/*広告*/

/*ＳＴＧの作り方　中間ソース５*/
/*目次へ戻る*/
#include "DxLib.h"

#define LEFT_LIMIT -220
#define RIGHT_LIMIT 220
#define TOP_LIMIT 240
#define BOTTOM_LIMIT -240

#define PLAYER_SHOT_MAX 30

#define DISP_ENEMY_MAX 5
#define STAGE_ENEMY_MAX 10
#define ENEMY_DATA_MAX 9

void my_init_back_img(void);
void my_init_variable(void);
void my_init_player(void);
void my_init_player_shot(void);
void my_init_enemy(void);

void my_set_player_shot(int );
void my_set_enemy(void);

void my_move_back(void);
void my_move_player(void);
void my_move_player_shot(void);
void my_move_enemy(void);

void my_to_center(void);

void my_draw_back(void);
void my_draw_player(void);
void my_draw_player_shot(void);
void my_draw_enemy(void);
void my_draw_score_board(void);

void my_timer(void);

int my_get_key(void);

struct PLAYER{
	double x, y;
	double draw_x, draw_y;
	int speed;
	int shot_type;
	int bomb;
	int power;
	int life;
	double range;
};

struct PLAYER p1;

struct PLAYER_SHOT{
	double x[5];
	double y[5];
	double draw_x[5];
	double draw_y[5];
	int init_flag;
	int move_flag;
	int move_type;
	int flag[5];
	double angle[5];
	int max_bullet;
	int gamecount_point;
	double range;
};

struct PLAYER_SHOT ps1[PLAYER_SHOT_MAX];

struct ENEMY{
	int serial_num;
	int appear_point;
	double first_x, first_y;
	double x, y;
	double draw_x, draw_y;
	double m_x,m_y;
	double a_x,a_y;
	double f_x,f_y;
	int init_flag;
	int move_flag;
	double angle;
	int move_type;
	int shot_type;
	int pattern;
	double var[5];
	int gamecount_point;
	int power;
	double range;
	int item_flag;
};

struct ENEMY enemy[DISP_ENEMY_MAX];

int ary_enemy_data[STAGE_ENEMY_MAX * ENEMY_DATA_MAX] = {
	0,100,-180,260,0,0,1,10,0,
	1,300,-140,260,0,0,1,10,0,
	2,500,-100,260,0,0,1,10,0,
	3,700,-60,260,0,0,1,10,0,
	4,900,-20,260,0,0,1,10,0,
	5,1100,20,260,0,0,1,10,0,
	6,1300,60,260,0,0,1,10,0,
	7,1500,100,260,0,0,1,10,0,
	8,1700,140,260,0,0,1,10,0,
	9,1900,180,260,0,0,1,10,0
};

int key[256];

double back_img_y;
int back_img;

int gamecount;

int Color_White;
int Color_Gray;
int Color_Red;

int WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int){
	ChangeWindowMode(TRUE);
	DxLib_Init();
	SetDrawScreen(DX_SCREEN_BACK);

	my_init_back_img();
	my_init_variable();
	my_init_player();
	my_init_player_shot();
	my_init_enemy();

	while (ScreenFlip()==0 && ProcessMessage()==0
		 && ClearDrawScreen()==0 && my_get_key()==0){

		my_set_enemy();

		my_move_back();
		my_move_player();
		my_move_player_shot();
		my_move_enemy();

		my_to_center();

		my_draw_back();
		my_draw_player();
		my_draw_player_shot();
		my_draw_enemy();
		my_draw_score_board();

		my_timer();
	}
	DxLib_End();
	return 0;
}

void my_init_back_img(){
	back_img = LoadGraph("../back_img.jpg");
}

void my_init_variable(){
	gamecount = 0;
	Color_White = GetColor(255, 255, 255);
	Color_Gray = GetColor(100, 100, 100);
	Color_Red = GetColor(255, 0, 0);
	back_img_y = 0;
}

void my_init_player(){
	p1.x = 0;
	p1.y = -200;
	p1.draw_x = 0;
	p1.draw_y = 0;
	p1.speed = 4;
	p1.shot_type = 0;
	p1.bomb = 1;
	p1.power = 1;
	p1.life = 3;
	p1.range = 10;
}

