Diff: GameObjects/Snake/Snake.cpp

Revision:

51:387249f9b333

Parent:

44:cd10d07ea1e5

Child:

53:527cf297b088

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GameObjects/Snake/Snake.cpp	Fri Apr 26 18:30:25 2019 +0000
@@ -0,0 +1,273 @@
+#include "Snake.h"
+
+Snake::Snake()
+{
+
+}
+
+Snake::~Snake()
+{
+
+}
+
+//The Snake Sprite.
+int snake_sprite[3][3] = {
+    {0,1,0},
+    {1,0,1},
+    {0,1,0},
+};
+
+void Snake::init()
+{
+    _speed = 1;// change this according to the options selected
+    m = 0; //Variable used to allow a starting location for the player.
+}
+
+
+void Snake::draw(Gamepad &pad, N5110 &lcd, int length, int level)
+{
+    _length = length;
+    if(m == 0){
+        _x[0] = WIDTH/2;  //Spawns player sprite near the middle of the screen.
+        _y[0] = HEIGHT - 3;
+        
+        for(int i=0; i<=13; i++)  {
+            _x[i+1] = _x[i];
+            _y[i+1] = _y[i] - 3;
+            b[i] = 1;
+        }
+        b[14] = 1;
+        m = m+1;
+    }
+    //printf("SPRITE %d %d \n", _x[0], _y[0]); 
+    
+    for(int a=1; a<=10; a++)  {
+        if(_length == a)  {
+            for(int i=0; i<=a-1; i++)  {
+                lcd.drawSprite(_x[i],_y[i],3,3,(int *)snake_sprite); //Function used to draw the sprite.
+            }
+        }
+    }
+    if(_length >= 10) {
+        for(int a=1; a<=10; a++)  {
+            for(int i=0; i<=a-1; i++)  {
+                lcd.drawSprite(_x[i],_y[i],3,3,(int *)snake_sprite); //Function used to draw the sprite.
+            }
+        }
+    }
+}
+
+
+Vector2D Snake::get_pos()
+{
+    for(int i=1; i<=10; i++)  {
+        if(_length == i)  {
+            Vector2D snakepos = {_x[i-1],_y[i-1]}; //Obtains the snake position.
+            return snakepos;
+        }
+    }
+    if(_length >= 10)  {
+            Vector2D snakepos = {_x[9],_y[9]}; //Obtains the snake position.
+            return snakepos;
+    }
+    Vector2D snakepos = {-20,-20}; //Obtains the snake position.
+    return snakepos;
+    //printf("snakepos from player = %f %f \n", snakepos.x, snakepos.y);
+}
+
+Vector2D Snake::get_pos_before1()  //this sends data of following sprites.
+{
+    for(int i=2; i<=10; i++)  {
+        if(_length == i)  {
+            Vector2D snakepos_b1 = {_x[i-2],_y[i-2]}; //Obtains the snake position.
+            return snakepos_b1;
+        }
+    }
+    if(_length >= 10)  {
+            Vector2D snakepos_b1 = {_x[8],_y[8]}; //Obtains the snake position.
+            return snakepos_b1;
+    }
+    Vector2D snakepos_b1 = {-20,-20}; //Obtains the snake position.
+    return snakepos_b1;
+    //printf("snakepos_b1 from player = %f %f \n", snakepos_b1.x, snakepos_b1.y);
+}
+
+Vector2D Snake::get_pos_before2()  //this sends data of following sprites.
+{
+    for(int i=3; i<=10; i++)  {
+        if(_length == i)  {
+            Vector2D snakepos_b2 = {_x[i-3],_y[i-3]}; //Obtains the snake position.
+            return snakepos_b2;
+        }
+    }
+    if(_length >= 10)  {
+            Vector2D snakepos_b2 = {_x[7],_y[7]}; //Obtains the snake position.
+            return snakepos_b2;
+    }
+    Vector2D snakepos_b2 = {-20,-20}; //Obtains the snake position.
+    return snakepos_b2;
+    //printf("snakepos_b2 from player = %f %f \n", snakepos_b2.x, snakepos_b2.y);
+}
+
+Vector2D Snake::get_pos_before3()  //this sends data of following sprites.
+{
+    for(int i=4; i<=10; i++)  {
+        if(_length == i)  {
+            Vector2D snakepos_b3 = {_x[i-4],_y[i-4]}; //Obtains the snake position.
+            return snakepos_b3;
+        }
+    }
+    if(_length >= 10)  {
+            Vector2D snakepos_b3 = {_x[6],_y[6]}; //Obtains the snake position.
+            return snakepos_b3;
+    }
+    Vector2D snakepos_b3 = {-20,-20}; //Obtains the snake position.
+    return snakepos_b3;
+    //printf("snakepos_b3 from player = %f %f \n", snakepos_b3.x, snakepos_b3.y);
+}
+
+Vector2D Snake::get_pos_before4()  //this sends data of following sprites.
+{
+    for(int i=5; i<=10; i++)  {
+        if(_length == i)  {
+            Vector2D snakepos_b4 = {_x[i-5],_y[i-5]}; //Obtains the snake position.
+            return snakepos_b4;
+        }
+    }
+    if(_length >= 10)  {
+            Vector2D snakepos_b4 = {_x[5],_y[5]}; //Obtains the snake position.
+            return snakepos_b4;
+    }
+    Vector2D snakepos_b4 = {-20,-20}; //Obtains the snake position.
+    return snakepos_b4;
+    //printf("snakepos_b4 from player = %f %f \n", snakepos_b4.x, snakepos_b4.y);
+}
+
+Vector2D Snake::get_pos_before5()  //this sends data of following sprites.
