mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-12-25 14:36:13 +01:00
341 lines
No EOL
7 KiB
Text
341 lines
No EOL
7 KiB
Text
enum ANIM_END_ACTION {
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loop,
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pingpong,
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destroy,
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}
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enum PARTICLE_BLEND_MODE {
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normal,
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alpha,
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additive
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}
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function __part(_node) constructor {
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seed = irandom(99999);
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node = _node;
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active = false;
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surf = noone;
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arr_type = 0;
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prevx = 0;
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prevy = 0;
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x = 0;
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y = 0;
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speedx = 0;
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speedy = 0;
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turning = 0;
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turnSpd = 0;
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x_history = [];
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y_history = [];
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drawx = 0;
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drawy = 0;
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drawrot = 0;
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drawsx = 0;
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drawsy = 0;
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accel = 0;
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spVec = [ 0, 0 ];
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grav = 0;
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gravDir = -90;
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gravX = 0;
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gravY = 0;
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scx = 1;
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scy = 1;
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sc_sx = 1;
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sc_sy = 1;
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sct = CURVE_DEF_11;
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rot = 0;
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follow = false;
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rot_s = 0;
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col = -1;
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blend = c_white;
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alp = 1;
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alp_draw = alp;
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alp_fade = 0;
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life = 0;
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life_total = 0;
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life_incr = 0;
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step_int = 0;
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anim_speed = 1;
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anim_end = ANIM_END_ACTION.loop;
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ground = false;
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ground_y = 0;
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ground_bounce = 0;
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ground_friction = 1;
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trailLife = 0;
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trailActive = false;
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frame = 0;
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static reset = function() { #region
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INLINE
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surf = noone;
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prevx = undefined;
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prevy = undefined;
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} #endregion
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static create = function(_surf, _x, _y, _life) { #region
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INLINE
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active = true;
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surf = _surf;
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x = _x;
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y = _y;
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drawx = x;
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drawy = y;
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life_incr = 0;
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life = _life;
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life_total = life;
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if(node.onPartCreate != noone) node.onPartCreate(self);
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trailLife = 0;
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x_history = array_create(life);
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y_history = array_create(life);
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} #endregion
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static setPhysic = function(_sx, _sy, _ac, _g, _gDir, _turn, _turnSpd) { #region
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INLINE
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speedx = _sx;
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speedy = _sy;
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accel = _ac;
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grav = _g;
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gravDir = _gDir;
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gravX = lengthdir_x(grav, gravDir);
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gravY = lengthdir_y(grav, gravDir);
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turning = _turn;
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turnSpd = _turnSpd;
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spVec[0] = point_distance(0, 0, speedx, speedy);
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spVec[1] = point_direction(0, 0, speedx, speedy);
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} #endregion
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static setWiggle = function(wiggle_maps) { #region
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INLINE
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wig_psx = wiggle_maps.wig_psx;
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wig_psy = wiggle_maps.wig_psy;
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wig_rot = wiggle_maps.wig_rot;
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wig_scx = wiggle_maps.wig_scx;
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wig_scy = wiggle_maps.wig_scy;
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wig_dir = wiggle_maps.wig_dir;
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} #endregion
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static setGround = function(_ground, _ground_offset, _ground_bounce, _ground_frict) { #region
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INLINE
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ground = _ground;
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ground_y = y + _ground_offset;
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ground_bounce = _ground_bounce;
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ground_friction = clamp(1 - _ground_frict, 0, 1);
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} #endregion
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static setTransform = function(_scx, _scy, _sct, _rot, _rots, _follow) { #region
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INLINE
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sc_sx = _scx;
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sc_sy = _scy;
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sct = _sct;
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rot = _rot;
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rot_s = _rots;
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follow = _follow;
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} #endregion
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static setDraw = function(_col, _blend, _alp, _fade) { #region
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INLINE
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col = _col;
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blend = _blend;
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alp = _alp;
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alp_draw = _alp;
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alp_fade = _fade;
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} #endregion
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static kill = function(callDestroy = true) { #region
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INLINE
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active = false;
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if(callDestroy && node.onPartDestroy != noone)
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node.onPartDestroy(self);
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} #endregion
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static step = function(frame = 0) { #region
