Steven Mahasin / Mbed 2 deprecated DreamDungeon

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   mbed MotionSensor

Entity/Snake/Snake.cpp@16:ddb203a74dfc, 2019-04-24 (annotated)

Committer:
el17sm
Date:
Wed Apr 24 21:21:37 2019 +0000
Revision:
16:ddb203a74dfc
Child:
17:99e533f7f2fb
Child:
19:bfe410c82b45
Screen clear error;

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 16:ddb203a74dfc 5 Snake::Snake(float pos_x, float pos_y) {
el17sm 16:ddb203a74dfc 6 moving = true;
el17sm 16:ddb203a74dfc 7 face = 0;
el17sm 16:ddb203a74dfc 8 hp = 4;
el17sm 16:ddb203a74dfc 9 hitbox.width = 6;
el17sm 16:ddb203a74dfc 10 hitbox.height = 5;
el17sm 16:ddb203a74dfc 11 position.x = pos_x;
el17sm 16:ddb203a74dfc 12 position.y = pos_y;
el17sm 16:ddb203a74dfc 13 sprite_size.width = 6;
el17sm 16:ddb203a74dfc 14 sprite_size.height = 9;
el17sm 16:ddb203a74dfc 15 sprite_size.offset_x = 0;
el17sm 16:ddb203a74dfc 16 sprite_size.offset_y = 4;
el17sm 16:ddb203a74dfc 17 frame.count = 0;
el17sm 16:ddb203a74dfc 18 frame.number = 0;
el17sm 16:ddb203a74dfc 19 frame.max = 6;
el17sm 16:ddb203a74dfc 20 velocity = 0.1;
el17sm 16:ddb203a74dfc 21 }
el17sm 16:ddb203a74dfc 22
el17sm 16:ddb203a74dfc 23 void Snake::move(float player_x, float player_y) {
el17sm 16:ddb203a74dfc 24 std::complex<double> pos_diff(player_x - position.x, player_y - position.y); // defining difference in position as a vector
el17sm 16:ddb203a74dfc 25 velocity = velocity_pattern[frame.number]; // Creating slithering effect, changing velocity of movement
el17sm 16:ddb203a74dfc 26
el17sm 16:ddb203a74dfc 27 // Setting Face
el17sm 16:ddb203a74dfc 28 if (frame.number == 0) {
el17sm 16:ddb203a74dfc 29 if (abs(pos_diff.real()) > abs(pos_diff.imag())) {
el17sm 16:ddb203a74dfc 30 if (pos_diff.real() > 0) {
el17sm 16:ddb203a74dfc 31 face = 1;
el17sm 16:ddb203a74dfc 32 }
el17sm 16:ddb203a74dfc 33 else {
el17sm 16:ddb203a74dfc 34 face = 3;
el17sm 16:ddb203a74dfc 35 }
el17sm 16:ddb203a74dfc 36 }
el17sm 16:ddb203a74dfc 37 else {
el17sm 16:ddb203a74dfc 38 if (pos_diff.imag() > 0) {
el17sm 16:ddb203a74dfc 39 face = 0;
el17sm 16:ddb203a74dfc 40 }
el17sm 16:ddb203a74dfc 41 else {
el17sm 16:ddb203a74dfc 42 face = 2;
el17sm 16:ddb203a74dfc 43 }
el17sm 16:ddb203a74dfc 44 }
el17sm 16:ddb203a74dfc 45 }
el17sm 16:ddb203a74dfc 46
el17sm 16:ddb203a74dfc 47 // Movement, Offset and Update
el17sm 16:ddb203a74dfc 48 if (face == 0){
el17sm 16:ddb203a74dfc 49 position.y += velocity;
el17sm 16:ddb203a74dfc 50 }
el17sm 16:ddb203a74dfc 51 else if (face == 1){
el17sm 16:ddb203a74dfc 52 position.x += velocity;
el17sm 16:ddb203a74dfc 53 }
el17sm 16:ddb203a74dfc 54 else if (face == 2){
el17sm 16:ddb203a74dfc 55 position.y -= velocity;
el17sm 16:ddb203a74dfc 56 }
el17sm 16:ddb203a74dfc 57 else if (face == 3){
el17sm 16:ddb203a74dfc 58 position.x -= velocity;
el17sm 16:ddb203a74dfc 59 }
el17sm 16:ddb203a74dfc 60
el17sm 16:ddb203a74dfc 61 undo_move_x(matrix_collision_test(position.x, prev_pos.y, 0));
el17sm 16:ddb203a74dfc 62 undo_move_y(matrix_collision_test(prev_pos.x, position.y, 0));
el17sm 16:ddb203a74dfc 63
el17sm 16:ddb203a74dfc 64 if (frame.number < frame.max) {
el17sm 16:ddb203a74dfc 65 frame.count++;
el17sm 16:ddb203a74dfc 66 }
el17sm 16:ddb203a74dfc 67 else {
el17sm 16:ddb203a74dfc 68 frame.count = 0;
el17sm 16:ddb203a74dfc 69 }
el17sm 16:ddb203a74dfc 70 frame.number = (frame.count/5) % frame.max;
el17sm 16:ddb203a74dfc 71 }
el17sm 16:ddb203a74dfc 72
el17sm 16:ddb203a74dfc 73 int * Snake::get_frame() {
el17sm 16:ddb203a74dfc 74 return (int *) sprite_snake[face][frame.number];
el17sm 16:ddb203a74dfc 75 }