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Rudimentary animated sprite capabilities

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This commit is contained in:
Doyle Thai 2016-06-19 02:16:16 +10:00
parent d44ddf9371
commit eda06bcfe9
1 changed files with 52 additions and 14 deletions
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66
src/WorldTraveller.c
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@ -25,19 +25,19 @@ void worldTraveller_gameInit(GameState *state)
{
/* Initialise assets */
asset_loadTextureImage(
"data/textures/WorldTraveller/TerraSprite.png", texlist_hero);
"data/textures/WorldTraveller/TerraSprite1024.png", texlist_hero);
glCheckError();
asset_loadShaderFiles("data/shaders/sprite.vert.glsl",
"data/shaders/sprite.frag.glsl", shaderlist_sprite);
glCheckError();
state->state = state_active;
state->state = state_active;
state->heroLastDirection = direction_east;
/* Init hero */
Entity *hero = &state->hero;
hero->tex = asset_getTexture(texlist_hero);
hero->size = V2(91.0f, 146.0f);
hero->size = V2(58.0f, 98.0f);
hero->pos = V2(0.0f, 0.0f);
Texture *heroSheet = hero->tex;
@ -51,11 +51,12 @@ void worldTraveller_gameInit(GameState *state)
}
f32 ndcFactor = sheetSize.w;
v2 heroStartPixel = V2(219.0f, 498.0f);
v2 heroStartPixel = V2(746.0f, 1018.0f);
v2 heroSizeOnSheet = V2(58.0f, 98.0f);
v4 heroRect = V4(heroStartPixel.x,
heroStartPixel.y,
heroStartPixel.x + hero->size.w,
heroStartPixel.y - hero->size.h);
heroStartPixel.x + heroSizeOnSheet.w,
heroStartPixel.y - heroSizeOnSheet.h);
v4 heroTexNDC = v4_scale(heroRect, 1.0f/ndcFactor);
@ -191,20 +192,57 @@ void worldTraveller_gameUpdateAndRender(GameState *state, const f32 dt)
Texture *heroSheet = hero->tex;
f32 ndcFactor = CAST(f32)heroSheet->width;
v2 heroStartPixel = V2(219.0f, 498.0f); // direction == east
if (state->heroLastDirection == direction_west)
heroStartPixel = V2(329.0f, 498.0f);
v2 heroStartPixel = V2(746.0f, 1018.0f); // direction == east
v2 heroSizeOnSheet = V2(58.0f, 98.0f);
v4 heroRect = V4(heroStartPixel.x,
heroStartPixel.y,
heroStartPixel.x + hero->size.w,
heroStartPixel.y - hero->size.h);
heroStartPixel.x + heroSizeOnSheet.w,
heroStartPixel.y - heroSizeOnSheet.h);
v4 heroTexNDC = v4_scale(heroRect, 1.0f / ndcFactor);
if (state->heroLastDirection == direction_east)
{
// NOTE(doyle): Flip the x coordinates to flip the tex
v4 copyNDC = heroTexNDC;
heroTexNDC.x = copyNDC.z;
heroTexNDC.z = copyNDC.x;
}
v4 heroTexNDC = v4_scale(heroRect, 1.0f/ndcFactor);
updateBufferObject(state->renderer.vbo, heroTexNDC);
renderer_entity(&state->renderer, hero, 0.0f, V3(0, 0, 0));
Entity npcEnt = {V2(300.0f, 300.0f), V2(0.0f, 0.0f), hero->size, hero->tex};
v4 npcRects[2] = {
{944.0f, 918.0f, 1010.0f, 816.0f},
{944.0f, 812.0f, 1010.0f, 710.0f},
};
LOCAL_PERSIST f32 frameDurationInSec = 0.0f;
LOCAL_PERSIST i32 npcLastRect = 0;
frameDurationInSec -= dt;
v4 npcCurrRect = npcRects[npcLastRect];
if (frameDurationInSec <= 0.0f)
{
if (npcLastRect == 0)
{
npcCurrRect = npcRects[1];
npcLastRect = 1;
}
else
{
npcCurrRect = npcRects[0];
npcLastRect = 0;
}
frameDurationInSec = 0.3f;
}
v4 npcTexNDC = v4_scale(npcCurrRect, 1.0f / ndcFactor);
updateBufferObject(state->renderer.vbo, npcTexNDC);
renderer_entity(&state->renderer, &npcEnt, 0.0f, V3(0, 0, 0));
/* Render */
renderer_entity(&state->renderer, &state->hero, 0.0f, V3(0, 0, 0));
// TODO(doyle): Clean up lines
// Renderer::~Renderer() { glDeleteVertexArrays(1, &this->quadVAO); }
}