ELEC2645 (2015/16)
Space Invaders - Embedded Systems Project 15/16 - Avinash Patel 200860407
Dependencies: Joystick N5110 SDFileSystem mbed
Diff: main.cpp
- Revision:
- 4:a99953ef9e42
- Parent:
- 3:544b59d60ab8
- Child:
- 5:34855f712350
--- a/main.cpp Sun Mar 27 18:47:07 2016 +0000
+++ b/main.cpp Thu Mar 31 16:03:26 2016 +0000
@@ -14,6 +14,7 @@
#define RIGHT 1
//Preprocessor for screen map
+/*
#define EMPTY 0
#define CANNON 1
#define SMALL 2
@@ -22,6 +23,7 @@
#define BARRIER 5
#define UFO 6
#define CANNON_SHOT 7
+*/
//Joystick Class
class Joystick
@@ -153,7 +155,15 @@
Ticker update_screen;
//Map holding pixel data of screen
-short screen_map[84][48];
+int screen_map[84][48];
+const int empty_pixel = 0;
+const int cannon_pixel = 1;
+const int first_barrier_pixel = 2;
+const int first_large_invader_pixel = 5;
+const int first_medium_invader_pixel = 10;
+const int first_small_invader_pixel = 15;
+const int ufo_pixel = 20;
+const int cannon_shot_pixel = 21;
//Ship bit-map and location
int cannon_xpos = 24;
@@ -331,7 +341,7 @@
update_screen.attach(&update_screen_isr, 0.05);
move_cannon.attach(&move_cannon_isr, 0.05);
- move_enemies.attach(&move_enemies_isr, 1);
+ move_enemies.attach(&move_enemies_isr, 0.5);
InitSmallInvaders();
InitMediumInvaders();
@@ -385,7 +395,7 @@
//Add 4 to cannon x_pos to get shot x_pos
cannon_shot_x_pos = cannon_xpos + 4;
cannon_shot_y_pos = 40;
- move_cannon_shot.attach(&move_cannon_shot_isr, 0.1);
+ move_cannon_shot.attach(&move_cannon_shot_isr, 0.05);
}
}
//Move the cannon's shot
@@ -397,7 +407,7 @@
//Loops throught the shot bitmap and clears the pixels in the screen map
for (int row = 0; row < 3; row++) {
//Clears the position where the bullet was
- screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] = EMPTY;
+ screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] = empty_pixel;
}
//Increments the shot going up the screen
@@ -405,41 +415,49 @@
//Checks to see what the shot hits. If it hits nothing the shot gets pushed to the screen map
for (int row = 0; row < 3; row++) {
- if (screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] == SMALL)
+ int object_no;
+ if (screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] >= first_small_invader_pixel && screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] < (first_small_invader_pixel + 5))
{
- pc.printf("Small Hit\n");
- cannon_shot_on_screen = false;
- move_cannon_shot.detach();
- break;
- } else if (screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] == MEDIUM) {
- pc.printf("Medium Hit\n");
+ object_no = screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] - first_small_invader_pixel;
+ small_invader[object_no].is_alive = false;
+ pc.printf("Small (%d) Hit\n", object_no);
cannon_shot_on_screen = false;
move_cannon_shot.detach();
break;
- } else if (screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] == LARGE) {
- pc.printf("Large Hit\n");
+ } else if (screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] >= first_medium_invader_pixel && screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] < (first_medium_invader_pixel + 5)) {
+ object_no = screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] - first_medium_invader_pixel;
+ medium_invader[object_no].is_alive = false;
+ pc.printf("Medium (%d) Hit\n", object_no);
cannon_shot_on_screen = false;
move_cannon_shot.detach();
break;
- } else if (screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] == BARRIER) {
- pc.printf("Barrier Hit\n");
+ } else if (screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] >= first_large_invader_pixel && screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] < (first_large_invader_pixel + 5)) {
+ object_no = screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] - first_large_invader_pixel;
+ large_invader[object_no].is_alive = false;
+ pc.printf("Large (%d) Hit\n", object_no);
cannon_shot_on_screen = false;
move_cannon_shot.detach();
break;
