("Exit", A, 8, 20, 5, BTN) || is_key_press(ESCAPE_KEY)) {
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exit(0);
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}
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}
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}
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int main(void) {
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// draw every 10 ms
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while (tim_run(10)) {
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struct cell bg = cell(" ", 0, BG);
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draw_lot(bg, 0, 0, tim.w, tim.h);
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if (snek.state == RUN) {
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game();
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} else {
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menu();
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}
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if (is_key_press(ESCAPE_KEY)) {
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snek.state = PAUSE;
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}
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}
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}
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