void my_init_player_shot(){
	for(int i = 0;i < PLAYER_SHOT_MAX;i++){
		ps1[i].init_flag = 0;
		ps1[i].move_flag = 0;
		ps1[i].move_type = 0;
		ps1[i].max_bullet = 0;
		ps1[i].gamecount_point = 0;
		ps1[i].range = 10;
		for(int j = 0;j < 5;j++){
			ps1[i].x[j] = 0;
			ps1[i].y[j] = 0;
			ps1[i].draw_x[j] = 0;
			ps1[i].draw_y[j] = 0;
			ps1[i].flag[j] = 0;
			ps1[i].angle[j] = 0;
		}
	}
}

void my_init_enemy(){
	for (int i = 0; i < DISP_ENEMY_MAX; i++){
		enemy[i].serial_num = 0;
		enemy[i].appear_point = 0;
		enemy[i].first_x = 0;
		enemy[i].first_y = 0;
		enemy[i].x = 0;
		enemy[i].y = 0;
		enemy[i].draw_x = 0;
		enemy[i].draw_y = 0;
		enemy[i].m_x = 0;
		enemy[i].m_y = 0;
		enemy[i].a_x = 0;
		enemy[i].a_y = 0;
		enemy[i].f_x = 0;
		enemy[i].f_y = 0;
		enemy[i].init_flag = 0;
		enemy[i].move_flag = 0;
		enemy[i].angle = 0;
		enemy[i].move_type = 0;
		enemy[i].shot_type = 0;
		enemy[i].pattern = 0;
		enemy[i].gamecount_point = 0;
		enemy[i].power = 0;
		enemy[i].range = 0;
		enemy[i].item_flag = 0;
		for(int j = 0;j < 5;j++){
			enemy[i].var[j] = 0;
		}
	}
}

void my_move_back(){
	back_img_y++;
	if (back_img_y > 480){
		back_img_y = 0;
	}
}

void my_move_player(){
	if (key[KEY_INPUT_RIGHT] >= 1 && p1.x < RIGHT_LIMIT){
		p1.x += p1.speed;
	}
	if (key[KEY_INPUT_DOWN] >= 1 && p1.y > BOTTOM_LIMIT){
		p1.y -= p1.speed;
	}
	if (key[KEY_INPUT_LEFT] >= 1 && p1.x > LEFT_LIMIT){
		p1.x -= p1.speed;
	}
	if (key[KEY_INPUT_UP] >= 1 && p1.y < TOP_LIMIT){
		p1.y += p1.speed;
	}
	if (key[KEY_INPUT_Z] % 5 == 1){
		my_set_player_shot(p1.shot_type);
	}
}

void my_set_player_shot(int shot_type){
	for(int i = 0;i < PLAYER_SHOT_MAX;i++){
		if(ps1[i].move_flag == 0){
			ps1[i].move_type = shot_type;
			ps1[i].move_flag = 1;
			break;
		}
	}
}

void my_move_player_shot(){
	for(int i = 0;i < PLAYER_SHOT_MAX;i++){
		if(ps1[i].move_flag == 1){
			switch(ps1[i].move_type){
			case 0:
				if(ps1[i].init_flag == 0){
					ps1[i].max_bullet = 1;
					for(int j = 0;j < ps1[i].max_bullet;j++){
						ps1[i].x[j] = p1.x;
						ps1[i].y[j] = p1.y;
						ps1[i].flag[j] = 1;
					}
					ps1[i].gamecount_point = gamecount;
					ps1[i].init_flag = 1;
				}
				else{
					if(gamecount < ps1[i].gamecount_point + 100){
						for(int j = 0;j < ps1[i].max_bullet;j++){
							ps1[i].y[j] += 8;
						}
					}
					else{
						ps1[i].move_flag = 0;
						ps1[i].init_flag = 0;
					}
				}
				break;
			default:
				break;
			}
		}
	}
}

void my_set_enemy(){
	for (int i = 0; i < STAGE_ENEMY_MAX; i++){
		if (ary_enemy_data[(i * ENEMY_DATA_MAX) + 1] == gamecount && gamecount > 0){
			for (int j = 0; j < DISP_ENEMY_MAX; j++){
				if (enemy[j].move_flag == 0){
					enemy[j].move_flag = 1;
					enemy[j].serial_num = ary_enemy_data[i * ENEMY_DATA_MAX];
					enemy[j].appear_point = ary_enemy_data[(i * ENEMY_DATA_MAX) + 1];
					enemy[j].first_x = ary_enemy_data[(i * ENEMY_DATA_MAX) + 2];
					enemy[j].first_y = ary_enemy_data[(i * ENEMY_DATA_MAX) + 3];
					enemy[j].move_type = ary_enemy_data[(i * ENEMY_DATA_MAX) + 4];
					enemy[j].shot_type = ary_enemy_data[(i * ENEMY_DATA_MAX) + 5];
					enemy[j].power = ary_enemy_data[(i * ENEMY_DATA_MAX) + 6];
					enemy[j].range = ary_enemy_data[(i * ENEMY_DATA_MAX) + 7];
					enemy[j].item_flag = ary_enemy_data[(i * ENEMY_DATA_MAX) + 8];
					break;
				}
			}
		}
	}
}

