424 lines
17 KiB
C
424 lines
17 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <stdbool.h>
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#include <math.h>
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#include <SDL2/SDL.h>
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#include <SDL2/SDL_image.h>
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#include <SDL2/SDL_ttf.h>
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#include "breakout.h"
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#include "vector.h"
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#ifndef __nullptr__
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#define Nullptr(type) (type *)0
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#endif // __nullptr__
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int BLOCK_TextureCount = 24;
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int BREAKOUT_BoxWidth, BREAKOUT_BoxHeight;
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SDL_Texture * BALL_Texture;
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SDL_Texture * PADDLE_Texture;
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SDL_Texture * BLOCK_Texture;
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SDL_Rect * BALL_SourceRects;
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SDL_Rect * PADDLE_SourceRects;
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SDL_Rect * BLOCK_SourceRects;
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Uint8 * PADDLE_MoveLeftKeys, * PADDLE_MoveRightKeys;
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bool BREAKOUT_IsInit = false;
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bool BALL_IsInit = false;
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bool PADDLE_IsInit = false;
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bool BLOCK_IsInit = false;
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Ball ball;
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Paddle paddle;
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Block * blocks;
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int BlockCount = 60; // Move to scenery
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double BALL_Speed = 15.0f;
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int PADDLE_Speed = 10;
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void BREAKOUT_INITIALIZE(SDL_Renderer * renderer, int width, int height){
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if (!BREAKOUT_IsInit) {
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printf("Initializing Game...\n");
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srand(time(NULL));
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BREAKOUT_BoxWidth = width;
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BREAKOUT_BoxHeight = height;
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BALL_Initialize(renderer);
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PADDLE_Initialize(renderer);
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BLOCK_Initialize(renderer);
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ball = BALL_CreateDefault();
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paddle = PADDLE_CreateDefault();
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blocks = malloc(BlockCount * sizeof(Block));
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int index;
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for (int y = 0; y < 6; y++) {
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index = 10 * y;
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for (int x = 0; x < 10; x++) {
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if (x + y == 0) {
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blocks[x + index] = BLOCK_CreateDefault();
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blocks[x + index].TargetRect = (SDL_Rect) {.x = 1, 1, .w = 184, .h = 92 };
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blocks[x + index].TextureIndex = y + x;
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} else {
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blocks[x + index] = BLOCK_CreateDefault();
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blocks[x + index].TargetRect = (SDL_Rect) {.x = ((192 * x) + 4), .y = ((96 * y) + 2), .w = 184, .h = 92 };
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blocks[x + index].TextureIndex = y + x;
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}
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}
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}
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printf("Game initialized!\n");
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BREAKOUT_IsInit = true;
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} else printf("Game is already initialized!\n");
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} /* BREAKOUT_INITIALIZE */
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// This Function is obsolete! Do not use it!
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void BREAKOUT_ChangeSize(int width, int height){
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BREAKOUT_BoxWidth = width;
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BREAKOUT_BoxHeight = height;
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}
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void BREAKOUT_Update(Uint8 * keystate){
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PADDLE_Update(&paddle, keystate); // Update paddle before ball because paddle is not static!
