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Dependencies:   mbed MotionSensor

Entity/Snake/Snake.cpp@17:99e533f7f2fb, 2019-04-24 (annotated)

Committer:
el17sm
Date:
Wed Apr 24 23:56:32 2019 +0000
Revision:
17:99e533f7f2fb
Parent:
16:ddb203a74dfc
Child:
18:3c030560e31d
Snake half done

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 17:99e533f7f2fb 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){ // Offset, Hitbox and Frame Count update
el17sm 17:99e533f7f2fb 30 if (_prev_face != face){
el17sm 17:99e533f7f2fb 31 hitbox.width = sprite_size.offset_y;
el17sm 17:99e533f7f2fb 32 hitbox.height = hitbox_height;
el17sm 17:99e533f7f2fb 33 sprite_size.width = sprite_size_width;
el17sm 17:99e533f7f2fb 34 sprite_size.height = sprite_size_height;
el17sm 17:99e533f7f2fb 35 sprite_size.offset_x = sprite_size_offset_x;
el17sm 17:99e533f7f2fb 36 sprite_size.offset_y = sprite_size_offset_y;
el17sm 17:99e533f7f2fb 37 }
el17sm 16:ddb203a74dfc 38 }
el17sm 16:ddb203a74dfc 39
el17sm 17:99e533f7f2fb 40 // Functions
el17sm 16:ddb203a74dfc 41 void Snake::move(float player_x, float player_y) {
el17sm 16:ddb203a74dfc 42 std::complex<double> pos_diff(player_x - position.x, player_y - position.y); // defining difference in position as a vector
el17sm 17:99e533f7f2fb 43 velocity = velocity_pattern[_velocity_index]; // Creating slithering effect, changing velocity of movement
el17sm 17:99e533f7f2fb 44 update_prev_face();
el17sm 16:ddb203a74dfc 45
el17sm 16:ddb203a74dfc 46 // Setting Face
el17sm 17:99e533f7f2fb 47 if (_velocity_index == 0) {
el17sm 16:ddb203a74dfc 48 if (abs(pos_diff.real()) > abs(pos_diff.imag())) {
el17sm 16:ddb203a74dfc 49 if (pos_diff.real() > 0) {
el17sm 16:ddb203a74dfc 50 face = 1;
el17sm 16:ddb203a74dfc 51 }
el17sm 16:ddb203a74dfc 52 else {
el17sm 16:ddb203a74dfc 53 face = 3;
el17sm 16:ddb203a74dfc 54 }
el17sm 16:ddb203a74dfc 55 }
el17sm 16:ddb203a74dfc 56 else {
el17sm 16:ddb203a74dfc 57 if (pos_diff.imag() > 0) {
el17sm 16:ddb203a74dfc 58 face = 0;
el17sm 16:ddb203a74dfc 59 }
el17sm 16:ddb203a74dfc 60 else {
el17sm 16:ddb203a74dfc 61 face = 2;
el17sm 16:ddb203a74dfc 62 }
el17sm 16:ddb203a74dfc 63 }
el17sm 16:ddb203a74dfc 64 }
el17sm 16:ddb203a74dfc 65
el17sm 17:99e533f7f2fb 66 // Movement
el17sm 16:ddb203a74dfc 67 if (face == 0){
el17sm 16:ddb203a74dfc 68 position.y += velocity;
el17sm 17:99e533f7f2fb 69 update_hitbox(4, 7, 0, 0, 6, 12, 1, 6);
el17sm 16:ddb203a74dfc 70 }
el17sm 16:ddb203a74dfc 71 else if (face == 1){
el17sm 16:ddb203a74dfc 72 position.x += velocity;
el17sm 17:99e533f7f2fb 73 update_hitbox(7, 4, 0, 0, 12, 7, 3, 4);
el17sm 16:ddb203a74dfc 74 }
el17sm 16:ddb203a74dfc 75 else if (face == 2){
el17sm 16:ddb203a74dfc 76 position.y -= velocity;
el17sm 17:99e533f7f2fb 77 update_hitbox(4, 7, 0, 0, 6, 12, 1, 5);
el17sm 16:ddb203a74dfc 78 }
el17sm 16:ddb203a74dfc 79 else if (face == 3){
el17sm 16:ddb203a74dfc 80 position.x -= velocity;
el17sm 17:99e533f7f2fb 81 update_hitbox(7, 4, 0, 0, 12, 7, 2, 4);
el17sm 16:ddb203a74dfc 82 }
el17sm 16:ddb203a74dfc 83
el17sm 16:ddb203a74dfc 84 undo_move_x(matrix_collision_test(position.x, prev_pos.y, 0));
el17sm 16:ddb203a74dfc 85 undo_move_y(matrix_collision_test(prev_pos.x, position.y, 0));
el17sm 16:ddb203a74dfc 86
el17sm 17:99e533f7f2fb 87 if (frame.count < 5) {
el17sm 16:ddb203a74dfc 88 frame.count++;
el17sm 16:ddb203a74dfc 89 }
el17sm 16:ddb203a74dfc 90 else {
el17sm 16:ddb203a74dfc 91 frame.count = 0;
el17sm 17:99e533f7f2fb 92 if (_velocity_index < 6) {
el17sm 17:99e533f7f2fb 93 _velocity_index++;
el17sm 17:99e533f7f2fb 94 }
el17sm 17:99e533f7f2fb 95 else {
el17sm 17:99e533f7f2fb 96 _velocity_index = 0;
el17sm 17:99e533f7f2fb 97 }
el17sm 17:99e533f7f2fb 98 if (frame.number < frame.max) {
el17sm 17:99e533f7f2fb 99 frame.number++;
el17sm 17:99e533f7f2fb 100 }
el17sm 17:99e533f7f2fb 101 else {
el17sm 17:99e533f7f2fb 102 frame.number = 0;
el17sm 17:99e533f7f2fb 103 }
el17sm 16:ddb203a74dfc 104 }
el17sm 16:ddb203a74dfc 105 }
el17sm 16:ddb203a74dfc 106
el17sm 16:ddb203a74dfc 107 int * Snake::get_frame() {
el17sm 17:99e533f7f2fb 108 if(face == 0) {
el17sm 17:99e533f7f2fb 109 return (int *) sprite_snake_y[1][frame.number];
el17sm 17:99e533f7f2fb 110 }
el17sm 17:99e533f7f2fb 111 else if(face == 1) {
el17sm 17:99e533f7f2fb 112 return (int *) sprite_snake_x[0][frame.number];
el17sm 17:99e533f7f2fb 113 }
el17sm 17:99e533f7f2fb 114 else if(face == 2) {
el17sm 17:99e533f7f2fb 115 return (int *) sprite_snake_y[0][frame.number];
el17sm 17:99e533f7f2fb 116 }
el17sm 17:99e533f7f2fb 117 else if(face == 3) {
el17sm 17:99e533f7f2fb 118 return (int *) sprite_snake_x[1][frame.number];
el17sm 17:99e533f7f2fb 119 }
el17sm 17:99e533f7f2fb 120 return 0;
el17sm 16:ddb203a74dfc 121 }