84 lines
1.2 KiB
C
84 lines
1.2 KiB
C
#include "common.h"
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uint8_t brick_damage (uint8_t in_x, uint8_t in_y)
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{
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game_field_t newtype;
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if (playfield[in_x][in_y] > bs || playfield[in_x][in_y] == 0)
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return;
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playfield[in_x][in_y]--;
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score_add (1);
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}
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uint8_t check_bounce (uint8_t in_x, uint8_t in_y)
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{
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/* overflow check */
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if (in_x >= NUM_ROWS)
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return 1;
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if (in_y >= NUM_COLS)
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return 1;
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/* collisions with real objects */
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switch (playfield[in_x][in_y])
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{
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case sp:
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case bl:
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return 0;
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case b2:
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case b3:
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case b1:
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brick_damage (in_x, in_y);
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/* intentional fallthrough */
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case bs:
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return 1;
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/* bouncing on the rebound needs special care */
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case rb:
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return 2;
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}
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}
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/* this is the actual draw function for a single field
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*/
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static inline void draw_single_field (uint8_t in_x, uint8_t in_y, game_field_t in_f)
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{
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switch (in_f)
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{
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case b1:
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setPixel (in_x, in_y, 1);
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return;
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case rb:
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case b2:
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setPixel (in_x, in_y, 2);
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return;
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case b3:
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case bl:
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case bs:
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setPixel (in_x, in_y, 3);
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return;
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default: /* this includes freespace */
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setPixel (in_x, in_y, 0);
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return;
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}
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}
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void playfield_draw ()
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{
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uint8_t x,y;
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for (x=0;x<NUM_ROWS;x++)
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{
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for (y=0;y<NUM_COLS;y++)
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{
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draw_single_field (x,y, playfield[x][y]);
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}
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}
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}
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