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Dependencies:   mbed MotionSensor

Entity/Snake/Snake.cpp@22:7abf4581bc9b, 2019-04-25 (annotated)

Committer:
el17sm
Date:
Thu Apr 25 05:53:30 2019 +0000
Revision:
22:7abf4581bc9b
Parent:
18:3c030560e31d
Child:
23:5a8f75e93508
Snakes 90% done, need to change entity to group of entity collision into repulsion

Who changed what in which revision?

UserRevisionLine numberNew contents of line
el17sm 16:ddb203a74dfc 1 #include "Snake.h"
el17sm 16:ddb203a74dfc 2 #include "math.h"
el17sm 16:ddb203a74dfc 3 #include <complex>
el17sm 16:ddb203a74dfc 4
el17sm 17:99e533f7f2fb 5 // Constructor
el17sm 22:7abf4581bc9b 6 Snake::Snake(float pos_x, float pos_y)
el17sm 22:7abf4581bc9b 7 {
el17sm 16:ddb203a74dfc 8 moving = true;
el17sm 17:99e533f7f2fb 9 _prev_face = 0;
el17sm 16:ddb203a74dfc 10 face = 0;
el17sm 16:ddb203a74dfc 11 hp = 4;
el17sm 16:ddb203a74dfc 12 hitbox.width = 6;
el17sm 16:ddb203a74dfc 13 hitbox.height = 5;
el17sm 16:ddb203a74dfc 14 position.x = pos_x;
el17sm 16:ddb203a74dfc 15 position.y = pos_y;
el17sm 16:ddb203a74dfc 16 sprite_size.width = 6;
el17sm 16:ddb203a74dfc 17 sprite_size.height = 9;
el17sm 16:ddb203a74dfc 18 sprite_size.offset_x = 0;
el17sm 16:ddb203a74dfc 19 sprite_size.offset_y = 4;
el17sm 16:ddb203a74dfc 20 frame.count = 0;
el17sm 16:ddb203a74dfc 21 frame.number = 0;
el17sm 16:ddb203a74dfc 22 frame.max = 6;
el17sm 17:99e533f7f2fb 23 velocity = 0;
el17sm 17:99e533f7f2fb 24 _velocity_index = 0;
el17sm 17:99e533f7f2fb 25 }
el17sm 17:99e533f7f2fb 26 // Member Function
el17sm 22:7abf4581bc9b 27 void Snake::update_prev_face()
el17sm 22:7abf4581bc9b 28 {
el17sm 22:7abf4581bc9b 29 _prev_face = face;
el17sm 22:7abf4581bc9b 30 }
el17sm 17:99e533f7f2fb 31
el17sm 17:99e533f7f2fb 32 // Member Mutator
el17sm 22:7abf4581bc9b 33 void Snake::update_hitbox(int hitbox_width, int hitbox_height, int hitbox_offset_x, int hitbox_offset_y, int sprite_size_width, int sprite_size_height, int sprite_size_offset_x, int sprite_size_offset_y, int max_frame) // Offset, Hitbox and Frame Count update
el17sm 22:7abf4581bc9b 34 {
el17sm 22:7abf4581bc9b 35 if (_prev_face != face) {
el17sm 18:3c030560e31d 36 frame.number = 0;
el17sm 17:99e533f7f2fb 37 hitbox.width = sprite_size.offset_y;
el17sm 17:99e533f7f2fb 38 hitbox.height = hitbox_height;
el17sm 17:99e533f7f2fb 39 sprite_size.width = sprite_size_width;
el17sm 17:99e533f7f2fb 40 sprite_size.height = sprite_size_height;
el17sm 17:99e533f7f2fb 41 sprite_size.offset_x = sprite_size_offset_x;
el17sm 17:99e533f7f2fb 42 sprite_size.offset_y = sprite_size_offset_y;
el17sm 18:3c030560e31d 43 frame.max = max_frame;
el17sm 17:99e533f7f2fb 44 }
el17sm 16:ddb203a74dfc 45 }
el17sm 16:ddb203a74dfc 46
el17sm 17:99e533f7f2fb 47 // Functions
el17sm 22:7abf4581bc9b 48 void Snake::move(float player_x, float player_y)
el17sm 22:7abf4581bc9b 49 {
el17sm 16:ddb203a74dfc 50 std::complex<double> pos_diff(player_x - position.x, player_y - position.y); // defining difference in position as a vector
