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Dependencies:   mbed MotionSensor

Entity/Snake/Snake.cpp@21:be18f33da757, 2019-04-25 (annotated)

Committer:
el17sm
Date:
Thu Apr 25 05:27:43 2019 +0000
Revision:
21:be18f33da757
Parent:
19:bfe410c82b45 
Snake half done no clear screen 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 21:be18f33da757 5 Snake::Snake(float pos_x, float pos_y)
el17sm 21:be18f33da757 6 {
el17sm 16:ddb203a74dfc 7 moving = true;
el17sm 16:ddb203a74dfc 8 face = 0;
el17sm 16:ddb203a74dfc 9 hp = 4;
el17sm 16:ddb203a74dfc 10 hitbox.width = 6;
el17sm 16:ddb203a74dfc 11 hitbox.height = 5;
el17sm 16:ddb203a74dfc 12 position.x = pos_x;
el17sm 16:ddb203a74dfc 13 position.y = pos_y;
el17sm 16:ddb203a74dfc 14 sprite_size.width = 6;
el17sm 16:ddb203a74dfc 15 sprite_size.height = 9;
el17sm 16:ddb203a74dfc 16 sprite_size.offset_x = 0;
el17sm 16:ddb203a74dfc 17 sprite_size.offset_y = 4;
el17sm 16:ddb203a74dfc 18 frame.count = 0;
el17sm 16:ddb203a74dfc 19 frame.number = 0;
el17sm 16:ddb203a74dfc 20 frame.max = 6;
el17sm 19:bfe410c82b45 21 velocity = 0;
el17sm 16:ddb203a74dfc 22 }
el17sm 16:ddb203a74dfc 23
el17sm 21:be18f33da757 24 void Snake::move(float player_x, float player_y)
el17sm 21:be18f33da757 25 {
el17sm 16:ddb203a74dfc 26 std::complex<double> pos_diff(player_x - position.x, player_y - position.y); // defining difference in position as a vector
el17sm 16:ddb203a74dfc 27 velocity = velocity_pattern[frame.number]; // Creating slithering effect, changing velocity of movement
el17sm 21:be18f33da757 28
el17sm 16:ddb203a74dfc 29 // Setting Face
el17sm 16:ddb203a74dfc 30 if (frame.number == 0) {
el17sm 16:ddb203a74dfc 31 if (abs(pos_diff.real()) > abs(pos_diff.imag())) {
el17sm 16:ddb203a74dfc 32 if (pos_diff.real() > 0) {
el17sm 16:ddb203a74dfc 33 face = 1;
el17sm 21:be18f33da757 34 } else {
el17sm 16:ddb203a74dfc 35 face = 3;
el17sm 16:ddb203a74dfc 36 }
el17sm 21:be18f33da757 37 } else {
el17sm 16:ddb203a74dfc 38 if (pos_diff.imag() > 0) {
el17sm 16:ddb203a74dfc 39 face = 0;
el17sm 21:be18f33da757 40 } else {
el17sm 16:ddb203a74dfc 41 face = 2;
el17sm 16:ddb203a74dfc 42 }
el17sm 16:ddb203a74dfc 43 }
el17sm 16:ddb203a74dfc 44 }
el17sm 21:be18f33da757 45
el17sm 16:ddb203a74dfc 46 // Movement, Offset and Update
el17sm 21:be18f33da757 47 if (face == 0) {
el17sm 16:ddb203a74dfc 48 position.y += velocity;
el17sm 21:be18f33da757 49 } else if (face == 1) {
el17sm 16:ddb203a74dfc 50 position.x += velocity;
el17sm 21:be18f33da757 51 } else if (face == 2) {
el17sm 16:ddb203a74dfc 52 position.y -= velocity;
el17sm 21:be18f33da757 53 } else if (face == 3) {
el17sm 16:ddb203a74dfc 54 position.x -= velocity;
el17sm 16:ddb203a74dfc 55 }
el17sm 21:be18f33da757 56
el17sm 16:ddb203a74dfc 57 undo_move_x(matrix_collision_test(position.x, prev_pos.y, 0));
el17sm 16:ddb203a74dfc 58 undo_move_y(matrix_collision_test(prev_pos.x, position.y, 0));
el17sm 21:be18f33da757 59
el17sm 21:be18f33da757 60 frame.count++;
el17sm 21:be18f33da757 61 if (frame.count >= 5) {
el17sm 16:ddb203a74dfc 62 frame.count = 0;
el17sm 21:be18f33da757 63 frame.number++;
el17sm 21:be18f33da757 64 if (frame.number >= frame.max) {
el17sm 19:bfe410c82b45 65 frame.number = 0;
el17sm 19:bfe410c82b45 66 }
el17sm 16:ddb203a74dfc 67 }
el17sm 16:ddb203a74dfc 68 }
el17sm 16:ddb203a74dfc 69
el17sm 21:be18f33da757 70 int * Snake::get_frame()
el17sm 21:be18f33da757 71 {
el17sm 16:ddb203a74dfc 72 return (int *) sprite_snake[face][frame.number];
el17sm 16:ddb203a74dfc 73 }