- } else if (screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] == UFO) {
+ } else if (screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] >= first_barrier_pixel && screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] < (first_barrier_pixel + 3)) {
+ object_no = screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] - first_barrier_pixel;
+ pc.printf("Barrier (%d) Hit\n", object_no);
+ cannon_shot_on_screen = false;
+ move_cannon_shot.detach();
+ break;
+ } else if (screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] == ufo_pixel) {
pc.printf("UFO Hit\n");
cannon_shot_on_screen = false;
move_cannon_shot.detach();
break;
} else {
- screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] = CANNON_SHOT;
+ screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] = cannon_shot_pixel;
}
}
} else {
//Loops throught the shot bitmap and clears the pixels in the screen map
for (int row = 1; row < 3; row++) {
//Clears the position where the bullet was
- screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] = EMPTY;
+ screen_map[cannon_shot_x_pos][cannon_shot_y_pos + row] = empty_pixel;
}
cannon_shot_on_screen = false;
}
@@ -478,10 +496,11 @@
ShiftInvaderXPositions();
+
DrawSmallInvaders();
DrawMediumInvaders();
DrawLargeInvaders();
- DrawUFO();
+ //DrawUFO();
invaders_in_state2 = !invaders_in_state2;
@@ -560,7 +579,7 @@
for (int row = 0; row < 5; row++) {
if(cannon_bitmap[row][col]) {
//lcd.clearPixel(cannon_xpos+col, cannon_ypos+row);
- screen_map[cannon_xpos+col][cannon_ypos+row] = EMPTY;
+ screen_map[cannon_xpos+col][cannon_ypos+row] = empty_pixel;
}
}
}
@@ -583,7 +602,7 @@
for (int row = 0; row < 5; row++) {
if(cannon_bitmap[row][col]) {
//lcd.setPixel(cannon_xpos+col, cannon_ypos+row);
- screen_map[cannon_xpos+col][cannon_ypos+row] = CANNON;
+ screen_map[cannon_xpos+col][cannon_ypos+row] = cannon_pixel;
}
}
}
@@ -610,18 +629,18 @@
if (!invaders_in_state2) {
for (int col = 0; col < 8; col++) {
for (int row = 0; row < 6; row++) {
- if(small_invader_bitmap_1[row][col]) {
+ if(small_invader_bitmap_1[row][col] && small_invader[i].x_pos + col >= 0 && small_invader[i].x_pos + col < 84) {
//lcd.clearPixel(small_invader[i].x_pos + col, small_invader[i].y_pos + row);
- screen_map[small_invader[i].x_pos + col][small_invader[i].y_pos + row] = EMPTY;
+ screen_map[small_invader[i].x_pos + col][small_invader[i].y_pos + row] = empty_pixel;
}
}
}
} else {
for (int col = 0; col < 8; col++) {
for (int row = 0; row < 6; row++) {
- if(small_invader_bitmap_2[row][col]) {
+ if(small_invader_bitmap_2[row][col] && small_invader[i].x_pos + col >= 0 && small_invader[i].x_pos + col < 84) {
//lcd.clearPixel(small_invader[i].x_pos + col, small_invader[i].y_pos + row);
- screen_map[small_invader[i].x_pos + col][small_invader[i].y_pos + row] = EMPTY;
+ screen_map[small_invader[i].x_pos + col][small_invader[i].y_pos + row] = empty_pixel;
}
}
}
@@ -641,7 +660,7 @@
for (int row = 0; row < 6; row++) {
if(small_invader_bitmap_1[row][col]) {
//lcd.setPixel(small_invader[i].x_pos + col, small_invader[i].y_pos + row);
- screen_map[small_invader[i].x_pos + col][small_invader[i].y_pos + row] = SMALL;
+ screen_map[small_invader[i].x_pos + col][small_invader[i].y_pos + row] = first_small_invader_pixel + i;
}
}
}
@@ -650,7 +669,7 @@
for (int row = 0; row < 6; row++) {
if(small_invader_bitmap_2[row][col]) {
//lcd.setPixel(small_invader[i].x_pos + col, small_invader[i].y_pos + row);
- screen_map[small_invader[i].x_pos + col][small_invader[i].y_pos + row] = SMALL;
+ screen_map[small_invader[i].x_pos + col][small_invader[i].y_pos + row] = first_small_invader_pixel + i;
}
}
}
@@ -675,18 +694,18 @@
if (!invaders_in_state2) {
for (int col = 0; col < 10; col++) {
for (int row = 0; row < 6; row++) {
- if(medium_invader_bitmap_1[row][col]) {
+ if(medium_invader_bitmap_1[row][col] && medium_invader[i].x_pos + col >= 0 && medium_invader[i].x_pos + col < 84) {
//lcd.clearPixel(medium_invader[i].x_pos + col, medium_invader[i].y_pos + row);
