i can't explain error in game trying make. i'm pretty new game programming, , following tutorial on youtube. far can see doing same in video, still error.
error: uncompilable source code - tilegame.entities.creatures.player not abstract , not override abstract method die() in tilegame.entities.entity @ tilegame.entities.creatures.creature.(creature.java:11)
entity class:
package tilegame.entities; import java.awt.graphics; import java.awt.rectangle; import tilegame.game; import tilegame.handler; public abstract class entity { public static final int default_health = 10; protected handler handler; protected float x, y; protected int width, height; protected int health; protected boolean active = true; protected rectangle bounds; public entity(handler handler, float x, float y, int width, int height){ this.handler = handler; this.x = x; this.y = y; this.width = width; this.height = height; health = default_health; bounds = new rectangle(0, 0, width, height); } public abstract void tick(); public abstract void render(graphics g); public abstract void die(); public void hurt(int amt){ health += amt; if(health <= 0){ active = false; die(); } } public boolean checkentitycollisions(float xoffset, float yoffset){ for(entity e : handler.getworld().getentitymanager().getentity()){ if(e.equals(this)) continue; if(e.getcollisionbounds(0f, 0f).intersects(getcollisionbounds(xoffset, yoffset))) return true; } return false; } public rectangle getcollisionbounds(float xoffset, float yoffset){ return new rectangle ((int) (x + bounds.x + xoffset), (int) (y + bounds.y + yoffset), bounds.width, bounds.height); } public float getx() { return x; } public void setx(float x) { this.x = x; } public float gety() { return y; } public void sety(float y) { this.y = y; } public int getwidth() { return width; } public void setwidth(int width) { this.width = width; } public int getheight() { return height; } public void setheight(int height) { this.height = height; } public int gethealth() { return health; } public void sethealth(int health) { this.health = health; } public boolean isactive() { return active; } public void setactive(boolean active) { this.active = active; } } player class:
package tilegame.entities.creatures; import java.awt.color; import java.awt.graphics; import java.awt.image.bufferedimage; import tilegame.game; import tilegame.handler; import tilegame.gfx.animation; import tilegame.gfx.assets; public class player extends creature{ //animations private animation animdown, animup, animleft, animright; public player(handler handler, float x, float y){ super(handler, x, y, creature.default_creature_width, creature.default_creature_height); bounds.x = 20; bounds.y = 24; bounds.width = 23; bounds.height = 39; //animations animdown = new animation(250, assets.player_down); animup = new animation(250, assets.player_up); animleft = new animation(250, assets.player_left); animright = new animation(250, assets.player_right); } @override public void tick() { //animations animdown.tick(); animup.tick(); animleft.tick(); animright.tick(); //movement getinput(); move(); handler.getgamecamera().centeronentity(this); } @override public void die() { system.out.println("you died"); } private void getinput(){ xmove = 0; ymove = 0; if(handler.getkeymanager().up) ymove = -speed; if(handler.getkeymanager().down) ymove = speed; if(handler.getkeymanager().left) xmove = -speed; if(handler.getkeymanager().right) xmove = speed; } @override public void render(graphics g) { g.drawimage(getcurrentanimationframe(), (int) (x - handler.getgamecamera().getxoffset()), (int) (y - handler.getgamecamera().getyoffset()), width, height, null); //show bounding box /*g.setcolor(color.red); g.fillrect((int) (x + bounds.x - handler.getgamecamera().getxoffset()), (int) (y + bounds.y - handler.getgamecamera().getyoffset()), bounds.width, bounds.height);*/ } private bufferedimage getcurrentanimationframe(){ if(xmove < 0){ return animleft.getcurrentframe(); }else if(xmove > 0){ return animright.getcurrentframe(); }else if(ymove < 0){ return animup.getcurrentframe(); }else return animdown.getcurrentframe(); } } creature class:
package tilegame.entities.creatures; import java.awt.graphics; import tilegame.game; import tilegame.handler; import tilegame.entities.entity; import tilegame.tiles.tile; public abstract class creature extends entity{ public static final float default_speed = 3.0f; public static final int default_creature_width = 64, default_creature_height = 64; protected float speed; protected float xmove, ymove; public creature(handler handler, float x, float y, int width, int height) { super(handler, x, y, width, height); speed = default_speed; xmove = 0; ymove = 0; } public void move(){ if(!checkentitycollisions(xmove, 0f)) movex(); if(!checkentitycollisions(0f, ymove)) movey(); } public void movex(){ if(xmove > 0){//moving right int tx = (int) (x + xmove + bounds.x + bounds.width) / tile.tilewidth; if(!collisionwithtile(tx, (int) (y + bounds.y) / tile.tileheight) && !collisionwithtile(tx, (int) (y + bounds.y + bounds.height) / tile.tileheight)){ x += xmove; }else{ x = tx * tile.tilewidth - bounds.x - bounds.width - 1; } }else if(xmove < 0){//moving left int tx = (int) (x + xmove + bounds.x) / tile.tilewidth; if(!collisionwithtile(tx, (int) (y + bounds.y) / tile.tileheight) && !collisionwithtile(tx, (int) (y + bounds.y + bounds.height) / tile.tileheight)){ x += xmove; }else{ x = tx * tile.tilewidth + tile.tilewidth - bounds.x; } } } public void movey(){ if(ymove < 0){//moving int ty = (int) (y + ymove + bounds.y) / tile.tileheight; if(!collisionwithtile((int) (x + bounds.x) / tile.tilewidth, ty) && !collisionwithtile((int) (x + bounds.x + bounds.width) / tile.tilewidth, ty)){ y += ymove; }else{ y = ty * tile.tileheight + tile.tileheight - bounds.y; } }else if(ymove > 0){ //moving down int ty = (int) (y + ymove + bounds.y + bounds.height) / tile.tileheight; if(!collisionwithtile((int) (x + bounds.x) / tile.tilewidth, ty) && !collisionwithtile((int) (x + bounds.x + bounds.width) / tile.tilewidth, ty)){ y += ymove; }else{ y = ty * tile.tileheight - bounds.y - bounds.height - 1; } } } protected boolean collisionwithtile(int x, int y){ return handler.getworld().gettile(x, y).issolid(); } // getters , setters public int gethealth() { return health; } public void sethealth(int health) { this.health = health; } public float getspeed() { return speed; } public void setspeed(float speed) { this.speed = speed; } public float getxmove() { return xmove; } public void setxmove(float xmove) { this.xmove = xmove; } public float getymove() { return ymove; } public void setymove(float ymove) { this.ymove = ymove; } } i implement same abstract method die(); in stone , tree classes also. cannot understand why error. care explain it? tried re-writing code, restarting netbeans.
your code, minimized (check how create mvce) correct , not throw error:
abstract class entity { public abstract void die(); } class player extends creature{ @override public void die() { system.out.println("you died"); } } abstract class creature extends entity{ } so check imports, might have player class in other package.
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