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Dependencies:   mbed MotionSensor

Entity/Mobs/Snake/Snake.cpp@33:4f3948dcd2f7, 2019-05-06 (annotated)

Committer:
el17sm
Date:
Mon May 06 13:27:26 2019 +0000
Revision:
33:4f3948dcd2f7
Parent:
32:fe6359ef9916
Child:
34:1d5b4da3935e
Saved space using char to print screen instead of int (reduction by 4x)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
el17sm 32:fe6359ef9916 1 #include "Snake.h"
el17sm 32:fe6359ef9916 2 #include "math.h"
el17sm 32:fe6359ef9916 3 #include <complex>
el17sm 32:fe6359ef9916 4
el17sm 32:fe6359ef9916 5 // Constructor
el17sm 32:fe6359ef9916 6 Snake::Snake(float pos_x, float pos_y)
el17sm 32:fe6359ef9916 7 {
el17sm 32:fe6359ef9916 8 _damage_self_upon_collision = false;
el17sm 32:fe6359ef9916 9 _hp_drop_chance = 10; // out of 100
el17sm 32:fe6359ef9916 10 moving = true;
el17sm 32:fe6359ef9916 11 _prev_face = 0;
el17sm 32:fe6359ef9916 12 face = 0;
el17sm 32:fe6359ef9916 13 hp = 4;
el17sm 32:fe6359ef9916 14 attack = 1;
el17sm 32:fe6359ef9916 15 hitbox.width = 4;
el17sm 32:fe6359ef9916 16 hitbox.height = 7;
el17sm 32:fe6359ef9916 17 position.x = pos_x;
el17sm 32:fe6359ef9916 18 position.y = pos_y;
el17sm 32:fe6359ef9916 19 sprite_size.width = 6;
el17sm 32:fe6359ef9916 20 sprite_size.height = 12;
el17sm 33:4f3948dcd2f7 21 sprite_size.offset_x = -1;
el17sm 33:4f3948dcd2f7 22 sprite_size.offset_y = -6;
el17sm 32:fe6359ef9916 23 frame.count = 0;
el17sm 32:fe6359ef9916 24 frame.number = 0;
el17sm 32:fe6359ef9916 25 frame.max = 6;
el17sm 32:fe6359ef9916 26 velocity = 0;
el17sm 32:fe6359ef9916 27 _velocity_index = 0;
el17sm 32:fe6359ef9916 28 }
el17sm 32:fe6359ef9916 29 // Member Function
el17sm 32:fe6359ef9916 30 void Snake::update_prev_face()
el17sm 32:fe6359ef9916 31 {
el17sm 32:fe6359ef9916 32 _prev_face = face;
el17sm 32:fe6359ef9916 33 }
el17sm 32:fe6359ef9916 34
el17sm 32:fe6359ef9916 35 // Member Mutator
el17sm 32:fe6359ef9916 36 void Snake::update_hitbox(int hitbox_width, int hitbox_height, 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 32:fe6359ef9916 37 {
el17sm 32:fe6359ef9916 38 if (_prev_face != face) {
el17sm 32:fe6359ef9916 39 frame.number = 0;
el17sm 32:fe6359ef9916 40 hitbox.width = sprite_size.offset_y;
el17sm 32:fe6359ef9916 41 hitbox.height = hitbox_height;
el17sm 32:fe6359ef9916 42 sprite_size.width = sprite_size_width;
el17sm 32:fe6359ef9916 43 sprite_size.height = sprite_size_height;
el17sm 32:fe6359ef9916 44 sprite_size.offset_x = sprite_size_offset_x;
el17sm 32:fe6359ef9916 45 sprite_size.offset_y = sprite_size_offset_y;
el17sm 32:fe6359ef9916 46 frame.max = max_frame;
el17sm 32:fe6359ef9916 47 }
el17sm 32:fe6359ef9916 48 }
el17sm 32:fe6359ef9916 49
el17sm 32:fe6359ef9916 50 // Functions
el17sm 32:fe6359ef9916 51 void Snake::move(float player_x, float player_y, int * map, bool * doorways)
el17sm 32:fe6359ef9916 52 {
el17sm 32:fe6359ef9916 53 std::complex<double> pos_diff(player_x - position.x, player_y - position.y); // defining difference in position as a vector
el17sm 32:fe6359ef9916 54 velocity = velocity_pattern[_velocity_index]; // Creating slithering effect, changing velocity of movement
el17sm 32:fe6359ef9916 55 update_prev_face();
el17sm 32:fe6359ef9916 56
el17sm 32:fe6359ef9916 57 // Setting Face
el17sm 32:fe6359ef9916 58 if (_velocity_index == 0) {
el17sm 32:fe6359ef9916 59 if (abs(pos_diff.real()) > abs(pos_diff.imag())) {
