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#include <stdlib.h>
#include <string.h>
#include <SFML/Graphics/RectangleShape.h>
#include "vector.h"
#include "field.h"
#include "tet_conf.h"
extern char arrShapeL[4][4];
extern char arrShapeRL[4][4];
extern char arrShapeZ[4][4];
extern char arrShapeS[4][4];
extern char arrShapeB[4][4];
extern char arrShapeI[4][4];
extern char arrShapeT[4][4];
static void rotate_shape_left(struct shape *shape);
static void rotate_shape_right(struct shape *shape);
static int out_of_bounds(struct field *fld, struct shape *active);
void field_init(struct field *fld)
{
fld->c = calloc(fld->bound.y, sizeof(struct cell *));
for (unsigned int j = 0; j < fld->bound.y; j++) {
fld->c[j] = calloc(fld->bound.x, sizeof(struct cell));
for (unsigned int i = 0; i < fld->size.x; i++)
fld->c[j][i].a = 0;
}
fld->shape = calloc(fld->shape_cnt, sizeof(struct shape));
}
void field_clear(struct field *fld)
{
for (unsigned int j = 0; j < fld->bound.y; j++)
for (unsigned int i = 0; i < fld->bound.x; i++) {
fld->c[j][i].a = 0;
fld->c[j][i].color = 0;
}
}
void field_fill_random(struct field *fld)
{
for (unsigned int j = 0; j < fld->size.y; j++)
for (unsigned int i = 0; i < fld->size.x; i++) {
fld->c[j][i].a = 1;
fld->c[j][i].color = rand() % 7 + 1;
}
}
void field_put_shape(struct field *fld, struct shape *active)
{
for (int j = 0; j < 4; j++)
for (int i = 0; i < 4; i++)
if (active->c[j][i]) {
fld->c[j+active->y][i+active->x].a = active->c[j][i];
fld->c[j+active->y][i+active->x].color = active->color;
}
}
int field_shape_out_of_bounds(struct field *fld, struct shape *active)
{
for (int i = 0; i < 4; i++)
for (int j = 0; j < 4; j++)
if (active->c[i][j] && active->y + i >= (int)fld->size.y)
return 1;
return 0;
}
void shape_load(struct shape *shape)
{
shape->color = shape->t;
switch (shape->t) { // Copy cell active/inactive state
case 1 :
memcpy(&shape->c[0][0], &arrShapeL[0][0], sizeof(char)*4*4);
break;
case 2 :
memcpy(&shape->c[0][0], &arrShapeRL[0][0], sizeof(char)*4*4);
break;
case 3 :
memcpy(&shape->c[0][0], &arrShapeZ[0][0], sizeof(char)*4*4);
break;
case 4 :
memcpy(&shape->c[0][0], &arrShapeS[0][0], sizeof(char)*4*4);
break;
case 5 :
memcpy(&shape->c[0][0], &arrShapeB[0][0], sizeof(char)*4*4);
break;
case 6 :
memcpy(&shape->c[0][0], &arrShapeI[0][0], sizeof(char)*4*4);
break;
case 7 :
memcpy(&shape->c[0][0], &arrShapeT[0][0], sizeof(char)*4*4);
break;
}
}
void field_reset_walking_shape(struct field *fld, unsigned int index)
{
struct shape *active = &fld->shape[index];
shape_load(active);
active->x = 3;
if (active->t == 6)
active->y = 19;
else
active->y = 18;
while (field_shape_collision(fld, active))
active->y++;
}
void shape_gen_random(struct shape *shape)
{
shape->t = (rand() % 7) + 1; // Insert new random shape of 7 variants
shape_load(shape);
if (shape->t == 5)
for (int j = 0; j < 3; j++)
for (int i = 0; i < 4; i++)
shape->c[i][j] = shape->c[i][j+1];
}
int field_shape_collision(struct field *fld, struct shape *shape)
{
if (out_of_bounds(fld, shape))
return 1;
for (int i = 0; i < 4; i++)
for (int j = 0; j < 4; j++)
if (shape->c[i][j] && fld->c[i + shape->y][j + shape->x].a)
return 1;
return 0;
}
static int out_of_bounds(struct field *fld, struct shape *active)
{
for (int i = 0; i < 4; i++)
for (int j = 0; j < 4; j++)
if (active->c[i][j])
if (active->x + j >= (int)fld->bound.x || active->x + j < 0
|| active->y + i >= (int)fld->bound.y || active->y + i < 0)
return 1;
return 0;
}
static void rotate_shape_left(struct shape *shape)
{
char arr[4][4];
memcpy(&arr[0][0], &shape->c[0][0], sizeof(char)*4*4);
if (shape->t == 5)
return;
if (shape->t == 6) {
for (int j = 3; j >= 0; j--)
for (int i = 0; i < 4; i++)
shape->c[j][i] = arr[3-i][3-j];
return;
}
for (int j = 3; j > 0; j--)
for (int i = 0; i < 3; i++)
shape->c[j][i] = arr[3-i][j-1];
}
static void rotate_shape_right(struct shape *shape)
{
char arr[4][4];
memcpy(&arr[0][0], &shape->c[0][0], sizeof(char)*4*4);
if (shape->t == 5)
return;
if (shape->t == 6) {
for (int j = 3; j >= 0; j--)
for (int i = 0; i < 4; i++)
shape->c[j][i] = arr[3-i][3-j];
return;
}
for (int j = 3; j > 0; j--)
for (int i = 0; i < 3; i++)
shape->c[j][i] = arr[i+1][3-j];
}
void field_rotate_shape(struct field *fld, unsigned int index)
{
struct shape *shape = &fld->shape[index];
rotate_shape_right(shape);
if (field_shape_collision(fld, shape))
rotate_shape_left(shape);
}
int field_rm_lines(struct field *fld)
{
unsigned int lines = 0;
for (unsigned int j = 0; j < fld->bound.y; j++) {
unsigned int cells = 0;
for (unsigned int i = 0; i < fld->bound.x; i++)
if (fld->c[j][i].a)
++cells;
if (cells == fld->bound.x) {
++lines;
for (unsigned int n = j; n < fld->bound.y - 1; n++)
for (unsigned int m = 0; m < fld->bound.x; m++) {
fld->c[n][m].a = fld->c[n + 1][m].a;
fld->c[n][m].color = fld->c[n + 1][m].color;
}
--j;
}
}
return lines;
}
void field_deinit(struct field *fld) {
for (int j = 0; j < (int)fld->bound.y; j++)
free(fld->c[j]);
free(fld->c);
free(fld->shape);
}
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