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examples/tetris: an extra collision check

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This commit is contained in:
Alexander Medvednikov 2019-07-23 03:29:11 +02:00
parent 083ee6c3c2
commit 89042b0f97
1 changed files with 9 additions and 2 deletions
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11
examples/tetris/tetris.v
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@ -193,7 +193,7 @@ fn (g mut Game) move_tetro() {
g.pos_y++
}
fn (g mut Game) move_right(dx int) {
fn (g mut Game) move_right(dx int) bool {
// Reached left/right edge or another tetro?
for i := 0; i < TetroSize; i++ {
tetro := g.tetro[i]
@ -202,10 +202,11 @@ fn (g mut Game) move_right(dx int) {
row := g.field[y]
if row[x] != 0 {
// Do not move
return
return false
}
}
g.pos_x += dx
return true
}
fn (g mut Game) delete_completed_lines() {
@ -324,11 +325,17 @@ fn key_down(wnd voidptr, key, code, action, mods int) {
glfw.set_should_close(wnd, true)
case glfw.KeyUp:
// Rotate the tetro
old_rotation_idx := game.rotation_idx
game.rotation_idx++
if game.rotation_idx == TetroSize {
game.rotation_idx = 0
}
game.get_tetro()
if !game.move_right(0) {
game.rotation_idx = old_rotation_idx
game.get_tetro()
}
if game.pos_x < 0 {
game.pos_x = 1
}