diff --git a/README.md b/README.md
index 2d86c1b..805a943 100644
--- a/README.md
+++ b/README.md
@@ -75,4 +75,10 @@ entities:
         [.. freq, defaultState] with
             freq = int[0 - 15]
             defaultState = {0, 1}
+
+    -> 13 (math block)
+        [.. defaultState, timeOff] with
+            defaultState = {0, 1}
+            dtime = double([>0.0] for time-limited press, or use -1.0 if no deactivation)
+
 ```
\ No newline at end of file
diff --git a/bin/back b/bin/back
index 00bb691..1752b76 100755
Binary files a/bin/back and b/bin/back differ
diff --git a/levels/math/distr.txt b/levels/math/distr.txt
new file mode 100644
index 0000000..4876893
--- /dev/null
+++ b/levels/math/distr.txt
@@ -0,0 +1,20 @@
+100.0 0.0   0.0   0.0
+95.0  5.0   0.0   0.0
+87.0  13.0  0.0   0.0
+80.0  20.0  0.0   0.0
+72.0  28.0  0.0   0.0
+70.0  25.0  5.0   0.0
+70.0  18.0  12.0  0.0
+65.0  20.0  15.0  0.0
+65.0  16.0  19.0  0.0
+60.0  18.0  22.0  0.0
+95.0  0.0   0.0   5.0
+90.0  5.0   0.0   5.0
+83.0  12.0  0.0   5.0
+72.0  18.0  0.0   10.0
+69.0  21.0  0.0   10.0
+64.0  21.0  5.0   10.0
+61.0  16.0  10.0  13.0
+55.0  18.0  14.0  13.0
+56.0  12.0  16.0  16.0
+50.0  14.0  17.0  19.0
\ No newline at end of file
diff --git a/obj/base.o b/obj/base.o
index 393fa99..88d4efb 100644
Binary files a/obj/base.o and b/obj/base.o differ
diff --git a/obj/display.o b/obj/display.o
index bbb2c6c..c8839b3 100644
Binary files a/obj/display.o and b/obj/display.o differ
diff --git a/obj/entities.o b/obj/entities.o
index bd430b8..5bc1825 100644
Binary files a/obj/entities.o and b/obj/entities.o differ
diff --git a/obj/generation.o b/obj/generation.o
index 0103707..6f57b42 100644
Binary files a/obj/generation.o and b/obj/generation.o differ
diff --git a/obj/maeth.o b/obj/maeth.o
index 26f0c20..8983ffd 100644
Binary files a/obj/maeth.o and b/obj/maeth.o differ
diff --git a/obj/main.o b/obj/main.o
index b770e69..7ba04a4 100644
Binary files a/obj/main.o and b/obj/main.o differ
diff --git a/obj/move.o b/obj/move.o
index 5309f2e..b4361d8 100644
Binary files a/obj/move.o and b/obj/move.o differ
diff --git a/src/base.c b/src/base.c
index 48ee0fa..b691f2b 100644
--- a/src/base.c
+++ b/src/base.c
@@ -428,4 +428,70 @@ void add_entity(entity** arr, int* memlen, int* len, entity* ent) {
     free(arr[*len]);
     arr[*len] = ent;
     *len += 1;
+}
+
+int is_neg0 = 1;
+int read_int(FILE* ptr) {
+    bool is_reading = false;
+    int buffer = 0;
+    int sign = 1;
+    char c = fgetc(ptr);
+    while(c != EOF) {
+        if(c == '-') {
+            sign = -1;
+        } else if((int)c >= 48 && (int)c <= 57) {
+            is_reading = true;
+            buffer = 10*buffer + (int)c - 48;
+        } else if(is_reading) {
+            if(sign == -1 && buffer == 0) {
+                is_neg0 = -1;
+            } else {
+                is_neg0 = 1;
+            }
+            return buffer*sign;
+        }
+        c = fgetc(ptr);
+    }
+    if(sign == -1 && buffer == 0) {
+        is_neg0 = -1;
+    } else {
+        is_neg0 = 1;
+    }
+    return buffer*sign;
+}
+
+char* read_string(FILE* ptr) {
+    char* res0 = malloc(sizeof(char)*52);
+    char c = fgetc(ptr);
+    int i = 0;