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BALL_Update(&ball, &paddle);
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for (size_t i = 0; i < BlockCount; i++) {
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BLOCK_Update(blocks + i);
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}
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}
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void BREAKOUT_Draw(SDL_Renderer * renderer){
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for (int i = 0; i < BlockCount; i++) {
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BLOCK_Draw(renderer, &(blocks[i]));
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}
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BALL_Draw(renderer, &ball);
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PADDLE_Draw(renderer, &paddle);
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}
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void BREAKOUT_DEINITIALIZE(){
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if (BREAKOUT_IsInit) {
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printf("De-initializing Game...\n");
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for (size_t i = 0; i < BlockCount; i++) {
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BLOCK_DestroyObject(blocks + i);
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}
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free(blocks);
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free(PADDLE_MoveLeftKeys);
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free(PADDLE_MoveRightKeys);
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free(BALL_SourceRects);
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free(PADDLE_SourceRects);
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free(BLOCK_SourceRects);
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BALL_Deinitialize();
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PADDLE_Deinitialize();
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BLOCK_Deinitialize();
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printf("Game de-initialized!\n");
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BREAKOUT_IsInit = false;
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} else printf("Game is already de-initialized!\n");
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}
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void BALL_Initialize(SDL_Renderer * renderer){
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if (!BALL_IsInit) {
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printf("Initializing Ball...\n");
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BALL_Texture = IMG_LoadTexture(renderer, "assets/images/ball.png");
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if (!BALL_Texture) printf("Ball texture failed to load!\n");
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BALL_SourceRects = (SDL_Rect *)malloc(1 * sizeof(SDL_Rect));
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if (!BALL_SourceRects) printf("FATAL! Memory allocation failed!\n");
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BALL_SourceRects[0] = (SDL_Rect) {.x = 0, .y = 0, .w = 512, .h = 512 };
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printf("Ball initialized!\n");
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BALL_IsInit = true;
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} else printf("Ball is already initialized!\n");
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}
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Ball BALL_CreateDefault(){
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double rotation = (double)(rand() % 360);
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return (Ball) {
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.Location = (Vector) {.x = BREAKOUT_BoxWidth / 2 + 300, .y = BREAKOUT_BoxHeight / 2 },
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.Momentum = (Vector) {.x = 0.0f, .y = BALL_Speed },
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.TargetRect = (SDL_Rect) {.x = 0, .y = 0, .w = 50, .h = 50 },
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.Size = 25.0f,
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.Rotation = rotation,
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.RotationValue = 2,
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.TextureIndex = 0
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}; // Objekt für die Eigenschaften des Balls
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}
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void BALL_Draw(SDL_Renderer * renderer, Ball * obj){
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// printf("Ball drawn at (%d|%d)!\n", (obj->TargetRect).x, (obj->TargetRect).x);
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SDL_RenderCopyEx(renderer, BALL_Texture, BALL_SourceRects + (obj->TextureIndex), &(obj->TargetRect), obj->Rotation, NULL, SDL_FLIP_NONE);
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}
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bool BALL_CollideWithRect(Ball * obj, SDL_Rect * rect){
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SDL_Point ballCenter = BALL_GetCenter(obj);
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if (((obj->TargetRect).x) + ((obj->TargetRect).w) < (rect->x)) return false;
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if (((obj->TargetRect).x) > (rect->x) + (rect->w)) return false;
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if (((obj->TargetRect).y) + ((obj->TargetRect).w) < (rect->y)) return false;
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if (((obj->TargetRect).y) > (rect->y) + (rect->h)) return false;
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// Already returned with false if square ball hitbox didnt collide with rect
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Vector center = (Vector) {.x = ballCenter.x, .y = ballCenter.y };
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Vector corner;
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// Folgender Algorithmus ist gefickt, wenn der Ballmittelpunkt im rechteck liegt!
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double perpendicular, oldMomentum, angle;
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oldMomentum = fmod((double)(vectorRotation(obj->Momentum) + 180), 360.0f);
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bool left, right, top, bottom, yMid = false, xMid = false;
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left = (ballCenter.x) < (rect->x);
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right = (ballCenter.x) > (rect->x) + (rect->w);
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top = (ballCenter.y) < (rect->y);
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bottom = (ballCenter.y) > (rect->y) + (rect->h);
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if (top)
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corner.y = rect->y;
