[Resolvido] matrizes duvida

seuqram · June 19, 2012

estou começando meu jogo Earth Dragon e vou meter matrizes que vai ser o mundo (terreno).

eu não sei como vou fazer isso!

tipo matriz de 10,5:

0,0,0,0,2,0,0,0,0,0

0,0,01,1,0,0,0,0,1

0,0,1,1,1,1,0,0,1,1

1,1,1,3,1,1,1,1,1,1

qual é o 0,0 será qual destes?

0,0,0,0,2,0,0,0,0,0

0,0,01,1,0,0,0,0,1

0,0,1,1,1,1,0,0,1,1

1,1,1,3,1,1,1,1,1,1

eu confundime por causa de um jogo que fiz antes e começava onde esta o vermelho '-'

será que criei mal a matriz?

int mapa[100][30]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,0,

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,1,0,0,0,0,0,0,

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,2,1,0,0,0,0,0,0,

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,2,1,0,0,0,0,0,0,

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,1,0,

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,7,1,1,1,0,

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,1,0,

0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,2,0,0,0,0,0,1,0,

0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,

0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,

0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,

0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,

0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,2,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,2,0,0,2,0,

0,0,0,0,0,0,0,0,2,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,2,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,2,0,1,0,0,0,2,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,1,1,1,0,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,2,1,0,0,0,

0,0,0,0,0,0,2,0,7,1,0,0,0,0,0,0,0,0,0,0,0,1,2,0,0,2,1,0,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,2,1,0,2,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,7,1,0,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,1,1,0,0,0,

0,0,0,0,0,0,0,0,2,1,0,0,0,0,0,0,2,1,1,1,0,0,0,0,0,1,2,0,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,1,0,0,0,0,2,1,1,1,2,0,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,2,1,1,1,0,0,0,0,0,0,0,0,0,1,0,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,

0,0,0,0,0,0,2,0,7,1,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,2,1,0,0,0,0,0,0,0,0,0,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,0,2,1,0,0,0,0,0,0,0,0,0,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,1,1,0,0,

0,0,0,0,0,0,0,0,2,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,1,1,0,0,0,0,0,1,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,1,1,1,0,0,1,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,8,1,0,0,1,0,0,

0,0,0,0,0,0,2,0,7,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,2,1,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0,0,1,0,0,0,0,0,2,1,0,2,1,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,2,1,0,0,0,1,0,0,0,0,0,0,1,0,0,1,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,2,1,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,

0,0,0,0,0,0,0,0,2,1,1,1,1,1,0,0,0,1,0,0,0,0,0,0,0,0,7,1,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,1,0,0,0,0,3,1,1,1,1,1,0,0,

0,0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,1,1,0,0,

0,0,0,0,0,0,2,0,7,1,0,0,0,1,0,0,0,0,0,2,0,2,0,2,0,2,0,2,0,0,

0,0,0,0,0,0,0,0,0,1,0,7,2,1,0,0,0,0,0,1,0,2,0,0,0,0,0,0,0,0,

0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,1,0,2,0,0,0,0,0,0,0,0,

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,0,0,

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0,

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,

0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};

minha matriz desse jogo que me confundi!

será que está mal?

onde começa o 0,0?

outra duvida:

int[10][5];

0,0,0,0,2,0,0,0,0,0

0,0,01,1,0,0,0,0,1

0,0,1,1,1,1,0,0,1,1

1,1,1,3,1,1,1,1,1,1

eu penso que 10 é o x ou seja em cada linha quantos elementos há. e o 5 é o y ou seja quantas linhas.

ajudem-me :/

agradecimentos,seuqram.

Edited June 19, 2012 by seuqram

HappyHippyHippo · June 19, 2012

é normal começar no canto superior esquerdo pela simples razão que num array bidemensional podes ter uma linha (ou coluna) toda contigua.

ou então tenta criar uma função que te retorna a posição de memória do elemento na posição (x, y) dessa forma não interessa como tens codificado (seja de cima para baixo, da esquerda para a direita) que acedes sempre à posição correcta

pmg · June 19, 2012

Eu costumo aceder a arrays que reflectem um plano com indices chamados 'row' e 'col'.

O row é o primeiro indice; o col o segundo

for (row = 0; row < 12; row++) {              /* 12 linhas */
   for (col = 0; col < 79; col++) {          /* de 79 colunas cada */
       putchar(array[row][col]);
   }
   putchar('\n');
}

Respondendo a tua pergunta: o [0][0] é o primeiro elemento, o que pintaste a verde.

Flinger · June 19, 2012

Na tua matriz, a posição 0,0 é o primeiro elemento que declaras...

Agora, partindo do princípio que usas OpenGL ou similar, as coordenadas dependem de onde coloques o teu eixo. Tanto podes colocar o eixo em qualquer vértice, como o podes colocar no centro, ou mesmo noutra posição.

De qualquer forma se quiseres usar uma forma matriz[x][y], então o teu eixo é:

------------------------------------------->y

| 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,0,

| 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,

| 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,1,0,0,0,0,0,0,

| 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,2,1,0,0,0,0,0,0,

X | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,2,1,0,0,0,0,0,0,

V 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,