+    while(c != EOF && c == ' ') { // ignore initial spaces
+        c = fgetc(ptr);
+    }
+    while(c != EOF && c != ',') {
+        res0[i] = c;
+        i += 1;
+        c = fgetc(ptr);
+    }
+    res0[i] = '\0';
+    return res0;
+}
+
+double sign(double __x) {
+    if(__x >= 0.0) {
+        return 1.0;
+    }
+    return -1.0;
+}
+
+double read_float(FILE* ptr) {
+    int ent = read_int(ptr);
+    int sn0 = is_neg0;
+    int frac = read_int(ptr);
+    //printf("%d.%d; ", ent, frac);
+    if(ent != 0.0) {
+        return sn0*(ent/abs(ent))*(absf((double)ent) + ((double)frac)/(pow(10.0, (double)ln_baseN(frac, 10))));
+    } else {
+        //printf("%d, %d\n", ent, frac);
+        return sn0*((double)frac)/(pow(10.0, (double)ln_baseN(frac, 10)));
+    }
 }
\ No newline at end of file
diff --git a/src/base.h b/src/base.h
index aa64873..d1b1bd5 100644
--- a/src/base.h
+++ b/src/base.h
@@ -24,10 +24,10 @@ int to_int(double n);
 int line_count(char* filename);
 int str_to_int(char* s);
 bool str_equal(char* s1, char* s2);
-bool pt_equal_3D(pt_2d p1, pt_2d p2);
-bool pt_equal_2D(pt_2d p1, pt_2d p2);
-bool pt_equal_3D_eps(pt_2d p1, pt_2d p2, double epsilon);
-bool pt_equal_2D_eps(pt_2d p1, pt_2d p2, double epsilon, bool debug0);
+
+int read_int(FILE* ptr);
+double read_float(FILE* ptr);
+char* read_string(FILE* ptr);
 
 pt_2d vect_diff(pt_2d p1, pt_2d p2);
 double dot2D(pt_2d p1, pt_2d p2);
diff --git a/src/display.c b/src/display.c
index aa269fd..fe75ae2 100644
--- a/src/display.c
+++ b/src/display.c
@@ -182,6 +182,10 @@ bool is_button_block_on(entity* ent) {
     );
 }
 
+bool is_math_block_unsolved(entity* ent) {
+    return (ent->entity_type != 13 || ent->metad1 == 0.0);
+}
+
 void gl_renderAll(room* rtd, double offx, double offy, double offz) {
     //printf("------------------------\n");
     if(rtd != NULL) {
@@ -200,7 +204,7 @@ void gl_renderAll(room* rtd, double offx, double offy, double offz) {
         }
         for(int k = 0; k < rtd->ent_len; k++) {
             if(is_visible(rtd->ents[k]->pos, offx, offy, offz)) {
-                if(is_button_block_on(rtd->ents[k]) && (rtd->ents[k]->entity_type != 9 || rtd->ents[k]->metai1)) {
+                if(is_math_block_unsolved(rtd->ents[k]) && is_button_block_on(rtd->ents[k]) && (rtd->ents[k]->entity_type != 9 || rtd->ents[k]->metai1)) {
                     glBindTexture(GL_TEXTURE_2D, textures[rtd->ents[k]->tex]);
                 } else {
                     glBindTexture(GL_TEXTURE_2D, textures[rtd->ents[k]->tex2]);
diff --git a/src/entities.c b/src/entities.c
index b43ca22..85b4409 100644
--- a/src/entities.c
+++ b/src/entities.c
@@ -175,8 +175,24 @@ void spinning_platform(double x, double y, double z, double w, double h, double
     ret->vt_angle += ent->metad2*dtime;
 }
 
+// metai1 = default state
+// metad1 = remaining time
+// metad2 = activation time
+void math_block(double x, double y, double z, double w, double h, double d, double hz_angle, double vt_angle, float dtime, entity* ent, cube_0* ret) {
+    if(ent->metad1 > -0.9) {
+        ent->metad1 = maxd(ent->metad1 - (double)dtime, 0.0);
+    }
+}
+
+void active_math(float dtime, int* hp, int* dmg, entity* ent, cube_0* ret) {