el17sm 17:99e533f7f2fb 51 velocity = velocity_pattern[_velocity_index]; // Creating slithering effect, changing velocity of movement
el17sm 17:99e533f7f2fb 52 update_prev_face();
el17sm 22:7abf4581bc9b 53
el17sm 16:ddb203a74dfc 54 // Setting Face
el17sm 17:99e533f7f2fb 55 if (_velocity_index == 0) {
el17sm 16:ddb203a74dfc 56 if (abs(pos_diff.real()) > abs(pos_diff.imag())) {
el17sm 16:ddb203a74dfc 57 if (pos_diff.real() > 0) {
el17sm 16:ddb203a74dfc 58 face = 1;
el17sm 22:7abf4581bc9b 59 } else {
el17sm 16:ddb203a74dfc 60 face = 3;
el17sm 16:ddb203a74dfc 61 }
el17sm 22:7abf4581bc9b 62 } else {
el17sm 16:ddb203a74dfc 63 if (pos_diff.imag() > 0) {
el17sm 16:ddb203a74dfc 64 face = 0;
el17sm 22:7abf4581bc9b 65 } else {
el17sm 16:ddb203a74dfc 66 face = 2;
el17sm 16:ddb203a74dfc 67 }
el17sm 16:ddb203a74dfc 68 }
el17sm 16:ddb203a74dfc 69 }
el17sm 22:7abf4581bc9b 70
el17sm 17:99e533f7f2fb 71 // Movement
el17sm 22:7abf4581bc9b 72 if (face == 0) {
el17sm 16:ddb203a74dfc 73 position.y += velocity;
el17sm 18:3c030560e31d 74 update_hitbox(4, 7, 0, 0, 6, 12, 1, 6, 6);
el17sm 22:7abf4581bc9b 75 } else if (face == 1) {
el17sm 16:ddb203a74dfc 76 position.x += velocity;
el17sm 18:3c030560e31d 77 update_hitbox(7, 4, 0, 0, 12, 7, 3, 4, 4);
el17sm 22:7abf4581bc9b 78 } else if (face == 2) {
el17sm 16:ddb203a74dfc 79 position.y -= velocity;
el17sm 18:3c030560e31d 80 update_hitbox(4, 7, 0, 0, 6, 12, 1, 5, 6);
el17sm 22:7abf4581bc9b 81 } else if (face == 3) {
el17sm 16:ddb203a74dfc 82 position.x -= velocity;
el17sm 18:3c030560e31d 83 update_hitbox(7, 4, 0, 0, 12, 7, 2, 4, 4);
el17sm 16:ddb203a74dfc 84 }
el17sm 22:7abf4581bc9b 85
el17sm 16:ddb203a74dfc 86 undo_move_x(matrix_collision_test(position.x, prev_pos.y, 0));
el17sm 16:ddb203a74dfc 87 undo_move_y(matrix_collision_test(prev_pos.x, position.y, 0));
el17sm 22:7abf4581bc9b 88
el17sm 22:7abf4581bc9b 89 frame.count++;
el17sm 22:7abf4581bc9b 90 if (frame.count >= 5) {
el17sm 16:ddb203a74dfc 91 frame.count = 0;
el17sm 22:7abf4581bc9b 92 _velocity_index++;
el17sm 22:7abf4581bc9b 93 frame.number++;
el17sm 22:7abf4581bc9b 94 if (_velocity_index >= 6) {
el17sm 17:99e533f7f2fb 95 _velocity_index = 0;
el17sm 17:99e533f7f2fb 96 }
el17sm 22:7abf4581bc9b 97 if (frame.number >= frame.max) {
el17sm 17:99e533f7f2fb 98 frame.number = 0;
el17sm 17:99e533f7f2fb 99 }
el17sm 16:ddb203a74dfc 100 }
el17sm 16:ddb203a74dfc 101 }
el17sm 16:ddb203a74dfc 102
el17sm 22:7abf4581bc9b 103 int * Snake::get_frame()
el17sm 22:7abf4581bc9b 104 {
el17sm 17:99e533f7f2fb 105 if(face == 0) {
el17sm 17:99e533f7f2fb 106 return (int *) sprite_snake_y[1][frame.number];
el17sm 22:7abf4581bc9b 107 } else if(face == 1) {
el17sm 17:99e533f7f2fb 108 return (int *) sprite_snake_x[0][frame.number];
el17sm 22:7abf4581bc9b 109 } else if(face == 2) {
el17sm 17:99e533f7f2fb 110 return (int *) sprite_snake_y[0][frame.number];
el17sm 22:7abf4581bc9b 111 } else if(face == 3) {
el17sm 17:99e533f7f2fb 112 return (int *) sprite_snake_x[1][frame.number];
el17sm 17:99e533f7f2fb 113 }
el17sm 17:99e533f7f2fb 114 return 0;
el17sm 16:ddb203a74dfc 115 }