func (tb *towerBuilder) Build(control game.PlayerControls, name string) error {
row := tb.row
col := tb.col
assending := tb.assending
if int(row) >= stage.Grass_Rows+stage.Spawn_Size {
return AtEndErr
}
if assending {
col++
} else {
col--
}
// if were at the start and want to goto the next
// you must move down
if col == 0 && !assending {
row += 2
col -= 1
tb.row = row
tb.col = col
tb.assending = !assending
err := tb.Build(control, name)
if err != nil {
return err
}
return nil
}
// if were at the start and want to goto the next
// you must move down
if int(col) == stage.Grass_Cols-1 && assending {
row += 2
col += 1
tb.row = row
tb.col = col
tb.assending = !assending
err := tb.Build(control, name)
if err != nil {
return err
}
return nil
}
tb.row = row
tb.col = col
err := control.BuyTower(name, uint16(row), uint16(col))
if err != nil {
return err
}
return nil
}