+    if(ent->metad1 == 0.0) {
+        mathSignal = true;
+        ent->metad1 = ent->metad2;
+    }
+}
+
 void spinning_translate(float dtime, int* hp, int* dmg, entity* ent, cube_0* ret) {
-    
+    // ye
 }
 
 // metai1 = button freq                 (same for blocks)
diff --git a/src/entities.h b/src/entities.h
index 6c9cf3a..40fc69c 100644
--- a/src/entities.h
+++ b/src/entities.h
@@ -19,7 +19,9 @@ void go_to_player(double x, double y, double z, double w, double h, double d, do
 void subtitle_text_box(double x, double y, double z, double w, double h, double d, double hz_angle, double vt_angle, float dtime, entity* ent, cube_0* ret);
 void beating_block(double x, double y, double z, double w, double h, double d, double hz_angle, double vt_angle, float dtime, entity* ent, cube_0* ret);
 void spinning_platform(double x, double y, double z, double w, double h, double d, double hz_angle, double vt_angle, float dtime, entity* ent, cube_0* ret);
+void math_block(double x, double y, double z, double w, double h, double d, double hz_angle, double vt_angle, float dtime, entity* ent, cube_0* ret) ;
 
+void active_math(float dtime, int* hp, int* dmg, entity* ent, cube_0* ret);
 void update_button(float dtime, int* hp, int* dmg, entity* ent, cube_0* ret);
 void spinning_translate(float dtime, int* hp, int* dmg, entity* ent, cube_0* ret);
 void detectHit(float dtime, int* hp, int* dmg, entity* ent, cube_0* ret);
diff --git a/src/generation.c b/src/generation.c
index 52e9839..b8d8226 100644
--- a/src/generation.c
+++ b/src/generation.c
@@ -145,6 +145,14 @@ void init_ent_generator(int n) {
     hashtbl_entities[12].updatePos = NULL;
     hashtbl_entities[12].onHit = NULL;
     hashtbl_entities[12].onDeath = NULL;
+
+    hashtbl_entities[13].id = 13;
+    hashtbl_entities[13].tex = 7;
+    hashtbl_entities[13].tex2 = 9;
+    hashtbl_entities[13].name = "mathBlock";
+    hashtbl_entities[13].updatePos = &math_block;
+    hashtbl_entities[13].onHit = &active_math;
+    hashtbl_entities[13].onDeath = NULL;
 }
 
 fct_entry* get_entry(int k0) {
@@ -322,72 +330,6 @@ void align_to(FILE* ptr, char ch) {
     }
 }
 
-int is_neg0 = 1;
-int read_int(FILE* ptr) {
-    bool is_reading = false;
-    int buffer = 0;
-    int sign = 1;
-    char c = fgetc(ptr);
-    while(c != EOF) {
-        if(c == '-') {
-            sign = -1;
-        } else if((int)c >= 48 && (int)c <= 57) {
-            is_reading = true;
-            buffer = 10*buffer + (int)c - 48;
-        } else if(is_reading) {
-            if(sign == -1 && buffer == 0) {
-                is_neg0 = -1;
-            } else {
-                is_neg0 = 1;
-            }
-            return buffer*sign;
-        }
-        c = fgetc(ptr);
-    }
-    if(sign == -1 && buffer == 0) {
-        is_neg0 = -1;
-    } else {
-        is_neg0 = 1;
-    }
-    return buffer*sign;
-}
-
-char* read_string(FILE* ptr) {
-    char* res0 = malloc(sizeof(char)*52);
-    char c = fgetc(ptr);
-    int i = 0;
-    while(c != EOF && c == ' ') { // ignore initial spaces
-        c = fgetc(ptr);
-    }
-    while(c != EOF && c != ',') {
-        res0[i] = c;
-        i += 1;
-        c = fgetc(ptr);
-    }
-    res0[i] = '\0';
