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105 lines
1.9 KiB
105 lines
1.9 KiB
/** @file scribble1.c
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@author M.P. Hayes
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@date 5 Oct 2010
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*/
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#include "system.h"
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#include "button.h"
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#include "navswitch.h"
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#include "led.h"
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#include "tinygl.h"
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#include "pacer.h"
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#include "../fonts/font5x7_1.h"
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/* Define polling rate in Hz. */
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#define LOOP_RATE 300
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#define SCRIBBLE_SPEED 2
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typedef enum dir dir_t;
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struct pen
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{
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/* Current pos of pen. */
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tinygl_point_t pos;
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/* Current state of pen. */
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bool state;
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};
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typedef struct pen pen_t;
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int main (void)
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{
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pen_t pen;
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system_init ();
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pen.pos.x = TINYGL_WIDTH / 2;
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pen.pos.y = TINYGL_HEIGHT / 2;
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pen.state = 1;
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pacer_init (LOOP_RATE);
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led_init ();
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button_init ();
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navswitch_init ();
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tinygl_init (LOOP_RATE);
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tinygl_draw_point (pen.pos, pen.state);
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led_set (LED1, pen.state);
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/* Paced loop. */
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while (1)
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{
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bool draw = 0;
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/* Wait for next tick. */
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pacer_wait ();
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navswitch_update ();
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button_update ();
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if (navswitch_push_event_p (NAVSWITCH_WEST) && pen.pos.x > 0)
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{
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pen.pos.x--;
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draw = 1;
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}
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if (navswitch_push_event_p (NAVSWITCH_EAST) && pen.pos.x < TINYGL_WIDTH - 1)
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{
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pen.pos.x++;
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draw = 1;
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}
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if (navswitch_push_event_p (NAVSWITCH_SOUTH) && pen.pos.y < TINYGL_HEIGHT - 1)
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{
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pen.pos.y++;
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draw = 1;
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}
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if (navswitch_push_event_p (NAVSWITCH_NORTH) && pen.pos.y > 0)
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{
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pen.pos.y--;
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draw = 1;
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}
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if (navswitch_push_event_p (NAVSWITCH_PUSH)
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|| button_push_event_p (BUTTON1))
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{
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pen.state = !pen.state;
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led_set (LED1, pen.state);
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}
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if (draw)
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tinygl_draw_point (pen.pos, pen.state);
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tinygl_update ();
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}
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return 0;
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}
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