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INLINE
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//if(life_total > 0) print($"Step {seed}: {trailLife}");
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trailLife++;
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if(!active) return;
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x += speedx;
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self.frame = frame;
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random_set_seed(seed + life);
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if(ground && y + speedy > ground_y) {
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y = ground_y;
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speedy = -speedy * ground_bounce;
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if(abs(speedy) < 0.1)
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speedx *= ground_friction;
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} else
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y += speedy;
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var dirr = point_direction(0, 0, speedx, speedy);
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var diss = point_distance(0, 0, speedx, speedy);
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diss = max(0, diss + accel);
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if(speedx != 0 || speedy != 0) {
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dirr += wig_dir.get(seed + life);
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if(turning != 0) {
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var trn = turning;
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if(turnSpd > 0) trn = turning * diss * turnSpd;
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else if(turnSpd < 0) trn = turning / diss * turnSpd;
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dirr += trn
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}
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}
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speedx = lengthdir_x(diss, dirr) + gravX;
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speedy = lengthdir_y(diss, dirr) + gravY;
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if(follow) rot = spVec[1];
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else rot += rot_s;
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if(node.onPartStep != noone && step_int > 0 && safe_mod(life, step_int) == 0)
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node.onPartStep(self);
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if(life-- < 0) kill();
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if(prevx != undefined) {
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spVec[0] = point_distance(prevx, prevy, x, y);
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spVec[1] = point_direction(prevx, prevy, x, y);
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}
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x_history[life_incr] = drawx;
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y_history[life_incr] = drawy;
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life_incr++;
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prevx = x;
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prevy = y;
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drawx = x;
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drawy = y;
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drawrot = rot;
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drawsx = sc_sx;
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drawsy = sc_sy;
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drawx += wig_psx.get(seed + life);
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drawy += wig_psy.get(seed + life);
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drawrot += wig_rot.get(seed + life);
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drawsx += wig_scy.get(seed + life);
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drawsy += wig_scy.get(seed + life);
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} #endregion
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static draw = function(exact, surf_w, surf_h, _index = 0) { #region
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INLINE
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var ss = surf;
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if(arr_type == 2 && surf != noone && is_array(surf)) {
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var ind = abs(round((life_total - life) * anim_speed));
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var len = array_length(surf);
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switch(anim_end) {
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case ANIM_END_ACTION.loop:
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ss = surf[safe_mod(ind, len)];
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break;
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case ANIM_END_ACTION.pingpong:
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var ping = safe_mod(ind, (len - 1) * 2 + 1);
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ss = surf[ping >= len? (len - 1) * 2 - ping : ping];
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break;
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case ANIM_END_ACTION.destroy:
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if(ind >= len) {
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kill();
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return;
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} else
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ss = surf[ind];
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break;
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}
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} else if(arr_type == 3) ss = array_safe_get(ss, _index);
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var surface = is_instanceof(ss, SurfaceAtlas)? ss.getSurface() : node.surface_cache[$ ss];
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if(!is_surface(surface))
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return;
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var lifeRat = 1 - life / life_total;
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var scCurve = sct == noone? 1 : sct.get(lifeRat);
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scx = drawsx * scCurve;
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scy = drawsy * scCurve;
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var _xx, _yy;
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var s_w = surface_get_width_safe(surface) * scx;
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var s_h = surface_get_height_safe(surface) * scy;
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var _pp = point_rotate(-s_w / 2, -s_h / 2, 0, 0, rot);
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_xx = drawx + _pp[0];
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_yy = drawy + _pp[1];
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if(exact) {
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_xx = round(_xx);
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_yy = round(_yy);
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}
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var x0 = _xx - s_w * 1.5;
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var y0 = _yy - s_h * 1.5;
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var x1 = _xx + s_w * 1.5;
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var y1 = _yy + s_h * 1.5;
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if(x0 > surf_w || y0 > surf_h || x1 < 0 || y1 < 0)
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return;
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var cc = (col == -1)? c_white : col.eval(lifeRat);
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if(blend != c_white) cc = colorMultiply(blend, cc);
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alp_draw = alp * (alp_fade == noone? 1 : alp_fade.get(lifeRat));
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draw_surface_ext_safe(surface, _xx, _yy, scx, scy, drawrot, cc, alp_draw);
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} #endregion
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static getPivot = function() { #region
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INLINE
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return [x, y];
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} #endregion
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static clone = function() { #region
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var _p = new __part(node);
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struct_override(_p, self);
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return _p;
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} #endregion
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}
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#region helper
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#macro UPDATE_PART_FORWARD static updateParticleForward = function() { \
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var pt = outputs[| 0]; \
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for( var i = 0; i < array_length(pt.value_to); i++ ) { \
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var _n = pt.value_to[i]; \
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if(_n.value_from != pt) continue; \
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\
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if(variable_struct_exists(_n.node, "updateParticleForward")) \
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_n.node.updateParticleForward(); \
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} \
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}
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#endregion |