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Speicherschwein, Speicherschwein... wer kann das was ein Speicherschwein kann?

This commit is contained in:
Christian Kroll 2010-12-20 22:52:39 +00:00
parent 0c65727a52
commit 108cf1321d
3 changed files with 16 additions and 6 deletions
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9
games/breakout/breakout.c
View File

@ -39,6 +39,13 @@ void borg_breakout_game()
void borg_breakout(uint8_t demomode) void borg_breakout(uint8_t demomode)
{ {
// save pointer address just in case that the breakout demo was previously
// running so it can reentered
char (*old_playfield)[NUM_COLS][NUM_ROWS] = playfield;
// new playing field
char my_playfield[NUM_COLS][NUM_ROWS];
playfield = &my_playfield;
uint8_t ignorescore_buffer = ignorescore; uint8_t ignorescore_buffer = ignorescore;
uint16_t cycles = DEMO_CYCLES; uint16_t cycles = DEMO_CYCLES;
uint8_t level; uint8_t level;
@ -99,4 +106,6 @@ void borg_breakout(uint8_t demomode)
} }
ignorescore = ignorescore_buffer; ignorescore = ignorescore_buffer;
// restore saved pointer
playfield = old_playfield;
} }

12
games/breakout/playfield.c
View File

@ -17,7 +17,7 @@
*/ */
#include "playfield.h" #include "playfield.h"
static enum game_field_t playfield[NUM_COLS][NUM_ROWS]; char (*playfield)[NUM_COLS][NUM_ROWS];
void playfield_set (uint8_t in_x, uint8_t in_y, enum game_field_t in_field) void playfield_set (uint8_t in_x, uint8_t in_y, enum game_field_t in_field)
{ {
@ -25,15 +25,15 @@ void playfield_set (uint8_t in_x, uint8_t in_y, enum game_field_t in_field)
{ {
return; return;
} }
playfield[in_x][in_y] = in_field; (*playfield)[in_x][in_y] = in_field;
} }
void brick_damage (uint8_t in_x, uint8_t in_y) void brick_damage (uint8_t in_x, uint8_t in_y)
{ {
if (playfield[in_x][in_y] >= bs || playfield[in_x][in_y] == 0) if ((*playfield)[in_x][in_y] >= bs || (*playfield)[in_x][in_y] == 0)
return; return;
playfield[in_x][in_y] -= 1; (*playfield)[in_x][in_y] -= 1;
score_add (1); score_add (1);
} }
@ -53,7 +53,7 @@ uint8_t check_bounce (int8_t in_x, int8_t in_y)
} }
/* collisions with real objects */ /* collisions with real objects */
switch (playfield[abs(in_x)][abs(in_y)]) switch ((*playfield)[abs(in_x)][abs(in_y)])
{ {
case b2: case b2:
case b3: case b3:
@ -119,7 +119,7 @@ void playfield_draw ()
{ {
for (y=0;y<NUM_COLS;y++) for (y=0;y<NUM_COLS;y++)
{ {
draw_single_field (x,y, playfield[x][y]); draw_single_field (x,y, (*playfield)[x][y]);
} }
} }
} }

1
games/breakout/playfield.h
View File

@ -37,6 +37,7 @@ enum game_field_t
rb /* rebound */ rb /* rebound */
}; };
extern char (*playfield)[NUM_COLS][NUM_ROWS];
/* @description draw the current field /* @description draw the current field
*/ */