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else if (bottom)
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corner.y = (rect->y) + (rect->w);
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else
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yMid = true;
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if (left)
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corner.x = rect->x;
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else if (right)
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corner.x = (rect->x) + (rect->w);
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else
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xMid = true;
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if (yMid)
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(obj->Momentum).x = -(obj->Momentum).x;
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if (xMid)
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(obj->Momentum).y = -(obj->Momentum).y;
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if (yMid && xMid) printf("WARNING: Ball is completely inside block!\n");
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if (yMid || xMid) { // Ball collides with Edge
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} else { // Ball collides with corner
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/*
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* perpendicular = vectorRotation(vectorSub(center, corner));
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* angle = fabs(perpendicular - oldMomentum);
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* if (oldMomentum < perpendicular)
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* (obj->Momentum) = getScaledDirectionalUnitVector((oldMomentum + (2 * angle)), BALL_Speed);
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* else
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* (obj->Momentum) = getScaledDirectionalUnitVector((oldMomentum - (2 * angle)), BALL_Speed);
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*/
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}
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return true;
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} /* BALL_CollideWithRect */
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bool RECT_Collide(SDL_Rect * rect1, SDL_Rect * rect2){
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if ((rect1->x) + (rect1->w) < (rect2->x)) {
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return false;
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}
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if ((rect1->x) > (rect2->x) + (rect2->w)) {
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return false;
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}
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if ((rect1->y) + (rect1->w) < (rect2->y)) {
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return false;
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}
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if ((rect1->y) > (rect2->y) + (rect2->h)) {
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return false;
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}
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return true;
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}
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void BALL_SteerMomentum(Ball * obj, Paddle * paddle){
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int paddleHalfLen = ((paddle->TargetRect).w / 2.0f);
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double offset = (((obj->TargetRect).x) + (obj->Size)) - ((paddle->TargetRect).x + paddleHalfLen);
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offset *= 60.0f;
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offset /= (double)(paddleHalfLen);
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printf("Offset = %.2f\n", offset);
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(obj->Momentum) = getDirectionalUnitVector(offset);
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}
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void RECT_SetTargetPos(SDL_Rect * rect, Vector * Location){
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rect->x = (int)round(Location->x);
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rect->y = (int)round(Location->y);
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}
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SDL_Point BALL_GetCenter(Ball * obj){
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return (SDL_Point) {.x = ((obj->TargetRect).x) + (obj->Size), .y = ((obj->TargetRect).y) + (obj->Size) };
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}
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void BALL_Update(Ball * obj, Paddle * paddle){
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Vector oldMomentum = obj->Momentum;
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Vector oldLocation = obj->Location;
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SDL_Point ballCenter = BALL_GetCenter(obj);
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(obj->Rotation) += (obj->RotationValue); // No effect on physics
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(obj->Location) = vectorAdd((obj->Location), oldMomentum);
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if (BALL_CollideWithRect(obj, &(paddle->TargetRect))) {
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(obj->Location) = oldLocation; // Maybe remove this
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BALL_SteerMomentum(obj, paddle); // Sets it to unit vector!
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// Following assumes that the paddle position was udated before the ball was updated
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// BUG/GLITCH: Make sure that the postition of the ball is not shifted into the borders of the game!
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while (RECT_Collide(&(obj->TargetRect), &(paddle->TargetRect))) { // Move away from rect in small steps
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(obj->Location) = vectorAdd((obj->Location), (obj->Momentum));
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RECT_SetTargetPos(&(obj->TargetRect), &(obj->Location));
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}
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(obj->Momentum) = vectorScaleTo((obj->Momentum), BALL_Speed);
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}
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for (size_t i = 0; i < BlockCount; i++) {
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if (blocks[i].HP <= 0) continue;
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oldMomentum = obj->Momentum;
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oldLocation = obj->Location;
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if (BALL_CollideWithRect(obj, &(blocks[i].TargetRect))) {
