williamjcm/raycastlib
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Add shear

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This commit is contained in:
Miloslav Číž 2018-09-12 12:44:39 +02:00
parent 7ddebc7b38
commit df696d9f99
1 changed files with 12 additions and 1 deletions
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13
testSDL.c
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@ -29,13 +29,15 @@
#define max(a,b) ((a) > (b) ? (a) : (b)) #define max(a,b) ((a) > (b) ? (a) : (b))
#define KEYS 6 #define KEYS 8
#define KEY_UP 0 #define KEY_UP 0
#define KEY_RIGHT 1 #define KEY_RIGHT 1
#define KEY_DOWN 2 #define KEY_DOWN 2
#define KEY_LEFT 3 #define KEY_LEFT 3
#define KEY_Q 4 #define KEY_Q 4
#define KEY_W 5 #define KEY_W 5
#define KEY_A 6
#define KEY_S 7
int keys[KEYS]; int keys[KEYS];
@ -963,6 +965,8 @@ int main()
case SDL_SCANCODE_LEFT: keyIndex = KEY_LEFT; break; case SDL_SCANCODE_LEFT: keyIndex = KEY_LEFT; break;
case SDL_SCANCODE_Q: keyIndex = KEY_Q; break; case SDL_SCANCODE_Q: keyIndex = KEY_Q; break;
case SDL_SCANCODE_W: keyIndex = KEY_W; break; case SDL_SCANCODE_W: keyIndex = KEY_W; break;
case SDL_SCANCODE_A: keyIndex = KEY_A; break;
case SDL_SCANCODE_S: keyIndex = KEY_S; break;
default: break; default: break;
} }
break; break;
@ -1008,6 +1012,13 @@ int main()
else if (keys[KEY_LEFT]) else if (keys[KEY_LEFT])
camera.direction -= step2; camera.direction -= step2;
const int shearAdd = 10;
if (keys[KEY_A])
camera.shear = camera.shear + shearAdd <= SCREEN_HEIGHT ? camera.shear + shearAdd : SCREEN_HEIGHT;
else if (keys[KEY_S])
camera.shear = camera.shear - shearAdd >= -1 * SCREEN_HEIGHT ? camera.shear - shearAdd : -1 * SCREEN_HEIGHT;
SDL_RenderClear(renderer); SDL_RenderClear(renderer);
SDL_RenderCopy(renderer,texture,NULL,NULL); SDL_RenderCopy(renderer,texture,NULL,NULL);
SDL_RenderPresent(renderer); SDL_RenderPresent(renderer);