-    return res0;
-}
-
-double sign(double __x) {
-    if(__x >= 0.0) {
-        return 1.0;
-    }
-    return -1.0;
-}
-
-double read_float(FILE* ptr) {
-    int ent = read_int(ptr);
-    int sn0 = is_neg0;
-    int frac = read_int(ptr);
-    //printf("%d.%d; ", ent, frac);
-    if(ent != 0.0) {
-        return sn0*(ent/abs(ent))*(absf((double)ent) + ((double)frac)/(pow(10.0, (double)ln_baseN(frac, 10))));
-    } else {
-        //printf("%d, %d\n", ent, frac);
-        return sn0*((double)frac)/(pow(10.0, (double)ln_baseN(frac, 10)));
-    }
-}
-
 void parse_one_room(int id, char* filename) {
     //printf("    parsing %s...", filename);
     FILE* ptr = fopen(filename, "r");
@@ -670,6 +612,13 @@ void parse_one_room(int id, char* filename) {
 
             pool[id].area->ents[k]->metai1 = freq;
             pool[id].area->ents[k]->metai2 = offstate;
+        } else if(entry->id == 13) {
+            int defaultState = read_int(ptr);
+            double activeTime = read_float(ptr);
+
+            pool[id].area->ents[k]->metai1 = defaultState;
+            pool[id].area->ents[k]->metad1 = 0.0;
+            pool[id].area->ents[k]->metad2 = activeTime;
         } else {
             pool[id].area->ents[k]->metai3 = 0;
         }
diff --git a/src/generation.h b/src/generation.h
index 2e792f7..86cc637 100644
--- a/src/generation.h
+++ b/src/generation.h
@@ -2,18 +2,18 @@
 #define GEN_H
 
 typedef struct entry {
-    room* area ;
-    int weight ;
-} entry ;
+    room* area;
+    int weight;
+} entry;
 
 typedef struct fct_entry {
-    int id ;
-    char* name ;
-    void (*updatePos)(double x, double y, double z, double w, double h, double d, double hz_angle, double vt_angle, float dtime, entity* ent, cube_0* ret) ;    
+    int id;
+    char* name;
+    void (*updatePos)(double x, double y, double z, double w, double h, double d, double hz_angle, double vt_angle, float dtime, entity* ent, cube_0* ret);    
     // act as velocity function
-    void (*onHit)(float dtime, int* hp, int* dmg, entity* ent, cube_0* ret) ;
+    void (*onHit)(float dtime, int* hp, int* dmg, entity* ent, cube_0* ret);
     // triggers when object is hit
-    void (*onDeath)(float dtime) ;
+    void (*onDeath)(float dtime);
 
     // metadata //
     int metai1;
@@ -36,27 +36,24 @@ typedef struct fct_entry {
 
     int tex;
     int tex2;
-} fct_entry ;
+} fct_entry;
 
 extern int build_text_box(char* msg, int red, int green, int blue);
 extern int build_lock_box(char* msg, int red, int green, int blue);
 
 void init_ent_generator(int n);
 
-void copy_room(room* src, room* dest, int chx, int chy) ;
-void build_starting_chunk(int chx, int chy) ;
+void copy_room(room* src, room* dest, int chx, int chy);
+void build_starting_chunk(int chx, int chy);
 
-void init_hashtbl() ;
+void init_hashtbl();
 
-void get_number_blocks(int* ret_cubes, int* ret_tps, int* ret_ent, FILE* ptr) ;
-void align_to(FILE* ptr, char ch) ;
-int read_int(FILE* ptr) ;
-double read_float(FILE* ptr) ;
-char* read_string(FILE* ptr);
-void parse_one_room(int id, char* filename) ;
-void parse_rooms(int n_rooms, char* folder) ;
+void get_number_blocks(int* ret_cubes, int* ret_tps, int* ret_ent, FILE* ptr);
