project-ely/internal/game/entity/animation/penguin_animations.go

package animation

import (
	"git.wisellama.rocks/Project-Ely/project-ely/internal/game/sprite"
	rl "github.com/gen2brain/raylib-go/raylib"
)

var PenguinAnimations map[int]entityAnimation

const (
	PENGUIN_WALK_RIGHT int = iota
	PENGUIN_WALK_LEFT
	PENGUIN_WALK_UP
	PENGUIN_WALK_DOWN
	PENGUIN_STATIONARY_RIGHT
	PENGUIN_STATIONARY_LEFT
	PENGUIN_STATIONARY_UP
	PENGUIN_STATIONARY_DOWN
)

const (
	PENGUIN_NUM_ANIMS = 8
	PENGUIN_DEFAULT   = PENGUIN_STATIONARY_RIGHT
)

func DefinePenguinAnimations() {
	filename := sprite.DELILAHWALKING

	var (
		dimensions rl.Vector2
		offset     rl.Vector2
		center     rl.Vector2
		length     int
		speed      int
		border     int
	)

	dimensions = rl.Vector2{X: 13, Y: 17}
	PenguinAnimations = make(map[int]entityAnimation)

	// Walking Right is in the spritesheet.
	speed = 5
	offset = rl.Vector2{X: 0, Y: 1}
	length = 5
	border = 1                     // optional border around each sprite
	center = getCenter(dimensions) // center is for rotation, nil will default to w/2 h/2
	walkRight := sprite.NewAnimation(filename, dimensions, offset, length, border)
	PenguinAnimations[PENGUIN_WALK_RIGHT] = NewEntityAnimation(walkRight, speed, length, 0, center, FLIP_NONE)

	// Walking Left is just that flipped.
	PenguinAnimations[PENGUIN_WALK_LEFT] = NewEntityAnimation(walkRight, speed, length, 0, center, FLIP_HORIZONTAL)

	// Stationary Right/Left is just the first frame.
	length = 1
	stationaryRight := sprite.NewAnimation(filename, dimensions, offset, length, border)
	PenguinAnimations[PENGUIN_STATIONARY_RIGHT] = NewEntityAnimation(stationaryRight, speed, length, 0, center, FLIP_NONE)
	PenguinAnimations[PENGUIN_STATIONARY_LEFT] = NewEntityAnimation(stationaryRight, speed, length, 0, center, FLIP_HORIZONTAL)

	// Walk Up
	length = 4
	offset = rl.Vector2{X: 0, Y: 3}
	walkUp := sprite.NewAnimation(filename, dimensions, offset, length, border)
	PenguinAnimations[PENGUIN_WALK_UP] = NewEntityAnimation(walkUp, speed, length, 0, center, FLIP_NONE)

	// Stationary Up
	length = 1
	stationaryUp := sprite.NewAnimation(filename, dimensions, offset, length, border)
	PenguinAnimations[PENGUIN_STATIONARY_UP] = NewEntityAnimation(stationaryUp, speed, length, 0, center, FLIP_NONE)

	// Walk Down
	length = 4
	offset = rl.Vector2{X: 0, Y: 0}
	walkDown := sprite.NewAnimation(filename, dimensions, offset, length, border)
	PenguinAnimations[PENGUIN_WALK_DOWN] = NewEntityAnimation(walkDown, speed, length, 0, center, FLIP_NONE)

	// Stationary Down
	length = 1
	stationaryDown := sprite.NewAnimation(filename, dimensions, offset, length, border)
	PenguinAnimations[PENGUIN_STATIONARY_DOWN] = NewEntityAnimation(stationaryDown, speed, length, 0, center, FLIP_NONE)
}