Diff: enemy.cpp

Revision:

0:3817adfaeb06

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/enemy.cpp	Tue Mar 15 19:09:51 2016 +0000
@@ -0,0 +1,83 @@
+#include "enemy.h"
+#include "missile.h"
+
+void draw_enemy(int blk_x, int blk_y, int enemy_color, int e_width, int e_height)
+{
+    uLCD.filled_rectangle(blk_x,blk_y,blk_x+e_width,blk_y-e_height,enemy_color);
+}
+
+void erase_enemy(int blk_x, int blk_y, int enemy_color, int e_width, int e_height)
+{
+    uLCD.filled_rectangle(blk_x,blk_y,blk_x+e_width,blk_y-e_height,BACKGROUND_COLOR);
+}
+
+int move_enemy(enemy_t * g, int MOVE_DOWN, int DIRECTION)
+{
+    if (g->status == ENEMY_ALIVE)
+    {   
+        if (DIRECTION == 1)
+        {
+            enemy_erase(g);
+            g->enemy_blk_x += 1;
+            enemy_show(g);
+            
+            if (g->enemy_blk_y >= 110)
+            {
+                MOVE_DOWN = 2;
+            }
+        }
+        else if (DIRECTION == 2)
+        {
+            enemy_erase(g);
+            g->enemy_blk_x -= 1;
+            enemy_show(g);   
+            
+            if (g->enemy_blk_y >= 110)
+            {
+                MOVE_DOWN = 2;
+            }
+        }
+        
+        if ((g->enemy_blk_x+g->enemy_width) > (128-g->enemy_width)
+        || (g->enemy_blk_x < (0+g->enemy_width)))
+        {
+            MOVE_DOWN = 1;
+        }    
+    }
+    return MOVE_DOWN;
+}
+
+void enemy_init(enemy_t * g, unsigned int blk_x, unsigned int blk_y, unsigned int color)
+{
+    g->enemy_blk_x = blk_x;
+    g->enemy_blk_y = blk_y;
+    g->enemy_color = color;
+    g->enemy_width = 8;
+    g->enemy_height = 8;
+    g->status = ENEMY_ALIVE;
+}
+
+void enemy_show(enemy_t * g)
+{
+    draw_enemy(g->enemy_blk_x, g->enemy_blk_y, g->enemy_color, g->enemy_width, g->enemy_height);
+}
+
+void enemy_erase(enemy_t * g)
+{
+    erase_enemy(g->enemy_blk_x, g->enemy_blk_y, g->enemy_color, g->enemy_width, g->enemy_height);
+}
+
+int check_enemy(enemy_t * g, missile_t * h)
+{
+    int enemy_died = 0;
+    if (g->status == ENEMY_ALIVE 
+    && ((h->missile_blk_x >= g->enemy_blk_x) && (h->missile_blk_x <= (g->enemy_blk_x + g->enemy_width)))) 
+    {
+        enemy_erase(g);
+        g->status = ENEMY_DEAD;
+        enemy_died = 1;
+        h->status = PLAYER_MISSILE_EXPLODED;                         
+    }  
+    
+    return enemy_died;
+}
\ No newline at end of file