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Dependencies:   mbed MotionSensor

Entity/Snake/Snake.cpp@18:3c030560e31d, 2019-04-25 (annotated)

Committer:
el17sm
Date:
Thu Apr 25 03:32:36 2019 +0000
Revision:
18:3c030560e31d
Parent:
17:99e533f7f2fb
Child:
22:7abf4581bc9b
Added max frame mutation in update_hitbox in snake class;

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 16:ddb203a74dfc 6 Snake::Snake(float pos_x, float pos_y) {
el17sm 16:ddb203a74dfc 7 moving = true;
el17sm 17:99e533f7f2fb 8 _prev_face = 0;
el17sm 16:ddb203a74dfc 9 face = 0;
el17sm 16:ddb203a74dfc 10 hp = 4;
el17sm 16:ddb203a74dfc 11 hitbox.width = 6;
el17sm 16:ddb203a74dfc 12 hitbox.height = 5;
el17sm 16:ddb203a74dfc 13 position.x = pos_x;
el17sm 16:ddb203a74dfc 14 position.y = pos_y;
el17sm 16:ddb203a74dfc 15 sprite_size.width = 6;
el17sm 16:ddb203a74dfc 16 sprite_size.height = 9;
el17sm 16:ddb203a74dfc 17 sprite_size.offset_x = 0;
el17sm 16:ddb203a74dfc 18 sprite_size.offset_y = 4;
el17sm 16:ddb203a74dfc 19 frame.count = 0;
el17sm 16:ddb203a74dfc 20 frame.number = 0;
el17sm 16:ddb203a74dfc 21 frame.max = 6;
el17sm 17:99e533f7f2fb 22 velocity = 0;
el17sm 17:99e533f7f2fb 23 _velocity_index = 0;
el17sm 17:99e533f7f2fb 24 }
el17sm 17:99e533f7f2fb 25 // Member Function
el17sm 17:99e533f7f2fb 26 void Snake::update_prev_face(){_prev_face = face;}
el17sm 17:99e533f7f2fb 27
el17sm 17:99e533f7f2fb 28 // Member Mutator
el17sm 18:3c030560e31d 29 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 17:99e533f7f2fb 30 if (_prev_face != face){
el17sm 18:3c030560e31d 31 frame.number = 0;
el17sm 17:99e533f7f2fb 32 hitbox.width = sprite_size.offset_y;
el17sm 17:99e533f7f2fb 33 hitbox.height = hitbox_height;
el17sm 17:99e533f7f2fb 34 sprite_size.width = sprite_size_width;
el17sm 17:99e533f7f2fb 35 sprite_size.height = sprite_size_height;
el17sm 17:99e533f7f2fb 36 sprite_size.offset_x = sprite_size_offset_x;
el17sm 17:99e533f7f2fb 37 sprite_size.offset_y = sprite_size_offset_y;
el17sm 18:3c030560e31d 38 frame.max = max_frame;
el17sm 17:99e533f7f2fb 39 }
el17sm 16:ddb203a74dfc 40 }
el17sm 16:ddb203a74dfc 41
el17sm 17:99e533f7f2fb 42 // Functions
el17sm 16:ddb203a74dfc 43 void Snake::move(float player_x, float player_y) {
el17sm 16:ddb203a74dfc 44 std::complex<double> pos_diff(player_x - position.x, player_y - position.y); // defining difference in position as a vector
el17sm 17:99e533f7f2fb 45 velocity = velocity_pattern[_velocity_index]; // Creating slithering effect, changing velocity of movement
el17sm 17:99e533f7f2fb 46 update_prev_face();
el17sm 16:ddb203a74dfc 47
el17sm 16:ddb203a74dfc 48 // Setting Face
el17sm 17:99e533f7f2fb 49 if (_velocity_index == 0) {
el17sm 16:ddb203a74dfc 50 if (abs(pos_diff.real()) > abs(pos_diff.imag())) {
el17sm 16:ddb203a74dfc 51 if (pos_diff.real() > 0) {