el17sm 32:fe6359ef9916 60 if (pos_diff.real() > 0) {
el17sm 32:fe6359ef9916 61 face = 1;
el17sm 32:fe6359ef9916 62 } else {
el17sm 32:fe6359ef9916 63 face = 3;
el17sm 32:fe6359ef9916 64 }
el17sm 32:fe6359ef9916 65 } else {
el17sm 32:fe6359ef9916 66 if (pos_diff.imag() > 0) {
el17sm 32:fe6359ef9916 67 face = 0;
el17sm 32:fe6359ef9916 68 } else {
el17sm 32:fe6359ef9916 69 face = 2;
el17sm 32:fe6359ef9916 70 }
el17sm 32:fe6359ef9916 71 }
el17sm 32:fe6359ef9916 72 }
el17sm 32:fe6359ef9916 73
el17sm 32:fe6359ef9916 74 // Movement
el17sm 32:fe6359ef9916 75 if (face == 0) {
el17sm 32:fe6359ef9916 76 position.y += velocity;
el17sm 33:4f3948dcd2f7 77 update_hitbox(4, 7, 6, 12, -1, -6, 6);
el17sm 32:fe6359ef9916 78 } else if (face == 1) {
el17sm 32:fe6359ef9916 79 position.x += velocity;
el17sm 33:4f3948dcd2f7 80 update_hitbox(7, 4, 12, 7, -6, -4, 4);
el17sm 32:fe6359ef9916 81 } else if (face == 2) {
el17sm 32:fe6359ef9916 82 position.y -= velocity;
el17sm 33:4f3948dcd2f7 83 update_hitbox(4, 7, 6, 12, -1, -5, 6);
el17sm 32:fe6359ef9916 84 } else if (face == 3) {
el17sm 32:fe6359ef9916 85 position.x -= velocity;
el17sm 33:4f3948dcd2f7 86 update_hitbox(7, 4, 12, 7, -0, -4, 4);
el17sm 32:fe6359ef9916 87 }
el17sm 32:fe6359ef9916 88
el17sm 32:fe6359ef9916 89 undo_move_x(entity_to_map_collision_test(position.x, prev_pos.y, map, doorways));
el17sm 32:fe6359ef9916 90 undo_move_y(entity_to_map_collision_test(prev_pos.x, position.y, map, doorways));
el17sm 32:fe6359ef9916 91
el17sm 32:fe6359ef9916 92 frame.count++;
el17sm 32:fe6359ef9916 93 if (frame.count >= 10) {
el17sm 32:fe6359ef9916 94 frame.count = 0;
el17sm 32:fe6359ef9916 95 _velocity_index++;
el17sm 32:fe6359ef9916 96 frame.number++;
el17sm 32:fe6359ef9916 97 if (_velocity_index >= 6) {
el17sm 32:fe6359ef9916 98 _velocity_index = 0;
el17sm 32:fe6359ef9916 99 }
el17sm 32:fe6359ef9916 100 if (frame.number >= frame.max) {
el17sm 32:fe6359ef9916 101 frame.number = 0;
el17sm 32:fe6359ef9916 102 }
el17sm 32:fe6359ef9916 103 }
el17sm 32:fe6359ef9916 104 }
el17sm 32:fe6359ef9916 105
el17sm 32:fe6359ef9916 106 void Snake::take_damage(int damage)
el17sm 32:fe6359ef9916 107 {
el17sm 32:fe6359ef9916 108 hp -= damage;
el17sm 32:fe6359ef9916 109 }
el17sm 32:fe6359ef9916 110
el17sm 33:4f3948dcd2f7 111 char * Snake::get_frame()
el17sm 32:fe6359ef9916 112 {
el17sm 32:fe6359ef9916 113 if(face == 0) {
el17sm 33:4f3948dcd2f7 114 return (char *) sprite_snake_y[1][frame.number];
el17sm 32:fe6359ef9916 115 } else if(face == 1) {
el17sm 33:4f3948dcd2f7 116 return (char *) sprite_snake_x[0][frame.number];
el17sm 32:fe6359ef9916 117 } else if(face == 2) {
el17sm 33:4f3948dcd2f7 118 return (char *) sprite_snake_y[0][frame.number];
el17sm 32:fe6359ef9916 119 } else if(face == 3) {
el17sm 33:4f3948dcd2f7 120 return (char *) sprite_snake_x[1][frame.number];
el17sm 32:fe6359ef9916 121 }
el17sm 32:fe6359ef9916 122 return 0;
el17sm 32:fe6359ef9916 123 }
el17sm 32:fe6359ef9916 124
el17sm 32:fe6359ef9916 125 void Snake::draw(N5110 &lcd)
el17sm 32:fe6359ef9916 126 {
el17sm 33:4f3948dcd2f7 127 lcd.drawSpriteTransparent(position.x+sprite_size.offset_x,
el17sm 33:4f3948dcd2f7 128 position.y+sprite_size.offset_y,
el17sm 32:fe6359ef9916 129 sprite_size.height,
el17sm 32:fe6359ef9916 130 sprite_size.width,
el17sm 32:fe6359ef9916 131 get_frame());
el17sm 32:fe6359ef9916 132 }