+{
+    for(int i=6; i<=10; i++)  {
+        if(_length == i)  {
+            Vector2D snakepos_b5 = {_x[i-6],_y[i-6]}; //Obtains the snake position.
+            return snakepos_b5;
+        }
+    }
+    if(_length >= 10)  {
+            Vector2D snakepos_b5 = {_x[4],_y[4]}; //Obtains the snake position.
+            return snakepos_b5;
+    }
+    Vector2D snakepos_b5 = {-20,-20}; //Obtains the snake position.
+    return snakepos_b5;
+    //printf("snakepos_b5 from player = %f %f \n", snakepos_b5.x, snakepos_b5.y);
+}
+
+Vector2D Snake::get_pos_before6()  //this sends data of following sprites.
+{
+    for(int i=7; i<=10; i++)  {
+        if(_length == i)  {
+            Vector2D snakepos_b6 = {_x[i-7],_y[i-7]}; //Obtains the snake position.
+            return snakepos_b6;
+        }
+    }
+    if(_length >= 10)  {
+            Vector2D snakepos_b6 = {_x[3],_y[3]}; //Obtains the snake position.
+            return snakepos_b6;
+    }
+    Vector2D snakepos_b6 = {-20,-20}; //Obtains the snake position.
+    return snakepos_b6;
+    //printf("snakepos_b6 from player = %f %f \n", snakepos_b6.x, snakepos_b6.y);
+}
+
+Vector2D Snake::get_pos_before7()  //this sends data of following sprites.
+{
+    for(int i=8; i<=10; i++)  {
+        if(_length == i)  {
+            Vector2D snakepos_b7 = {_x[i-8],_y[i-8]}; //Obtains the snake position.
+            return snakepos_b7;
+        }
+    }
+    if(_length >= 10)  {
+        Vector2D snakepos_b7 = {_x[2],_y[2]}; //Obtains the snake position.
+        return snakepos_b7;
+    }
+    Vector2D snakepos_b7 = {-20,-20}; //Obtains the snake position.
+    return snakepos_b7;
+    //printf("snakepos_b7 from player = %f %f \n", snakepos_b7.x, snakepos_b7.y);
+}
+
+Vector2D Snake::get_pos_before8()  //this sends data of following sprites.
+{
+    for(int i=9; i<=10; i++)  {
+        if(_length == i)  {
+            Vector2D snakepos_b8 = {_x[i-9],_y[i-9]}; //Obtains the snake position.
+            return snakepos_b8;
+        }
+    }
+    if(_length >= 10)  {
+        Vector2D snakepos_b8 = {_x[1],_y[1]}; //Obtains the snake position.
+        return snakepos_b8;
+    }
+    Vector2D snakepos_b8 = {-20,-20}; //Obtains the snake position.
+    return snakepos_b8;
+    //printf("snakepos_b8 from player = %f %f \n", snakepos_b8.x, snakepos_b8.y);
+}
+
+Vector2D Snake::get_pos_before9()  //this sends data of following sprites.
+{
+    for(int i=10; i<=10; i++)  {
+        if(_length == i)  {
+            Vector2D snakepos_b9 = {_x[i-10],_y[i-10]}; //Obtains the snake position.
+            return snakepos_b9;
+        }
+    }
+    if(_length >= 10)  {
+        Vector2D snakepos_b9 = {_x[0],_y[0]}; //Obtains the snake position.
+        return snakepos_b9;
+    }
+    Vector2D snakepos_b9 = {-20,-20}; //Obtains the snake position.
+    return snakepos_b9;
+    //printf("snakepos_b9 from player = %f %f \n", snakepos_b9.x, snakepos_b9.y);
+}
+
+void Snake::update(Direction d, int* b)
+{
+    if(_length >= 10) {_length = 10;} //to stop the snake length virtually at 10 when it goes past it.
+    
+    //this makes all of the snake beeds chained together by making the lower ones drag towards where the top one was in the previous loop
+    //the b[i] makes sure that the snake beed doesn't move if that beed is deactivated by colliding with a barrier. b[i] also signifies the specific beed number by i.
+    for(int i=0; i<=13; i++)  {
+        if((_length > i+1)&&(_x[i] != _x[i+1]))  {
+            if ((_x[i] > _x[i+1])&&(b[i+1] == 1)&&(b[i] == 1))  {
+                _x[i]-=_speed;    
+            }
+            if ((_x[i] < _x[i+1])&&(b[i+1] == 1)&&(b[i] == 1))  {
+                _x[i]+=_speed;    
+            }
+        }
+    }
+   //this makes the controls of W/E directions only exclusive to the top beed in the snake
+    for(int i=14; i>=0; i--)  {
+            if((_length == i+1)&&(b[i] == 1))  {
+                
+                if (d == E) {_x[i]+= _speed;}
+                
+                if (d == W) {_x[i]-= _speed;}
+                
+            }
+    }
+
+// the following makes sure that when the length is increased, the snake stays where it was when it ate food.
+
+    for(int i=2; i<=15; i++)  {
+            
+            if(_length < i)  {_x[i-1] = _x[i-2];}
+    }
+    
+    //Limits set so that the snake does not travel off the screen.
+    for(int i=0; i<=14; i++)  {
+            
+            if (_x[i] <= 0) {_x[i] = 0;}
+            
+            if (_x[i] > 81) {_x[i] = 81;}
+    }
+}
+