thepigeongenerator/tetris_clone
1
0
Fork 0
mirror of https://github.com/thepigeongenerator/tetris_clone.git synced 2025-12-17 05:55:46 +01:00
Code Issues Packages Projects Releases Wiki Activity

implement logic-based function in collision

Browse Source
This commit is contained in:
Quinn
2025-07-03 00:14:51 +02:00
parent 13e21cb79d
commit af43c9162a
1 changed files with 13 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
src/game/tetromino/placing.c
View File

@@ -41,6 +41,7 @@ static void clear_rows(u8* restrict* restrict rows, u16* const score) {
continue; continue;
} }
cache[fillc] = rows[i]; // cache the current row address, since it's going to be overridden cache[fillc] = rows[i]; // cache the current row address, since it's going to be overridden
fillc++; fillc++;
checkc++; checkc++;
@@ -69,24 +70,19 @@ static void set_shape(u8* restrict const* restrict row, u8 id, int pos_x) {
} }
} }
static inline int shape_is_valid_pos(u8* restrict const* restrict const rows, i8vec2 pos) {
return pos[VX] >= 0 && pos[VX] < COLUMNS &&
pos[VY] >= 0 && pos[VY] < ROWS &&
!rows[pos[VY]][pos[VX]];
}
static int shape_intersects(u8* restrict const* restrict const rows, u8 const id, i8vec2 pos) { static int shape_intersects(u8* restrict const* restrict const rows, u8 const id, i8vec2 pos) {
u16 const shape = shape_from_id(id); i8vec2 bpos[4];
shape_getblocks(id, bpos);
for (int y0 = 0; y0 < SHAPE_HEIGHT; y0++) { return !(shape_is_valid_pos(rows, pos + bpos[0]) &&
u8 const shape_row = shape_get_row(shape, y0); // get the shape row shape_is_valid_pos(rows, pos + bpos[1]) &&
if (shape_row == 0) continue; // if the row doesn't contain data; continue shape_is_valid_pos(rows, pos + bpos[2]) &&
shape_is_valid_pos(rows, pos + bpos[3]));
for (int x0 = 0; x0 < SHAPE_WIDTH; x0++) {
if (shape_is_set(shape_row, x0) == false) continue; // if the bit isn't set at this index; continue
int x1 = pos[VX] + x0;
int y1 = pos[VY] + y0;
if (x1 < 0 || x1 >= COLUMNS) return 1; // if X is out of bounds
if (y1 < 0 || y1 >= ROWS) return 1; // if Y is out of bounds
if (rows[y1][x1] != 0) return 1; // if there is a block here
}
}
return 0;
} }
void place_update(struct gamedata* gdat, int movdat) { void place_update(struct gamedata* gdat, int movdat) {