#include "heap.h"
#include <stdlib.h>

static int heap_size = 0;
static int heap_address = 0;
static char* heap_mem = NULL;

void heap_init() {
    heap_size = 0;
    heap_address = 0;
    if (heap_mem != NULL) { free(heap_mem); heap_mem = NULL; }
}

const int heap_get_address() {
    return heap_address;
}

void heap_reserve(const int size) {
    heap_size += size;
    heap_address += size;
}

const int heap_get_size() {
    return heap_size;
}

void heap_alloc() {
    if (heap_mem == NULL) heap_mem = (char*)malloc(heap_size);
}

const float heap_get_float(const int address) {
    return (float)heap_mem[address];
}

const char* heap_get_string(const int address) {
    return &heap_mem[address];
}

void heap_set_float(const int address, const float value) {
    *(float*)&heap_mem[address] = value;
    //float *f = (float*)&heap_mem[address];
    //*f = value;
}

void heap_set_string(const int address, const char* value) {
    const int size = *value;
    for (int i = 0; i <= size; i++) { heap_mem[address+i] = value[i]; }
}