Battlesnake/Byte-snake-engine
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Add parameters for food spawn chance and min food.

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This commit is contained in:
bvanvugt 2020-11-20 12:00:58 -08:00
parent c6d9ba12ab
commit ca4b6c5dce
2 changed files with 88 additions and 20 deletions
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18
standard.go
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@ -6,15 +6,16 @@ import (
"sort"
)
type StandardRuleset struct{}
type StandardRuleset struct {
FoodSpawnChance int32 // [0, 100]
MinimumFood int32
}
const (
BoardSizeSmall = 7
BoardSizeMedium = 11
BoardSizeLarge = 19
FoodSpawnChance = 0.15
SnakeMaxHealth = 100
SnakeStartSize = 3
@ -173,7 +174,7 @@ func (r *StandardRuleset) placeFoodFixed(b *BoardState) error {
}
func (r *StandardRuleset) placeFoodRandomly(b *BoardState) error {
return r.spawnFood(b, len(b.Snakes))
return r.spawnFood(b, int32(len(b.Snakes)))
}
func (r *StandardRuleset) isKnownBoardSize(b *BoardState) bool {
@ -518,14 +519,17 @@ func (r *StandardRuleset) growSnake(snake *Snake) {
}
func (r *StandardRuleset) maybeSpawnFood(b *BoardState) error {
if len(b.Food) == 0 || rand.Float32() <= FoodSpawnChance {
numCurrentFood := int32(len(b.Food))
if numCurrentFood < r.MinimumFood {
return r.spawnFood(b, r.MinimumFood-numCurrentFood)
} else if r.FoodSpawnChance > 0 && int32(rand.Intn(100)) < r.FoodSpawnChance {
return r.spawnFood(b, 1)
}
return nil
}
func (r *StandardRuleset) spawnFood(b *BoardState, n int) error {
for i := 0; i < n; i++ {
func (r *StandardRuleset) spawnFood(b *BoardState, n int32) error {
for i := int32(0); i < n; i++ {
unoccupiedPoints := r.getUnoccupiedPoints(b, false)
if len(unoccupiedPoints) > 0 {
newFood := unoccupiedPoints[rand.Intn(len(unoccupiedPoints))]