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BLOCK_DealDamage(blocks + i, 1);
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(obj->Location) = vectorAdd(oldLocation, (obj->Momentum));
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RECT_SetTargetPos(&(obj->TargetRect), &(obj->Location));
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}
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}
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if ((obj->Location).y > BREAKOUT_BoxHeight) // Collide with box boundaries
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(obj->Location) = (Vector) {.x = BREAKOUT_BoxWidth / 2 + 300, .y = BREAKOUT_BoxHeight / 2 }; // Dead
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else if ((obj->Location).y < 0.0f)
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(obj->Momentum).y = -(obj->Momentum).y;
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if ((obj->Location).x < 0.0f || (obj->Location).x > BREAKOUT_BoxWidth - (2 * (obj->Size)))
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(obj->Momentum).x = -(obj->Momentum).x;
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RECT_SetTargetPos(&(obj->TargetRect), &(obj->Location));
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} /* BALL_Update */
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void BALL_DestroyObject(Ball * obj){
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}
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void BALL_Deinitialize(){
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if (BALL_IsInit) {
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printf("De-initializing Ball...\n");
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SDL_DestroyTexture(BALL_Texture);
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printf("Ball de-initialized!\n");
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BALL_IsInit = false;
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} else printf("Ball is already de-initialized!\n");
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}
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void PADDLE_Initialize(SDL_Renderer * renderer){
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if (!PADDLE_IsInit) {
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printf("Initializing Paddle...\n");
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PADDLE_Texture = IMG_LoadTexture(renderer, "assets/images/paddle.png");
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if (!PADDLE_Texture) printf("Paddle texture failed to load!\n");
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PADDLE_SourceRects = (SDL_Rect *)malloc(1 * sizeof(SDL_Rect));
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if (!PADDLE_SourceRects) printf("FATAL! Memory allocation failed!\n");
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PADDLE_SourceRects[0] = (SDL_Rect) {.x = 0, .y = 0, .w = 1000, .h = 100 };
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PADDLE_MoveLeftKeys = (Uint8 *)malloc(2 * sizeof(Uint8));
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if (!PADDLE_MoveLeftKeys) printf("FATAL! Memory allocation failed!\n");
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PADDLE_MoveRightKeys = (Uint8 *)malloc(2 * sizeof(Uint8));
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if (!PADDLE_MoveRightKeys) printf("FATAL! Memory allocation failed!\n");
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PADDLE_MoveLeftKeys[0] = 2; // Erster wert gibt größe des arrays an
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PADDLE_MoveLeftKeys[1] = SDL_SCANCODE_LEFT;
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PADDLE_MoveLeftKeys[2] = SDL_SCANCODE_A;
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PADDLE_MoveRightKeys[0] = 2;
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PADDLE_MoveRightKeys[1] = SDL_SCANCODE_RIGHT;
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PADDLE_MoveRightKeys[2] = SDL_SCANCODE_D;
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printf("Paddle initialized!\n");
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PADDLE_IsInit = true;
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} else printf("Paddle is already initialized!\n");
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} /* PADDLE_Initialize */
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Paddle PADDLE_CreateDefault(){
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int defaultpaddlewidth = 300;
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return (Paddle) {
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.TargetRect = (SDL_Rect) {.x = (BREAKOUT_BoxWidth - defaultpaddlewidth) / 2, .y = BREAKOUT_BoxHeight - 100, .w = defaultpaddlewidth, .h = 30 },
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.TextureIndex = 0
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}; // Objekt für die Eigenschaften des Balls
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}
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void PADDLE_Draw(SDL_Renderer * renderer, Paddle * obj){
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// printf("Paddle drawn at (%d|%d)!\n", (obj->TargetRect).x, (obj->TargetRect).x);
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SDL_RenderCopy(renderer, PADDLE_Texture, PADDLE_SourceRects + (obj->TextureIndex), &(obj->TargetRect));
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// SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
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// SDL_RenderDrawRect(renderer, &(obj->TargetRect));
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}
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bool KeyPressed(Uint8 * keystate, Uint8 * keyArray){
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for (int i = 0; i < (*keyArray); i++) {
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if (keystate[keyArray[(i + 1)]]) return true;
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}
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return false;
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}
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void constrain(int * variable, int min, int max){
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if (*variable > max)
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*variable = max;
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else if (*variable < min)
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*variable = min;
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}
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void PADDLE_Update(Paddle * obj, Uint8 * keystate){
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bool leftKeyPressed = KeyPressed(keystate, PADDLE_MoveLeftKeys), rightKeyPressed = KeyPressed(keystate, PADDLE_MoveRightKeys);
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if (leftKeyPressed && (!rightKeyPressed)) {
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((obj->TargetRect).x) -= PADDLE_Speed;
