func (plan *Plan) canPutStone(x, y int, stone *materials.Stone) bool {
for stoneX := 0; stoneX < stone.Width(); stoneX++ {
for stoneY := 0; stoneY < stone.Height(); stoneY++ {
if !stone.Get(stoneX, stoneY) {
continue
}
if plan.Get(x+stoneX, y+stoneY) {
return false
}
}
}
return true
}
func (plan *Plan) Put(x, y int, stone *materials.Stone) bool {
if !plan.puttable(x, y, stone) {
return false
}
// put stone
plan.positions = append(plan.positions, &Position{
x: x,
y: y,
stone: stone,
})
plan.refreshBuffer(buffer.Rect{x, y, stone.Height(), stone.Width()})
return true
}
func (plan *Plan) isExistRelatedStone(x, y int, stone *materials.Stone) bool {
for stoneX := 0; stoneX < stone.Width(); stoneX++ {
for stoneY := 0; stoneY < stone.Height(); stoneY++ {
if !stone.Get(stoneX, stoneY) {
continue
}
if plan.GetStoneDot(stoneX+x-1, stoneY+y) ||
plan.GetStoneDot(stoneX+x, stoneY+y-1) ||
plan.GetStoneDot(stoneX+x+1, stoneY+y) ||
plan.GetStoneDot(stoneX+x, stoneY+y+1) {
return true
}
}
}
return false
}