<?phpnamespace App\Entities;use App\Gfx\Gfx;trait Sprite{ protected string $currentAnimation = 'idle'; protected int $frameIndex = 0; protected float $frameTimer = 0; protected float $frameDuration = 0.1 ; /// 7 ;// WASM debug ; // 100ms par frame protected bool $loop = true; protected $tilesetName ; protected Gfx $sdl; public function __construct(Gfx $sdl) { $this->sdl = $sdl; if (!property_exists($this,'animations') || (count($this->animations) === 0)) { throw new \InvalidArgumentException("Animations array must be defined in the class using the Sprite trait."); } parent::__construct(0,0); $this->setAnimation('idleRight'); // traite le tableau des animations afin de trouver tt les valeurs qui commence par "reverse" foreach ($this->animations as $name => $frames) { if (is_string($frames) && strpos($frames, 'reverse') === 0) { // utilise substr pour obtenir le nom de l'animation sans le préfixe "reverse" et en enlevant la premiere majuscule $this->animations[$name] = $this->animations[strtolower(substr($frames, 7,1)) . substr($frames, 8)]; // ajoute un flag pour savoir qu'on va faire un flip dans chacune des frames $this->animations[$name]['flags']['flip'] = true ; } } } public function hasAnimation(string $animation): bool { return array_key_exists($animation, $this->animations); } public function setAnimation(string $animation) { if (!array_key_exists($animation, $this->animations)) { throw new \InvalidArgumentException("Animation '$animation' is not valid."); } if ($this->currentAnimation !== $animation) { $this->currentAnimation = $animation; $this->frameIndex = 0; $this->frameTimer = 0; } } public function getRectAnimation() { $srcRect = new \SDL_Rect; $animation = $this->getCurrentFrame(); $srcRect->x = $animation['x']; $srcRect->y = $animation['y']; $srcRect->w = $animation['w']; $srcRect->h = $animation['h']; return $srcRect ; } public function draw(\SDL_Rect $destRect, bool $forceFlip = false) { // applique la physique $srcRect = $this->getRectAnimation(); $heroTexture = $this->getTexture(); $animation = $this->getCurrentAnimation(); if ($forceFlip || (isset($animation['flags']['flip']) && $animation['flags']['flip'])) { // Si le frame a le flag flip, on doit faire un flip horizontal $flip = \SDL_FLIP_HORIZONTAL; } else { $flip = \SDL_FLIP_NONE; } // with api native sdl \SDL_RenderCopyEx( $this->sdl->getRenderer()->getRenderer(), $heroTexture['texture'], $srcRect, $destRect, 0, null, $flip ); } /** Current frame of the sheet and its flip: [sx, sy, sw, sh, flip] (recorded by the ghost). */ public function getFrameSnapshot(): array { $frame = $this->getCurrentFrame(); $animation = $this->getCurrentAnimation(); return [$frame['x'], $frame['y'], $frame['w'], $frame['h'], !empty($animation['flags']['flip']) ? 1 : 0]; } public function getAnimation(): string { return $this->currentAnimation; } public function update(float $deltaTime) { // call the parent// parent::update($deltaTime); $this->frameTimer += $deltaTime; if ($this->frameTimer >= $this->frameDuration) { $this->frameTimer -= $this->frameDuration; $this->frameIndex++; if ($this->frameIndex >= count($this->animations[$this->currentAnimation]['coords'])) { if ($this->loop) { $this->frameIndex = 0; } else { $this->frameIndex = count($this->animations[$this->currentAnimation]['coords']) - 1; } } } } public function getCurrentAnimation() { return $this->animations[$this->currentAnimation] ; } public function getCurrentFrame(): array { return $this->getCurrentAnimation()['coords'][$this->frameIndex]; } public function getTexture() { return $this->sdl->getTextures($this->tilesetName)[0] ; }}