red.cpp

#include "red.h"
#include <cstdio>

Red::Red() : time_of_last_red(0),power(TYPE_OF_POWER),display(0),time_of_last_power_up(0){
	frequency_of_power_up = time_between_red;
	points_for_red = POINTS_FOR_RED;
	last_animation = 0;
	state = 0;
	food_bmp = SDL_LoadBMP("./bitmaps/czer.bmp");
	big_food_bmp = SDL_LoadBMP("./bitmaps/big_czer.bmp");
	food_now = food_bmp;
}

int Red::display_red(double time,Snake* snake,SDL_Surface* screen,int* points,double delta){
	int wait_time = frequency_of_power_up + time_how_long_red_stays;
	if (!time_of_last_red) wait_time = frequency_of_power_up;
	progress_bar(screen, time,*snake);

	if (!display && (int)(time - time_of_last_red) == wait_time){
		position_food(*snake, screen);
		display = 1;
		time_of_last_red = time;
		DrawFood(screen,delta);
		power_up(snake, screen, time,points);
		return 1;
	}
	else if (time - time_of_last_red <= time_how_long_red_stays && display){
		DrawFood(screen,delta);
		power_up(snake, screen, time,points);
		return 1;
	}
	else if (display){
		display = 0;
	}
	return 0;
}

void Red::power_up(Snake* snake, SDL_Surface *screen,double time,int* points){
	if (time-time_of_last_power_up < time_how_long_red_stays || !check_if_eaten(*snake))
		return ;

	time_of_last_power_up = time;
	display = 0;

	if (power == 0){
		power = (rand()%2)+1;
	}

	if (power == 1){
		*points+=points_for_red;
		snake->slowdown_snake();
	}
	else if (power == 2){
		*points+=points_for_red;
		snake->shrink_snake(removed_parts);
	}
}

double Red::progress_bar(SDL_Surface* screen, double time,Snake snake){
	double elapsed_time = time - time_of_last_red;
	double percent = (time_how_long_red_stays - elapsed_time) / time_how_long_red_stays;
	if(time-time_of_last_power_up< frequency_of_power_up){
		return 0;
	}
	else if (time >= frequency_of_power_up && elapsed_time <= time_how_long_red_stays) {
		return percent;
	}
	return 0;
}
void Red::save_red(FILE* fptr){
	save(fptr);
	fprintf(fptr,",%lf,%lf,%d,%d\n",time_of_last_red,
	time_of_last_power_up,power,display);
}
int Red::load_red(FILE* fptr){
	if(!load(fptr)) return 0;
	if(fscanf(fptr,",%lf,%lf,%d,%d\n",&time_of_last_red,
	&time_of_last_power_up,&power,&display))
		return 1;
	return 0;
}
void Red::load_config(FILE* fptr){
	fscanf(fptr,"Punkty za czerwone: %d\n",&points_for_red);
	fscanf(fptr,"Czestotliwosc bonusow: %d\n",&frequency_of_power_up);
}