73 lines
2 KiB
Go
73 lines
2 KiB
Go
package rules
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var constrictorRulesetStages = []string{
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StageGameOverStandard,
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StageMovementStandard,
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StageStarvationStandard,
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StageHazardDamageStandard,
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StageFeedSnakesStandard,
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StageEliminationStandard,
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StageSpawnFoodNoFood,
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StageModifySnakesAlwaysGrow,
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}
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var wrappedConstrictorRulesetStages = []string{
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StageGameOverStandard,
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StageMovementWrapBoundaries,
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StageStarvationStandard,
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StageHazardDamageStandard,
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StageFeedSnakesStandard,
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StageEliminationStandard,
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StageSpawnFoodNoFood,
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StageModifySnakesAlwaysGrow,
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}
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type ConstrictorRuleset struct {
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StandardRuleset
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}
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func (r *ConstrictorRuleset) Name() string { return GameTypeConstrictor }
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func (r ConstrictorRuleset) Execute(bs *BoardState, s Settings, sm []SnakeMove) (bool, *BoardState, error) {
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return NewPipeline(constrictorRulesetStages...).Execute(bs, s, sm)
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}
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func (r *ConstrictorRuleset) ModifyInitialBoardState(initialBoardState *BoardState) (*BoardState, error) {
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_, nextState, err := r.Execute(initialBoardState, r.Settings(), nil)
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return nextState, err
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}
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func (r *ConstrictorRuleset) CreateNextBoardState(prevState *BoardState, moves []SnakeMove) (*BoardState, error) {
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_, nextState, err := r.Execute(prevState, r.Settings(), moves)
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return nextState, err
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}
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func (r *ConstrictorRuleset) IsGameOver(b *BoardState) (bool, error) {
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return GameOverStandard(b, r.Settings(), nil)
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}
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func RemoveFoodConstrictor(b *BoardState, settings Settings, moves []SnakeMove) (bool, error) {
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// Remove all food from the board
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b.Food = []Point{}
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return false, nil
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}
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func GrowSnakesConstrictor(b *BoardState, settings Settings, moves []SnakeMove) (bool, error) {
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// Set all snakes to max health and ensure they grow next turn
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for i := 0; i < len(b.Snakes); i++ {
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if len(b.Snakes[i].Body) <= 0 {
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return false, ErrorZeroLengthSnake
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}
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b.Snakes[i].Health = SnakeMaxHealth
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tail := b.Snakes[i].Body[len(b.Snakes[i].Body)-1]
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subTail := b.Snakes[i].Body[len(b.Snakes[i].Body)-2]
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if tail != subTail {
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growSnake(&b.Snakes[i])
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}
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}
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return false, nil
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}
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