Temp commit

src/CRE/random.cpp

@@ -0,0 +1,59 @@
+/*
+    by korenkonder
+    GitHub/GitLab: korenkonder
+*/
+
+#include "random.hpp"
+
+static RandState* rand_state_array;
+
+RandState::RandState() {
+
+}
+
+RandState::~RandState() {
+
+}
+
+inline void rand_state_array_init() {
+    rand_state_array = new RandState[5];
+}
+
+inline RandState* rand_state_array_get(int32_t id) {
+    if (id > -1 && id < 5)
+        return &rand_state_array[id];
+    return 0;
+}
+
+inline float_t rand_state_array_get_float(int32_t id) {
+    RandState* rand_state = rand_state_array_get(id);
+    if (rand_state) {
+        std::uniform_int_distribution<uint32_t> dis;
+        return (float_t)(dis(rand_state->mt) >> 8) * (float_t)(1.0 / (double_t)0x1000000);
+    }
+    return 0.0f;
+}
+
+inline uint32_t rand_state_array_get_int(int32_t id) {
+    RandState* rand_state = rand_state_array_get(id);
+    if (rand_state) {
+        std::uniform_int_distribution<uint32_t> dis;
+        return dis(rand_state->mt);
+    }
+    return 0;
+}
+
+inline uint32_t rand_state_array_get_int(uint32_t min, uint32_t max, int32_t id) {
+    uint64_t _min = min;
+    uint64_t _max = max;
+    RandState* rand_state = rand_state_array_get(id);
+    if (rand_state && min <= max) {
+        std::uniform_int_distribution<uint32_t> dis;
+        return (uint32_t)(_min + (((_max - _min + 1) * (uint64_t)dis(rand_state->mt)) >> 32));
+    }
+    return 0;
+}
+
+inline void rand_state_array_free() {
+    delete[] rand_state_array;
+}