/*広告*/

/*ブロックパズルの作り方　中間ソース２*/
/*目次へ戻る*/
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

#define BLOCK_HEIGHT 4
#define BLOCK_WIDTH 4

#define FIELD_HEIGHT 23
#define FIELD_WIDTH 18

void my_init_var(void);
void my_make_block(void);
void my_make_field(void);
void my_draw_field(void);
void my_clear_field(void);
void my_fall_block(void);

int block[BLOCK_HEIGHT][BLOCK_WIDTH];
int stage[FIELD_HEIGHT][FIELD_WIDTH];
int field[FIELD_HEIGHT][FIELD_WIDTH];

int blocks[BLOCK_HEIGHT][BLOCK_WIDTH] = {
	{0,0,0,0},
	{0,1,1,0},
	{0,1,1,0},
	{0,0,0,0}
};

int block_x;
int block_y;

int main(){
	int stop = 0;

	my_init_var();

	while(1){
		my_clear_field();
		my_make_block();
		my_make_field();
		my_draw_field();
		my_fall_block();

		stop = _getch();

		if(block_y > 17)break;
	}
		
	return 0;
}

void my_init_var(){
	int i,j;

	for(i=0;i<FIELD_HEIGHT;i++){
		for(j=0;j<FIELD_WIDTH;j++){
			stage[i][0] = 9;
			stage[i][1] = 9;
			stage[i][2] = 9;
			stage[20][j] = 9;
			stage[21][j] = 9;
			stage[22][j] = 9;
			stage[i][15] = 9;
			stage[i][16] = 9;
			stage[i][17] = 9;		
		}
	}

	block_x = 7;
	block_y = 0;
}

void my_make_block(){
	int x,y;

	for(y=0;y<BLOCK_HEIGHT;y++){
		for(x=0;x<BLOCK_WIDTH;x++){
			block[y][x] = blocks[y][x];
		}
	}
}

void my_make_field(){
	int i,j,x,y;

	for(i=0;i<FIELD_HEIGHT;i++){
		for(j=0;j<FIELD_WIDTH;j++){
			field[i][j] = stage[i][j];	
		}
	}

	for(y=0;y<BLOCK_HEIGHT;y++){
		for(x=0;x<BLOCK_WIDTH;x++){
			field[block_y + y][block_x + x] += block[y][x];
		}
	}	
}

void my_draw_field(){
	int i,j;

	system("cls");

	for(i=0;i<FIELD_HEIGHT - 2;i++){
		for(j=2;j<FIELD_WIDTH - 2;j++){
			if(field[i][j] == 9)printf("■");
			else if(field[i][j] == 1)printf("□");
			else printf("　");
		}
		printf("\n");
	}
}

void my_clear_field(){
	int i,j;

	for(i=0;i<FIELD_HEIGHT;i++){
		for(j=0;j<FIELD_WIDTH;j++){
			field[i][j] = 0;
		}
	}
}

void my_fall_block(){
	block_y++;
}
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