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} else if ((!leftKeyPressed) && rightKeyPressed) {
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((obj->TargetRect).x) += PADDLE_Speed;
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}
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constrain(&((obj->TargetRect).x), 0, (BREAKOUT_BoxWidth - ((obj->TargetRect).w)));
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}
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void PADDLE_DestroyObject(Paddle * obj){
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}
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void PADDLE_Deinitialize(){
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if (PADDLE_IsInit) {
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printf("De-initializing Paddle...\n");
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SDL_DestroyTexture(PADDLE_Texture);
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printf("Paddle de-initialized!\n");
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PADDLE_IsInit = false;
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} else printf("Paddle is already de-initialized!\n");
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}
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void BLOCK_Initialize(SDL_Renderer * renderer){
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if (!BLOCK_IsInit) {
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printf("Initializing Block...\n");
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BLOCK_Texture = IMG_LoadTexture(renderer, "assets/images/spritesheet.png");
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if (!BLOCK_Texture) printf("Block texture failed to load!\n");
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BLOCK_SourceRects = (SDL_Rect *)malloc(BLOCK_TextureCount * sizeof(SDL_Rect));
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if (!BLOCK_SourceRects) printf("FATAL! Memory allocation failed!\n");
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BLOCK_SourceRects[0] = (SDL_Rect) {.x = 2000, .y = 1500, .w = 1000, .h = 500 };
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BLOCK_SourceRects[1] = (SDL_Rect) {.x = 2000, .y = 2000, .w = 1000, .h = 500 };
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BLOCK_SourceRects[2] = (SDL_Rect) {.x = 2000, .y = 2500, .w = 1000, .h = 500 };
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BLOCK_SourceRects[3] = (SDL_Rect) {.x = 0, .y = 3000, .w = 1000, .h = 500 };
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BLOCK_SourceRects[4] = (SDL_Rect) {.x = 1000, .y = 3000, .w = 1000, .h = 500 };
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BLOCK_SourceRects[5] = (SDL_Rect) {.x = 2000, .y = 3000, .w = 1000, .h = 500 };
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BLOCK_SourceRects[6] = (SDL_Rect) {.x = 0, .y = 3500, .w = 1000, .h = 500 };
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BLOCK_SourceRects[7] = (SDL_Rect) {.x = 1000, .y = 3500, .w = 1000, .h = 500 };
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BLOCK_SourceRects[8] = (SDL_Rect) {.x = 2000, .y = 3500, .w = 1000, .h = 500 };
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BLOCK_SourceRects[9] = (SDL_Rect) {.x = 0, .y = 500, .w = 1000, .h = 500 };
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BLOCK_SourceRects[10] = (SDL_Rect) {.x = 2000, .y = 0, .w = 1000, .h = 500 };
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BLOCK_SourceRects[11] = (SDL_Rect) {.x = 0, .y = 1000, .w = 1000, .h = 500 };
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BLOCK_SourceRects[12] = (SDL_Rect) {.x = 0, .y = 1500, .w = 1000, .h = 500 };
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BLOCK_SourceRects[13] = (SDL_Rect) {.x = 1000, .y = 0, .w = 1000, .h = 500 };
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BLOCK_SourceRects[14] = (SDL_Rect) {.x = 1000, .y = 500, .w = 1000, .h = 500 };
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BLOCK_SourceRects[15] = (SDL_Rect) {.x = 1000, .y = 1000, .w = 1000, .h = 500 };
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BLOCK_SourceRects[16] = (SDL_Rect) {.x = 1000, .y = 1500, .w = 1000, .h = 500 };
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BLOCK_SourceRects[17] = (SDL_Rect) {.x = 0, .y = 2000, .w = 1000, .h = 500 };
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BLOCK_SourceRects[18] = (SDL_Rect) {.x = 1000, .y = 2000, .w = 1000, .h = 500 };
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BLOCK_SourceRects[19] = (SDL_Rect) {.x = 0, .y = 2500, .w = 1000, .h = 500 };
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BLOCK_SourceRects[20] = (SDL_Rect) {.x = 1000, .y = 2500, .w = 1000, .h = 500 };
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BLOCK_SourceRects[21] = (SDL_Rect) {.x = 0, .y = 0, .w = 1000, .h = 500 };
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BLOCK_SourceRects[22] = (SDL_Rect) {.x = 2000, .y = 500, .w = 1000, .h = 500 };
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BLOCK_SourceRects[23] = (SDL_Rect) {.x = 2000, .y = 1000, .w = 1000, .h = 500 };
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printf("Block initialized!\n");
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BLOCK_IsInit = true;
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} else printf("Block is already initialized!\n");
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} /* PADDLE_Initialize */
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Block BLOCK_CreateDefault() {
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return (Block) {
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.TargetRect = (SDL_Rect) {.x = 0, .y = 0, .w = 100, .h = 50 },
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.TextureIndex = (rand() % BLOCK_TextureCount),
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.HP = 1
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}; // Objekt für die Eigenschaften des Balls
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}
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void BLOCK_Draw(SDL_Renderer * renderer, Block * obj){
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if ((obj->HP) > 0) {
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// printf("Block drawn at (%d|%d)!\n", (obj->TargetRect).x, (obj->TargetRect).y);
|
|
SDL_RenderCopy(renderer, BLOCK_Texture, (BLOCK_SourceRects + (obj->TextureIndex)), &(obj->TargetRect));
|
|
}
|
|
}
|
|
|
|
void BLOCK_DealDamage(Block * obj, int dmg){
|
|
if (((obj->HP) -= dmg) <= 0) printf("Block was destroyed!\n");
|
|
}
|
|
|
|
void BLOCK_Update(Block * obj){
|
|
// Do nothing currently
|
|
}
|
|
void BLOCK_DestroyObject(Block * obj){
|
|
}
|
|
|
|
void BLOCK_Deinitialize(){
|
|
if (BLOCK_IsInit) {
|
|
printf("De-initializing Block...\n");
|
|
SDL_DestroyTexture(BLOCK_Texture);
|
|
printf("Block de-initialized!\n");
|
|
BLOCK_IsInit = false;
|
|
} else printf("Block is already de-initialized!\n");
|
|
}
|