+void align_to(FILE* ptr, char ch);
+void parse_one_room(int id, char* filename);
+void parse_rooms(int n_rooms, char* folder);
 
-void generate_nearby_chunks(int render_dist) ;
+void generate_nearby_chunks(int render_dist);
 
 void free_pool();
 void free_ent_generator();
diff --git a/src/maeth.c b/src/maeth.c
index ebb6220..8d294b2 100644
--- a/src/maeth.c
+++ b/src/maeth.c
@@ -18,6 +18,8 @@
 #include "music.h"
 #include "maeth.h"
 
+mathRes mathResult;
+
 formula current_formula = NULL;
 // --------------------------------------------------------------------- //
 // between 1 and 20
@@ -83,15 +85,37 @@ void init_math_interfaces() {
     interface_link_button(mthInterface, mthExitSetting);
 }
 
+// [diff][operation]
+float operationDistr[20][4];
+
 void init_maeth() {
     mthAllow[0] = true;
     mthAllow[1] = true;
     mthAllow[2] = true;
+
+    mathResult = IDLE;
+
+    FILE* ptr = fopen("levels/math/distr.txt", "r");
+    for(int p = 0; p < 20; p++) {
+        for(int k = 0; k < 4/*number of operations*/; k++) {
+            operationDistr[p][k] = read_float(ptr);
+            printf("%f ", operationDistr[p][k]);
+        }
+        printf("\n");
+    }
+    printf("\n");
+    fclose(ptr);
 }
 
 ctype get_ctype() {
-    int r = rand()%3;
-    return (ctype)(1+r);
+    int r = rand()%100;
+    double cur = 0.0;
+    int i = 0;
+    while(cur <= (double)r) {
+        cur += operationDistr[mathDiff-1][i];
+        i += 1;
+    }
+    return (ctype)(i);
 }
 
 formula create_formula_aux(int leng) {
@@ -103,7 +127,7 @@ formula create_formula_aux(int leng) {
         newF->val = mthInf + rand()%(mthSup-mthInf);
     } else {
         newF->calc1 = create_formula_aux(leng/2);
-        newF->calc2 = create_formula_aux(leng/2);
+        newF->calc2 = create_formula_aux(leng/2+(leng%2==1));
         newF->operation = get_ctype();
         newF->val = 0; // irrelevant
     }
@@ -215,6 +239,7 @@ void generate_new_formula() {
 }
 
 void the_actual_main_math_function(GLFWwindow* window) {
+    mathResult = IN_MATH;
     generate_new_formula();
     int correct_answer = solve_formula(current_formula);
     while(correct_answer == 0) {
@@ -227,7 +252,10 @@ void the_actual_main_math_function(GLFWwindow* window) {
     bool solved = false;
     int player_answer = 0;
     int sign = 1;
-    bool mPress = false;
+    bool mPress[12];
+    for(int k = 0; k < 12; k++) {
+        mPress[k] = false;
+    }
     float ratio = 0.0f;
     play_sound("sound/audio/kahoot_theme.wav");
     while(!solved && ratio < 1.0f) {
@@ -238,46 +266,64 @@ void the_actual_main_math_function(GLFWwindow* window) {
 
         // ----------------------------------------------------------- //
         if(glfwGetKey(window, GLFW_KEY_0) == GLFW_PRESS) {
-            if(!mPress) {player_answer = 10*player_answer  ;}
-            mPress = true;
-        } else if(glfwGetKey(window, GLFW_KEY_1) == GLFW_PRESS) {
-            if(!mPress) {player_answer = 10*player_answer+1;}
-            mPress = true;
-        } else if(glfwGetKey(window, GLFW_KEY_2) == GLFW_PRESS) {
-            if(!mPress) {player_answer = 10*player_answer+2;}
-            mPress = true;