void my_move_enemy(){
	for (int i = 0; i < DISP_ENEMY_MAX; i++){
		if (enemy[i].move_flag == 1){
			switch (enemy[i].move_type){
			case 0:
				if (enemy[i].init_flag == 0){
					enemy[i].x = enemy[i].first_x;
					enemy[i].y = 260;
					enemy[i].gamecount_point = gamecount;
					enemy[i].init_flag = 1;
				}
				else{
					if (gamecount < enemy[i].gamecount_point + 500){
						if (gamecount < enemy[i].gamecount_point + 220){
							enemy[i].y--;
						}
						if (gamecount > enemy[i].gamecount_point + 260){
							enemy[i].y++;
						}
					}
					else{
						enemy[i].move_flag = 0;
						enemy[i].init_flag = 0;
					}
				}
				break;
			default:
				break;
			}
		}
	}
}

void my_to_center(){
	p1.draw_x = p1.x + 220;
	p1.draw_y = ((-1) * p1.y) + 240;

	for(int i = 0;i < PLAYER_SHOT_MAX;i++){
		if(ps1[i].move_flag == 1 && ps1[i].init_flag == 1){
			for(int j = 0;j < ps1[i].max_bullet;j++){
				ps1[i].draw_x[j] = ps1[i].x[j] + 220;
				ps1[i].draw_y[j] = ((-1) * ps1[i].y[j]) + 240; 
			}
		}
	}

	for (int i = 0; i < DISP_ENEMY_MAX; i++){
		if (enemy[i].move_flag == 1 && enemy[i].init_flag == 1){
			enemy[i].draw_x = enemy[i].x + 220;
			enemy[i].draw_y = ((-1) * enemy[i].y) + 240;
		}
	}
}

void my_draw_back(){
	DrawGraph(0, back_img_y, back_img, TRUE);
	DrawGraph(0, back_img_y - 480, back_img, TRUE);
	DrawLine(0, 240, 440, 240, Color_White);
	DrawLine(220, 0, 220, 480, Color_White);
	DrawFormatString(220, 240, Color_White, "(0,0)");
}

void my_draw_player(){
	DrawFormatString(p1.draw_x, p1.draw_y, Color_White, "Ｐ");
}

void my_draw_player_shot(){
	for(int i = 0;i < PLAYER_SHOT_MAX;i++){
		if(ps1[i].move_flag == 1 && ps1[i].init_flag == 1){
			for(int j = 0;j < ps1[i].max_bullet;j++){
				if(ps1[i].flag[j] == 1){
					DrawFormatString(ps1[i].draw_x[j],ps1[i].draw_y[j],Color_White, "弾");
				}
			}
		}
	}
}

void my_draw_enemy(){
	for (int i = 0; i < DISP_ENEMY_MAX; i++){
		if (enemy[i].move_flag == 1 && enemy[i].init_flag == 1){
			DrawFormatString(enemy[i].draw_x, enemy[i].draw_y, Color_Red, "e[%d]", enemy[i].serial_num);
		}
	}
}

void my_draw_score_board(){
	DrawBox(440,0,640,480,Color_Gray,true);
	DrawFormatString(460, 20, Color_White, "gamecount = %d", gamecount);
	DrawFormatString(460, 380, Color_White, "操作方法");
	DrawFormatString(460, 400, Color_White, "移動:矢印キー");
	DrawFormatString(460, 420, Color_White, "ショット:Ｚキー");
}

void my_timer(){
	gamecount++;
}
	
int my_get_key(){
	char keys[256];
	GetHitKeyStateAll(keys);
	for (int i = 0; i < 256; i++){
		if (keys[i] != 0){
			key[i]++;
		}
		else{
			key[i] = 0;
		}
	}
	return 0;
}
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