97 lines
3.2 KiB
Java
97 lines
3.2 KiB
Java
package chess.view.DDDrender;
|
|
|
|
import org.joml.Vector3f;
|
|
|
|
public class BoardModelLoader {
|
|
|
|
private static int BOARD_WIDTH = 8;
|
|
private static int BOARD_HEIGHT = 8;
|
|
private static int BOARD_SIZE = BOARD_WIDTH * BOARD_HEIGHT;
|
|
private static int SQUARE_VERTEX_COUNT = 4;
|
|
|
|
private static float[] GetBoardPositions() {
|
|
float[] positions = new float[BOARD_SIZE * SQUARE_VERTEX_COUNT * 3];
|
|
for (int i = 0; i < BOARD_WIDTH; i++) {
|
|
for (int j = 0; j < BOARD_HEIGHT; j++) {
|
|
float x = i / (float) BOARD_WIDTH;
|
|
float dx = (i + 1) / (float) BOARD_WIDTH;
|
|
float z = j / (float) BOARD_HEIGHT;
|
|
float dz = (j + 1) / (float) BOARD_HEIGHT;
|
|
|
|
float trueX = 2 * x - 1;
|
|
float trueZ = 2 * z - 1;
|
|
float trueDX = 2 * dx - 1;
|
|
float trueDZ = 2 * dz - 1;
|
|
|
|
positions[(BOARD_WIDTH * i + j) * SQUARE_VERTEX_COUNT * 3] = trueX;
|
|
positions[(BOARD_WIDTH * i + j) * SQUARE_VERTEX_COUNT * 3 + 1] = 0.0f;
|
|
positions[(BOARD_WIDTH * i + j) * SQUARE_VERTEX_COUNT * 3 + 2] = trueZ;
|
|
|
|
positions[(BOARD_WIDTH * i + j) * SQUARE_VERTEX_COUNT * 3 + 3] = trueDX;
|
|
positions[(BOARD_WIDTH * i + j) * SQUARE_VERTEX_COUNT * 3 + 4] = 0.0f;
|
|
positions[(BOARD_WIDTH * i + j) * SQUARE_VERTEX_COUNT * 3 + 5] = trueZ;
|
|
|
|
positions[(BOARD_WIDTH * i + j) * SQUARE_VERTEX_COUNT * 3 + 6] = trueX;
|
|
positions[(BOARD_WIDTH * i + j) * SQUARE_VERTEX_COUNT * 3 + 7] = 0.0f;
|
|
positions[(BOARD_WIDTH * i + j) * SQUARE_VERTEX_COUNT * 3 + 8] = trueDZ;
|
|
|
|
positions[(BOARD_WIDTH * i + j) * SQUARE_VERTEX_COUNT * 3 + 9] = trueDX;
|
|
positions[(BOARD_WIDTH * i + j) * SQUARE_VERTEX_COUNT * 3 + 10] = 0.0f;
|
|
positions[(BOARD_WIDTH * i + j) * SQUARE_VERTEX_COUNT * 3 + 11] = trueDZ;
|
|
}
|
|
}
|
|
return positions;
|
|
}
|
|
|
|
private static float[] GetBoardColors() {
|
|
float[] colors = new float[BOARD_SIZE * SQUARE_VERTEX_COUNT * 3];
|
|
for (int i = 0; i < BOARD_WIDTH; i++) {
|
|
for (int j = 0; j < BOARD_HEIGHT; j++) {
|
|
Vector3f color;
|
|
if ((i + j) % 2 == 0) {
|
|
color = new Vector3f(1.0f, 1.0f, 1.0f);
|
|
} else {
|
|
color = new Vector3f(0.0f, 0.0f, 0.0f);
|
|
}
|
|
int squareIndex = i * BOARD_WIDTH + j;
|
|
for (int k = 0; k < SQUARE_VERTEX_COUNT; k++) {
|
|
colors[squareIndex * SQUARE_VERTEX_COUNT * 3 + k * 3] = color.x;
|
|
colors[squareIndex * SQUARE_VERTEX_COUNT * 3 + k * 3 + 1] = color.y;
|
|
colors[squareIndex * SQUARE_VERTEX_COUNT * 3 + k * 3 + 2] = color.z;
|
|
}
|
|
}
|
|
}
|
|
return colors;
|
|
}
|
|
|
|
private static int[] GetBoardIndicies() {
|
|
int[] indices = new int[BOARD_SIZE * 6];
|
|
for (int i = 0; i < BOARD_SIZE; i++) {
|
|
indices[i * 6] = i * 4;
|
|
indices[i * 6 + 1] = i * 4 + 2;
|
|
indices[i * 6 + 2] = i * 4 + 1;
|
|
indices[i * 6 + 3] = i * 4 + 1;
|
|
indices[i * 6 + 4] = i * 4 + 2;
|
|
indices[i * 6 + 5] = i * 4 + 3;
|
|
}
|
|
return indices;
|
|
}
|
|
|
|
public static VertexArray GetBoardModel() {
|
|
ElementBuffer eBuffer = new ElementBuffer(GetBoardIndicies());
|
|
VertexArray vao = new VertexArray(eBuffer);
|
|
|
|
VertexBuffer positionBuffer = new VertexBuffer(GetBoardPositions(), 3);
|
|
positionBuffer.AddVertexAttribPointer(0, 3, 0);
|
|
|
|
VertexBuffer colorBuffer = new VertexBuffer(GetBoardColors(), 3);
|
|
colorBuffer.AddVertexAttribPointer(1, 3, 0);
|
|
|
|
vao.Bind();
|
|
vao.BindVertexBuffer(positionBuffer);
|
|
vao.BindVertexBuffer(colorBuffer);
|
|
vao.Unbind();
|
|
return vao;
|
|
}
|
|
}
|