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nick_matrix: show/hide nickname in center

This commit is contained in:
Florian Richter 2011-08-12 15:07:56 +02:00
parent 198d91a86e
commit ff98c7de21
1 changed files with 57 additions and 9 deletions
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62
firmware/l0dable/nick_matrix.c
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@ -1,13 +1,13 @@
#include <sysinit.h>
#include "basic/basic.h"
#include "basic/config.h"
#include "lcd/render.h"
#include "usetable.h"
#define SCREEN_WIDTH 12
#define SCREEN_WIDTH 13
#define SCREEN_HEIGHT 8
#define INVALID_POS 127
#define FONT_WIDTH 7
#define FONT_HEIGHT 8
@ -16,47 +16,95 @@
#define MAX_LINE_LENGTH 6
#define TICKS_SHOW_NICKNAME 100
#define TICKS_HIDE_NICKNAME 50
#define NICKNAME_ACTION_SHOW 1
#define NICKNAME_ACTION_HIDE 2
void ram(void){
lcdClear();
// nickname helper variables
int nickname_len = strlen(GLOBAL(nickname));
int nickname_posx = (SCREEN_WIDTH - nickname_len) / 2;
int nickname_posy = SCREEN_HEIGHT / 2;
// state variables for show/hide effect
int ticks_until_next_nickname_action = TICKS_SHOW_NICKNAME;
int nickname_action = NICKNAME_ACTION_SHOW;
struct matrix_line {
int head_x, head_y;
int cur_length;
int length;
} matrix_lines[MATRIX_LINES_LENGTH];
// initialize matrix_lines
for (int i = 0; i < MATRIX_LINES_LENGTH; i++) {
matrix_lines[i].cur_length = -1;
}
// main loop
while (1) {
// for every matrix line
for(int i = 0; i<MATRIX_LINES_LENGTH; i++) {
struct matrix_line *ml = matrix_lines + i;
// new tail
// create new tail (old tail vanished)
if (ml->cur_length == -1) {
ml->head_x = getRandom() % SCREEN_WIDTH;
ml->head_y = getRandom() % SCREEN_HEIGHT - 1;
ml->length = getRandom() % MAX_LINE_LENGTH + 3;
ml->cur_length = 0;
}
// new char
// set new char
if (ml->head_y < SCREEN_HEIGHT-1) {
ml->head_y++;
int chr = getRandom() % 95 + 33;
char chr;
int chrpos = ml->head_x - nickname_posx;
if (nickname_action == NICKNAME_ACTION_SHOW
&& ml->head_y == nickname_posy
&& chrpos >= 0 && chrpos < nickname_len) {
// show the nickname
chr = GLOBAL(nickname)[chrpos];
} else {
chr = getRandom() % 95 + 33;
}
DoChar(ml->head_x * FONT_WIDTH, ml->head_y * FONT_HEIGHT, chr);
ml->cur_length++;
}
// remove chars (when length or bottom is reached)
// remove char (when length or bottom is reached)
if (ml->cur_length > ml->length || ml->head_y >= SCREEN_HEIGHT-1) {
int chrpos = ml->head_x - nickname_posx;
if ( ! (nickname_action == NICKNAME_ACTION_SHOW
&& (ml->head_y - ml->cur_length) == nickname_posy
&& chrpos >= 0 && chrpos < nickname_len
)) {
// only delete, if it's not the nickname
DoChar(ml->head_x * FONT_WIDTH, (ml->head_y - ml->cur_length) * FONT_HEIGHT, ' ');
}
ml->cur_length--;
}
}
lcdDisplay();
// Exit on enter+left
// show and hide nickname
ticks_until_next_nickname_action--;
if (ticks_until_next_nickname_action <= 0) {
switch (nickname_action) {
case NICKNAME_ACTION_SHOW:
nickname_action = NICKNAME_ACTION_HIDE;
ticks_until_next_nickname_action = TICKS_HIDE_NICKNAME;
break;
case NICKNAME_ACTION_HIDE:
nickname_action = NICKNAME_ACTION_SHOW;
ticks_until_next_nickname_action = TICKS_SHOW_NICKNAME;
break;
}
}
// Exit on any key
int key = getInputRaw();
if(key!= BTN_NONE)
return;
// sleep and process queue (e. g. meshnetwork)
delayms_queue_plus(90,0);
};
};