-        } else if(glfwGetKey(window, GLFW_KEY_3) == GLFW_PRESS) {
-            if(!mPress) {player_answer = 10*player_answer+3;}
-            mPress = true;
-        } else if(glfwGetKey(window, GLFW_KEY_4) == GLFW_PRESS) {
-            if(!mPress) {player_answer = 10*player_answer+4;}
-            mPress = true;
-        } else if(glfwGetKey(window, GLFW_KEY_5) == GLFW_PRESS) {
-            if(!mPress) {player_answer = 10*player_answer+5;}
-            mPress = true;
-        } else if(glfwGetKey(window, GLFW_KEY_6) == GLFW_PRESS) {
-            if(!mPress) {player_answer = 10*player_answer+6;}
-            mPress = true;
-        } else if(glfwGetKey(window, GLFW_KEY_7) == GLFW_PRESS) {
-            if(!mPress) {player_answer = 10*player_answer+7;}
-            mPress = true;
-        } else if(glfwGetKey(window, GLFW_KEY_8) == GLFW_PRESS) {
-            if(!mPress) {player_answer = 10*player_answer+8;}
-            mPress = true;
-        } else if(glfwGetKey(window, GLFW_KEY_9) == GLFW_PRESS) {
-            if(!mPress) {player_answer = 10*player_answer+9;}
-            mPress = true;
-        } else
+            if(!mPress[0]) {player_answer = 10*player_answer  ;}
+            mPress[0] = true;
+        } else {mPress[0] = false;}
+
+        if(glfwGetKey(window, GLFW_KEY_1) == GLFW_PRESS) {
+            if(!mPress[1]) {player_answer = 10*player_answer+1;}
+            mPress[1] = true;
+        } else {mPress[1] = false;}
+
+        if(glfwGetKey(window, GLFW_KEY_2) == GLFW_PRESS) {
+            if(!mPress[2]) {player_answer = 10*player_answer+2;}
+            mPress[2] = true;
+        } else {mPress[2] = false;}
+
+        if(glfwGetKey(window, GLFW_KEY_3) == GLFW_PRESS) {
+            if(!mPress[3]) {player_answer = 10*player_answer+3;}
+            mPress[3] = true;
+        } else {mPress[3] = false;}
+
+        if(glfwGetKey(window, GLFW_KEY_4) == GLFW_PRESS) {
+            if(!mPress[4]) {player_answer = 10*player_answer+4;}
+            mPress[4] = true;
+        } else {mPress[4] = false;}
+
+        if(glfwGetKey(window, GLFW_KEY_5) == GLFW_PRESS) {
+            if(!mPress[5]) {player_answer = 10*player_answer+5;}
+            mPress[5] = true;
+        } else {mPress[5] = false;}
+
+        if(glfwGetKey(window, GLFW_KEY_6) == GLFW_PRESS) {
+            if(!mPress[6]) {player_answer = 10*player_answer+6;}
+            mPress[6] = true;
+        } else {mPress[6] = false;}
+
+        if(glfwGetKey(window, GLFW_KEY_7) == GLFW_PRESS) {
+            if(!mPress[7]) {player_answer = 10*player_answer+7;}
+            mPress[7] = true;
+        } else {mPress[7] = false;}
+
+        if(glfwGetKey(window, GLFW_KEY_8) == GLFW_PRESS) {
+            if(!mPress[8]) {player_answer = 10*player_answer+8;}
+            mPress[8] = true;
+        } else {mPress[8] = false;}
+
+        if(glfwGetKey(window, GLFW_KEY_9) == GLFW_PRESS) {
+            if(!mPress[9]) {player_answer = 10*player_answer+9;}
+            mPress[9] = true;
+        } else {mPress[9] = false;}
         // ----------------------------------------------------------- //
         if(glfwGetKey(window, GLFW_KEY_ENTER) == GLFW_PRESS) {
-            if(!mPress) {sign *= (-1);}
-            mPress = true;
