bool collide(tetromino te, int new_rot, int new_x, int new_y)
{
bool res = false;
int row = 0;
int col = 0;
int b_i = 0;
tetromino_type type = this.tetrominoes[te.type];
uint rot = type.rot[new_rot];
for (uint b = 0x8000; b > 0; b = b >> 1, ++b_i)
{
int index = (int)((new_x + col) + ((new_y + row)) * COL_COUNT);
bool collide = false;
if (index < (this.gr.gc.Length - 1) && index >= 0)
{
grid_case gc = this.gr.gc[index];
collide = (gc.color != 0xFFFFFFFF) && (!gc.is_cur);
}
bool border = ((new_y + row) < 0) || ((new_x + col) < 0) || ((new_x + col) >= COL_COUNT);
if (((rot & b) > 0) && (border || collide))
{
res = true;
break;
}
if (++col == 4)
{
++row;
col = 0;
}
}
return(res);
}
void rotate(tetromino te, int new_rot)
{
int row = 0;
int col = 0;
tetromino_type type = this.tetrominoes[te.type];
uint rot = type.rot[te.rotation];
uint desired_rot = type.rot[new_rot];
for (uint b = 0x8000; b > 0; b = b >> 1)
{
int index = (int)((te.pos_x + col) + ((te.pos_y + row) * COL_COUNT));
if (index >= 0 && index < this.gr.gc.Length - 1)
{
if ((rot & b) > 0)
{
this.gr.gc[index].color = 0xFFFFFFFF;
this.gr.gc[index].is_cur = false;
}
if ((desired_rot & b) > 0)
{
this.gr.gc[index].color = type.color;
this.gr.gc[index].is_cur = true;
}
}
if (++col == 4)
{
++row;
col = 0;
}
}
}
void move(tetromino te, int new_x, int new_y)
{
int row = 0;
int col = 0;
tetromino_type type = this.tetrominoes[te.type];
for (uint b = 0x8000; b > 0; b = b >> 1)
{
if ((type.rot[te.rotation] & b) > 0)
{
int old_index = (int)((te.pos_x + col) + ((te.pos_y + row) * COL_COUNT));
int new_index = (int)((new_x + col) + ((new_y + row) * COL_COUNT));
if (old_index >= 0 && old_index < this.gr.gc.Length - 1)
{
this.gr.gc[old_index].color = 0xFFFFFFFF;
this.gr.gc[old_index].is_cur = false;
}
if (new_index >= 0 && new_index < this.gr.gc.Length - 1)
{
this.gr.gc[new_index].color = type.color;
this.gr.gc[new_index].is_cur = true;
}
}
if (++col == 4)
{
++row;
col = 0;
}
}
}
tetromino next_tetromino()
{
for (int i = 0; i < this.gr.gc.Length; ++i)
{
this.gr.gc[i].is_cur = false;
}
tetromino res;
res.pos_x = 3;
res.pos_y = (int)ROW_COUNT - 2;
res.rotation = 0;
res.type = this.next_type;
this.next_type = Random.Range(0, 7);
int row = 0;
for (int y = 0; y < 4; ++y)
{
for (int x = 0; x < 4; ++x)
{
int index = (x + row) * 4;
int mask = 0x8000 >> (x + row);
tetromino_type type = this.tetrominoes[this.next_type];
Color32 color = ((type.rot[0] & mask) > 0) ? argb_to_unity_color32(type.color) : this.next_base_color;
this.next_t_mesh.colors[index + 0] = color;
this.next_t_mesh.colors[index + 1] = color;
this.next_t_mesh.colors[index + 2] = color;
this.next_t_mesh.colors[index + 3] = color;
}
row += 4;
}
send_tetris_mesh_to_mesh(this.next_t_mesh, this.next_mesh);
move(res, res.pos_x, res.pos_y);
return(res);
}