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Dependencies:   mbed

CrossHairs/CrossHairs.cpp@8:475b80f88ceb, 2019-05-08 (annotated)

Committer:
adat80
Date:
Wed May 08 23:40:34 2019 +0000
Revision:
8:475b80f88ceb
Parent:
5:8bd09c675f28 
Final Submission. I have read and agreed with Statement of Academic Integrity.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
adat80 1:3916f272663e 1 #include "CrossHairs.h"
adat80 1:3916f272663e 2
adat80 1:3916f272663e 3
adat80 1:3916f272663e 4 int crossHairsSprite[7][7] = {
adat80 1:3916f272663e 5 { 0,0,1,1,1,0,0 },
adat80 1:3916f272663e 6 { 0,1,0,0,0,1,0 },
adat80 1:3916f272663e 7 { 1,0,0,1,0,0,1 },
adat80 1:3916f272663e 8 { 1,0,1,1,1,0,1 },
adat80 1:3916f272663e 9 { 1,0,0,1,0,0,1 },
adat80 1:3916f272663e 10 { 0,1,0,0,0,1,0 },
adat80 1:3916f272663e 11 { 0,0,1,1,1,0,0 },
adat80 1:3916f272663e 12 };
adat80 1:3916f272663e 13
adat80 1:3916f272663e 14 CrossHairs::CrossHairs()
adat80 1:3916f272663e 15 {
adat80 1:3916f272663e 16
adat80 1:3916f272663e 17 }
adat80 1:3916f272663e 18
adat80 1:3916f272663e 19 CrossHairs::~CrossHairs()
adat80 1:3916f272663e 20 {
adat80 1:3916f272663e 21
adat80 1:3916f272663e 22 }
adat80 1:3916f272663e 23
adat80 1:3916f272663e 24 void CrossHairs::init(int speed)
adat80 1:3916f272663e 25 {
adat80 5:8bd09c675f28 26 //set the cross hairs x and y to centre of display
adat80 1:3916f272663e 27 _x = WIDTH/2 - (7/2);
adat80 1:3916f272663e 28 _y = HEIGHT/2 - (7/2);
adat80 5:8bd09c675f28 29
adat80 5:8bd09c675f28 30 //set the cross hairs max speed in pixels per frame
adat80 1:3916f272663e 31 _speed = speed;
adat80 1:3916f272663e 32
adat80 1:3916f272663e 33
adat80 1:3916f272663e 34
adat80 1:3916f272663e 35 }
adat80 1:3916f272663e 36
adat80 1:3916f272663e 37 void CrossHairs::draw(N5110 &lcd)
adat80 1:3916f272663e 38 {
adat80 1:3916f272663e 39 // x origin, y origin, rows, cols, sprite
adat80 1:3916f272663e 40 lcd.drawSprite(_x,_y,7,7,(int *)crossHairsSprite);
adat80 1:3916f272663e 41
adat80 1:3916f272663e 42 }
adat80 1:3916f272663e 43
adat80 5:8bd09c675f28 44 void CrossHairs::update(float angle,float mag)
adat80 1:3916f272663e 45 {
adat80 5:8bd09c675f28 46 //Correcting JoyStick angle to match screen angles
adat80 1:3916f272663e 47 angle = angle - 90.0f;
adat80 1:3916f272663e 48
adat80 1:3916f272663e 49 //Conversion To Radians
adat80 1:3916f272663e 50 double angleRads = (angle/360.0f)*2.0f*3.14f;
adat80 1:3916f272663e 51
adat80 5:8bd09c675f28 52 //incriment x and y based on an angle and magnitude
adat80 1:3916f272663e 53 _x+= _speed*mag*cos(angleRads);
adat80 1:3916f272663e 54 _y += _speed*mag*sin(angleRads);
adat80 1:3916f272663e 55
adat80 5:8bd09c675f28 56 //check if cross hairs are outside screen boundary
adat80 5:8bd09c675f28 57 //if they are outside the boundary set the problem coordinate to the boundary
adat80 1:3916f272663e 58 int halfCrossHairs = 3;
adat80 1:3916f272663e 59 if (_x < -halfCrossHairs) {
adat80 1:3916f272663e 60 _x = -halfCrossHairs;
adat80 1:3916f272663e 61 } else if (_x > 84-halfCrossHairs) {
adat80 1:3916f272663e 62 _x = 84-halfCrossHairs;
adat80 1:3916f272663e 63 }
adat80 1:3916f272663e 64 if (_y < -halfCrossHairs) {
adat80 1:3916f272663e 65 _y = -halfCrossHairs;
adat80 1:3916f272663e 66 } else if (_y > 48-halfCrossHairs) {
adat80 1:3916f272663e 67 _y = 48-halfCrossHairs;
adat80 1:3916f272663e 68 }
adat80 1:3916f272663e 69
adat80 1:3916f272663e 70 }
adat80 1:3916f272663e 71
adat80 1:3916f272663e 72
adat80 1:3916f272663e 73
adat80 1:3916f272663e 74 Vector2D CrossHairs::get_pos()
adat80 1:3916f272663e 75 {
adat80 1:3916f272663e 76 Vector2D p = {_x,_y};
adat80 1:3916f272663e 77 return p;
adat80 1:3916f272663e 78 }
adat80 1:3916f272663e 79
adat80 1:3916f272663e 80 void CrossHairs::set_pos(Vector2D p)
adat80 1:3916f272663e 81 {
adat80 1:3916f272663e 82 _x = p.x;
adat80 1:3916f272663e 83 _y = p.y;
adat80 1:3916f272663e 84 }