-        } else if(glfwGetKey(window, GLFW_KEY_BACKSPACE) == GLFW_PRESS) {
-            if(!mPress) {player_answer /= 10;}
-            mPress = true;
-        } else {
-            mPress = false;
-        }
+            if(!mPress[10]) {sign *= (-1);}
+            mPress[10] = true;
+        } else {mPress[10] = false;}
+        
+        if(glfwGetKey(window, GLFW_KEY_BACKSPACE) == GLFW_PRESS) {
+            if(!mPress[11]) {player_answer /= 10;}
+            mPress[11] = true;
+        } else {mPress[11] = false;}
         // ----------------------------------------------------------- //
         if(glfwGetKey(window, GLFW_KEY_SPACE) == GLFW_PRESS) {
             player_answer = correct_answer;
@@ -306,7 +352,9 @@ void the_actual_main_math_function(GLFWwindow* window) {
     reset_music();
     if(solved) {
         player_hp += 100;
+        mathResult = SUCCESS;
     } else {
         player_hp -= mathDmg*mathDoDmg;
+        mathResult = FAILURE;
     }
 }
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
index 15df622..47af833 100644
--- a/src/main.c
+++ b/src/main.c
@@ -45,11 +45,9 @@ unsigned int textures[16];
 bool paused = false;
 bool hardReset = true;
 
-bool math_test = true;
-int math_test_cd = 10;
-
 double oldx, oldy, oldz;
 int oldchx, oldchy;
+
 void reset_everything(GLFWwindow *window, int count, char* folder) {
     oldx = camx;
     oldy = camy;
@@ -613,6 +611,8 @@ int main_alt() {
     glUseProgram(shaderProgram);
     glUniform1i(loc_tex, 0);
 
+    mathSignal = true;
+
     while(!glfwWindowShouldClose(window) && player_hp > 0) {
         // input
         // -----
@@ -651,10 +651,7 @@ int main_alt() {
         gl_drawButtonTimers(shaderProgramR);
 
         bool isinmenu = isInMenu(window, shaderProgramR);
-        if(!isinmenu) {
-            math_test_cd = max(math_test_cd-1, 0);
-        }
-        if(!isinmenu && !math_test) {
+        if(!isinmenu && !mathSignal) {
             processInput(window, delta);
             if(!paused) {
                 if(gamemode == 0) {
@@ -670,11 +667,16 @@ int main_alt() {
                 gl_drawString(shaderProgramR, "press u to resume", 0.0f, -0.1f, 0.08f, 128, 128, 255, 0.005f, 0);
             }
         }
-        if(math_test_cd == 0 && math_test) {
-            glfwSwapBuffers(window);
-            glfwPollEvents();
-            the_actual_main_math_function(window);
-            math_test = false;
+
+        if(!isinmenu && mathSignal) {
+            mathSigCD -= 1;
+            if(mathSigCD == 0) {
+                mathSigCD = 4;
+                mathSignal = false;
+                glfwSwapBuffers(window);
+                glfwPollEvents();
+                the_actual_main_math_function(window);
+            }
         }
 
         finish = clock();
diff --git a/src/move.c b/src/move.c
index 4f5b4ff..3ef35ef 100644
--- a/src/move.c
+++ b/src/move.c
@@ -69,6 +69,9 @@ bool buttonSwitch[16];
 float buttonTimes[16];
 float buttonMaxT[16];
 
+bool mathSignal;
+int mathSigCD;
+
 void init_csts() {
     camx = 2.0;
     camy = 5.0;
@@ -91,6 +94,9 @@ void init_csts() {
     draw_type = 0;
     fade_dmg = 0;
 
+    mathSignal = false;
+    mathSigCD = 4;
+
