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Arrow sprites

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This commit is contained in:
Miroslav Vasilev 2024-06-11 11:04:22 +03:00
parent 855fa8dfc1
commit 9445958338
4 changed files with 53 additions and 11 deletions
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26
engine/engine_util.go
View file

@ -62,6 +62,32 @@ func (p Position) WithOffset(xOffset int, yOffset int) Position {
return p
}
func (p Position) Diff(other Position) Position {
p.x = p.x - other.x
p.y = p.y - other.y
return p
}
func (p Position) Sign() Position {
p.x = IntSign(p.x)
p.y = IntSign(p.y)
return p
}
func IntSign(i int) int {
if i < 0 {
return -1
}
if i > 0 {
return 1
}
return 0
}
type Sized struct {
size Size
}

10
game/model/entity_behavior.go
View file

@ -5,7 +5,7 @@ import (
"mvvasilev/last_light/engine"
)
type ProjectileSprite rune
type ArrowSprite rune
//
// \ | /
@ -15,10 +15,10 @@ type ProjectileSprite rune
// / | \
const (
ProjectileSprite_NorthSouth ProjectileSprite = '|'
ProjectileSprite_EastWest = '─'
ProjectileSprite_NorthEastSouthWest = '/'
ProjectileSprite_NorthWestSouthEast = '\\'
ProjectileSprite_NorthSouth ArrowSprite = '|'
ProjectileSprite_EastWest ArrowSprite = '─'
ProjectileSprite_NorthEastSouthWest ArrowSprite = '/'
ProjectileSprite_NorthWestSouthEast ArrowSprite = '\\'
)
func ProjectileBehavior(eventLog *engine.GameEventLog, dungeon *Dungeon) func(npc Entity) (complete bool, requeue bool) {

6
game/model/entity_npcs.go
View file

@ -12,11 +12,11 @@ const (
ImpClaws specialItemType = 100_000 + iota
)
func Entity_ArrowProjectile(source Entity, path *engine.Path, eventLog *engine.GameEventLog, dungeon *Dungeon) Entity {
func Entity_Projectile(name string, symbol rune, style tcell.Style, source Entity, path *engine.Path, eventLog *engine.GameEventLog, dungeon *Dungeon) Entity {
return CreateEntity(
WithName("Arrow"),
WithName(name),
WithPosition(path.From()),
WithPresentation('?', tcell.StyleDefault),
WithPresentation(symbol, style),
WithProjectileData(source, path),
WithBehavior(1, ProjectileBehavior(eventLog, dungeon)),
)

22
game/state/look_state.go
View file

@ -103,10 +103,11 @@ func (ls *LookState) ShootEquippedWeapon() {
// TODO: Projectiles
dX, dY := ls.lookCursorCoordsToDungeonCoords()
cursorPos := engine.PositionAt(dX, dY)
distance := engine.PositionAt(dX, dY).Distance(ls.player.Position())
distance := cursorPos.Distance(ls.player.Position())
if distance >= 12 {
if distance > 12 {
ls.eventLog.Log("Can't see in the dark that far")
return
@ -122,7 +123,22 @@ func (ls *LookState) ShootEquippedWeapon() {
return
}
projectile := model.Entity_ArrowProjectile(ls.player, path, ls.eventLog, ls.dungeon)
direction := ls.player.Position().Diff(cursorPos).Sign()
sprites := map[engine.Position]model.ArrowSprite{
engine.PositionAt(-1, -1): model.ProjectileSprite_NorthWestSouthEast,
engine.PositionAt(+1, -1): model.ProjectileSprite_NorthWestSouthEast,
engine.PositionAt(-1, +1): model.ProjectileSprite_NorthEastSouthWest,
engine.PositionAt(+1, +1): model.ProjectileSprite_NorthEastSouthWest,
engine.PositionAt(0, +1): model.ProjectileSprite_NorthSouth,
engine.PositionAt(0, -1): model.ProjectileSprite_NorthSouth,
engine.PositionAt(-1, 0): model.ProjectileSprite_EastWest,
engine.PositionAt(+1, 0): model.ProjectileSprite_EastWest,
}
sprite := sprites[direction]
projectile := model.Entity_Projectile("Arrow", rune(sprite), tcell.StyleDefault, ls.player, path, ls.eventLog, ls.dungeon)
ls.turnSystem.Schedule(
projectile.Behavior().Speed,