test timing and input handling

[ansitris] / src / game.c

diff --git a/src/game.c b/src/game.c
index f1622aa..e8b47f3 100644 (file)
--- a/src/game.c
+++ b/src/game.c
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <string.h>
 #include <inttypes.h>
 #include "game.h"
 #include "pieces.h"
@@ -46,7 +47,10 @@ int init_game(void)
        int i, j;
        uint16_t *row = scr;
 
+       tick_interval = 1000;
+
        ansi_clearscr();
+       ansi_cursor(0);
 
        /* fill the screen buffer, and draw */
        for(i=0; i<SCR_ROWS; i++) {
@@ -77,15 +81,55 @@ void cleanup_game(void)
        ansi_reset();
 }
 
-void proc_input(void)
+static int pos[2] = {0, PF_COLS / 2};
+static int next_pos[2] = {0, PF_COLS / 2};
+
+long update(long msec)
 {
-       int c = fgetc(stdin);
+       static long prev_tick;
+       long dt;
+
+       dt = msec - prev_tick;
+
+       /* fall */
+       while(dt >= tick_interval) {
+               next_pos[0] = (pos[0] + 1) % PF_ROWS;
+               dt -= tick_interval;
+               prev_tick = msec;
+       }
 
+       if(memcmp(pos, next_pos, sizeof pos) != 0) {
+               ansi_setcursor(pos[0], (PF_XOFFS + pos[1]) * 2);
+               wrchar(CHAR(' ', BLACK, WHITE));
+
+               memcpy(pos, next_pos, sizeof pos);
+               ansi_setcursor(pos[0], (PF_XOFFS + pos[1]) * 2);
+               wrchar(CHAR(' ', RED, RED));
+
+               fflush(stdout);
+       }
+       return tick_interval - dt;
+}
+
+void game_input(int c)
+{
        switch(c) {
        case 27:
                quit = 1;
                break;
 
+       case 'a':
+               if(pos[1] > 0) {
+                       next_pos[1] = pos[1] - 1;
+               }
+               break;
+
+       case 'd':
+               if(pos[1] < PF_COLS - 1) {
+                       next_pos[1] = pos[1] + 1;
+               }
+               break;
+
        default:
                break;
        }