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src/ecs/SpriteComponent.h
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216
src/ecs/SpriteComponent.h
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/*
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* SpriteComponent.h
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*
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* Created on: Feb 22, 2020
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* Author: ayoungblood
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*/
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#ifndef SRC_ECS_SPRITECOMPONENT_H_
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#define SRC_ECS_SPRITECOMPONENT_H_
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#define ASCII_START_IDX 32
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#define ASCII_COUNT 96
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#define ASCII_ROW_COUNT 16
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#include "Components.h"
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#include "SDL2/SDL.h"
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#include "../assetmgr/TextureManager.h"
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#include "Animation.h"
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#include <map>
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#include "../assetmgr/AssetManager.h"
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#include "../cjson/cJSON.h"
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#include <iostream>
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#include <fstream>
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#include <sstream>
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#include <stdio.h>
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#include <string>
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class SpriteComponent : public Component
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{
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private:
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TransformComponent *transform;
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SDL_Texture *texture;
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SDL_Rect srcRect, destRect;
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char letter;
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int frames = 0;
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int speed = 100;
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int letterWidth, letterHeight;
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int scale = 1;
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public:
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enum SpriteType : std::size_t
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{
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spriteUIL0,
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spriteUIL1,
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spriteText,
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spriteObject,
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spriteTileMap,
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spriteActor,
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spriteAnimation,
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spriteAtlas
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};
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SpriteType spriteType;
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int animIndex = 0;
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bool ui = false;
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std::map<const char*, Animation> animations;
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SDL_RendererFlip spriteFlip = SDL_FLIP_NONE;
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// SpriteComponent() = default;
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SpriteComponent(std::string id, SpriteType sType)
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{
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spriteType = sType;
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setTex(id);
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}
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// One initializer to rule them all
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SpriteComponent(std::string id, SpriteType sType, std::string json)
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{
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spriteType = sType;
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if(sType == spriteAnimation)
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{
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std::ifstream jsonText(json);
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std::ostringstream tmp;
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tmp << jsonText.rdbuf();
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std::string aJson = tmp.str();
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cJSON * animJson = cJSON_Parse(aJson.c_str());
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cJSON * meta = cJSON_GetObjectItem(animJson, "meta");
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cJSON * frameTags = cJSON_GetObjectItem(meta,"frameTags");
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// printf("frameTags:\n%s\n",cJSON_Print(frameTags));
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int tagsCount = cJSON_GetArraySize(frameTags);
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// printf("number of tags: \n%d\n",tagsCount);
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// cJSON * arrItem = cJSON_GetArrayItem(frameTags,0);
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// cJSON * animItem = cJSON_GetArrayItem(frameTags, 0);
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// printf("Animation item: \n%s\n",cJSON_Print(animItem));
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// printf("arrItem: \n%s\n",cJSON_Print(arrItem));
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for (int t = 0; t < tagsCount; t++)
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{
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// printf("Tag: \n%d\n",t);
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// printf("tag number: \n%d\n",t);
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cJSON * animItem = cJSON_GetArrayItem(frameTags,t);
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// printf("Animation item: \n%s\n",cJSON_Print(animItem));
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cJSON * nameJson = cJSON_GetObjectItem(animItem, "name");
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const char * name = cJSON_Print(nameJson);
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int fromFrame = cJSON_GetObjectItem(animItem, "from")->valueint;
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int toFrame = cJSON_GetObjectItem(animItem, "to")->valueint;
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Animation anim = Animation(fromFrame,toFrame,100);
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animations.emplace(name, anim);
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Play(name);
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// printf("Animation name: \n%s\n",name);
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// printf("animation.frames: %d\n", animations[name].frames);
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// printf("animations.index: %d\n", animations[name].index);
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// printf("animations.speed: %d\n", animations[name].speed);
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}
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// if(!animations.empty()){
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// printf("animations found!\n");
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// }else{
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// printf("No animations\n");
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// }
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// Play("S-Fly");
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setTex(id);
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}
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}
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SpriteComponent(std::string id, SpriteType sType, char fontLetter, int letterW, int letterH, int letterScale)
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{
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spriteType = sType;
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setTex(id);
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// text = isText;
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letter = fontLetter;
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letterWidth = letterW;
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letterHeight = letterH;
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scale = letterScale;
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destRect.w = letterW*letterScale;
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destRect.h = letterH*letterScale;
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}
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SpriteComponent(std::string id, SpriteType sType, SDL_Rect srcR, SDL_Rect destR)
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{
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spriteType = sType;
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setTex(id);
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srcRect = srcR;
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destRect = destR;
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}
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~SpriteComponent()
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{
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SDL_DestroyTexture(texture);
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}
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void setTex(std::string id)
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{
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texture = Game::assets->GetTexture(id);
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}
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void init() override
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{
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transform = &entity->getComponent<TransformComponent>();
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switch(spriteType)
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{
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case spriteText:
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srcRect.x = ((letter-ASCII_START_IDX) % ASCII_ROW_COUNT)*letterWidth;
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srcRect.y = ((letter-ASCII_START_IDX)/ASCII_ROW_COUNT)*letterHeight;
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srcRect.w = letterWidth;
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srcRect.h = letterHeight;
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destRect.w = letterWidth*scale;
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destRect.h = letterHeight*scale;
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break;
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case spriteUIL0: case spriteUIL1:
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break;
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case spriteActor: case spriteAnimation: case spriteAtlas: case spriteObject: case spriteTileMap:
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srcRect.x = srcRect.y = 0;
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srcRect.w = transform->width;
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srcRect.h = transform->height;
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break;
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default:
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break;
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}
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}
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void update() override
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{
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switch(spriteType)
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{
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case spriteUIL0: case spriteUIL1: case spriteText:
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destRect.x = static_cast<int>(transform->position.x);
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destRect.y = static_cast<int>(transform->position.y);
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break;
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case spriteActor: case spriteObject: case spriteAtlas:
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srcRect.y = animIndex * transform->height;
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destRect.x = static_cast<int>(transform->position.x) - Game::camera.x;
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destRect.y = static_cast<int>(transform->position.y) - Game::camera.y;
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destRect.w = transform->width * transform->scale;
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destRect.h = transform->height * transform->scale;
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break;
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case spriteTileMap:
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break;
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case spriteAnimation:
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srcRect.x = srcRect.w * static_cast<int>((SDL_GetTicks()/speed) % frames);
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srcRect.y = animIndex * transform->height;
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destRect.x = static_cast<int>(transform->position.x) - Game::camera.x;
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destRect.y = static_cast<int>(transform->position.y) - Game::camera.y;
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destRect.w = transform->width * transform->scale;
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destRect.h = transform->height * transform->scale;
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break;
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default:
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break;
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}
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}
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void draw() override
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{
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TextureManager::Draw(texture, srcRect, destRect, spriteFlip);
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}
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void Play(const char* animName)
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{
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frames = animations[animName].frames;
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animIndex = animations[animName].index;
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speed = animations[animName].speed;
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}
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};
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#endif /* SRC_ECS_SPRITECOMPONENT_H_ */
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