diff --git a/mods/ITEMS/mcl_fire/init.lua b/mods/ITEMS/mcl_fire/init.lua index 50303e3b2..6d8536fec 100644 --- a/mods/ITEMS/mcl_fire/init.lua +++ b/mods/ITEMS/mcl_fire/init.lua @@ -28,7 +28,72 @@ local alldirs= { x = 0, y = 0, z = 1} } +-- 3 exptime variants because the animation is not tied to particle expiration time. +-- 3 colorized variants to imitate minecraft's +local smoke_pdef_base = { + amount = 0.001, + time = 0, + -- minpos = vector.add(pos, { x = -0.45, y = -0.45, z = -0.45 }), + -- maxpos = vector.add(pos, { x = 0.45, y = 0.45, z = 0.45 }), + minvel = { x = -0.1, y = 0.3, z = -0.1 }, + maxvel = { x = 0.1, y = 1.6, z = 0.1 }, + -- minexptime = 3 exptime variants, + -- maxexptime = 3 exptime variants + minsize = 4.0, + maxsize = 4.5, + -- texture = "mcl_particles_smoke_anim.png^[colorize:#000000:(3 colourize variants)", + animation = { + type = "vertical_frames", + aspect_w = 8, + aspect_h = 8, + -- length = 3 exptime variants + }, + collisiondetection = true, +} +local smoke_pdef_cached = {} local spawn_smoke = function(pos) + local min = math.min + local new_minpos = vector.add(pos, { x = -0.45, y = -0.45, z = -0.45 }) + local new_maxpos = vector.add(pos, { x = 0.45, y = 0.45, z = 0.45 }) + + -- populate the cache + if not next(smoke_pdef_cached) then + -- the last frame plays for 1/8 * N seconds, so we can take advantage of it + -- to have varying exptime for each variant. + local exptimes = { 0.75, 1.5, 4.0 } + local colorizes = { "199", "209", "243" } -- round(78%, 82%, 90% of 256) - 1 + + local id = 1 + for _,exptime in ipairs(exptimes) do + for _,colorize in ipairs(colorizes) do + smoke_pdef_base.minpos = new_minpos + smoke_pdef_base.maxpos = new_maxpos + smoke_pdef_base.maxexptime = exptime + smoke_pdef_base.animation.length = exptime + 0.1 + -- minexptime must be set such that the last frame is actully rendered, + -- even if its very short. Larger exptime -> larger range + smoke_pdef_base.minexptime = min(exptime, (7.0/8.0 * (exptime + 0.1) + 0.1)) + smoke_pdef_base.texture = "mcl_particles_smoke_anim.png^[colorize:#000000:" ..colorize + + smoke_pdef_cached[id] = table.copy(smoke_pdef_base) + + mcl_particles.add_node_particlespawner(pos, smoke_pdef_cached[id], "high") + + id = id + 1 + end + end + + -- cache already populated + else + for i, smoke_pdef in ipairs(smoke_pdef_cached) do + smoke_pdef.minpos = new_minpos + smoke_pdef.maxpos = new_maxpos + mcl_particles.add_node_particlespawner(pos, smoke_pdef, "high") + end + end + +--[[ Old smoke pdef + local spawn_smoke = function(pos) mcl_particles.add_node_particlespawner(pos, { amount = 0.1, time = 0, @@ -48,6 +113,8 @@ local spawn_smoke = function(pos) length = 2.1, }, }, "high") + -- ]] + end --