File content as of revision 15:afeefa3ceb61:

#include "Graphics.h"

namespace Graphics {
    const int SCREEN_HEIGHT = 84;
    const int SCREEN_WIDTH = 48;
    const int BLOCK_SIZE = 4;
    const int BORDER_SIZE = 2;
    
    N5110 * lcd;
    
    // "private" methods
    void drawPoint(int x, int y);
    void drawLine(int x1, int y1, int x2, int y2);
    void drawBox(int x1, int y1, int x2, int y2);
    void drawDottedLine(int x1, int y1, int x2, int y2);
    int gridYToScreenX(int grid_y);
    int gridXToScreenY(int grid_x);
    
    void init() {
        lcd = new N5110(PTC9,PTC0,PTC7,PTD2,PTD1,PTC11);
        lcd->init();
        lcd->setContrast(0.5);
        lcd->setBrightness(0);
    }
    
    void deinit() {
        delete lcd;
    }
    
    void clear() {
        lcd->clear();
    }
    
    void render() {
        lcd->refresh();
    }
    
    void drawPoint(int x, int y) {
        lcd->setPixel(x, y, true);
    }
    
    void drawLine(int x1, int y1, int x2, int y2) {
        lcd->drawLine(x1, y1, x2, y2, 1);
    }
    
    void drawDottedLine(int x1, int y1, int x2, int y2) {
        lcd->drawLine(
            y1,// f(0) -> S_W - 1, f(S_W - 1) = 0
            (SCREEN_WIDTH - 1) - x1,
            y2,
            (SCREEN_WIDTH - 1) - x2,
            2 // dotted
        );
    }
    
    void drawBox(int x1, int y1, int x2, int y2) {
        drawLine(x1, y1, x2, y1);
        drawLine(x2, y1, x2, y2);
        drawLine(x2, y2, x1, y2);
        drawLine(x1, y2, x1, y1);
    }
    
    void drawBlock(int grid_x, int grid_y) {
        // screen coords
        int x = gridYToScreenX(grid_y);
        int y = gridXToScreenY(grid_x);
        drawBox(x, y, x + 3, y - 3);
        drawPoint(x + 2, y - 2); 
    }
    
    void drawBorder() {
        drawDottedLine(0, 0, 0, SCREEN_HEIGHT - 1); //
        drawDottedLine(1, 1, 1, SCREEN_HEIGHT - 2);
        
        drawDottedLine(0, SCREEN_HEIGHT - 1, SCREEN_WIDTH - 1 - 5, SCREEN_HEIGHT - 1);
        drawDottedLine(1, SCREEN_HEIGHT - 2, SCREEN_WIDTH - 2 - 5, SCREEN_HEIGHT - 2);
        
        drawDottedLine(SCREEN_WIDTH - 1 - 5, SCREEN_HEIGHT - 1, SCREEN_WIDTH - 1 - 5, 0);
        drawDottedLine(SCREEN_WIDTH - 2 - 5, SCREEN_HEIGHT - 2, SCREEN_WIDTH - 2 - 5, 1);
    }
    
    int gridYToScreenX(int grid_y) {
        return grid_y * BLOCK_SIZE + BORDER_SIZE;
    }
    
    int gridXToScreenY(int grid_x) {
        return SCREEN_WIDTH - (grid_x * BLOCK_SIZE) - BORDER_SIZE;
    }
};