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Dependencies:   mbed N5110 ShiftReg PinDetect

State.h@12:8178fad5e660, 2015-05-08 (annotated)

Committer:
Siriagus
Date:
Fri May 08 23:51:26 2015 +0000
Revision:
12:8178fad5e660
Parent:
10:f2488a0ecab7
Child:
13:7ab71c7c311b
Added template drawImage function which can draw images of any dimension.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Siriagus 1:0cfe2255092a 1 #ifndef STATE_H
Siriagus 1:0cfe2255092a 2 #define STATE_H
Siriagus 1:0cfe2255092a 3
Siriagus 4:d6661b976359 4 #include "N5110.h"
Siriagus 4:d6661b976359 5 #include "PinDetect.h"
Siriagus 4:d6661b976359 6 #include "InputManager.h"
Siriagus 4:d6661b976359 7
Siriagus 10:f2488a0ecab7 8 /** @file State.h
Siriagus 10:f2488a0ecab7 9 * @author Andreas Garmannslund
Siriagus 10:f2488a0ecab7 10 * @date April 2015
Siriagus 10:f2488a0ecab7 11 */
Siriagus 10:f2488a0ecab7 12
Siriagus 4:d6661b976359 13 class StateManager;
Siriagus 4:d6661b976359 14
Siriagus 10:f2488a0ecab7 15 /// States used in the finite state machine.
Siriagus 8:9ac6a428fa26 16 enum MainState {MAIN_MENU, GAME, SUBMIT_HIGHSCORE, GAME_OVER, NO_STATE, TITLE_SCREEN};
Siriagus 4:d6661b976359 17
Siriagus 10:f2488a0ecab7 18 /// Abstract class for states in the program's main finite state machine. All state implementations is derived from this abstract class.
Siriagus 1:0cfe2255092a 19 class State
Siriagus 5:100d960fc6d5 20 {
Siriagus 1:0cfe2255092a 21 public:
Siriagus 10:f2488a0ecab7 22
Siriagus 10:f2488a0ecab7 23 /* Creates a new state object. Should be called from child's constructor.
Siriagus 10:f2488a0ecab7 24 * @param fsm Pointer to finished state machine.
Siriagus 10:f2488a0ecab7 25 * @param lcd Pointer to the N5110 lcd object.
Siriagus 10:f2488a0ecab7 26 * @param input Pointer to the InputManager object, used for controlling user input.
Siriagus 10:f2488a0ecab7 27 */
Siriagus 4:d6661b976359 28 State(StateManager* fsm, N5110 *lcd, InputManager* input)
Siriagus 7:678873947b29 29 :lcd(lcd), input(input), fsm(fsm){}
Siriagus 4:d6661b976359 30
Siriagus 10:f2488a0ecab7 31 /// Handle user input and update logic.
Siriagus 7:678873947b29 32 virtual void update(float dt) = 0;
Siriagus 10:f2488a0ecab7 33
Siriagus 10:f2488a0ecab7 34 /// Draw to screen.
Siriagus 4:d6661b976359 35 virtual void render() = 0;
Siriagus 4:d6661b976359 36
Siriagus 7:678873947b29 37 protected:
Siriagus 10:f2488a0ecab7 38 /* Requests the finite state machine to switch to a new state when possible.
Siriagus 10:f2488a0ecab7 39 * @param newState The state the fsm should switch to.
Siriagus 10:f2488a0ecab7 40 **/
Siriagus 7:678873947b29 41 void requestStateChange(MainState newState);
Siriagus 10:f2488a0ecab7 42
Siriagus 10:f2488a0ecab7 43 /** Draws an image to the lcd
Siriagus 10:f2488a0ecab7 44 * @param img Array with the same size as the display, where 1 is opaque, 0 is blank.
Siriagus 10:f2488a0ecab7 45 */
Siriagus 12:8178fad5e660 46 //void drawImage(const int img[BANKS][WIDTH]); // Draws an image from array
Siriagus 12:8178fad5e660 47
Siriagus 12:8178fad5e660 48
Siriagus 12:8178fad5e660 49 /** Draws an image/sprite to the lcd
Siriagus 12:8178fad5e660 50 * @param img const int array where a solid pixel equals 1, and a blank pixel equals zero
Siriagus 12:8178fad5e660 51 * @param x Horizontal position of image (leftmost pixel)
Siriagus 12:8178fad5e660 52 * @param y Vertical position of image (uppermost pixel)
Siriagus 12:8178fad5e660 53 * See seperate program for how this array can be generated from an image file using SFML!
Siriagus 12:8178fad5e660 54 */
Siriagus 12:8178fad5e660 55 template<size_t rows, size_t cols>
Siriagus 12:8178fad5e660 56 void drawImage(const int (&img)[rows][cols], int x, int y);
Siriagus 12:8178fad5e660 57
Siriagus 12:8178fad5e660 58 /** Draws an image/sprite to the lcd with origin in upper-left corner of the lcd
Siriagus 12:8178fad5e660 59 * @param img Array where 1 corresponds to opaque and 0 corresponds to blank
Siriagus 12:8178fad5e660 60 */
Siriagus 12:8178fad5e660 61 template <size_t rows, size_t cols>
Siriagus 12:8178fad5e660 62 void drawImage(const int (&img)[rows][cols]) { drawImage(img, 0, 0); }
Siriagus 4:d6661b976359 63
Siriagus 4:d6661b976359 64 protected:
Siriagus 4:d6661b976359 65 N5110 *lcd;
Siriagus 4:d6661b976359 66 InputManager *input;
Siriagus 4:d6661b976359 67
Siriagus 4:d6661b976359 68 private:
Siriagus 4:d6661b976359 69 StateManager *fsm;
Siriagus 4:d6661b976359 70
Siriagus 1:0cfe2255092a 71 };
Siriagus 1:0cfe2255092a 72
Siriagus 12:8178fad5e660 73 // Template functions needs to be declared in the header file
Siriagus 12:8178fad5e660 74 // TODO: Add functions for inverse drawing
Siriagus 12:8178fad5e660 75 template<size_t rows, size_t cols>
Siriagus 12:8178fad5e660 76 void State::drawImage(const int (&img)[rows][cols], int x, int y)
Siriagus 12:8178fad5e660 77 {
Siriagus 12:8178fad5e660 78 for (int i = 0; i < rows; ++i)
Siriagus 12:8178fad5e660 79 {
Siriagus 12:8178fad5e660 80 // Skip if outside dimensions of LCD
Siriagus 12:8178fad5e660 81 if (y + i < 0) continue;
Siriagus 12:8178fad5e660 82 else if (y + i >= HEIGHT) break; // Drawing top to bottom, so all succeding points will also be outside
Siriagus 12:8178fad5e660 83
Siriagus 12:8178fad5e660 84 for (int j = 0; j < cols; ++j)
Siriagus 12:8178fad5e660 85 {
Siriagus 12:8178fad5e660 86 // Dimensions check. Draws left to right.
Siriagus 12:8178fad5e660 87 if (x + j < 0) continue;
Siriagus 12:8178fad5e660 88 else if (x + j >= WIDTH) break;
Siriagus 12:8178fad5e660 89
Siriagus 12:8178fad5e660 90 if (img[i][j])
Siriagus 12:8178fad5e660 91 lcd->setPixel(x+j,y+i);
Siriagus 12:8178fad5e660 92
Siriagus 12:8178fad5e660 93 }
Siriagus 12:8178fad5e660 94 }
Siriagus 12:8178fad5e660 95 }
Siriagus 1:0cfe2255092a 96 #endif