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101 lines
1.8 KiB
C
101 lines
1.8 KiB
C
#include "buttons.h"
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#include "dogs.h"
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#include "hal.h"
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#include <stdint.h>
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static const unsigned char bird[] = {
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8, 8,
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0b00111100,
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0b01100110,
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0b01000010,
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0b01111110,
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0b01100110,
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0b01000010,
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0b11000000,
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0b11000000,
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};
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static int score;
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static int t1x, t1o;
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static int t2x, t2o;
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static int py;
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static int vy;
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static int counter;
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static uint32_t next = 31415926;
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int rand()
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{
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uint32_t tr = RTC->TR;
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uint32_t dr = RTC->DR;
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next = next * (0x197244 + dr) + tr;
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return (unsigned int)(next / 65536) % 32768;
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}
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#define NEW_BAR() (rand() % 50 + 5)
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void flapbird_init()
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{
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score = 0;
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t1x = DISP_WIDTH / 2, t1o = NEW_BAR();
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t2x = DISP_WIDTH, t2o = NEW_BAR();
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py = DISP_HEIGHT / 2 - 4;
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vy = 0;
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counter = 0;
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}
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int flapbird_loop()
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{
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// Player logic
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if (py > 0) {
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py += vy;
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if (vy > -3)
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vy--;
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} else {
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if (py < 0)
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py = 0;
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if (score > 0)
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score = 0;
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}
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if (button_state & BUTTON_2) {
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vy = 5;
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if (py <= 0)
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py = 1;
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}
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// Rendering
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dogs_clear();
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draw_rect(t1x, 0, 4, t1o - 10);
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draw_rect(t1x, t1o + 10, 4, DISP_HEIGHT - t1o + 10);
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draw_rect(t2x, 0, 4, t2o - 10);
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draw_rect(t2x, t2o + 10, 4, DISP_HEIGHT - t2o + 10);
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draw_bitmap(4, py, bird);
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draw_number(DISP_WIDTH - 25, DISP_HEIGHT - 8, score);
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dogs_flush();
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// Game logic
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if (t1x == 4)
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score = (py + 2 > t1o - 10 && py + 6 < t1o + 10) ? score + 1 : 0;
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if (t2x == 4)
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score = (py + 2 > t2o - 10 && py + 6 < t2o + 10) ? score + 1 : 0;
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t1x -= 2;
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if (t1x <= -5) {
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t1x = DISP_WIDTH;
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t1o = NEW_BAR();
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}
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t2x -= 2;
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if (t2x <= -5) {
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t2x = DISP_WIDTH;
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t2o = NEW_BAR();
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}
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return 100;
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}
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