- screen_map[medium_invader[i].x_pos + col][medium_invader[i].y_pos + row] = EMPTY;
+ screen_map[medium_invader[i].x_pos + col][medium_invader[i].y_pos + row] = empty_pixel;
}
}
}
} else {
for (int col = 0; col < 10; col++) {
for (int row = 0; row < 6; row++) {
- if(medium_invader_bitmap_2[row][col]) {
+ if(medium_invader_bitmap_2[row][col] && medium_invader[i].x_pos + col >= 0 && medium_invader[i].x_pos + col < 84) {
//lcd.clearPixel(medium_invader[i].x_pos + col, medium_invader[i].y_pos + row);
- screen_map[medium_invader[i].x_pos + col][medium_invader[i].y_pos + row] = EMPTY;
+ screen_map[medium_invader[i].x_pos + col][medium_invader[i].y_pos + row] = empty_pixel;
}
}
}
@@ -706,7 +725,7 @@
for (int row = 0; row < 6; row++) {
if(medium_invader_bitmap_1[row][col]) {
//lcd.setPixel(medium_invader[i].x_pos + col, medium_invader[i].y_pos + row);
- screen_map[medium_invader[i].x_pos + col][medium_invader[i].y_pos + row] = MEDIUM;
+ screen_map[medium_invader[i].x_pos + col][medium_invader[i].y_pos + row] = first_medium_invader_pixel + i;
}
}
}
@@ -715,7 +734,7 @@
for (int row = 0; row < 6; row++) {
if(medium_invader_bitmap_2[row][col]) {
//lcd.setPixel(medium_invader[i].x_pos + col, medium_invader[i].y_pos + row);
- screen_map[medium_invader[i].x_pos + col][medium_invader[i].y_pos + row] = MEDIUM;
+ screen_map[medium_invader[i].x_pos + col][medium_invader[i].y_pos + row] = first_medium_invader_pixel + i;
}
}
}
@@ -741,18 +760,18 @@
if (!invaders_in_state2) {
for (int col = 0; col < 12; col++) {
for (int row = 0; row < 6; row++) {
- if(large_invader_bitmap_1[row][col]) {
+ if(large_invader_bitmap_1[row][col] && large_invader[i].x_pos + col >= 0 && large_invader[i].x_pos + col < 84) {
///lcd.clearPixel(large_invader[i].x_pos + col, large_invader[i].y_pos + row);
- screen_map[large_invader[i].x_pos + col][large_invader[i].y_pos + row] = EMPTY;
+ screen_map[large_invader[i].x_pos + col][large_invader[i].y_pos + row] = empty_pixel;
}
}
}
} else {
for (int col = 0; col < 12; col++) {
for (int row = 0; row < 6; row++) {
- if(large_invader_bitmap_2[row][col]) {
+ if(large_invader_bitmap_2[row][col] && large_invader[i].x_pos + col >= 0 && large_invader[i].x_pos + col < 84) {
//lcd.clearPixel(large_invader[i].x_pos + col, large_invader[i].y_pos + row);
- screen_map[large_invader[i].x_pos + col][large_invader[i].y_pos + row] = EMPTY;
+ screen_map[large_invader[i].x_pos + col][large_invader[i].y_pos + row] = empty_pixel;
}
}
}
@@ -772,7 +791,7 @@
for (int row = 0; row < 6; row++) {
if(large_invader_bitmap_1[row][col]) {
//lcd.setPixel(large_invader[i].x_pos + col, large_invader[i].y_pos + row);
- screen_map[large_invader[i].x_pos + col][large_invader[i].y_pos + row] = LARGE;
+ screen_map[large_invader[i].x_pos + col][large_invader[i].y_pos + row] = first_large_invader_pixel + i;
}
}
}
@@ -781,7 +800,7 @@
for (int row = 0; row < 6; row++) {
if(large_invader_bitmap_2[row][col]) {
//lcd.setPixel(large_invader[i].x_pos + col, large_invader[i].y_pos + row);
- screen_map[large_invader[i].x_pos + col][large_invader[i].y_pos + row] = LARGE;
+ screen_map[large_invader[i].x_pos + col][large_invader[i].y_pos + row] = first_large_invader_pixel + i;
}
}
}
@@ -845,11 +864,11 @@
for (int row = 0; row < 8; row++) {
if (barrier[i].before_bitmap[row][col]) {
//lcd.clearPixel(barrier[i].x_pos + col, barrier[i].y_pos + row);
- screen_map[barrier[i].x_pos + col][barrier[i].y_pos + row] = EMPTY;
+ screen_map[barrier[i].x_pos + col][barrier[i].y_pos + row] = empty_pixel;
}
if (barrier[i].after_bitmap[row][col]) {
//lcd.setPixel(barrier[i].x_pos + col, barrier[i].y_pos + row);
- screen_map[barrier[i].x_pos + col][barrier[i].y_pos + row] = BARRIER;
+ screen_map[barrier[i].x_pos + col][barrier[i].y_pos + row] = first_barrier_pixel + i;
}
}
}
@@ -927,7 +946,7 @@
for (int row = 0; row < row_no; row++) {
if(ufo_bitmap[row][col]) {
//lcd.setPixel(x_pos + col, y_pos + row);
- screen_map[x_pos + col][y_pos + row] = UFO;
+ screen_map[x_pos + col][y_pos + row] = ufo_pixel;
}
}
}