el17sm 16:ddb203a74dfc 52 face = 1;
el17sm 16:ddb203a74dfc 53 }
el17sm 16:ddb203a74dfc 54 else {
el17sm 16:ddb203a74dfc 55 face = 3;
el17sm 16:ddb203a74dfc 56 }
el17sm 16:ddb203a74dfc 57 }
el17sm 16:ddb203a74dfc 58 else {
el17sm 16:ddb203a74dfc 59 if (pos_diff.imag() > 0) {
el17sm 16:ddb203a74dfc 60 face = 0;
el17sm 16:ddb203a74dfc 61 }
el17sm 16:ddb203a74dfc 62 else {
el17sm 16:ddb203a74dfc 63 face = 2;
el17sm 16:ddb203a74dfc 64 }
el17sm 16:ddb203a74dfc 65 }
el17sm 16:ddb203a74dfc 66 }
el17sm 16:ddb203a74dfc 67
el17sm 17:99e533f7f2fb 68 // Movement
el17sm 16:ddb203a74dfc 69 if (face == 0){
el17sm 16:ddb203a74dfc 70 position.y += velocity;
el17sm 18:3c030560e31d 71 update_hitbox(4, 7, 0, 0, 6, 12, 1, 6, 6);
el17sm 16:ddb203a74dfc 72 }
el17sm 16:ddb203a74dfc 73 else if (face == 1){
el17sm 16:ddb203a74dfc 74 position.x += velocity;
el17sm 18:3c030560e31d 75 update_hitbox(7, 4, 0, 0, 12, 7, 3, 4, 4);
el17sm 16:ddb203a74dfc 76 }
el17sm 16:ddb203a74dfc 77 else if (face == 2){
el17sm 16:ddb203a74dfc 78 position.y -= velocity;
el17sm 18:3c030560e31d 79 update_hitbox(4, 7, 0, 0, 6, 12, 1, 5, 6);
el17sm 16:ddb203a74dfc 80 }
el17sm 16:ddb203a74dfc 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 16:ddb203a74dfc 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 16:ddb203a74dfc 88
el17sm 17:99e533f7f2fb 89 if (frame.count < 5) {
el17sm 16:ddb203a74dfc 90 frame.count++;
el17sm 16:ddb203a74dfc 91 }
el17sm 16:ddb203a74dfc 92 else {
el17sm 16:ddb203a74dfc 93 frame.count = 0;
el17sm 17:99e533f7f2fb 94 if (_velocity_index < 6) {
el17sm 17:99e533f7f2fb 95 _velocity_index++;
el17sm 17:99e533f7f2fb 96 }
el17sm 17:99e533f7f2fb 97 else {
el17sm 17:99e533f7f2fb 98 _velocity_index = 0;
el17sm 17:99e533f7f2fb 99 }
el17sm 17:99e533f7f2fb 100 if (frame.number < frame.max) {
el17sm 17:99e533f7f2fb 101 frame.number++;
el17sm 17:99e533f7f2fb 102 }
el17sm 17:99e533f7f2fb 103 else {
el17sm 17:99e533f7f2fb 104 frame.number = 0;
el17sm 17:99e533f7f2fb 105 }
el17sm 16:ddb203a74dfc 106 }
el17sm 16:ddb203a74dfc 107 }
el17sm 16:ddb203a74dfc 108
el17sm 16:ddb203a74dfc 109 int * Snake::get_frame() {
el17sm 17:99e533f7f2fb 110 if(face == 0) {
el17sm 17:99e533f7f2fb 111 return (int *) sprite_snake_y[1][frame.number];
el17sm 17:99e533f7f2fb 112 }
el17sm 17:99e533f7f2fb 113 else if(face == 1) {
el17sm 17:99e533f7f2fb 114 return (int *) sprite_snake_x[0][frame.number];
el17sm 17:99e533f7f2fb 115 }
el17sm 17:99e533f7f2fb 116 else if(face == 2) {
el17sm 17:99e533f7f2fb 117 return (int *) sprite_snake_y[0][frame.number];
el17sm 17:99e533f7f2fb 118 }
el17sm 17:99e533f7f2fb 119 else if(face == 3) {
el17sm 17:99e533f7f2fb 120 return (int *) sprite_snake_x[1][frame.number];
el17sm 17:99e533f7f2fb 121 }
el17sm 17:99e533f7f2fb 122 return 0;
el17sm 16:ddb203a74dfc 123 }