     for(int k = 0; k < 16; k++) {
         buttonTimes[k] = 0.0f;
         buttonSwitch[k] = false;
@@ -275,7 +281,8 @@ bool is_colliding(float dtime) {
                     //printf("%d -> %d\n", k, vstd->ents[k]->entity_type);
                     if(    
                         (vstd->ents[k]->entity_type != 12 || xor(buttonSwitch[vstd->ents[k]->metai1], vstd->ents[k]->metai2)) &&
-                        (vstd->ents[k]->entity_type != 9 || vstd->ents[k]->metai1)
+                        (vstd->ents[k]->entity_type != 9  || vstd->ents[k]->metai1) &&
+                        (vstd->ents[k]->entity_type != 13 || (vstd->ents[k]->metad1 == 0.0 || vstd->ents[k]->metai1 == 0))
                     ) {
                         double dist = distance_pt_cube_0_3d_infinite(camx-2*room_width*w, camy, camz-2*room_depth*h, vstd->ents[k]->pos);
                         //printf("%lf vs %lf\n", dist, min_dist);
@@ -299,7 +306,12 @@ bool is_colliding(float dtime) {
                             if(exists && updateForces && vstd->ents[k]->entity_type != 0) {
                                 updateF(vstd->ents[k]->pos, (double)dtime);
                             }
-                            if(exists && (vstd->ents[k]->entity_type == 9 || vstd->ents[k]->entity_type == 4 || vstd->ents[k]->entity_type == 5)) {
+                            if(exists && (
+                                vstd->ents[k]->entity_type == 13 || 
+                                vstd->ents[k]->entity_type == 9 || 
+                                vstd->ents[k]->entity_type == 4 || 
+                                vstd->ents[k]->entity_type == 5
+                            )) {
                                 is_clipping = false;
                             }
                             globalCollision = true;
diff --git a/src/structure.h b/src/structure.h
index cc1af00..db87f9b 100644
--- a/src/structure.h
+++ b/src/structure.h
@@ -100,6 +100,8 @@ struct hashtbl_0 {
 typedef struct hashtbl_0 hashtbl_0;
 typedef hashtbl_0* hashtbl;
 
+typedef enum mathRes {IDLE, IN_MATH, SUCCESS, FAILURE} mathRes;
+
 // ------------------------------------------------ //
 
 extern double sim_time;
@@ -198,4 +200,8 @@ extern int mthInterface;
 extern int welcome_start_i;
 extern int settings_i;
 
+extern bool mathSignal;
+extern int mathSigCD;
+extern mathRes mathResult;
+
 #endif
\ No newline at end of file
diff --git a/templates/room_0 b/templates/room_0
index 4c3c09a..fe1fea2 100644
--- a/templates/room_0
+++ b/templates/room_0
@@ -1,5 +1,5 @@
 Blocks :
-[0.0, 0.0, 0.0, 10.0, 1.0, 10.0, 0.0, 0.0, 255, 255, 255]
+[-5.0, 0.0, -5.0, 15.0, 1.0, 15.0, 0.0, 0.0, 255, 255, 255]
 [0.0, 9.0, 0.0, 10.0, 1.0, 10.0, 0.0, 0.0, 255, 255, 255]
 [0.0, 1.0, 0.0, 1.0, 8.0, 1.0, 0.0, 0.0, 128, 128, 128]
 [9.0, 1.0, 0.0, 1.0, 8.0, 1.0, 0.0, 0.0, 128, 128, 128]
@@ -16,6 +16,7 @@ Entities :
 [-1.0, 13.0, -1.0, 2.0, 2.0, 2.0, 0.0, 0.0, 255, 255, 255, 1, 0, 9, 1.5, 1.5, 0]
 [-1.0, 16.0, -1.0, 2.0, 1.0, 2.0, 0.0, 0.0, 128, 128, 128, 1, 0, 11, 4, 1.75]
 [-1.0, 19.0, -1.0, 2.0, 1.0, 2.0, 0.0, 0.0, 128, 128, 128, 1, 0, 12, 4, 1]
+[-5.0, 1.0 , -5.0, 1.0, 1.0, 1.0, 0.0, 0.0, 222, 222, 222, 1, 0, 13, 1, 1.0]
 
 Weight :
 50